ACHIEVING SUSTAINABILITY THROUGH HIGH IMPACT ENERGY EFFICIENCY: SOLAR ROOFTOP ACHIEVING GRID PARITY

- Anmol Singh Jaggi

According to the Webster definition •Involving methods that do not completely use up

or destroy natural resources •Able to last or continue for a long time

Sustainability

Sustainability

Economy

Ecology Equity

Energy Efficiency

Have skylights & right orientation in building

Reduce Plug in Loads as they are controllable.

Replace Boilers / Furnaces with new versions

Have better ventilation / air conditioning

Energy Efficiency

Most Solutions Are Incomplete Or Not Measureable

Have skylights & right orientation in building

How do you do that in an Existing Building?

Reduce Plug in Loads as they are controllable.

How easy is it to control the natural habits of your team members?

Replace Boilers / Furnaces with new versions

What about the Loan you had taken to install the existing one?

Have better ventilation / air conditioning

Can your 12 year old calculate the savings involved?

Introducing Solar

Install Anywhere

Measurable Impact

Customize to Needs

Cap the Power Cost

Limitless Potential

Introducing Solar

Install Anywhere

Measurable Impact

Customize to Needs

Cap the Power Cost

Assured Availability

REDUCE

The Only Way to

Electricity permanently

Is to

Electricity permanently

REPLACE

Provisions of the Companies Bill Relating to CSR

Under the Section 135 of new Companies Act, 2013, passed by Parliament in August 2013, profitable companies must spend every year at least 2 per cent of their average net profit over the preceding three years on CSR works. This mandatory CSR-spend rule will apply from fiscal 2014-15 onwards. Those companies that have a turnover of Rs. 1,000 crore or more or net worth of Rs. 500 crore or more or net profit of Rs. 5 crore or more will have to comply. As per Schedule VII

ensuring environmental sustainability may be included by companies in their Corporate Social Responsibility Policies.

Why Rooftop?

• 25 Years Warranty

• Well Proven Technology

• Easy Installation

• Accelerated Depreciation Benefit

• Net Metering

• Andhra Pradesh • Tamil Nadu • Kerala

Policy & Regulatory

Support Financial Viability

Increased Assurance on Power

Supply

Technically Feasible

Solar Rooftop Overview

1 kW of Solar Panel:

• Generates 4 units in a day

• Requires 12 sqm of shadow free

rooftop space for installation

• The Panels come warrantied for 25

years

Matrix of operating scenarios

TIME

GRID

BATTERY STATUS

SUPPLY TO LOAD SUPPLY TO BATTERY

Solar Rooftop

Battery Grid Solar Rooftop

Grid

Day

Available Charged X X X

Discharged X X

Not Available

Charged X X X

Discharged X X X X

Night

Available Charged X X X X

Discharged X X X

Not Available

Charged X X X X

Discharged X X X X X

Equipments/Services Cost 100 kW System (Rs.)

Modules (Vikram/Waaree/ Reputed) 41,00,000

Inverter ( Danfoss/ Delta/ Reputed) 10,00,000

Structure (Hot dip galvanized iron) 6,00,000

Electrical & Civil Works 7,00,000

Cables ( Any reputed) 1,00,000

Combiner Box 1,00,000

Design & Engineering 2,00,000

Contingency & Contractor Margin 5,00,000

Total 73,00,000

On Grid system SLD

Off Grid System SLD

Net Metering

Week 1 Mon Tues Wed Thurs Fri Sat Sun

SOLAR Generation Produced from the Solar System

Consumption Consumed from Grid Consumed from Solar System

Export to Grid Extra

Week 2 Mon Tues Wed Thurs Fri Sat Sun

SOLAR Generation Produced from the Solar System

Consumption Week 1 Credit Consumed from Grid Consumed from Solar System

Export to Grid Extra

It is an incentive program to encourage customers to install distributed generation – Customers offset own electricity usage – Customers are compensated for any electricity they generate and don’t use

Net Metering: Case Study Schools

Education Institutes

Seasonal Industries Warehouse Software

Parks

Electricity Usage 50,000 units

Solar System Produces 10,000 units

Charged for 40,000 units

Working Months

Vacation Months Electricity Usage

2,000 units Solar System

Produces 10,000 units 8,000 units

credited

State: Andhra Pradesh (Commercial & Industrial)

IRR Comparison Key Assumptions

Variables:

Accelerated depreciation included

Accelerated depreciation excluded Capital Cost Rs.73,000/kW

Plant Load Factor 19%

Loan Terms 100% Domestic loans

Debt: Equity 70:30

Rate of Interest 13.0%

Tenure of Loan 7 years

O & M Rs. 9 Lac/MW escalation @ 5.72%

COD 31-Mar-14

Cost of Diesel consumption Rs14/kW

Power cut /day 2 hrs

State Andhra Pradesh

Category Industrial / Commercial

Tariff Rs 5.70/kWh / Rs 6.50/kWh

Blended rate Rs. 7.36/kWh / Rs 8/kWh

Industrial Commercial

14.42% 16.48%

18.65%

21.63%

State Focus: Tamil Nadu (Commercial & Industrial)

IRR Comparison Key Assumptions Variables:

Accelerated depreciation included

Accelerated depreciation excluded

Capital Cost Rs.73,000/kW

Plant Load Factor 18.5%

Loan Terms 100% Domestic loans

Debt: Equity 70:30

Rate of Interest 13.0%

Tenure of Loan 7years

O & M Rs. 9 Lac/MW escalation @ 5.72%

COD 31-Mar-14

Cost of Diesel consumption Rs14/kW Power cut /day 2hrs

Category Industrial/Commercial

Tariff Rs5.50/kWh/Rs 7.00/kWh

Industrial Commercial

13.33%

17.06% 17.10%

22.50%

State Focus: Karnataka (Commercial & Industrial)

IRR Comparison Key Assumptions

Variables:

Accelerated depreciation included

Accelerated depreciation excluded

Capital Cost Rs.73,000/kW

Plant Load Factor 18.50%

Loan Terms 100% Domestic loans

Debt: Equity 70:30

Rate of Interest 13.0%

Tenure of Loan 7 years

O & M Rs. 9 Lac/MW escalation @ 5.72%

COD 31-Mar-14

Cost of Diesel consumption Rs14/kW

Power cut /day 2hrs

Category Industrial/Commercial

Tariff Rs5.50/kWh / Rs 6.70/kWh

Industrial Commercial

13.33%

16.30%

17.10%

21.37%

State Focus: Maharashtra (Commercial & Industrial)

IRR Comparison Key Assumptions Variables: Accelerated depreciation included Accelerated depreciation excluded Capital Cost Rs.73,000/kW

Plant Load Factor 18%

Loan Terms 100% Domestic loans

Debt: Equity 70:30

Rate of Interest 13.0%

Tenure of Loan 7 years

O & M Rs. 9 Lac/MW escalation @ 5.72%

COD 31-Mar-14

Cost of Diesel consumption Rs14/kW

Power cut /day 2 hrs

Category Industrial / Commercial

Tariff Rs7/kWh / Rs 9.80/kWh

Industrial Commercial

16.34%

23.61% 21.43%

32.87%

Solar Rooftop

Daily electricity generation (kWh) 4

Deration in generation during first 2 years 1.50%

Deration from the 3rd year 0.70%

Cost of the 1 kW solar rooftop system (INR) 1,45,000

Diesel Genset

Cost of the 1 kVA Diesel Genset (INR) 17,000

Cost of diesel (INR/litre) 54

specific energy consumption of this DG set (kWh/litre) 3.5

Grid Tariff (at present) 5.5

Annual Escalation in tariff 5%

Lifetime of DG set (years) 7

Inverter with Battery

Cost of the 1 kW inverter system (INR) 50,000

Battery back up (hours) 4

1 kW Rooftop System

Solar Rooftop

DG Set Inverter with

Battery

1.68

2.33

1.48

Lifetime Cost (10 Years) in lakhs

Case Study: Residential & Small Commercial

• The Client wanted to operate majority of its load including Air Conditioners, television and other gadgets on Solar with an adequate power backup.

• Aesthetics were of particular importance to the owner as was the system reliability.

• Gensol invested in additional electronic equipment to be able to operate delicate and expensive residential equipment and further, gave the finishing reserved for high end hotels.

Name: 12 kW Solar Rooftop Off Grid Project Type of Load: Residential Load Name of Client: Pratiman Textiles Location: Surat, Gujarat

Case Study: Residential & Small Commercial

• Situated in rural Rajasthan, the Sahakari Bhoomi Vikas Bank suffered from frequent power cuts.

• Gensol constructed the system to power the most critical loads at the bank.

Name:5 kW Solar Rooftop Off Grid Solar Project Type of Load: Commercial Load Name of Client: Sikar Sahakari Bank Location: Sikar, Rajasthan

Case Study: 1 kW Residential

Name of Project: 10,000 Residential Rooftop Solar Off-Grid Power Plant Program ANERT Project by Govt. of Kerala. Aesthetically designed kit with no separate civil structures for residential load

Module capacity 1000 Wp

Inverter/PCU capacity

1000kVA

Battery technology VRLA or Tubular Gel

Battery storage capacity

5400Wh 7200Wh 12000Wh

Back up in hours 4 6 9

Case Study: Commercial (Large Rooftops)

Name: Solar Rooftop Grid Tied 100 kW VVIT College Type of Load: Commercial Load Name of Client: VVIT Location: Guntur, Andhra Pradesh

• VVIT is engineering college at Guntur in Andhra Pradesh.

• In order to reduce their electricity bills and gain energy security, VVIT appointed Gensol to execute one of the largest single rooftop project in the region.

• The project has been commissioned and is now generating more than 450 units per day

Case Study: Commercial (Large Rooftops)

Name: Solar Rooftop Grid Tied 130 kW Type of Load: Commercial Load Name of Client: NIMS Hospital Location: Trivandrum, Kerala

• NIMS is renowned hospital in Kerala built under the auspices of Noorul Islam Educational Trust.

• NIMS appointed Gensol to execute by far the largest rooftop project in Kerala. Notably, the Hospital management plans to run its critical processes on solar power.

• The project is under construction and is scheduled to be commissioned by November end.

About Gensol

Gensol, an ISO 9001:2008 certified company is a pioneer in Solar Power Advisory and Project Execution. Gensol is an advisor to 800MW+ commissioned or under construction Solar PV Projects and has a cumulative portfolio of more than 1 MW of rooftop solar power plants under execution.

• Solar Advisory & Project Execution

• Carbon Advisory & Trading

• Renewable Energy Certificate Advisory & Trading

• Power Trading

360o Clean Energy Solutions:

About Gensol

Few Facts:

• 30+ Trained Team - all Graduates and Post Graduates in

Energy and Environment

• 800 MW+ Solar Power Projects under advisory

• 1 MW+ Solar Rooftop Projects under Execution

• Recipient of multiple awards including Business World Hottest

Young Entrepreneur and Economic Times Power of Ideas.

Quoted In:

Business Dailies: Business Standard | Economic Times Business

Magazines: Business India | Forbes India

Industry Journals: Power Line | Energetica | EQ International

Empanelled With:

Ministry of New & Renewable Energy

ANERT, Kerala (10,000 solar rooftops program)

Central Bank of India, PTC Project Financial Services, PFC,

L&T Infra Finance & Other Banks

Solar Advisory & EPC Services

Owner’s Engineer: As Owner's Engineer, we guide our clients or investors through the complete process of project feasibility, financial closure, bid process management, vendor finalization and supervision of project execution up till successful project commissioning which meets our strict quality criteria. Lender’s Engineer: Being consultants to some of the leading lending institutions in the country, we assess the key parameters impacting the returns from the project like generation, cost and conditions of the EPC Contract, preparedness of Project Developer for execution etc. Detailed Engineering and Vetting of Drawings: Gensol Solar Division is staffed with experienced Electrical, Electronics, Mechanical and Civil Engineers who undertake detailed engineering of Solar PV Power plants on behalf of EPC Contractors and vetting of drawings for Project Developers and investors. Permits & Clearances: It takes more than 32 permits and clearances from Nodal Agencies, District Authorities, Distribution and Transmission Companies etc. Gensol has an experienced liasoning team well aware of process and people to acquire these permits in time and in sequence. Detailed Project Report: A Detailed Project Report is one of the most important documents to assess the feasibility of project and to get financial closure. Gensol with its sector expertise and established standing in the renewable energy consultancy not only gives the most exhaustive analysis of the project but also enjoys the confidence of industries, investors and banks alike. Solar EPC Services Gensol, being a channel partner of Ministry of New and Renewable Energy (MNRE) has attained amongst the highest allocation of subsidies for the Solar Rooftop Projects on account of its superior engineering, standardized procurement and quick execution. Gensol has executed projects in the range of 1 kW powerpacks to 100 kW single rooftop power plants.

Advisory Experience Snapshot

Gensol is among the leading consultants to Project Developers, Financial Institutions and Investors. Total portfolio of Solar Power Projects commissioned or under construction under advisory at Gensol is more than 800 MW.

• 33 MW – Sterling & Wilson, Rajasthan • 25 MW – Alex Astral Solar Power Ltd., Gujarat • 20 MW – Essel Infraprojects, Maharashtra • 17 MW – Sunrays Power Solutions, Rajasthan • 15 MW – NALCO, Orissa • 6.5 MW – Haryana Power Generation Corporation Ltd,

Haryana Govt Enterprise • 10 MW – Ghodawat Group, Rajasthan • 5 MW – Konark Group, Gujarat • 5 MW – Alex Spectrum Radiation Pvt Ltd, Rajasthan • 3 MW – Par Solar, Rajasthan • 1 MW – Agarwal Infratech Ltd, Gujarat • 350 kW – Mapro Foods Pvt Ltd, Maharashtra

Owner’s Engineer: • 50 MW – Welspun Energy Ltd, Rajasthan • 25 MW – Sun Edison, Gujarat • 20 MW – PLG Power, Gujarat • 15 MW – MI Mysolar 24, Gujarat • 15 MW – Dreisatz Mysolar 24, Gujarat • 10 MW – Greeninfra Solar, Gujarat • 10 MW – Millenium Synergy, Gujarat • 6.5 MW – Sun Group, Gujarat • 6 MW – Indiabulls Power, UP & Maharashtra • 5 MW – ESP Urja, Gujarat

Lender’s Engineer:

• 20 MW – Client Confidential, Gujarat • 8.5 MW – Jain Irrigation, Maharashtra • 5 MW – ABB Ltd, Gujarat • 1 MW – L&T ECC Division, Rajasthan • 2 MW – R V Akash Ganga, Uttarakhand

Detailed Designing & Design Vetting • 20 MW – Sai Sudhir Energy, Andhra Pradesh • 10 MW – Sai Sudhir Energy, Karnataka • 5 MW – Chemtrol Industries, Rajasthan • 2 MW – Shri Bhagirathi Textiles Ltd, Maharashtra • 15 MW – Boyance Infrastructure, Rajasthan • 5 MW – Sattva Salarpuria Group, Karnataka • 3 MW – MWP Energy, Karnataka • 1 MW – NIT Hamirpur, Himachal Pradhesh

Feasibility Analysis & DPR:

Experience Snapshot

• 163 MW Grid Connected Gujarat

• 129 MW Grid Connected Rajasthan

• 35 MW Grid Connected Maharashtra

• 18 MW Grid Connected Karnataka

• 15 MW Grid Connected Odisha

• 6.5 MW Grid Connected Haryana

• 2 MW Grid Connected Uttarakhand

• 2 MW Grid Connected Uttar Pradesh

• 1 MW Grid Connected Himachal Pradesh

• 130 kW Rooftop Grid tied Kerala

• 100 kW Rooftop Grid tied Andhra Pradesh

• 92 kW Grid Tied & Off Grid Gujarat

• 20 kw Grid Tied & Off Grid Delhi

• 5 kW Off Grid Rajasthan

• 2 kW Off Grid Uttar Pradesh

• Empanelled with ANERT, Kerala for 10,000 Rooftops

Solar Program

Advisory:

Execution:

Gensol is among the forefront of Solar Rooftop execution with more than 1 MW as its clientele ranging from 1 kW power packs upto 130 kW single rooftop power plants.

Gensol Engineering Pvt Ltd | Gensol Consultants Pvt Ltd

Corporate Office 108, Pinnacle Corporate Park Prahalad Nagar Ahmedabad - 380015 Gujarat, India

Email: solar@gensol.in Website: www.gensol.in Phone: +91 79 40068235 Fax: +91 79 40068239 Twitter: gensol_tweets

Gensol is one of the leading consultants and system integrators for Solar Power Plants. We boast of a portfolio of over 800

MW of Solar Photovoltaic Plants. Gensol is also a channel partner to Ministry of New & Renewable Energy and installs kW

scale Solar Rooftop systems on a turnkey basis with more than 1 MW of cumulative installations across the country.

The information contained herein is of a general nature and is not intended to address the circumstances of any particular

individual or entity. Although we endeavor to provide accurate and timely information, there can be no guarantee that such

information is accurate as of the date it is received or that it will continue to be accurate in the future. No one should act on

such information without appropriate professional advice after a thorough examination of the particular situation.