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Rooftop solar system at chinnaswamy stadium

Rooftop solar system at Chinnaswamy stadium

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• Operations in Germany and in over 130 countries around the world

• Around 17″,000 employees

• Operates in India since 60 years, currently 300 staff members in

India

• GIZ Solar team to support the capacity building programmes for

enabling the 40 GW Rooftop sector

Implemented by

Page 312/06/2017

GIZ PV projects in India

2013 2014 2015 2016 2017 2018 2019 2020 …

BMZ

ComSolar (13.8 Mio €)

• Solar pilot projects

• Solar guidelines

IGEN PVRT (3 Mio. €)

• Capacity building with NISE

• policy recommendations

IGEN GEC (7 Mio. €)

• RE grid integration (transmission)

• Forecasting & dispatching

I-RE (2 Mio. €)

• Grid integration of PV rooftop (distribution)

• Long term energy scenarios

BMUB

IGSP-PVRT (5 Mio. €)

• Support to discoms

• Support to cities

• Innovative business models

• Awareness & Scaling

PVRT+ (1.5 Mio. €)

• Capacity Building

KSCA-GIZ Partnership

Mr. Mukherjee

visited Solar

Stadium in Freiburg

KSCA signed

AOC with GIZ

KSCA signed

MOU with GIZ

Structural

feasibility by

Lahmeyer

Economic

feasibility study

by ComSolar/GIZ

Apr’12 Jan’13 Feb’13 May’13 Aug’13

First thought

Signing AOC with

GIZ

Signing of MOU

Structural

Other essay:   Automated face recognition system with image processing

feasibility

Economic

feasibility

Implemented by

Implemented by

Results from the structural feasibility

• Roof of East stand is made up of metal sheets can

be readily utilized for PV plant with minor

modifications

• Roof of West stand is made up of Asbestos and

needs to be replaced with metal sheets before

implementing solar

• Technically up to 1.3 MWp combined capacity

structurally feasible utilizing both roofs

 Project technical feasible

Electricity situation at Chinnaswamy stadium

• Annual electricity bill: INR 1.1-1.2 Crore

• Annual electricity consumption: 16-17 lakh units (kWh)

• Tariff Category: Commercial – HT2b

• Electricity rate: (increasing @ 4.5% every year) 6.95 INR/kWh

Implemented by

5.60

6.00

6.50 6.70

6.95

2009 10 11 12 13

Increasing BESCOM Tariff (INR/kWh) (HT2b Category)

Source: Tariff Orders for BESCOM

Business Models

• KSCA will invest in the PV plant and consume internally

the electricity

• Benefit will be the savings on electricity from the Grid

1. Invest, Own, Operate &

Consume

• KSCA will invest in the PV plant and sell the electricity to

BESCOM

• Benefit will be revenue from sale of electricity

2. Invest, Own, Operate &

Sell

• KSCA will purchase electricity from a third party, who will

invest, own and operate the PV plant on stadium roof

• Benefit will be hedging the electricity cost

3. RESCO (PPA) model

Implemented by

1. INVEST, OWN, OPERATE & CONSUME

Model 1

KSCA as investor consuming

electricity internally

EPC CompanyBenefit

Investment

PV plant

Savings on

electricity bill

Capital subsidy

Implemented by

EPC – Engineering, Procurement and Construction

1″,000

2″,000

3″,000

4″,000

5″,000

6″,000

7″,000

Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Nov-12 Dec-12 Jan-13 Feb-13 Mar-13 Apr-13 May-13

k

W

h

/d

a

y

Average daily electricity demand vs solar energy generation

Electrical load (10PM to 6AM)

Electrical load (6PM to 10 PM)

Electrical load (6AM to 6PM)

Solar generation (Daytime)

100% PV electricity can be consumed internally

PV plant size: 400 kWp

Implemented by

26.5

8.0

10.6

5

10

15

20

25

30

2

9

1

1

1

1

2

1

3

1

4

1

5

1

6

1

7

1

8

1

9

2

2

1

2

2

2

3

2

4

2

5

2

6

2

7

2

8

2

9

3

3

1

3

2

3

3

3

4

3

5

3

6

3

7

3

8

3

9

IN

R

/k

W

h

Electricity tariff (BESCOM) vs levelised cost of solar

Through this model, KSCA can make huge savings

With subsidy

Without subsidy

Implemented by

1.68 1.68

2.34

3.34

1.80

2.58

0.22

0.22

1.96

2.80

2.00

4.00

6.00

8.00

10.00

12.00

With Subsidy Without subsidy

IN

R

/k

W

h

PU O&M Expenses PU Depreciation

PU Interest on term loan PU Interest on working Capital

PU Return on Equity

Breakup of Levelised Cost of Electricity (BM1)

Implemented by

Financial implications

Assumptions

Capital cost INR 3.6 Cr

Debt: Equity Ratio 70:30

Debt Tenure 10 years

Interest on loan 12.5%

CUF 17%

O&M cost INR7.2

lakh/annum

Project lifetime 25 years

Depreciation (10 yrs) 7.0%

Depreciation (15 yrs) 1.33%

Results (With Subsidy)

Equity IRR 13.5%

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Project IRR 16.5%

LCOE INR 8/kWh

Payback 6 years

Results (Without Subsidy)

Equity IRR 11.5%

Project IRR 12%

LCOE INR 10.61/kWh

Payback 8.5 years

Implemented by

-600

-400

-200

200

400

600

800

1000

1200

1400

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

IN

R

L

a

k

h

s

Cumulative cash flows

Implemented by

2. INVEST, OWN, OPERATE & SELL

Implemented by

Model 2

KSCA as investor selling

electricity to Grid

EPC CompanyBenefit

Investment

PV plant

Capital subsidy

Tariff

set by

KERC

Implemented by

Karnataka Electricity Regulatory Commission tariff order

Type of solar plant Approved Tariff

(INR/kWh)

Rooftop and small solar PV power plants 9.56

Rooftop and small solar PV power plants with 30%

capital subsidy

7.20

• Applicable till March 2015

• KERC assumptions

• Capital cost – INR 9cr/MW (400 kW – 3.6 cr)

• Return on Equity (ROE) – 16% post tax

Implemented by

Financial implications

Assumptions

Capital cost INR 3.6 Cr

Debt: Equity Ratio 70:30

Debt Tenure 10 years

Interest on loan 12.5%

CUF 17%

O&M cost INR7.2

lakh/annum

Project lifetime 25 years

Depreciation (10 yrs) 7.0%

Depreciation (15 yrs) 1.33%

Results (With Subsidy)

Equity IRR 10.2%

Project IRR 11%

Tariff INR 7.20/kWh

Payback 7.5 yrs

Results (Without Subsidy)

Equity IRR 11%

Project IRR 12%

Tariff INR 9.56/kWh

Payback 7.5 years

Implemented by

-600

-400

-200

200

400

600

800

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

IN

R

L

a

k

h

s

Cumulative Cash Flows

Implemented by

3. RESCO MODEL

Model 3

Third party as investor selling

electricity to KSCA

Third party

investor

EPC Company

Power purchase

agreement (PPA)

Electricity

from PV

plant

Capital subsidy

Investment

PV plant

Benefit

Hedging

electricity price

Implemented by

GIZ – recommendation business model 1

Parameters 1. Invest, Own, Operate

and Consume

2. Invest, Own, Operate

and sell

3. RESCO

Revenue/

Savings

@6.95 increasing every

year by 4.5%

@7.20 fixed for 25 years Depends on developers

Investment Same Nil

Economic

Attractiveness

High Low Depends on offers from

RESCO

Pros • Revenue/Savings

independent of third party

• Demand Supply matching

not an issue

• Entire 1.3 MW can be

installed under this BM

• No hassle with EPC/Govt

Approvals/DISCOM

• Zero investment and low

electricity tariff is a bonus

Cons • EPC Contracting

• Operation of PV plant

• Same as BM 1 +

Revenue is regulation

bound

• Financial health of

DISCOM remains a

concern

• Lack of companies

offering RESCO

• Contractual engagement

with RESCO

Implemented by

Business Models (Net Metering / Self Consumption)

• Stadium will invest in the PV plant and consume

internally the electricity

• Benefit will be the savings on electricity from the Grid

1. Invest, Own, Operate &

Consume

• Stadium will purchase electricity from a third party, who

Other essay:   Efficient ballot casting in ranked based voting system

will invest, own and operate the PV plant on stadium

roof

• Benefit will be hedging the electricity cost

2. RESCO (PPA) model

Implemented by

1. INVEST, OWN, OPERATE & CONSUME

For Stadiums  Conventional electricity is already

expensive than electricity from solar

Implemented by

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

IN

R

/k

W

h

Electricity Tariff (Discom) vs levelised cost of Solar

Levelised solar tariff

~ 18

~ 5

*Escalation in tariff from Discom considered – 3% per annum, base tariff – 8.9 Rs/kWh

Breakup of Levelised Cost of Electricity from Solar*

Implemented by

35%

39%

25%

1%

PU O&M Expenses

PU Depreciation

PU Interest on term loan

PU Interest on working

Capital

*ROE is not considered for self consumption

Financial implications (per MW basis)

Assumptions

Capital cost INR 5 Cr

Debt: Equity Ratio 70:30

Debt Tenure 10 years

Interest on loan 11%

CUF 17%

O&M cost INR15

lakh/annum

Project lifetime 25 years

Depreciation (10 yrs) 7.0%

Depreciation (15 yrs) 1.33%

Financial Results*

Equity IRR 31.1%

Project IRR 21.1%

LCOE INR 5.11/kWh

Payback 5 years

Implemented by

*Without considering any ROE

Grid Tariff assumptions*

Tariff INR 8.90/kWh

Escalation 3%

Cumulative cash flows of a 1 MW rooftop solar power

plant on a stadium

Implemented by

Payback as early as 4-5 years

 more than 20 years of free electricity

-1000

-500

500

1000

1500

2000

2500

3000

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

IN

R

L

a

k

h

s

2. RESCO MODEL

20.00

40.00

60.00

80.00

100.00

120.00

140.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

IN

R

L

a

k

h

s

Case 1 Case 2

Financial implications (per MW basis)

Assumptions

Tariff offered by RESCO

Case 1

Case 2

INR 6/kWh

INR 7/kWh

Grid Tariff INR 8.9/kWh

Escalation in grid tariff 3%

Implemented by

Financial results

NPV (Case 1) INR 354 Lakh

NPV (Case 2) INR 466 Lakh

Zero investment

 Savings from first year itself

Disclaimer

This presentation was prepared by GIZ (German Development cooperation

/ Deutsche Gesellschaft fuer international Zusammenarbeit GmbH)”,

specifically by experts of the ComSolar project team based in New Delhi”,

India based on best knowledge. Notwithstanding of detailed and diligent

analysis no warranties for the results can be given. GIZ is giving this

presentation and results, info and recommendations included without

guarantees. No responsibility is taken for the correctness of this

information.

Implemented by

Thank you!

joerg.gaebler@giz.de, sandeep.goel@giz.de

Indo German Energy Programme

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH

B 5/2, 1st Floor, Safdarjung Enclave, New Delhi 110 029

Implemented by

mailto:hemant.bhatnagar@giz.de

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