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Energy Efficiency &

ESCO Services

SUJAY KUMAR SAHA

Head of Group – Demand Side Management

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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

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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

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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.

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Khosla Medical Institute & Research Society

SAVINGS ACHIEVEDSavings in monetary terms -INR 4.5 Lakh in 6 Months

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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)

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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

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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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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.

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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

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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 – sujayk.saha@tatapower-ddl.com

Ajay Kumar Kaundal; Mob – 9971392962; email - ajay.Kaundal@tatapower-ddl.com

Sandeep Sharma; Mob – 9810315951; email – sa.sharma@tatapower-ddl.com

Aarti Gulati; Mob – 9910177698; email – Aarti.Gulati@tatapower-ddl.com