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1
Energy Efficiency &
ESCO Services
SUJAY KUMAR SAHA
Head of Group – Demand Side Management
2
Parameter Unit July ‘02 March‘17 % change
OPERATIONAL PERFORMANCEAT&C Losses % 53.1 8.59 85%System Reliability – ASAI -Availability Index % 70 99.51 41%Transformer Failure Rate % 11 0.84 90%Peak Load MW 930 1791 85%Length of Network Ckt. Km 6750 15378 128%Street Light Functionality % 40 99.41 150%
CONSUMER RELATED PERFORMANCENew Connection Energization Time Days 51.8 5 90%Meter Replacement Time Days 25 5 80%Provisional Billing % 15 0.86 94%Defective Bills % 6 0.13 98%Bill Complaint Resolution Days 45 4 91%Mean Time to Repair Faults Hours 11 1.50 87%Call Center Performance - Service Level % - 95Payment Collection Avenues Nos. 20 6725 33525%Consumer Satisfaction Index % - 90
OTHERSCapex (Cumm) Rs. Crs 1210 6393 428%Consumers Count 7 Lacs 15.8 Lacs 126%Employees Count 5600 3537 37%
One of the Most Successful Private Power Distribution Utility
License Area: North and North West Delhi (510 sq. km)
License Period : 25 years
About Tata Power-DDL
Certifications : ISO 9001, 14001, 27001, 22301, 31000 ; SA 8000 ; OHSAS 18001UN Global Compact Reporting
3
Demand Response
Demand Management
Energy Efficiency
Conservation
Demand Side Management Demand Side Management (DSM) is the implementation of those measures thathelp the consumers to use electricity more efficiently and in doing so reduce theutility costs. This, in turn, will help the electricity consumers to cut costs.
Reduction or shift in energy use during criticalperiods for short duration delivered immediately
Saving energy by taking anaction that often becomes a habit
Permanent reduction in energy usedriven mainly by equipment upgrades
Customer Awareness of peak power (KW)demand
Need for DSM and its benefitsN
EED
FO
R D
SM
• Flattened load curve helps DISCOMs optimize power procurements costs (reduction of surplus power)
• Reduce overall costs of energy systems – helps to meet people’s energy needs at a lower cost
• Preserve the environment
BEN
EFIT
S O
F D
SM
• Peak Load reduction• Reduce Cross Subsidy, thus
reduction of regulatory overhang
• T&D Loss reduction by reduction load on network and pfimprovement
• Reduce power shortages and power cuts.
• Reduction of harmonics in system, enhancing life of electrical assets
• Improve the reliability and quality of power supply
• Capital deferment by optimizing load
PwCJanuary 2016
12
0
200
400
600
800
1000
1200
1400
1600
1800
0% 3% 6% 9% 12%
15%
18%
21%
24%
27%
30%
33%
36%
39%
42%
45%
48%
52%
55%
58%
61%
64%
67%
70%
73%
76%
79%
82%
85%
88%
91%
94%
97%
Load Duration Curve of TPDDL
Load Duration
0.00
200.00
400.00
600.00
800.00
1000.00
1200.00
1400.00
1600.00
Hrs
MW
Demand wise duration of TPDDL
TPDDL’s load is above 1600 MW foronly 16.5 hours
Similarly, TPDDL’s minimum drawlexperienced was 323.82 MW withload staying below the 500 MW for268.25 hours
TPDDL SYSTEM LOAD PROFILE
Drawl Limit Time Slots Total HoursAbove 1700 2 0.501600 – 1700 64 16.001500 – 1600 350 87.50
400 – 500 1012 253.00Below 400 61 15.25
6ESCO Service
Key Milestone Achieved :• Empanelled by BEE as Grade 1 ESCO Rating• Re-Empanelled six ESCO agencies for the Year 17-18• Discovery of competitive energy audit price (range of Rs. 4000/ to Rs. 50,000/) as per load
and customer segmentation wise• Collaborative partnership with ESCO project implementing agencies and technology solution
providers (like Honeywell, Katyani, Smart Joules)
Particulars FY 17 (Actual )
FY 18(Actual)
Cumulative
Energy Audit conducted (MW)
19 MW 52.5 MW 71.5
ESCO Implementation (MW)
2 MW 6.58 MW 8.58
Objective:-To identify potential energy saving through audit and get benefit from guaranteed energy saving solutions & allied activities through implementation of energy performance improvement projects
KPI UoM FY 18 FY 19 FY 20 FY 21 FY 22 Total (5 Yrs)
Energy Audit Services MW 50 70 100 150 200 570ESCO Implementation MW 20 30 40 50 50 190
USP:• Investment Grade Energy Audit• Partnership with OEM and Technology solution providers• Performance guarantee from ESCO agency as per baseline• Financing Model
Filtering and prioritizing - Energy Conservation Measures
Priority
Payback – Between 6 – 36 months
Payback – Less than 6 months
Payback – more than 36 months
High
Low
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RESPONSIBILITY MATRIX
ESCO ACTIVITIES
Carry out detailed Energy Audit and
provide recommendations w.r.t Cost-benefit
analysis and payback period
Project implementation
plan for EE measures within
defined timeframe
Execution of project as per contract with
consumer
Monitoring and Verification (M&V) of energy savings
Complying with performance
guarantee against annual energy
savings or revenue sharing guarantee
as per contract with the customers
Benefits of ESCO
Improved productivity
Improved machine efficiency
Savings in electricity bill
CUSTOMER BENEFITS
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BENEFITS TO TPDDL & SOCIETY
To optimizeTPDDL peak loadconsumption,thus reduction ofpower purchasecost
Reducedconsumption willlead to reducedgreenhouse gases& carbonfootprint
ESCO Customer
TPDDL
ESCO Customer
TPDDL
Financial Options
ESCO Service Savings in Hospital Utility through implementation of ESCO projects outside TPDDL Licensed Area
CMC Ludhiana Hospital: 4 MW load; 22% energy saving in 9 months
ESCO Service Savings in Hospital Utility through implementation of ESCO projects in TPDDL Area
St. Stephen’s Hospital: 2.03 MW load; 20% energy saving in 12 months
Actual
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M/s B.G.ShirkeINDUSTRY TYPE - CONSTRUCTION/FABRICATING UNIT
The energy saving measuresimplemented at M/S B.G. Shirkefocused on Automatic HarmonicProtection and Motor OptimizingSolutions.
Project Implemented in the month April 2017
SAVINGS ACHIEVEDSavings of 10.34 lakh units in 6 monthsInvestment of Rs 11.9 lakhs with payback in 6 months
5.5 % 5.4 % 5.3 %4.9 % 4.3 %
4.2 %
0
50000
100000
150000
200000
250000
300000
350000
400000
450000
May-17 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17
Ener
gy (
Kvah
)
Month
Monthly Savings
Baseline kVAh Actual KVAH
14
Khosla Medical Institute & Research Society
Lighting5%
Cooling51%
Utilities36%
Miscellaneous8%
Lighting Cooling Utilities Miscellaneous
INDUSTRY TYPE - HOSPITAL
LOAD PROFILE
The energy saving measures implemented at KhoslaMedical Institute & Research Society focused on highenergy consuming cooling equipment since they formthe maximum load of the total consumption.
15
Khosla Medical Institute & Research Society
SAVINGS ACHIEVEDSavings in monetary terms -INR 4.5 Lakh in 6 Months
16
Load Optimized Solution
rkVA
kW
Partial Load condition without electrical load and PF control at Machine level:
• Active Load: - kW• Reactive Load: - rkVA• Apparent Load: - kVA (billed)
17
Load Optimized Solution
rkVA
New kW
Partial Load condition with electrical load and PF control at Machine level:
• Active Load: - kW• Reactive Load: - rkVA• Apparent Load: - kVA (billed)
ESCO Use Case Calculation.xlsx
18
Loss ReductionEnergy Efficiency Use Case Calculator
Sl No Items1 Billed Max Demand (kVA) 1002 Billed PF 0.93 Actual Max Load (kW) 904 Improved PF 0.9995 Improved Billed Demand (kVA) 90.09
% of savings 9.9Normal Electrical Network Distribution loss in industry 5%
Overall energy efficiency of Industry = 50% = 0.83 (17% T&D Loss) x 0.95 (95% Transformer efficiency) x 0.9 (90% motor efficiency) x 0.7 (30% loss in mechanical system like coupling/driver train/pump/valve)
Capacitor Capacity kVAr requirement = kW[tanФ1 - tan Ф2] = kW[tan{cos-1 (cosФ1)} – tan{cos-1 (cosФ2)}]
Reactive kVAr produced in case of lower voltage will be ratio of V12 / V2
2 (where V1 = actual voltage & V2 = rated voltage)
Capacitor consumes 0.2 to 6.0 Watt per kVAr
Reduction of Distribution Loss % in kWh due to PF improvement from pf1 to pf2 = [1 – (pf1 / pf2)2] x 100%
ESCO Based LED Street Light for North DMCNorth DMC Project Highlights
• Consortium partner - Havells
• Implementation and maintenance for seven years under ESCO model
• 1.14 lakh lights in package 1 at Narela and Rohini Zone
• TPDDL order Value – Rs. 77 Crore(around)
• 0.9 lakh lights in package 2
• TPDDL order Value – Rs 64 Crore (around)
• Ensure guaranteed energy saving of 64%
North DMC Project Status
• Package 1 inaugurated by Mayor North DMC on 17th October 2017, Implementation completed.
• Package 2 inaugurated on 2nd Nov 2017, Implementation is in progress
• Load reduction of 14 MW in TPDDL area
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20
Demand Side Management Achievement
S No DSM Program till dateScale (Nos)
Annual Energy Savings (MU)
Peak Load Reduction
(MW)
Annual CO2 reduction
(MT)1 LED Lights 2,110,000 61.7 15.7 21,678.3
2BEE 5 star Ceiling Fan with Crompton 55,000 5 0.7 1,498
3Non Star AC replacement Scheme 17,123 10.5 15.3 3,496.5Total 77.2 31.7 26,672.8
• Energy Savings: 67.4 MU• Load Reduction: 27.1 MW• CO2 Reduction: 22,277 MT
By saving unit through DSM initiativewould result avoiding cross subsidyof Rs 12.8 crores for domesticconsumers.
21
Awareness for DSM Programs
LED & AC Scheme stalls organized at 4 Bachpan
Gully Events
LED Camps organized at RWA meetings
AC Scheme Advertisement in Times of India, 5 May and
5 June 2017
Awareness via SMS
LED Camps organized at various locations Pusa, Badli
AWARENESS
S No. Particulars Numbers
1. Bachpan Gully Camp for AC & LED Scheme 4
2. RWA meetings 8
3. Newspaper Advertisements for AC Scheme 2
4. SMS sent for EESL LED Scheme 10,99,126
5. SMS sent for AC Scheme 9,28,651
Awards & Accolades – DSM22
Green grid award at “4th Innovation with Impact Awards for Discoms” by ICC
Asian Utility InnovatorsAward for “Demand SideManagement Project”
“DISCOM driven ESCO model for energyefficiency improvement in C&I categoryload” shortlisted under Energy SavingProduct / Service Award”.
“Innovative Financing and ESCO Model” award at“National Energy Efficiency Circle Competition 2017” by CII
CII National Award for Innovative Services
23
TPDDL Bouquet of Services
Detailed Load Research
Utility Load Profiling
Market Research
Consumer Survey
-Develop load profile for eachconsumer category-Capture end usage informationlike type of appliances, its qty.,time of usage, vintage etc.-Identify target consumercategory and target equipment-Potential Assessment in terms ofPeak Reduction and MU savingsCapacity Building for
Discom & Regulator
State DSM action Plan
State Level DSMRegulations; 5 year TargetSetting
Formulation of DSM Schemes
Development of EE programs for I&C
consumers
ESCO Services
Thank YouYou may contact us:
Sujay Kumar Saha; Mob – 9971488079; email – [email protected]
Ajay Kumar Kaundal; Mob – 9971392962; email - [email protected]
Sandeep Sharma; Mob – 9810315951; email – [email protected]
Aarti Gulati; Mob – 9910177698; email – [email protected]