Webinar on Gross Metering Framework for Solar...
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Webinar on Gross Metering Framework for Solar Rooftops Mr. Akhilesh Magal Lead Solar Advisor, GERMI 18 th March 2016
Transcript of Webinar on Gross Metering Framework for Solar...
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Webinar on Gross Metering Framework for Solar Rooftops
Mr. Akhilesh Magal Lead Solar Advisor, GERMI
18th March 2016
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What is Gross Metering?
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A typical metered home. Gross-metered system.
Net-metered system. Net-metered system (hybrid).
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Why Gross Metering?
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Gross-metered system
• Separation of generation and consumption
• This is useful where the owner of the rooftop solar system and the building tenant are different
• Also used in Third Party Owned Solar Systems where the roof owner cannot afford the upfront capital cost.
• Very few states in India encourage Gross Metering and prefer to go via the net-metering route.
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Utility views on Gross Metering
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Parameter Gross Metering Net Metering
Energy Demand No reduction in energy demand since generation and consumption are separate
Reduction in energy demand of building
Feed-in-Tariff Feed-in Tariff applicable on entire generation
Feed-in Tariff applicable only on excess energy pushed into the grid
R.P.O. Expensive method of meeting R.P.O.
Cheaper method of meeting R.P.O.
Relationship Management Utility might need to sign a power purchase agreement with a new entity (investor)
Utility has to extend net-metering to existing consumer
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Gandhinagar Photovoltaic Rooftop Programme
The Gandhinagar Photovoltaic Rooftop Programme (the “Programme”) marks the first distributed power generation programme in India in its true sense.
True Public Private Partnership, brings together…
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o Government o Developers o Regulators
o Home owners o Utility o R&D
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Aim of Programme
Gandhinagar Photovoltaic Rooftop Programme aims for…
o net 5 megawatt of photovoltaic installations…
o in distributed kilowatt-sized photovoltaic systems…
o through a PPP mode…
o to promote clean energy and energy security...
o as a part of the Gandhinagar Solar City Initiative.
Greater outcome of this pilot Programme:
o Establish a practice/ philosophy of distributed solar and other energy generation.
o Bring a level of comfort to all stakeholders for further scale-up.
o Encourage public participation.
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5 MW Gandhinagar Rooftop Solar Programme
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Rooftop Solar Project
Developer
DisCom (Torrent Power)
GPCL (Govt. Agency)
for Viability Gap Funding
Rooftop/ Terrace Owner
Power Purchase Agreement (PPA)
Tariff determined by Regulator
Rooftop Lease Agreement
@ Rs. 3/- per kWh
Project Implementation
Agreement (PIA)
Quoted Tariff
Regulator’s Tariff VGF
Realized Tariff Rent
The Math!
11.21
8.21 3.00
0.07 11.14
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Green Incentive: Aid to Roof-owners
‘Green Incentive’ is the minimum generation-based incentive for participating Roof-owners specified by GoG.
Advantages: o Encourage awareness and participation among roof-owners. o Will be correlated to home-owner’s electricity bill. o Should not be compared to ‘constant’ (or ‘dead’) lease rental.
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Plot Size (Sq. m.)
Built-up Area (60%)
Typical Solar Area
(30%)
Typical PV Capacity
(kW)
Monthly Generation
(kWh)
Green Incentive (Rs.)
@ Rs. 2/ kWh
@ Rs. 3/ kWh
@ Rs. 4/ kWh
50 30 9 1 135 270 405 540
70 42 12.6 1.5 202.5 405 607.5 810
81 48.6 14.58 2 270 540 810 1080
90 54 16.2 3 405 810 1215 1620
135 81 24.3 4 540 1080 1620 2160
200 120 36 6 810 1620 2430 3240
250 150 45 7 945 1890 2835 3780
330 198 59.4 8 1080 2160 3240 4320
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Installations under 5 MW Gandhinagar Programme
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60.48 kW @ Lokayukta,
Sector 10
80.61 kW @ Govt. Arts College,
Sector 15
80.61 kW @ Govt. Arts College,
Sector 20
264.04 kW @ Jivraj Mehta Bhavan Nos. 1, 2 and 4, Sector 10-b
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PV Installation on J.M. Bhavan
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PV Installation on J.M. Bhavan (2)
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More Installations
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