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A Complete Guide about Solar Panel Installation Step by StepProcedure with Calculation and ImagesPosted by Electrical Technology 05032013in BasicImportant Electrical Formulas Batteries Electrical Wiring (Basic for Home) Solar Panel System108 Comments
Solar Panel Installation Step by Step Procedure
A Complete Guide about Solar Panel Installation
A Complete Note on Solar Panel Installation Calculation about No of Solar Panels batteries Rating Backup time InverterUPS Rating Load and required Watts with Circuit Diagrams
If you pick this post related to solar panel installation You will be able torarr To calculate the no of solar panel (with rating)rarr To calculate the rating of Solar panelrarr To calculate the rating of batteries for Solar panel system
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rarr To calculate the back up time of batteriesrarr To calculate the charging current for batteriesrarr To Calculate Charging time for batteriesrarr UPS Rating for load requirement and much morehellipBefore starting We recommend to read this Article about Solar panel installation and Photovoltaic PaneSelection for home
PV Types of Solar Panel and Which one is the best PV Panel
Now lets beginSupposeLoad = 800 WattsInverters Rating =Required Backup time for batteries = 3 HoursRequired No of Solar Panel =No of batteries =
SolutionInverter should be greater 25 than the total Load800 x (25100) = 200800+200 = 1000 WattsThis is the rating of the UPS (Inverter) Now the required Back up Time in Hours = 3 HoursSuppose we are going to install 100Ah 12 V batteries12V x 100Ah = 1200 WhNow for One Battery (ie the Backup time of one battery)1200 Wh 800 W = 15 HoursBut our required Backup time is 3 HoursTherefore 315 = 2rarr ie we will now connect two (2) batteries each of 100Ah 12VIf the number of batteries given and you want to know the Backup Time for these given batteries thenUse this formula 1200 Wh x 2 Batteries = 2400 Wh 2400 Wh 800 W = 3 hoursSo this is a 12 V inverter system Now we will install two (2) batteries (each of 12V 100 Ah) in Parallel
Why Batteries in Parallel not in SeriesBecause this is a 12Vinverter System so if we connect these batteries in parallel then the Voltage ofbatteries (12 V) remains same while itrsquos Ah (Ampere Hour) rating will be increase(Remember In parallel Connection Voltage will be same in each wire or section while current will bedifferent ie current is additive eg I1+I2+I3hellip+In = 100Ah +100Ah = 200AhIn Series Circuits Current is same in each wire or section while voltage is different ie Voltage is additiveegV1+V2+V3hellipVnFor The above system if we connect these batteries in series instead of parallel thenThe rating of batteries become V1+V2 = 24V while the current rating would be same ie100Ah We will now connect 2 batteries in parallel (each of 100Ah 12V)Therefore for 2 Batteries200 Ah 12VNow Required Charging Current for these two batteries (Charging current should be 110 of batteries Ah)200Ah x (110) = 20ANow the required No of Solar PanelsP = VIP = 12V x 20 AP = 240Watts This is our required watts for solar panel (only for battery charging and then battery will supply power tothe load)Now240W60W = 4 Solar panels Therefore we will connect 4 Solar Panels (each of 60W12V5A) in parallel
Circuit Diagram for the above Calculation for Solar Panel Installation
Click image to enlarge
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This was only for battery Charging (and then battery will supply power to the desired Load) ie for thoseelectrical appliances which will get power through inverter (from charged batteries)Now suppose there is some (Directly connected to the panels through inverters (without battery) loadabout 10A which we have connect directly to the solar panel (No batteries required)In this case required current (20 A for Batteries Charging and 10 A for direct connected load throughInverters during sunshine only but batteries will be also charging while panel supply power to the directconnected load In this case total current20A + 10 A = 30ANow I = 30 A then required PowerP = V x I = 12V x 30A = 360Watts(This is for both Direct Load and Batteries Charging)Now36060W = 6Therefore we will Connect 6 No of Solar panels (each of 60W 12V5A)And We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22Amperes (22A (For Battery Charging)+10A(for direct DC Load)hellipSo we can use a charge controller about30-32 Amp Note this calculation is base on ideal case so it is recommended to always choose a Panel some biggerthen we need Because when Solar Panel charges the battery so it is wasting some power on charging toothis is another Circuit Diagram for the above Calculation for Solar Panel Installation
Click image to enlarge
By Engr Wasim KhanCopyright material wwwelectricaltechnologyorg
You May Also ReadHow much Watts Solar Panel We need for our Home Electrical appliances
Easy Charging Time and Charging Current formula for Batteries (With Example of
120Ah Battery)
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Electrical Engineer Writing for wwwelectricaltechnologyorg You can contact us via Email or onFacebook follow us on Electrical Technology on Google+ Also Follow Engr Wasim Khanon Google+
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05032013 at 348 pmAnonymous
Boss you are doing great job I am proud of you we belong to same country
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05042013 at 437 amElectrical Technology
Thanks for Encourages It is really restore my energy
Reply
05072013 at 1122 amNicky Mbaimbai
This is a very informative article Thank you for taking time to share your knowledge
Reply
05072013 at 126 pmElectrical Technology
Thanks for Your Appreciation
Reply
04202014 at 544 amAnonymous
I have a doubt ie i connected 4 noamp39s 12V 145Wp solar panels in parallel (4x8A)approximately with 150AH battery 850VA inverter As per the above calculations my connectionis wrong How could i correct it
Reply
05082013 at 717 amabdulla shaik
if 220 or 380 v power supply wats the calculations ltbr gt
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05082013 at 1235 pmElectrical Technology
No matter because this calculation is based on Current for Load so if 380 instead of 220 thencurrent will be slightly decreased ltbr gtBecause if you increase Voltage then current decreases( rarr P = VI )ltbr gtSo Keep in Mind Load only
Reply
05172013 at 953 ammostafa mosa
Dear Sirltbr gtltbr gtThank you very much for these information But I think you didnamp39t take in yourconsideration the change in the the temperature or the irradiation which will affect the output solarpowerltbr gtltbr gtRegardsltbr gtMostafaltbr gt
Reply
05182013 at 736 amElectrical Technology
Dear Mostafa MosahellipThanks 4 your feedbackltbr gtthis calculation is base on ideal case Justsee the last ampquot Noteampquot of this Article Thanks
Reply
05202013 at 527 amAbdul Gayaz
Dear Sirltbr gtltbr gt The Info which you are sharing helps me alot thanx 4r sharing such valuableinformation I completed my Btech in the stream of Electrical Iamp39m very much interested in knowingthe calculations of the Load I have some doubts regarding the selection of ratings of the battery and theconnection of battery ltbr gt1Here you have taken 100Ah 12V batteries as reference is
Reply
Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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rarr To calculate the back up time of batteriesrarr To calculate the charging current for batteriesrarr To Calculate Charging time for batteriesrarr UPS Rating for load requirement and much morehellipBefore starting We recommend to read this Article about Solar panel installation and Photovoltaic PaneSelection for home
PV Types of Solar Panel and Which one is the best PV Panel
Now lets beginSupposeLoad = 800 WattsInverters Rating =Required Backup time for batteries = 3 HoursRequired No of Solar Panel =No of batteries =
SolutionInverter should be greater 25 than the total Load800 x (25100) = 200800+200 = 1000 WattsThis is the rating of the UPS (Inverter) Now the required Back up Time in Hours = 3 HoursSuppose we are going to install 100Ah 12 V batteries12V x 100Ah = 1200 WhNow for One Battery (ie the Backup time of one battery)1200 Wh 800 W = 15 HoursBut our required Backup time is 3 HoursTherefore 315 = 2rarr ie we will now connect two (2) batteries each of 100Ah 12VIf the number of batteries given and you want to know the Backup Time for these given batteries thenUse this formula 1200 Wh x 2 Batteries = 2400 Wh 2400 Wh 800 W = 3 hoursSo this is a 12 V inverter system Now we will install two (2) batteries (each of 12V 100 Ah) in Parallel
Why Batteries in Parallel not in SeriesBecause this is a 12Vinverter System so if we connect these batteries in parallel then the Voltage ofbatteries (12 V) remains same while itrsquos Ah (Ampere Hour) rating will be increase(Remember In parallel Connection Voltage will be same in each wire or section while current will bedifferent ie current is additive eg I1+I2+I3hellip+In = 100Ah +100Ah = 200AhIn Series Circuits Current is same in each wire or section while voltage is different ie Voltage is additiveegV1+V2+V3hellipVnFor The above system if we connect these batteries in series instead of parallel thenThe rating of batteries become V1+V2 = 24V while the current rating would be same ie100Ah We will now connect 2 batteries in parallel (each of 100Ah 12V)Therefore for 2 Batteries200 Ah 12VNow Required Charging Current for these two batteries (Charging current should be 110 of batteries Ah)200Ah x (110) = 20ANow the required No of Solar PanelsP = VIP = 12V x 20 AP = 240Watts This is our required watts for solar panel (only for battery charging and then battery will supply power tothe load)Now240W60W = 4 Solar panels Therefore we will connect 4 Solar Panels (each of 60W12V5A) in parallel
Circuit Diagram for the above Calculation for Solar Panel Installation
Click image to enlarge
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This was only for battery Charging (and then battery will supply power to the desired Load) ie for thoseelectrical appliances which will get power through inverter (from charged batteries)Now suppose there is some (Directly connected to the panels through inverters (without battery) loadabout 10A which we have connect directly to the solar panel (No batteries required)In this case required current (20 A for Batteries Charging and 10 A for direct connected load throughInverters during sunshine only but batteries will be also charging while panel supply power to the directconnected load In this case total current20A + 10 A = 30ANow I = 30 A then required PowerP = V x I = 12V x 30A = 360Watts(This is for both Direct Load and Batteries Charging)Now36060W = 6Therefore we will Connect 6 No of Solar panels (each of 60W 12V5A)And We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22Amperes (22A (For Battery Charging)+10A(for direct DC Load)hellipSo we can use a charge controller about30-32 Amp Note this calculation is base on ideal case so it is recommended to always choose a Panel some biggerthen we need Because when Solar Panel charges the battery so it is wasting some power on charging toothis is another Circuit Diagram for the above Calculation for Solar Panel Installation
Click image to enlarge
By Engr Wasim KhanCopyright material wwwelectricaltechnologyorg
You May Also ReadHow much Watts Solar Panel We need for our Home Electrical appliances
Easy Charging Time and Charging Current formula for Batteries (With Example of
120Ah Battery)
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Electrical Engineer Writing for wwwelectricaltechnologyorg You can contact us via Email or onFacebook follow us on Electrical Technology on Google+ Also Follow Engr Wasim Khanon Google+
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raquo
05032013 at 348 pmAnonymous
Boss you are doing great job I am proud of you we belong to same country
Reply
1246
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7
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103K
05042013 at 437 amElectrical Technology
Thanks for Encourages It is really restore my energy
Reply
05072013 at 1122 amNicky Mbaimbai
This is a very informative article Thank you for taking time to share your knowledge
Reply
05072013 at 126 pmElectrical Technology
Thanks for Your Appreciation
Reply
04202014 at 544 amAnonymous
I have a doubt ie i connected 4 noamp39s 12V 145Wp solar panels in parallel (4x8A)approximately with 150AH battery 850VA inverter As per the above calculations my connectionis wrong How could i correct it
Reply
05082013 at 717 amabdulla shaik
if 220 or 380 v power supply wats the calculations ltbr gt
Reply
05082013 at 1235 pmElectrical Technology
No matter because this calculation is based on Current for Load so if 380 instead of 220 thencurrent will be slightly decreased ltbr gtBecause if you increase Voltage then current decreases( rarr P = VI )ltbr gtSo Keep in Mind Load only
Reply
05172013 at 953 ammostafa mosa
Dear Sirltbr gtltbr gtThank you very much for these information But I think you didnamp39t take in yourconsideration the change in the the temperature or the irradiation which will affect the output solarpowerltbr gtltbr gtRegardsltbr gtMostafaltbr gt
Reply
05182013 at 736 amElectrical Technology
Dear Mostafa MosahellipThanks 4 your feedbackltbr gtthis calculation is base on ideal case Justsee the last ampquot Noteampquot of this Article Thanks
Reply
05202013 at 527 amAbdul Gayaz
Dear Sirltbr gtltbr gt The Info which you are sharing helps me alot thanx 4r sharing such valuableinformation I completed my Btech in the stream of Electrical Iamp39m very much interested in knowingthe calculations of the Load I have some doubts regarding the selection of ratings of the battery and theconnection of battery ltbr gt1Here you have taken 100Ah 12V batteries as reference is
Reply
Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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This was only for battery Charging (and then battery will supply power to the desired Load) ie for thoseelectrical appliances which will get power through inverter (from charged batteries)Now suppose there is some (Directly connected to the panels through inverters (without battery) loadabout 10A which we have connect directly to the solar panel (No batteries required)In this case required current (20 A for Batteries Charging and 10 A for direct connected load throughInverters during sunshine only but batteries will be also charging while panel supply power to the directconnected load In this case total current20A + 10 A = 30ANow I = 30 A then required PowerP = V x I = 12V x 30A = 360Watts(This is for both Direct Load and Batteries Charging)Now36060W = 6Therefore we will Connect 6 No of Solar panels (each of 60W 12V5A)And We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22Amperes (22A (For Battery Charging)+10A(for direct DC Load)hellipSo we can use a charge controller about30-32 Amp Note this calculation is base on ideal case so it is recommended to always choose a Panel some biggerthen we need Because when Solar Panel charges the battery so it is wasting some power on charging toothis is another Circuit Diagram for the above Calculation for Solar Panel Installation
Click image to enlarge
By Engr Wasim KhanCopyright material wwwelectricaltechnologyorg
You May Also ReadHow much Watts Solar Panel We need for our Home Electrical appliances
Easy Charging Time and Charging Current formula for Batteries (With Example of
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05032013 at 348 pmAnonymous
Boss you are doing great job I am proud of you we belong to same country
Reply
1246
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103K
05042013 at 437 amElectrical Technology
Thanks for Encourages It is really restore my energy
Reply
05072013 at 1122 amNicky Mbaimbai
This is a very informative article Thank you for taking time to share your knowledge
Reply
05072013 at 126 pmElectrical Technology
Thanks for Your Appreciation
Reply
04202014 at 544 amAnonymous
I have a doubt ie i connected 4 noamp39s 12V 145Wp solar panels in parallel (4x8A)approximately with 150AH battery 850VA inverter As per the above calculations my connectionis wrong How could i correct it
Reply
05082013 at 717 amabdulla shaik
if 220 or 380 v power supply wats the calculations ltbr gt
Reply
05082013 at 1235 pmElectrical Technology
No matter because this calculation is based on Current for Load so if 380 instead of 220 thencurrent will be slightly decreased ltbr gtBecause if you increase Voltage then current decreases( rarr P = VI )ltbr gtSo Keep in Mind Load only
Reply
05172013 at 953 ammostafa mosa
Dear Sirltbr gtltbr gtThank you very much for these information But I think you didnamp39t take in yourconsideration the change in the the temperature or the irradiation which will affect the output solarpowerltbr gtltbr gtRegardsltbr gtMostafaltbr gt
Reply
05182013 at 736 amElectrical Technology
Dear Mostafa MosahellipThanks 4 your feedbackltbr gtthis calculation is base on ideal case Justsee the last ampquot Noteampquot of this Article Thanks
Reply
05202013 at 527 amAbdul Gayaz
Dear Sirltbr gtltbr gt The Info which you are sharing helps me alot thanx 4r sharing such valuableinformation I completed my Btech in the stream of Electrical Iamp39m very much interested in knowingthe calculations of the Load I have some doubts regarding the selection of ratings of the battery and theconnection of battery ltbr gt1Here you have taken 100Ah 12V batteries as reference is
Reply
Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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05032013 at 348 pmAnonymous
Boss you are doing great job I am proud of you we belong to same country
Reply
1246
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103K
05042013 at 437 amElectrical Technology
Thanks for Encourages It is really restore my energy
Reply
05072013 at 1122 amNicky Mbaimbai
This is a very informative article Thank you for taking time to share your knowledge
Reply
05072013 at 126 pmElectrical Technology
Thanks for Your Appreciation
Reply
04202014 at 544 amAnonymous
I have a doubt ie i connected 4 noamp39s 12V 145Wp solar panels in parallel (4x8A)approximately with 150AH battery 850VA inverter As per the above calculations my connectionis wrong How could i correct it
Reply
05082013 at 717 amabdulla shaik
if 220 or 380 v power supply wats the calculations ltbr gt
Reply
05082013 at 1235 pmElectrical Technology
No matter because this calculation is based on Current for Load so if 380 instead of 220 thencurrent will be slightly decreased ltbr gtBecause if you increase Voltage then current decreases( rarr P = VI )ltbr gtSo Keep in Mind Load only
Reply
05172013 at 953 ammostafa mosa
Dear Sirltbr gtltbr gtThank you very much for these information But I think you didnamp39t take in yourconsideration the change in the the temperature or the irradiation which will affect the output solarpowerltbr gtltbr gtRegardsltbr gtMostafaltbr gt
Reply
05182013 at 736 amElectrical Technology
Dear Mostafa MosahellipThanks 4 your feedbackltbr gtthis calculation is base on ideal case Justsee the last ampquot Noteampquot of this Article Thanks
Reply
05202013 at 527 amAbdul Gayaz
Dear Sirltbr gtltbr gt The Info which you are sharing helps me alot thanx 4r sharing such valuableinformation I completed my Btech in the stream of Electrical Iamp39m very much interested in knowingthe calculations of the Load I have some doubts regarding the selection of ratings of the battery and theconnection of battery ltbr gt1Here you have taken 100Ah 12V batteries as reference is
Reply
Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
05042013 at 437 amElectrical Technology
Thanks for Encourages It is really restore my energy
Reply
05072013 at 1122 amNicky Mbaimbai
This is a very informative article Thank you for taking time to share your knowledge
Reply
05072013 at 126 pmElectrical Technology
Thanks for Your Appreciation
Reply
04202014 at 544 amAnonymous
I have a doubt ie i connected 4 noamp39s 12V 145Wp solar panels in parallel (4x8A)approximately with 150AH battery 850VA inverter As per the above calculations my connectionis wrong How could i correct it
Reply
05082013 at 717 amabdulla shaik
if 220 or 380 v power supply wats the calculations ltbr gt
Reply
05082013 at 1235 pmElectrical Technology
No matter because this calculation is based on Current for Load so if 380 instead of 220 thencurrent will be slightly decreased ltbr gtBecause if you increase Voltage then current decreases( rarr P = VI )ltbr gtSo Keep in Mind Load only
Reply
05172013 at 953 ammostafa mosa
Dear Sirltbr gtltbr gtThank you very much for these information But I think you didnamp39t take in yourconsideration the change in the the temperature or the irradiation which will affect the output solarpowerltbr gtltbr gtRegardsltbr gtMostafaltbr gt
Reply
05182013 at 736 amElectrical Technology
Dear Mostafa MosahellipThanks 4 your feedbackltbr gtthis calculation is base on ideal case Justsee the last ampquot Noteampquot of this Article Thanks
Reply
05202013 at 527 amAbdul Gayaz
Dear Sirltbr gtltbr gt The Info which you are sharing helps me alot thanx 4r sharing such valuableinformation I completed my Btech in the stream of Electrical Iamp39m very much interested in knowingthe calculations of the Load I have some doubts regarding the selection of ratings of the battery and theconnection of battery ltbr gt1Here you have taken 100Ah 12V batteries as reference is
Reply
Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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Reply
05202013 at 258 pmElectrical Technology
Dear N Abdul Gayazltbr gtThanks for your positive feedbackhellipAlso I did not mind but I am toohappy to see that you have interested to learn about these calculationsltbr gthere (in our blog)You have right to ask many more question about desired topic and I will satisfy you as soon aspossible (reallyItrsquos make me too happy to help you) Because I am here only and only for youpeopleltbr gtHere
Reply
11152013 at 1257 pmAbdul Gayaz
Thanks alot for information sir ltbr gtfurther if any doubts arise i will ask you sir Hope youwill clarify them too ltbr gtThanking You Sir
Reply
11152013 at 127 pmElectrical Technology
Most Welcome Dear
Reply
05312013 at 607 pmWAQAS IQBAL
dear sir i need some help plz guide meltbr gtsir we want to run 375W AC submersible pump with solarenergyif we want to run this pump without batteries means online system then how many solar panels(means watt) will be requiredhellip charge controller ratinghellip 24V inverter is designed and we have 85W solarpanel ltbr gt( 18-20V and 35-38A)at output during testinghellip am waitingltbr gt
Reply
06012013 at 725 amElectrical Technology
Dear Waqas Iqbal Here is simple Calculationhellipltbrgthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
06242013 at 1210 pmakhter rasool
hello
Reply
06242013 at 1231 pmakhter rasool
Dear sirltbr gt I want ask you with the reference of (complete note solar penal installation etc sir i haveunderstand the complete installation process accept one thing and that is 200 AH (110( = 20 A as youquoted in your note sir the thing i want to know that is the 20A current for charging the batteries howmuch time it will get to charge the batteries per houre
Reply
06252013 at 1217 pmElectrical Technology
Easy Charging Time and Charging Current Formula for Batteries ( with Example of 120AhBattery) ltbr gt httpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtml
Reply
06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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06242013 at 613 pmAnonymous
the ampquot10 A for direct connected load through Invertersampquot case is not shown in the diagram canyou redraw and 2 additional panels so that we can understand how to connect them
Reply
06252013 at 1218 pmElectrical Technology
Okz
Reply
06262013 at 723 amammar waadallah
hi i have a 650 watt inverter with 2 solar panel with 320 watt total and connected to a 400 AH battery bank(liquid aced type) but have an increasing in temperature for one battery i check the connection and mycharge controller it is OKltbr gtnotes the charge controller amp max 20Altbr gthow can i solve thetemperature problem
Reply
06272013 at 617 amElectrical Technology
Dear Ammar WaadAllah ltbr gtDid you compare your data with above calculation ltbrgtAnd what is the total loadhellip
Reply
06262013 at 431 pmAnonymous
not mentioned about charger controllerplse provide simple schematic diagram of the saidltbr gtjayarajankb
Reply
06272013 at 603 amElectrical Technology
We use Charge Controller about ampere rating ie the charging current for 200Ah battery is 20-22 AmpereshellipSo we can use a charge controller about 2-25 Amp
Reply
07022013 at 400 amAnonymous
hi engrltbr gtI think you should revisit your controller ratingremember you are handling 30A Check thepower factor of your inverterit has great effect on your load and back up timeltbr gtThanks for youreffortltbr gtEngr Raymond
Reply
07022013 at 639 amElectrical Technology
Dear Engr Raymondltbr gtThanks for correction
Reply
07022013 at 1156 amNidheesh Sivan
for a home solar electrification they consumed of 16 amp of electricity per dayplease give me a solarsystem and its calculations
Reply
07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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07022013 at 308 pmElectrical Technology
Dear Nidhesh Sivanltbr gtThen what is the purpose of the above calculationhellipltbr gttry tocalculate like thishellipcome on manits too easy
Reply
07132013 at 1049 amAnonymous
Hi there thnx for the useful informationltbr gtltbr gtI have installed 2 solar panels 150 watt each longwith 2 batteries 12 V 140 AHltbr gtltbr gtMy load is 2 ceiling fans and 2 energy saversltbr gtltbr gtI wantmy batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)ltbr gtltbr gtWhy mybatteries are not being charged fully in a dayltbr gtltbr gtThanks in advance
Reply
07132013 at 508 pmElectrical Technology
Read these two postshellipand you will be able to get the anshellipltbr gt(1)ltbr gtEasy Charging Timeand Charging Current Formula for Batteries ( with Example of 120Ah Battery)ltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtltbr gt(2)ltbr gtBatteries (MCQs with Explanatory Answers)ltbrgthttpwwwelectricaltechnologyorg201306
Reply
07152013 at 1109 amAnonymous
Sir ltbr gt How to deal with Three phase loads while selecting solar panels inverters charge controllers batteries etc ltbr gtltbr gtSecondly if we have some three phase loads and some single phase loads inroom than how we will select system ltbr gtltbr gtWaiting for reply
Reply
07152013 at 515 pmElectrical Technology
Read this Threadltbr gthttpwwwsolarpaneltalkcomshowthreadphp1389-3-phase-electricity-from-solar-panels
Reply
07192013 at 1105 pmgopinath
Recenlty i took 800va hybrid digital inverter with 2100 tubular batteries and 3100 watt poly panels myinverter has solargrid change over switch and technician says it always to be in grid mode and mains gridswitch onbut of articles saying morning time we can switch off main power supply and night time on Hesays if it is in solar mode and mains switch on it did`t draw power from grid ltbr
Reply
07202013 at 1157 amElectrical Technology
Dear Gopinathltbr gtrarr Your Solar Power is 3 x 100Watt = 300 Watts ltbr gtrarr Switch off mainpower supply during full sunshine( Day) so that power will come from panelsltbr gtrarr SwitchOn the main Power supply at Night ( when Sun shine is not available) ie you canamp39t usepanels at night but you can use the energy stored in batteries at night when main supply is offltbr gtrarr As you said about
Reply
07202013 at 154 pmgopinath
Thank Q
Reply
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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Notify me of follow-up comments by email
Notify me of new posts by email
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Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
Follow us on Google+
Join Our Other Social Networks
Electrical Technhellip
+ 1981
Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
07212013 at 1146 amElectrical Technology
Welcome Dear
Reply
07252013 at 512 pmGopinath
Im doing like thatBut at what temperaturelux panels generate currentltbr gtif we charge the batteries atnight time how much current consumed my inverter show some times 8 amps and 1amp ampamp 4 ampsrespectively why its not constant
Reply
07262013 at 103 pmElectrical Technology
Your inverter shows the load current it varies with changing the load ie if your load is to lowthen current will be also low and vice virsa ltbr gtfor more detailhellipltbr gtRead these two postshellipand you will be able to get the main ideahellipltbr gt(1)ltbr gtEasy Charging Time and ChargingCurrent Formula for Batteries ( with Example of 120Ah Battery)ltbrgthttpwwwelectricaltechnologyorg
Reply
07262013 at 454 pmbalaji balu
I want to run 5hp 3 phase motor with solar panel can you please get me the information for thislike whatis the panel ratingbatteries ratinginverter type(power inverter or normal type inverter)ltbr gtltbr gtletme know if any additional requirements ltbr gt Thank you in advance
Reply
11202013 at 1104 pmHARALAMPLE
Well friend but it will be very expensive installationStart current for a such motor is about80Ahelliphellipduring 6 sec if start with loadImagine what inverter size and how many panels will benecessaryhelliphellipI advice you take a cable from the grid
Reply
07102014 at 1128 pmzohaib
[ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ][ WordPress Simple Firewall plugin marked this comment as trash because FailedGASP Bot Filter Test (comment token failure) ]Dear Waseem I also wanted to connect a room cooler which contains an AC motor witha solar system I agree that the starting inrush current is too high so can you suggest acircuit which draws starting current from the grid and when the motor is running andcurrent is normalized then it switches to solar systembatteries
your help will be much appreciated
Reply
08022013 at 730 amGopinath
Do i need MPPT controller for my 800 va solar hybrid inverter if not for how much va systems it is used ltbr gtltbr gti have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home whenchecking the load of them they shows different (90w ampamp 69 ampamp73) respectively (inverter with digitaldisplay im checking each individul light)But according to information tubelight
Reply
08082013 at 757 amWaseem Farooqi
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
Dear Waseem i have install 1004=400 watts solar panel in a serial and connect with them 2 battries of1002=200 amp how long batteries becom full and how long its give me backup time if i use 2 celling fansand 1 tv of 14 inch thankx
Reply
08092013 at 1203 amElectrical Technology
Read These two Articlesltbr gthttpwwwelectricaltechnologyorg201303easy-charging-time-formula-forhtmlltbr gtandltbrgthttpwwwelectricaltechnologyorg201306batteries-mcqs-with-explanatory-answershtmlltbr gtif you still need more help then i am here Thanks
Reply
08132013 at 148 pmPabs Mendoza
This comment has been removed by the author
Reply
08132013 at 150 pmElectrical Technology
By Inverter hellip
Reply
08152013 at 801 pmPadma Priya
Hello Broltbr gt Can we connect the Solar Power directly to an inverter without batteries through a chargecontroller Is it possible to use the solar power in day time without batteries Hope that you can helpme
Reply
08182013 at 602 amElectrical Technology
Dear Padma Priyaltbr gtYes You canhellip As its not good that first we store energy in thebatteries and then convert it to AC during Daytimehellip in other words Connect solar panel toinverter and then connect to Load [During Sun-shine ie day-time]
Reply
08162013 at 900 amAntesh Anand
Will battery charge if we connect battery directly with solar panel without chage control device
Reply
08182013 at 555 amElectrical Technology
Yes As we know that Solar Panel provide DC also Battery Charges on DC So you Canhellip But Donot ignore Safety as Charge controller control [regulate] charge for battery otherwise thebattery life will be reduce
Reply
08252013 at 726 amAnonymous
Dear sirltbr gtI have installed 2 panal of 150 w with two btys 12v 100 ah each in parallel through ups of1000 va 600 w rating total load is about 02 kw wo fridgefreezertv and microwave oven but at one timewe use only300-400 wltbr gtProblem faced areltbr gt1 System starts after 01 hr of sun rise and btysreaches to about 108-9 v by evening still 01 more to sun setltbr gt2 One bty is
Reply
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
Your email address will not be published Required fields are marked
Name
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
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Electrical Technhellip
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Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
08312013 at 559 amAnonymous
sir i want a design calculations procedure for boost dc to ac converterthis converter i ve to connect it withsolar panelltbr gtIn my boost dc-ac converter have four switches wit two inductor and capacitori ve todesign the value for L and Cso kindly sent me a design procedure for this converterltbr gt
Reply
09072013 at 855 pmRehman Saleem
100Ah x 24=2400 Wh (when batteries in series and 200Ah x 12= 2400Wh (when batteries in parallel)ltbr gtltbr gtThan where is the difference Wh are same kindly let me know which connection is superior andwhy
Reply
09072013 at 1115 pmElectrical Technology
Here is the differenceltbr gtIn case of series connection of batteries we have used 100Ahbatteriy but the rating of voltage of the battery is 24V ltbr gtButltbr gtIn case of parallelconnection of battery We used 200Ah Battery but the voltage rating of this battery is 12VltbrgtSo there is a very big difference between 100Ah and 200Ah batteries ltbr gtAnd also it dependon you that what system
Reply
09172013 at 731 pmMuhammad Kashif
AsslamoAlykumltbr gtDear Wasim ltbr gtVery Good WorkTo much easy way to learn about solar andlove this siteltbr gtHere I want to ask a question that in above calculation why you multiply 200Ah with110 (charging time should be 110 of batteries) kindly clear this concept to me I shall be very thankful toyoultbr gtRegards ltbr gtMKashif
Reply
09182013 at 526 amElectrical Technology
Dearltbr gtIt is 200Ah not 200Ahellip So first of all we would find its amperes rating studies andpractical have shown that the safe limit is 10 of battery Ah rating for battery charging currentie 20A amps for charging of 200Ah
Reply
10092013 at 704 amAnonymous
Nice work your have done with the explanation above but I have one question I was going to buy a130watts solar panel to be use for charging a 12V 100Ah battery But when I turned to the back of thesolar panel to check for the specification plate this is what was written Solar Model typemdash SPM 130 -12Peak power (Pm)mdash-130W Maximum power voltage
Reply
10092013 at 325 pmAnonymous
Nice work with the explanation above but I have a question I was going to buy one 130watts solar panelto be used to charging a 12V 100Ah deep cycle battery but when I turned to the back of the solar panel tocheck for specification plate these are the information I saw Solar Model typemdash SPM 130-12 Peak power(Pm)mdash- 130W Maximum power voltage (Vm) mdash-172V Maximum power current (Im
Reply
10092013 at 1126 pmElectrical Technology
A 12V Solar panel gives about 22V(Open Circuit)ltbr gtIn simple wordsltbr gtPanel Wattage =
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
Your email address will not be published Required fields are marked
Name
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
Follow us on Google+
Join Our Other Social Networks
Electrical Technhellip
+ 1981
Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
130Wltbr gtVolts = 12Vltbr gtSo current would be ltbr gtI = PV rarr 130 12 = 1083A (Ideal Case)ltbr gtSo you can use it for 12V 100Ah batteryltbr gtand charging current for 100 Ah battery =100Ah x (10100) = 10Altbr gtand the charging time for this battery would beltbr gt100Ah 10 A= 10 Hrs (Ideal)ltbr gt
Reply
10112013 at 347 amWarner Carter
The Department of Energyrsquos Lawrence Berkeley National Laboratory produces an annual Tracking the Sunreport (pdf file) into the prices of photovoltaic (PV) power systems
Reply
10132013 at 1126 amzubair Ahmad
Respected sirltbr gttell me how we choose invertor voltage size 12 24 48 or 96 ltbr gtltbr gtZubair
Reply
10242013 at 659 amAnonymous
Sirltbr gtIs it okay to connect three batteries in parallel150ah 100ah 100ah
Reply
10242013 at 958 amElectrical Technology
Yes Surehellip
Reply
10302013 at 1203 pmChari
Sir do we have any Calculator forltbr gtCalculation on No of Solar Panels Batteries ratingBackup timeInvertersUPS rating Load and required Watts If so please share the url or CalC on my mail ID(phaneendracharigmailcom) ltbr gtThanks in advance
Reply
11022013 at 1246 amashish kumar
sir thanks for the knowledge aboveltbr gtbut i want to know more related to transparent solar panelltbrgti wnt to study more on this research topic from where should i be able to get
Reply
11202013 at 316 pmTenny Lanre
Hi all I have a project to specify solar panel equiptment required to power a 4200 watts refregirator overa 12 hours period I calculated the equipment wattage over 12 hours to be (50400 watts at 4200 watts perhour) A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this typeof output at once Also a 24volts 200amphour battery will give me
Reply
11212013 at 150 amElectrical Technology
In your case The Power consumption and back up time of batteries it too much highthereforeSolar panel system would be too expensive So i recommend you to do the same with powercable from power grid instead of solar system
Reply
11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
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Dedenkoe Mohamadu This isvery educative
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11242013 at 709 pmAnonymous
Thank you very much sirltbr gt
Reply
11252013 at 449 amElectrical Technology
Welcome dearhellipAnd Thanks for Appreciation
Reply
11262013 at 143 pmnoshin mmuqadas
sir i am working on a projecti have load of 100W i have to design a solar panelplease guide me how todo design calculations of numbers of batteriespanelsinverterspanel factor etcplease send the data onmy id noshinmuqadas555gmailcomltbr gtthanks ltbr gtnoshin muqadas
Reply
12062013 at 1207 pmElectrical Technology
does the above calculation insufficient
Reply
12062013 at 1134 amAB
Hiltbr gtltbr gtPlease tell me the calculation for solar panel to charge 12V 100AH SMF batteries which areconnected in series to get 96Vltbr gtltbr gtThanks in Advance
Reply
12062013 at 1209 pmElectrical Technology
How many batteries and batteries with direct connected load or without direct load
Reply
12072013 at 512 amAB
Dear Sirltbr gtltbr gtI have connected 8 batteries of 12V 100AH SMF batteries through Emerson2KV Online UPSltbr gtDue to load shedding batteries will not get charege on AC power supplyltbr gtHence i m trying for Solar option to charge batteriesltbr gtltbr gtThanks
Reply
12072013 at 119 pmElectrical Technology
Dear ABltbr gtif you want to charge only batteries through solar panel then the total wattage ofbatteries bank = (12V x 100Ah) x 6 batteries = 7200WH ltbr gtand the charging current for these 6batteries = (100Ah x 6) 10 = 60A ltbr gtNow = 12V x 60A = 720W (This is the required wattagefor batteries charge only)ltbr gtNow the required no of solar panelltbr gt720 180 =4ltbr gtSoyou need to
Reply
12092013 at 538 amAB
Sirltbr gtltbr gtI think you are considering 6 batteries of 12V 100AH which are connected inparallel but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in seriesltbrgtAccording to that my charging current for these 8 batteries = 10010 = 10Altbr gtWattage for
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
Your email address will not be published Required fields are marked
Name
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
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Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
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Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
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copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)ltbrgtNow solar panel
Reply
12092013 at 1217 pmElectrical Technology
Absolutely rightltbr gtUse Charge controller about 10-12Altbr gt
Reply
12072013 at 342 amSuresh Satapati
My inverter shows amp39no feedbackamp39 when sunlight night time it is good what is this problem
Reply
12072013 at 101 pmElectrical Technology
Battery Problem
Reply
12252013 at 526 amMr Relax
thanks
Reply
12302013 at 722 amZelus Solar
Hello sir ltbr gtWith reference to the above calculation may i know how much sun hours have you keptfor calculation for how much sun hour s the batteries being charged for 800 watts loads Thank you
Reply
12302013 at 331 pmElectrical Technology
Readltbr gthttpwwwelectricaltechnologyorg201212how-much-watts-solar-panel-we-need-forhtml
Reply
12302013 at 753 amZelus Solar
Hello sir I need some clarifications ltbr gtWith regards to your above calculation you have stated that fora load of 800watts it requires two 100 ah battery for a backup for 3 hours will that 200ah battery satisfythe load of 800w for 3 hours practicallyltbr gtltbr gtRefering to the formula ltbr gtltbr gtBatterycapacity = (total load backup hours) battery loss system voltageltbr gt
Reply
12302013 at 344 pmElectrical Technology
What is this (064) And how did you find it
Reply
01022014 at 534 amZelus Solar
There are some losses and efficiency factors playing a major role in outputltbr gtBattery efficiency 08ltbr gtDOD depth of discharge 08ltbr gtltbr gtif your using inverter then the factor is 09ltbr gtltbr gt
Reply
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
Your email address will not be published Required fields are marked
Name
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
Follow us on Google+
Join Our Other Social Networks
Electrical Technhellip
+ 1981
Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
01032014 at 200 pmcikintan
Siri am working on a projecti have load of 120kWHmnt And i want to generate 200kWHmnti have todesign a solar panel heat collector and stored it in power bankplease guide me how to do designcalculations of numbers of batteriespanelsinverterspanel factor etcplease send the data on my idsitifairuzzakkigmailcomltbr gtthanks
Reply
01062014 at 819 pmusama shafiq
sir yeh artical download ho skta hy kayaltbr gt
Reply
02012014 at 318 amGerald Ivan Valdez
Thank you very much for this very informative and useful article I am very happy to read this liked
Reply
03012014 at 551 pmsatish kumar
Hai ltbr gtVery nice discussion i have started reading this with 0 knowledge on Solar power now i gainedgood knowledge thanks for this workltbr gtAfter the calculation i need around 220 AH battery is requiredfor me Now I have 100Ah battery and am planning to connect 150 Ah battery in parallel ltbr gtis itsuggestible 100+150 AH= 250AH comibnationhellipltbr gtltbr gtThanks ltbr gtDr Kumar
Reply
03142014 at 403 amAnon Sunil
HIltbr gtI have setup 120watt panel with 30amp charge controller with 72ah battery for funltbr gtDuringDaytime I use it to power my laptop ( using laptop car charger) and draw current directly from panel Butthis goes unused most of the daysltbr gtI am planning to expand this setup as the battery (from my oldups) is of low capacity I am planning to use 88ah or 100ah (tubular as they all
Reply
03142014 at 640 amAnonymous
hello sir thanks for this great knowledgeltbr gti want to install 5 kw solar pv then please tell me about theinverter i want to use solar inverter so there will be no use of dc controller (shown in figure) and i want touse 1500Ah 12v battery then please guide me the rating of panel inverter and battery bank (back up 4 hr)ASAP email-mukeshyadav59yahoocoin
Reply
03262014 at 539 amBASKY DV
Dear Sirltbr gtltbr gtI have a doubt how to select the voltage system (ie 12V or 24 Volt in DC) or11KV 22KV 33KV voltage in AC for required power in electrical systemltbr gt
Reply
04132014 at 539 pmieesab khan
i have at random got installed solar with 10 panels of monochrome 150 wt and 3 kv hybrid NS and 12 v90ah 4 batteries arranged for 24 v these can run two ceiling fans for 5 hours is it ok as i am feeling itunsatisfactory
Reply
05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
Reply
05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
Reply
05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
Reply
05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
Reply
05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
Reply
05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
Reply
05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
Reply
05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
Reply
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
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08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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05022014 at 732 amAnonymous
Hiltbr gtMy name is Abraham Oni from Nigeria West Africaltbr gtI can not but write to appreciate thisgreat information made available to all at no cost I thoughgt it wont cost me anything to say thank youfor clearing my doubts about some issues well discussed here They are really helpfulltbr gtI will love tolearn more from you sir and if possible and if you dont mind becoming my teacher on
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05102014 at 702 pmAnonymous
Aslam-o-Alikum Sir Im Kashif Raza from Lahore Kindly look deeply in my case I have a UPS of 1000 Watt(as the dealer said) and have attached 2 battries of 175 Ah in series ie 24 V 175 Ah I recently bought 2solar panels of 150 W each and charge controller of 30 Amp Kindly guide me that how can I makeconnections I want both WAPDA and solar charging I mean at day time battries must be
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05182014 at 1219 pmAnonymous
hi dear I have batteries that have 2 volts and 800 amps total (24 batteries) and my load is 8000watts whatsolar system will be suitable for me and also what will be the backup of these batteries ltbr gtthanx inadvance waiting for your helpltbr gt( imrantufail2002yahoocom )
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05182014 at 1226 pmAnonymous
one more question can we use a car alternator of 24volts and 150amp instead of a solar panelltbr gtyes Iknow you question how to run that alternatorltbr gtthe answer is with a 2hp motor that run on ainverterltbr gt( I mean motor run on a inverter that has 5000watts capacity and that motor starts thealternator and gives the 27volts and 150amps to inverter ) is this possible plzzzzzz help me in
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05232014 at 1042 amnoor mughal
how can we design a 3kva solar system in 24 volts
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05282014 at 102 pmrabin shakya
dear sirltbr gt i want to one question of youi am from radio station our 75kva online ups and we are use15 tubler battery 150 amph we want to use solar systemso how many solar panel required to 6 to 7 hourback upnow our battery back is 3 hours
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05292014 at 732 amAnonymous
An excellent Effort and a great positive approach in sharing the whole methodology for Freeltbr gtltbrgtStay Blessed and well done
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05312014 at 718 pmAdnan
Dear sirltbr gtI have installed axpert 3kva 24v mks plus inverter 2 AGM 150Ah battries in series 4 solarpanel each 230 watt in 2strings means 22 panel in series and then both strings in parallel At this stageconnected load is 750 watt AC at day time and 400 watt at night ltbr gtUse of 3kva inverter to increase offuture loadltbr gtI jst wana cnfirm thatltbr gt1 my installation of
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06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
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Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
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copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
06072014 at 1134 amRohit Jaiswal
sir i have 800va inverter with 12v 150ah battery i need to use solar panels can u tell me how much solarpanels watts required for charging the battery and give load how much amp i should take the solarcontroller
Reply
06202014 at 148 pmAnonymous
Hello Sir firstly I would like to thank you for your explanationthey are clear and very helpful I just havesome questions 1 what is the discharge capacity of the batteries that you used in the example 2actually I have a project of using Solar panels for my company(our load is 3580 watts per one hour so icame out that I will need 33 panels of 300 watts each and 24 batteries (200Ah12v
Reply
08232014 at 350 pmQasim Ali
Sir Please kindly tell me if I connected two batteries (each of 175Ah) in series then who i find thechairgingtime of batteries in series (24V) and requried back up time for batteries
Reply
08252014 at 618 amJay
Hello Sir i have solar power generator the main battery is 100ah while the backup or the other batteryconnected is 150ah is it okey to have different amperes of battery connected thanks
Reply
09042014 at 801 amanup
Dear Mr Khan
Have a very nice day ahead
We are looking for solar inverter which will most be used on day time so we kindly request you that didyou supply us the day time inverter ( without battery ) from 35 Kva ndash 5 Kva
Reply
10272014 at 614 pmGSRaju
i can supply for your requirement of wattsi can do installation also for you
Reply
10132014 at 722 amFiroz Khan
Assalam alaikum
Can we use 24v solar panel in place of 12v panel for charging 12 v battery
if yes can we reduce 50 panel because they 24v panel
Reply
Leave a Reply
Your email address will not be published Required fields are marked
Name
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
Follow us on Google+
Join Our Other Social Networks
Electrical Technhellip
+ 1981
Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
Notify me of follow-up comments by email
Notify me of new posts by email
Post Comment
Recent Posts
Air Circuit Breaker (ACB)Construction OperationTypes and Uses11152014
Fuse and Types of Fuses11072014
Types of Switches11062014
ELCB RCB and RCD CircuitBreakers11052014
Arduino ProgrammingWhat is Arduino and Howto Program it11032014
Recent Comments
Dedenkoe Mohamadu This isvery educative
haregot hi thanks for help meso now i ask you samequestions what a
krishanu ray Dear sir PleaseShare some note on vfdapplication with pr
supreeth how can we run otherdevices such as radios etc insuch a si
moe There are little mismatchbetween components in imageand de
Follow us on Google+
Join Our Other Social Networks
Electrical Technhellip
+ 1981
Follow +1
copy Copyright 2013 All Rights Reserved 2012-2014 by Electrical Technology
