Accelerating Large Scale Deployment of Rooftop SPV in India · Primary Survey and Market Research...
Transcript of Accelerating Large Scale Deployment of Rooftop SPV in India · Primary Survey and Market Research...
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Panel Discussion on
Accelerating Large Scale Deployment
of Rooftop SPV in India
December 23, 2013
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Context Setting
• Rooftop SPV can be a good solution for reducing demand-
supply gap and distribution losses.
• Huge potential for Rooftop SPV
• Various central and state government initiatives for
promoting Rooftop SPV
Still Rooftop SPV market has not developed in
India??
One of the possible solutions could be
commoditization
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About the Project
Evaluate market preparedness and policy status in
India, for commoditizing Rooftop SPV for different
consumer categories
• Primary survey and
market research
• Design and development
of business models
Work methodology:
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Primary Survey and Market Research
• Except Gandhinagar there is
power outage in other 5 cities
ranges between 1 to 2.5
hours per day
• Commercial and industrial
segments adopt generator set
as a power backup option
• Residential sector prefers
battery-inverter set as a
power backup option due to
less availability of small
capacity generator sets in the
market
Delhi
Chandigarh
Gandhinagar
Pune Bhubaneswar
Bangalore
Cities considered
for market research
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Barriers for Large Scale Deployment of
Rooftop SPV
• High upfront cost
• Lack of financing schemes by banks
• Lack of awareness
• Unavailability of standardized Rooftop SPV systems
• Inadequate supply chain for Rooftop SPV system
• State policies and guidelines for Rooftop SPV are
still evolving
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Need for Commoditization
• Availability
– Range of standardized products
• Accessibility
– Wider network of suppliers and service providers
• Affordability
– Easy financing
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Standardization of Rooftop SPV
System
PLOT SIZE
260 SQ. YARD
GROUND COVERAGE
55%
ROOF AREA
85%
AREA AVAILABLE FOR SOLAR PV
20%
2 kWp
End-use loads considered
for system sizing
Equipment Nos.
Tube light 5
CFL 5
Fan 4
Cooler 1
Refrigerator 1
TV 1
Washing machine 1
CD Player 1
Computer 1
Laptop charging 1
SPV system capacity 1.8 kWp
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SPV System Configurations & Metering
Arrangements
Gross Metering
It is a simple and cost effective Rooftop Solar PV system
which doesn’t affect household grid connection and wiring.
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SPV System Configurations & Metering
Arrangements
Net Metering Net Metering with Backup
• Suitable for sites with reliable grid
power
• It doesn’t provide backup power
during power outage
It provides backup power during power
outage
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System Configuration & Metering
Arrangements Parameters Gross Metering Net Metering Net Metering with
Storage
Purpose Sale of electricity to
utility
Consumption at the
consumer’s end
Consumption at the
consumer’s end and
also a backup source
during power outage
Preferred
consumer category
Commercial &
Industrial
Residential,
Commercial & Industrial
Residential
Tariff plan PPA, FiT Energy settlement, FiT Energy settlement, FiT
Energy accounting Two separate meters A bidirectional meter A bidirectional meter
End-user
advantages
Return on
investment
Hedging for grid
electricity cost
increases
Reliable power and
hedging for grid
electricity cost increases
Utility’s
perspective
Reduced distribution
loss
• Reduced distribution
loss
• Uncertain revenue
scenario in long term
• Reduced distribution
loss
• Uncertain revenue
scenario in long term
Operating cost Low Low High
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Financing Options
Rooftop Solar PV System
Self Owned Third Party
Owned
100% Equity Debt & Equity Debt & Equity 100% Equity
Self • Bank
• Govt.
financing
Self • Bank
• Govt.
financing
Pro
ject
Ow
ners
hip
F
inan
cin
g
Op
tio
ns
Mo
des o
f
Fu
nd
ing
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Business Models
Gross Metering – Self Owned
Risk for System Owner
• Revenue recovery
from utility
• Grid availability
• System warrantee/
Insurance
• O&M
System
Owner
Bank
Utility
Installer
Consumption Payment
Generation Revenue
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Business Models
Gross Metering – Third Party Owned
Risks for Third Party
• Revenue recovery from
utility
• Grid availability
• System performance and
O&M
• Long term access to roof
Roof
Owner
Bank
Utility
Third Party
Repayment Loan
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Business Models
Net Metering – Self Owned
• Risk Ownership
– System Owner
– Long Term Risk for
Utility
System
Owner
Bank
Utility
Installer
Consumption payment
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Business Models
Net Metering – Third Party Owned
• Risk Ownership
– Third Party
– Long Term Risk for
Utility
Roof
Owner
Bank
Utility
Third Party
Repayment Loan
Consumption payment
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Discussion Points
• Should there be an upper cap on system size?
• Is there any need for certification of Rooftop SPV
systems
– Who will certify
• What should be financial mode for Rooftop SPV
– Interest subsidy or capital subsidy or FiT
– Should existing inverter owners be incentivized for
choosing solar PV systems.
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Thank You