d istributed g eneration successful implementation of grid-connected rooftop pv programmes 27...

DISTRIBUTED GENERATION

SUCCESSFUL IMPLEMENTATION OF GRID-CONNECTED ROOFTOP PV PROGRAMMES

27 November 2013

ICORE 2013

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Outline

Introduction

Critical Aspects for Successful Implementation

Programme Structure for G’nagar rooftop o Govt. Roleso Transaction Structureo Financial Structure

Outlook of Rooftop Policy of Gujarat

Key Learning of 5 MW Gandhinagar PV Rooftop2Distributed Generation- ICORE 2013; 27 Nov. 2013 [email protected]

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Success of Grid Connected Rooftop PV Programme

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Technical Configuration

Implementation

Long-Term Operation

Commercial Viability

Eventual Scalability

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Typical PV System Architecture

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Photovoltaic Modules(Approx. 1 – 100 kWP)

Grid-tied inverter Meter 2: Solar Electricity

Generation

Meter 1: Conventional Electricity Consumption

Transformer Grid


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Advantages of PV System Architecture

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Relatively simple to install, operate and maintain. Most popular and globally accepted configuration. Disadvantage: No availability when grid is down.

Meter 1: Conventional Electricity Consumption

Transformer Grid


Grid-tied inverter Meter 2: Solar Electricity

Generation


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Model II Net Metering

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Relatively simple to install, operate and maintain. Net Electricity consumed will be charged. Issue of Non availability of grid is addressed

Meter 1: Bi-directional Meter

Transformer Grid


Grid-tied inverter


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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 Regulatorso Home owners o Utility o R&D

“Kilowatt-programme at a megawatt-scale”


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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.

8Distributed Generation- ICORE 2013; 27 Nov. 2013 [email protected]

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Project

Implementation

Agreement

(PIA)

Transaction Structure among Stakeholders

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GoG/ EPD(Project Proponent)

GEDA(Nodal Agency)

GERMI(Project Str., Bid Process)

Azure Sun Energy(Capacity: 2.5 MW)

SPV by SunEdison (Capacity: 2.5 MW)

Torrent Power Ltd.(Off-taker)

2.5

MW

GPCL(Implementing Agency)

IFC & Consultants (Transaction Str. Advisor)

GERC(For Regulatory Approval)

GoG(For Govt. Approval)

PPA, based on GERC solar tariff

Ap

pro

vals

FundingG.R.

Screening & Selection

2 MW Govt. Rooftops

2 MW Govt. Rooftops

0.5 MW Private Rooftops

0.5 MW Private Rooftops

2.5

MW Gre

en

Ince

nti

ve

Selection through RFP


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Project Implementation Agreementfor ‘Viability’ tariff funding

Financial Transaction Model

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Torrent Power Ltd.(Off-taker)

2 xProject Developer (Capacity: 2.5 MW ea.)

GPCL(Implementing Agency)

Private Rooftops: 1 MW

Govt. Rooftops: 4 MW- R&B- Education- Legal- Forest & Environment- Industries & Mines- Agriculture- Health & Family Welfare- Vigilance- Collectorate- Revenue- (Can be replaced by

Commercial Rooftops/ Terraces)

Power Purchase Agreementbased on GERC solar tariff ofRs. 12.44 /kWh (w/o AD: Rs. 11.14 /kWh)P

P A

P I A

‘Green Incentive’ Agreement

Generation-based, minimumRs. 3 per kWh


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Implementation Process at G’nagar

11Distributed Generation- ICORE 2013; 27 Nov. 2013

Developer Submits the Plant Drawing

Developer Starts Installation

A= Day 0

PV Capacity allotted to the Developers

1.GERMI approves Drawing2. Once approved by GERMI CEI also approves it

B=A+3 days

Regular Inspections are done at the site

Completes PV DC Installation

1.GERMI Inspects and give Installation Certificate2. CEI simultaneously inspects and give Certificate

C= B + 20 days( for 70 kw PV

system)

D= C + Within 2 Days

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Implementation Process at G’nagar

Distributed Generation- ICORE 2013; 27 Nov. 2013 12

Ask GERMI/CEI for Commissioning Test

GERMI & CEI Performs Commissioning Test

GERMI & CEI Provides Commissioning

Certificate

Submits it to DisCom and PV Plant becomes Live

Start Paying Tariff to Developer

Within 2 Days

Submits Certificates to DisCom

DisCom installs meter and connects the Plant to the

Grid.Within 2 Days

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Consolidated Status as on 07 Nov, 2013

Sr. Status Azure SunEdison TOTAL

1 Commissioned 2,200.00 kW 1599.77 kW 3,799.77 kW

2 Installed 000.00 kW 237.00 kW 237.87 kW

TOTAL 2,200.00 kW 1,830.77 kW 4,030 kW

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Installations on Private Residential Premises

Total Energy Generated Till 23 July 2013 : 4,37,000 Green Units


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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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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 54070 42 12.6 1.5 202.5 405 607.5 81081 48.6 14.58 2 270 540 810 108090 54 16.2 3 405 810 1215 1620

135 81 24.3 4 540 1080 1620 2160200 120 36 6 810 1620 2430 3240250 150 45 7 945 1890 2835 3780330 198 59.4 8 1080 2160 3240 4320

Distributed Generation- ICORE 2013; 27 Nov. 2013


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Future Outlook

New Cities – 5-10 MW each:o Bhavnagaro Mehsanao Rajkoto Surato Vadodara

Incorporation of Rooftop Photovoltaics at Policy and Regulatory Level.

Explore different implementation models:o Feed-in or net metering?o Third party/ Developer driven or private ownership?

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The Gandhinagar Solar Rooftop Programme

is selected as on of the TOP 10 DEALS OF ASIA-PACIFIC

by Infrastructure Journal.


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Learning of Critical Aspects

How appealing is the Green Incentive?o What is the value of my roof?

How appealing is the Third-Party Model?o Am I willing to sign a 25-year lease agreement?o Why can’t I get the full benefit of my PV system?

Interdependency of Contracts and Financial Closure:o Lease Agreement PIA PPA.

Implementation:o Coordination between Statutory Bodies, Regulator, Chief Electrical

Inspector, DisCom, Building Owners/ Govt. Departments, Developer, Financer, Project Management, Social.


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Evolution & Implementation of Rooftop Solar PV Installations for Gujarat

Model I: Capital cost borne by the Governmento Advantage:

• Ease of implementation, and widely implemented.o Disadvantage:

• Ownership issues, and hence, maintenance suffers.o Example: Most rooftop solar installations by various governments throughout

India (including GEDA).

Model II: Public Private Partnership o Example: 5 MW Gandhinagar Rooftop Solar Programme.o Advantage:

• Generation-based incentive ensures long-term utilization.• Government interaction with limited number of credible Developers.• Standard quality and optimization of PV installations.• No upfront cost to Government/ Utility.

o Disadvantage: • Property owners unwilling to sign long-term lease agreements.• Incentives from solar generation not enough compared to real-estate lease.


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Model III: Individual Ownership (Proposed in Current Rooftop Solar Policy)

Advantage: o Equal opportunity to smaller rooftop owners.o Ownership of individual is well-defined.o Investors reap the direct benefit of electricity and

also become energy aware/ efficient.o Investment yields definite returns.o Potential for widespread public deployment.o Successful model globally.

Challenge: o Investment expected from someone who does not

understand technology.o Capital subsidies required to incentivize participation

(under net-metering scheme).o Direct dealing of DisComs directly with Customers.


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Policy Implementation: Preparatory Phase

DisComs: Obvious focal agencyo Specify standards of interconnection and Net-Meter.o Set up internal process viz. accepting applications for interconnection, PV system commissioning,

regulatory compliance, billing.

State Nodal Agency: GEDAo Empanelment of Channel Partners/ Installers.o Avail necessary funds from State Dept., Central Ministries.o Act as a single-window for disbursing subsidies.o Publicize and monitor overall progress.

Channel Partners/ Installerso Link between System Owners and DisCom/ GEDA for administrative procedures.o Comply with relevant guidelines of safety, standard, performance outlined by DisCom, GEDA, MNRE,

GERC, CEA, etc.

Eligible Entities/ System Ownerso Only employ Channel Partners/ Installers empanelled by GEDA.o Apply for interconnection of rooftop PV system.o Comply with any other approvals/ clearances required from time to time.o Shall be final beneficiaries of subsidies.o Shall own and be responsible for operation of PV systems.


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Policy Implementation: Preparatory Phase

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GEDA Empanels Channel Partners/ Installers.

DisComs set up standards for Net-Metering.

GEDA Educates Channel Partners with compliance

requirements.

GEDA publically promotes Rooftop Solar

Policy/Programme

DisComs set up internal processes for:

1. Accepting and scrutinizing customer applications, and

2. Commissioning PV systems.

Channel Partners commence their own marketing.

Rooftop Solar Policy is Launched.


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Policy Implementation:Implementation Phase

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Eligible Entity contacts Channel Partner.

Channel Partners undertak-es feasibility of installation.

Eligible Entity, via Channel Partner, applies to GEDA

for subsidy.

GEDA approves:1. Subsidy subject to fund

availability, and2. PV System capacity

subject to DisCom’s and CEI’s clearance.

DisCom:1.Verifies installation, and2. Installs Net-Meter to

commission the system.

Channel Partner installs rooftop PV system.

Eligible Entity, via Channel Partner, applies to DisCom

for interconnection.

DisCom bills System Owner based on net consumption.

System Owner owns and operates the PV system.

CEI’s Approves:1.Capacity of installations


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A Unit of Energy SAVED= 2 Units of Energy GENERATED



27 November 2013

ICORE 2013

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Backup Slides…

27Distributed Generation- ICORE 2013; 27 Nov. 2013


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Successful Developers

L1: Azure Sun Energy Pvt. Ltd. (“Azure”)

L2: Ananth Solar Power Maharashtra Pvt. Ltd. (“SunEdison”)o A subsidiary of SunEdison Energy India Pvt. Ltd.

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Azure SunEdisonQuoted Tariff: Rs. 11.21 /kWh Rs. 11.793 /kWhGERC Relevant Tariff: Rs. 11.14 /kWh Rs. 12.44 /kWh

Torrent pays: Rs. 11.21 /kWh Rs. 11.793 /kWhGoG-PIA (GPCL) Pays: Rs. 0.07 /kWh ---




27 November 2013

ICORE 2013

d istributed g eneration successful implementation of grid-connected rooftop pv programmes 27...

Documents

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