SolarEdge - Segencatalogue.segen.co.uk/reseller/docs/CommercialTrainingSolarEdgeMAR… · Top-ranking inverter supplier ... Bankable in major European and North American solar financing

©2014 SolarEdge

SolarEdgeCommercialOffering

February 2015

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Meet SolarEdge

Established the DC power optimiser segment and leads it with amore than 70% market shareTop-ranking inverter supplier~360 employees, 11 global officesPresence in more than 70 countriesMore than 4,500,000 power optimisers and 200,000 invertersshippedGlobal deployment and 24/7 worldwide support

1 MW, Germany 700 kW, Turkey 2 MW, Lithuania 2.5 MW, Italy

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Bankability

200% annual growth rate

Strategic partnerships throughout the PV value-chain

Leading financial backers, such as Norwest Venture Partners,Walden International and GE Energy Financial Services

Bankable in major European and North American solar financinginstitutes and banks

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SolarEdge System Overview

Inverter

Monitoring Portal

Poweroptimizer

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Why SolarEdge?

Improved bottom line More energy More modules Reduce BoS cost Reduce O&M costProtect your investment Higher system up-time Expect the unexpected Safety

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Improved Bottom LineMore Energy

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Module Mismatch

Each module in a PV system requires different current andvoltage to operate at Maximum Power Point (MPP)Modules with different MPP -> module mismatch

SolarEdge Monitoring Portal: Lighter shades of blue signifies stronger power output

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Traditional InverterMPPT per entire stringAll modules receive the same current,regardless of their individual MPP

SolarEdge SolutionMPPT per moduleCurrent & voltage adjusted permodule

SolarEdge Vs. Traditional Inverters

MPPT = Maximum Power Point Tracking

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Thermal Mismatch

IR-camera reveals:Temperature decreases by 13°C from top tobottom row of modules in this PV plant = 5.6%Pmpp mismatch

(∆Pmpp=13°C * 0.43 [%/°C])

Module Mismatch

Tolerance Mismatch

Thermal Mismatch

Power MismatchFrom the manufacturing plant,the warranted output powerrange of modules may varygreatly. A standard deviation of+/-3% is sufficient to result in~2% energy loss.

Wind and shading betweenmodules in a large system cancause significant temperaturevariances.

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Module Mismatch

Soiling and Partial ShadingModule soiling, from dirt, birddroppings, or snow, contributesto mismatch between modulesand strings

While there may be noobstructions during site design,during a system’s lifetime, a treemay grow or a man-madestructure may be erected thatcreates uneven shading.

Soiling Mismatch

Partial Shading


Module Mismatch

Uneven AgingMost modules age to an acceptable degree of <80% of their nameplate outputBut the different rate at which they age introduces aging mismatch

Black lines: Power variance of identicalmodules after 20 years (The figuresummarizes only the results of the better-performing module series)Source: A. Skoczek et. al., “The results of performancemeasurements of field-aged c-Si photovoltaic modules”,Prog. Photovolt: Res. Appl. 2009; 17:227–240

Uneven module ageing


Module Mismatch

Best module

Worst module

Batch

Average

Uneven Aging


Added Energy – In All Scenarios

PHOTON Magazine proves: SolarEdgeincreased energy output by 2% - 30% PHOTON Labs tested and compared the

added energy of power optimisers to atraditional inverter (10/2011 issue)

101.7% 101.2%

130.6%

109.7%104.7%

Traditional inverter SolarEdge

100%

Comparison of yield produced by traditional inverterand SolarEdge systemLaboratory conditions, flash tested modules, homogenous irradiance


Case Study – 3 Years Outperformance

Birds Hill Nursing Home, 32kW, Poole, Dorset

Installation Date:October 2011

Inverter:3 X SolarEdge SE10kW

Power Optimizers:136 X SolarEdge OP250

Modules:136 X 235W MAGEPowertech Plus

Installed by:Empower Energy


8% Average Over-Performance

“For years we have recommended SolarEdge technologyto system owners to help increase their energy production.For three years, this system has over-performed the estimatedyield by 8%, proving the benefit that SolarEdge offers.”Malcolm Davidge, Technical Director, Empower Energy

Until Jan/2015 - £36,000 in FIT payments + £10,000 of savings inelectricity bills

*

* As calculated with PV Sol for year 1


Improved Bottom LineMore Modules


More Modules By Design

Power optimisers enable installation of: Modules in partially shaded areas Strings of uneven lengths Strings in multiple orientations and different roof facets

More modules on the roof

More power & Revenue Traditional inverter: 149.5 kW DC SolarEdge: 200 kW DCIncrease 34%


More Modules By Limitation

Very cost effective Feed-in Limitation deviceWorks for any size systemFail-safe in case of damaged communication cablesFast operationRetro-fit current clamps (split-core)

Example: 30kWsystem with21kW export limit


Improved Bottom LineReduced BoS Cost


SolarEdge Fixed String Voltage

String voltage is always fixed,regardless of temperatureand of string length

Constraint-free design Longer strings

Reduces wiring & BoS components

Flexible design formaximum roof utilization:

Parallel strings of unequal lengthsModules on multiple roof facetsModules with different power ratings

String voltage is always optimal for DC/AC conversion


Simpler System Design

Typical String Inverter SolarEdge

Limited string length 26-60 modules per string (up to 11.25kW)

Must match string lengths per MPP tracker Uneven strings can work in parallel

Shaded modules affect the entire string Only shaded modules are effected

Cannot mix different types of modules Any module size or type can be used

Locked in to same orientation/tilt per MPPtracker Any orientation/tilt


The diagram below shows a 40kWp block with a typical string designfor SolarEdge and SMASolarEdge fixed string voltage allows for longer string, reducing theamount of DC cablingSolarEdge uses 78% less string cabling than SMA in this system(2.3m/kW DC Vs. 10.4m/kW DC)

DC Cabling BoS

Included DC cablesAdditional DC cables

SMA: 20 module strings

SolarEdge: 40 module strings416m per 40kW DC

92m per 40kW DC


Case Study - Maximum Design Flexibility

String length can be 45/46 modules (compared to 21 with stringinverter), and stretch over 2/3 roof facets The whole system can be installed with 3 strings only –

one per inverter Significant BoS cost reduction


Improved Bottom LineReduce O&M Cost


Module-level Monitoring

Module-level monitoring and remote troubleshooting enableO&M team to identify faults quickly and effectivelyFull visibility of system performance & remote troubleshooting Monitoring at the module level Fault detection pinpointed on a virtual site map Automatic alerts on system issues Easy access via web browser from computer or mobile deviceBuild in communication hardware


Cost Saving Maintenance


Cost Saving Maintenance

Module-level performance monitoring & remote maintenancelead to Less trips to site & decreased time spent on site Higher system uptimeFree module-level monitoring for system life timeComplete system status on your mobile (iPhone or Android)


Example: PID Detection

Potential induced degradation is a physical phenomenareducing the modules power by reducing its fill factor and itsoutput voltageThe PID Effect is the strongest on modules closest to theinverter’s negative poleIf PID is suspected, technicians are required to climb on theroof, disconnect the modules, and measure their output voltage

PV- PV+

EL image of a floating PID string with degraded panels on the side with negative potential (S. Pingel, O. Frank, M.Winkler, S. Daryan, T. Geipel, H. Hoehne and J. Berghold SOLON SE, Am Studio 16, 12489 Berlin, Germany)


Remote PID Detection

Using SolarEdge monitoring portal, PID problems can bedetected in “two clicks”Looking at the string modules power, degradation of power inthe last modules is shown (closest to the negative pole)


Defective Bypass Diode

Module voltages

Good modules,with full voltage

Underperformingmodule, with reduced

voltage

Bypass diodeoperating/failing


Future Compatibility & WarrantyLow-cost inverter replacement out of warranty 40% less than traditional invertersAvoid expensive stock of module inventory by eliminating theneed to store spare stock SolarEdge flexible design allows modules of different power classes

and brands in the same string New power optimizers can be utilized in the same string with older

models25-year power optimizer warranty, 12-year inverter warranty,free monitoring for 25 years

600W-700W power optimizersCommercial inverters15kW, 16kW , 17kW

P-5 SeriesP-2 Series


Protect your Investment


Expect the Unexpected

Future tolerance changes Module level MPPT (mitigate mismatch losses) Aging mismatch Unpredictable environmental and obstruction changes (e.g. antenna erected) Defective modules

Higher system uptime The monitoring and alerts enable fast technician response when necessary


Safe Installation and Maintenance

Remote monitoring instead of diagnostics work at dangerousheightsNo high VDC during installation or maintenance - Poweroptimisers and DC cables automatically shut down wheninverter is off or disconnected


Protecting System Owner Assets

Providing the highest safety for installers, electricians, and firefighters

Automatic module DC shutdown when inverter is not operating

Electric arcs are automatically detected and prevented bymodule shutdown

Better suited for future insurance requirements


Firefighter Gateway

Safety Remote controls the built-in SafeDC™ mechanismEnables system DC shutdown by pressing an emergency stop button orreceiving an alarm from Fire Alarm Control PanelReal time indication of system DC voltage for safety assuranceRemote indication of PV system status

Fire AlarmControlPanel

EmergencyStop Button

RS485 RS485 RS485

FirefighterGateway

RS485


SolarEdge as Your Partner

Pre Sale

On-going Service

Monitoring Module level

performance data Remote troubleshooting

Support Local expert teams Online Service Portal Call centers

Maintenance On-site repair Preventive remote

monitoring

Design System design

consulting

Valuation LCOE

calculation

Training Technical installation

& maintenance training


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SolarEdge - Segencatalogue.segen.co.uk/reseller/docs/CommercialTrainingSolarEdgeMAR… · Top-ranking inverter supplier ... Bankable in major European and North American solar financing