1 Mw Soalr Power Plant Project Report 5m31a

Acknowledgement This analysis based report is done for the readers of my previous report 1MW Utility Scale SPV Power Plant, mainly for the readers from South region of INDIA as they are asking repeatedly about the probability and feasibilitytechnical & Financial-of a SPV power plant in their region. At the same time it’s not possible for me to design a report for each and every state from South India, so I took Chennai city. Also the previous report was not so detail, was very basic and meant to the readers who want to get an overview on how a utility scale power plant works. Now, in this report, I discuss about in depth. From ’s selection to CB sizing all are presented in very detail. Hope, this time you get a strong knowledge on deg and estimation of 1MW solar PV power plant. Unlike the previous report, the financial aspect discussed at the end of the paper. In this paper, the financial assessment has done in very detail and considering the current scenario of SPV market including the cost of solar PV modules, inverters’ cost, cable, transformer etc. prices and the funding, interest rate..

Disclaimer The presented data here are NOT TAKEN from any copyright materials and not showing under my name. The meteo data collected from NASA website and NREL database which is free over the internet. Deg of PV system is totally based on the practical experience of the author.

Assumption & Consideration Shading consideration: No shading has been considered at the site during the calculation design. So it is advised that at the time of execution, please check whether there is any kind of obstacle in the site which may cause partial/full shading on PV strings and/or PV array. If the shading occurs, then the estimated power generation will not match the actual power generated. Load Factor: It is assumed that the produced power from the PV plant will be fed to the local utility grid. So, while deg the system, no unbalanced load considered in 3 phase configuration. Meteo data: The calculation based on the meteo data collected from NASA website which is very reliable. Now, based on the co-ordinates the values have been presented in this report. So, total design is based on this data. For a different location (coordinates), the system design will differ. It is advised not to copy and implement the design without consulting the author www.renewpowerzo ne.in

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or any certified PV professional because this design estimation is valid only for a particular site.

www.renewpowerzo ne.in

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Site consideration: this design has been done by considering the PV modules & array will be 0 ground-mounted and the site-elevation angle taken 3 . Cost Estimation: 1MW Solar PV power plant cost estimation has done considering the current PV market scenario (Sept-Dec 2013), so after few months the cost may vary according the market. CAD design & layout: I have not ed/attached the CAD design. If anybody interested in setting up the plant then only at the given email ids to get the design file. Transmission & wheeling losses: Here, in this report, while doing the technical assessment, the distance from nearest substation to the 1MW solar PV power plant taken within 1.5 KM and so the wheeling losses considered as 3% of total power transmission. And in the financial assessment, no wheeling charges have been considered. Design Criteria: While deg & estimating the technical components & solutions, all the required/applicable standard design codes have been considered. Mainly the IEC (International Electrotechnical Commission) Codes, IS codes from BIS have been considered thoroughly.

Contents 1) Introduction 2) Project details 3) Location metrological details 4) Determination of optimum tilt angle 5) Solar power plant overview 6) Module selection & sizing 7) Inverter selection & sizing 8) Transformer selection 9) Other protective devices including switch gear details 10) selection 11) details 12) analysis & simulation 13) project 14) maintenance structure of the plant 15) calculation, estimation of NCF, Payback period 16) selection of various components

4 5 6 7 8 9 11 12 13 Cable sizing & 14 Civil works 16 Performance 17 Timeline of the 21 Operation & 22 Financial 23 Guide on 27

PROJECT AT A GLANCE 1.

Name of the Company.

2.

Regd. Office.

: : SRIKAKULAM DIST

3. Works.

:

SRIKAKULAM Dist.

4.

Line of Activity.

:

1 MW SOLAR Power plant

5.

Sector.

:

Large Scale

6.

Constitution.

:

Private Limited

7.

Project Cost & Means of Finance. : (Rs in

Lacs) PROJECT COST

EPC(, civil works and equipment) Deposits Land and License TOTAL

8. Promoters Contribution. 9. Debt/Equity. 10. Installed Capacity.

AMOUNT

MEANS OF FINANCE

709.00 Capital: 80.00 Bridge loan from Bank(10% on project) 8.0 Term loan from NRI 0 805.00 TOTAL

: 10.00% 4:1 : 1 MW

A M O U N T 80.50 80.50 644.00 805.00

Brief History of Project Introduction: XXX SOLAR ENERGY PVT LTD consists of 5 acres of land with a capacity to host over 1 megawatts of solar power plant. The Solar Project is divided into plots providing necessary infrastructure such as smart power evacuation facilities, approach and internal roads, water supply and storage, and office buildings.

The above said project is in the process of setting up a 1 MW Solar PV project in the prestigious Solar Project at Srikakulam Dist.

Location: Village Distric t State Latitud e Longit ude Solar Project plots

Srikakulam Andhra Pradesh

xxx

Sailent Features:

Project capacity Earmarked Land Technology Solar Irradiation (GHI) CUF Performance Ratio Annual Energy Generation Rating of Photovoltaic Modules No. of Modules required Quantity of Water required to wash modules per day

1 MW 5 Acres Crystalline Silicon / Thin Film Modules 5.7 kWh/m2/Day 20% 80% 1.76 BU 250 Watt 400, 000 80000 Ltrs

Wash Cycle Size of Invertors No of Invertors Evacuation Power evacuation upto 500 MW Power evacuation beyond 500 MW

15 days 500 KW 200 11/66 kV Line 220 kV Substation 400 k V Substation

Solar power in India

India's solar resource India is densely populated and has high solar insolation, an ideal combination for using solar power in India. Moreover, it's other energy resources are relatively scarce. In the solar energy sector, some large projects have been proposed, and a 35,000 km2 (14,000 sq mi) area of the Thar Desert has been set aside for solar power projects, sufficient to generate 700 to 2,100 GW. In July 2009, India unveiled a US$19 billion plan to produce 20 GW of solar power by 2020. Under the plan, the use of solar-powered equipment and applications would be made compulsory in all government buildings, as well as hospitals and hotels. [2]In January 2015, the Indian government significantly expanded its solar plans, targeting US$100 billion of investment and 100 GW of solar capacity by 2022 According to a 2011 report by BRIDGE TO INDIA and GTM Research, India is facing a perfect storm of factors that will drive solar photovoltaic (PV) adoption at a "furious pace over the next five years and beyond". The falling prices of PV s, mostly from China but also from the U.S., has coincided with the growing cost of grid power in India. Government and ample solar resources have also helped to increase solar

adoption, but perhaps the biggest factor has been need. India, "as a growing economy with a surging middle class, is now facing a severe electricity deficit that often runs between 10% and 13% of daily need". India is planning to install the World's largest Solar Power Plant with 4,000 MW Capacity near Sambhar Lake inRajasthan. There are various factors that we need to consider before investing into a solar power plant. A lot of enthusiasm has been seen among people about the use of Solar Energy as a substitute of conventional sources of energy. However, currently, with the power subsidies in India, solar works economical only in those areas that are using diesel generators as a primary source of electricity. The entire payback is made in 2–3 years. Solar system for petrol pumps is a leading example of such an application. IOCL is leading the race for solarization of petrol pumps with aggressive targets. Solar applications for petrol pumps by RelyOn Solar has been installed in more than 150 IOCL petrol pumps across India and now other oil companies are also looking to solarize their ROs. Solar installations for commercial buildings, where the electricity rates are higher, are also proving to be a game changer for the owners of IT companies. On 16 May 2011, India’s first 5 MW of installed capacity solar power project was ed under the Clean Development Mechanism. The project is in Sivagangai Village,Sivaganga district, Tamil Nadu. Current status Installed solar PV Year

Cumulative Capacity (in MW)

2010

161

2011

461

2012

1,205

2013

2,319

2014

2,632

2015

3,744

With about 300 clear, sunny days in a year, India's theoretical solar power reception, on only its land area, is about 5,000 trillionkilowatt-hours (kWh) per year (or 5 EWh/yr). The daily average solar energy incident over India varies from 4 to 7 kWh/m 2 with about 1,500–2,000 sunshine hours per year (depending upon location), which is far more than current total energy consumption. For example, assuming the efficiency of PV modules were as low as 10%, this would still be a thousand times greater than the domestic electricity demand projected for 2015. The amount of solar energy produced in India in 2007 was less than 1% of the total energy demand. The grid-connected solar power as of December 2010 was merely 10 MW Government-funded solar energy in India only ed for approximately 6.4 MW-yrs of power as of 2005. However, India is ranked number one in of solar energy production per watt installed, with an insolation of 1,700 to 1,900 kilowatt hours per

kilowatt peak (kWh/KWp). 25.1 MW was added in 2010 and 468.3 MW in 2011. By end March 2015, the installed grid connected solar power capacity is 3,744 MW, and India expects to install an additional 10,000 MW by 2017, and a total of 100,000 MW by 2022. India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

GW·h /year[1 8]

Capac ity factor

Notes

DonBosco,Kurla, Omega Natural Polarity (ONP) Mumbai- 0.1 Maharashtra

Commissioned December 2014

Charanka Solar Park Charanka village, Patan district, Gujarat

221

Commissioned April 2012

Welspun Solar MP project 151 MW Neemuch Solar Plant Neemuch,Madhya Pradesh

151

Commissioned February 2014

Mahagenco 125 MW Solar Project- Maharashtra

125

Commissioned March 2013

Green Energy Development Corporation Ltd (GEDCOL) - Odisha

50

Commissioned 2014

Tata Power Solar Systems Ltd (TPS) - 50 MW NTPC - Rajgarh,Madhya Pradesh

50

Commissioned March, 2014

Welspun Energy 50MW Rajasthan Solar Project Phalodhi, Rajasthan

50

Commissioned March 2013

India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

Green Energy Development Corporation Ltd (GEDCOL) - Odisha

48

Commissioned 2014

Bitta Solar Power Plant (Adani Power) - Bitta, Kutch District, Gujarat [

40

Commissioned January 2012

Dhirubhai Ambani Solar Park, Pokhran, Rajasthan

40

Commissioned in April 2012

Moser Baer - Patan, Gujarat

30

Commissioned October 2011

Mithapur Solar Power Plant (Tata Power) - Mithapur, Gujarat

25

Commissioned 25 January 2012

Green Energy Development Corporation Ltd (GEDCOL) - Odisha

20

Commissioned 2014

Vivaan Solar - Madhya Pradesh

15

Commissioned 2014

Sunark Solar - Odisha

10

Commissioned 2011

NTPC Limited - Odisha

10

Commissioned 2014

GW·h /year[1 8]

Capac ity factor

Notes

India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

Raajratna Energy Holdings Bolangir Solar Power Project - Odisha

10

Commissioned 2011

Azure Power - Sabarkantha, Khadoda village, Gujarat

10

Commissioned June 2011, 63 acres, using 36,000 Suntech Power s.[31]

Green Infra Solar Energy Limited - Rajkot, Gujarat

10

Commissioned November 2011

Waa Solar Power Plant (Madhav Power) - Surendranagar, Gujarat

10

Commissioned December 2011

Tata Patapur - Odisha

9

Commissioned 2012

Skygen Infrabuild - Odisha

5

Commissioned 2011

Konark Kranti Energy - Odisha

5

Commissioned 2011

Mahindra & Mahindra Solar Plant, Jodhpur, Rajasthan

5

Completed in January 2012

Sivaganga Photovoltaic Plant, Tamil Nadu

5

Completed December 2010

GW·h /year[1 8]

Capac ity factor

Notes

India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

Citra and Sepset Power Plants, Katol, Maharashtra

4

Commissioned October 2011

Sunark Solar - Odisha

3

Commissioned 2011

Abacus Holdings - Odisha

3

Commissioned 2011

Orion Solar - Odisha

3

Commissioned 2011

Skygen Infrabuild - Odisha

3

Commissioned 2011

IIT Bombay - Gwal Pahari, Haryana

3

Commissioned 26 September 2011

Itnal Photovoltaic Plant, Belgaum, Karnataka

3

Completed April 2010

Kolar Photovoltaic Plant, Yalesandra, Kolar District, Karnataka

3

Completed May 2010

Tata Power - Mulshi, Maharashtra

3

Commissioned April 2011

Tata Power Solar- Murugan Textiles, Palladam, Tamil Nadu

2

August 2014

GW·h /year[1 8]

Capac ity factor

Notes

India's largest photovoltaic (PV) power plants

DC Peak Power (MW)

Name of Plant

Azure Power - Ahwan Photovoltaic Plant, Punjab

GW·h /year[1 8]

Capac ity factor

Notes

2

December 2009

Jamuria Photovoltaic Plant, West Bengal

2

August 2009

TAL Solar Power Plant - Barabanki, Uttar Pradesh

2

Commissioned January 2012

Omega Renk Bearings Pvt. Ltd. Solar Plant - Madhya Pradesh

1.5

Commissioned 2013

M G M Minerals - Odisha

1

Commissioned 2010

Raajratna Energy Holdings - Odisha

1

Commissioned 2011

Tata Power - Odisha

1

Commissioned 2011

Amruth Solar Power Plant - Kadiri, Andhra Pradesh

1

Commissioned March 2012

B&G Solar Pvt Ltd - Mayiladuthurai, Tamil Nadu

1

India's First plant Commissioned under JNNSM scheme 10 June 2011

Gandhinagar Solar Plant,

1

21 January 2011

[32][43]

India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

GW·h /year[1 8]

Capac ity factor

Notes

Gujarat

NDPC Photovoltaic Plant, Delhi

1

2010

Numeric Power Systems, Coimbatore, Tamil Nadu

1

Commissioned February 2012

Rasna Marketing Services LLP, Ahmedabad, Gujarat

1

Completed in December 2011

Solid Solar by Gautam Polymers, Delhi, Haryana, UP, Tamil Nadu

1

Tata Power - Osmanabad, Maharastra

1

Commissioned 1 August 2011

Urja Global Limited - Jharkhand, Delhi

1

Commissioned 1 August 2012

Thyagaraj stadium Plant - Delhi

1

April 2010

Zynergy, Vannankulam village, Peraiyur, Madurai district, Tamil Nadu

1

Commissioned January 2012

Chandraleela Power Energy

0.8

Commissioned 15

India's largest photovoltaic (PV) power plants

Name of Plant

DC Peak Power (MW)

GW·h /year[1 8]

Capac ity factor

Notes

January 2012, (EPC by Aryav Green Energy Solutions Pvt. Ltd.)

- Narnaul, Haryana

State

MWp

%

Andhra Pradesh

127.85

4.00

Chhattisgarh

4.0

0.30

Delhi

2.5

0.19

Gujarat

654.8

49.90

Haryana

7.8

0.59

Jharkhand

4.0

0.30

Karnataka

9.0

0.69

Madhya Pradesh

132.0

9.15

Maharashtra

20.0

1.38

Ref

State

MWp

%

Odisha

13.0

0.99

Punjab

9.0

0.69

Rajasthan

510.25

38.89

Tamil Nadu

15.0

1.14

Telangana

1.0

0.08

Uttar Pradesh

12.0

0.91

Uttarakhand

5.0

0.38

West Bengal

2.0

0.15

Total

1442.10

100

Ref

[59]

[17][60]

Solar power in Andhra Pradesh The installed capacity is 128 MW as on February 2015. During the year 2014, APTransCo has entered in to agreements with IPPs to install 619 MW. NTPC also entered in to agreement in the year 2015 with APTransCo to install 250 MW plant (first phase of the 1,000-Mw ultra solar power project) in the economically backward Anantapur district.

Solar power in Gujarat Gujarat has been a leader in solar power generation and contributes 2/3rd of the 900 MW of photovoltaics in the country.The State has commissioned Asia’s biggest solar park at Charanka village. The park is already generating 2 MW solar power out of its total planned capacity of 500 MW. The park has been functioning on a multi-developers and multibeneficiaries paradigm and has been awarded for being the most innovative and environment-friendly project by the CII.

With a view to make Gandhinagar a solar city, the State government has launched a rooftop solar power generation scheme. Under this scheme, the State plans to generate five megawatt of solar power by putting solar s on about 50 state government buildings and on 500 private buildings. The State has also a plan to emulate this project in Rajkot,Surat, Bhavnagar and Vadodara in 2012-13. The State plans to generate solar power by putting solar s on the Narmada canal branches. As a part of this scheme, the State has already commissioned a one megawatt solar plant on a branch of the Narmada Canal near Chandrasan area of Anand taluka. This also helps by stopping 90,000 liter water/year of the Narmada river from evaporating.

Solar power in Rajasthan Rajasthan is one of the states of India in the field of solar energy. The total photovoltaic capacity has ed 500 MW, reaching 510.25 MW at the end of the 2012-13 fiscal year. The district of Jodhpur leads with 42 projects totalling 293 MW, followed by Jaisalmer and Bikaner. In total there were 84 projects with installed capacity of 512.9. The French group AREVA solar is currently engaged in constructing a 250 MW concentrated solar power (CSP) installation which will become the largest CSP installation in Asia. A 4,000MW Ultra Mega Green Solar Power Project (UMPP) is being built near Sambhar Lake in Rajasthan. Upon Completion, it would be world's largest Solar Power Plant. It is expected to be built in 4 phases, with the first phase likely to be commissioned by the end of 2016 with 1,000 MW capacity. The total cost of each phase of the project is estimated to be 70 billion (US$1.1 billion) and the entire project is expected to be completed in 7 years. The present Prime Minister Narendra Modi has put great emphasis on solar projects and is inviting FDI in this sector.

Solar power in Maharashtra The Shri Sai Baba Sansthan Trust has the world's largest solar steam system. It was constructed at the Shirdi shrine at an estimated cost of Rs.1.33 crore, Rs.58.4 lakh of which was paid as a subsidy by the renewable energy ministry. The system is used to cook 50,000 meals per day for pilgrims visiting the shrine, resulting in annual savings of 100,000 kg of cooking gas and has been designed to generate steam for cooking even in the absence of electricity to run the feed water pump for circulating water in the system. The project to install and commission the system was completed in seven months and the system has a design life of 25 years. Osmanabad region in Maharashtra has been blessed with abundance of sunlight and is ranked the third best region in India in of solar insolation. A 10 MW solar power plant in Osmanabad, Maharashtra byRelyOn Solar, generates approximately 18 Lac units per MW which is the highest generation in Maharashtra by any other solar power plant. This plant was commissioned in 2013 and the records of one complete year are available.

Solar power in Madhya Pradesh The Welspun Solar MP project, the largest solar power plant in India set up at a cost of Rs. 1,100 crore on 305 hectares of land, will supply power at Rs. 8.05 a kWh. The project of a 130MW solar power plant at Bhagwanpur in Neemuch was launched by Gujarat chief Minister, Narendra Modi. “Ujaas Energy Limited , an Indore based company which is listed on BSE /NSE . It has installed over 105 MWs in five solar parks viz. , Rajgarh , Barod, Ichchhawar , Rojhani and

Susner , in Madhya Pradesh . The company is proud to be backed by Mr Amitabh Bachhcan who holds 1.6 % stake according to latest filing. Ujaas is the pioneer of solar REC Mechanism in India". Apart from company’s innovative PLUG & PLAY Ujaas Park model where it provides an end to end solution to the investors, the company has also done substantial solar roof top installations in Chennai, UP,AP,( Noida,Greater Noida )Delhi/NCR region etc... under the allocation from SECI-Phase-II and under JNNSM. Ujaas has ranked at No 2 as India’s Fastest Growing Company by a renowned magazine on Renewable Energy, Business World . The company has made it onto prestigious Forbes Asia's 200 Best Under a Billion dollar Companies list.”. Vivaan Solar, Gwalior based company started in Aug 2012 owns 45MW of solar park capacity in Madhya Pradesh. The plant is located in Kadodiya Village, Ujjain district. The company has also stepped forward in providing rooftop solar solutions for homes and business s. There is an 750 MW solar power plant project in Madhya Pradesh in the district of Rewa which, when completed, will be the world's largest solar power plant, backing the Desert Sunlight project in California. Applications Rural electrification Lack of electricity infrastructure is one of the main hurdles in the development of rural India. India's grid system is considerably under-developed, with major sections of its populace still surviving off-grid. As of 2004 there are about 80,000 unelectrified villages in the country. Of these villages, 18,000 could not be electrified through extension of the conventional grid. A target for electrifying 5,000 such villages was set for the Tenth National Five Year Plan (2002–2007). As of 2004, more than 2,700 villages and hamlets had been electrified, mainly using solar photovoltaic systems. Developments in cheap solar technology are considered as a potential alternative that allows an electricity infrastructure consisting of a network of local-grid clusters with distributed electricity generation. It could allow bying (or at least relieving) the need to install expensive, lossy, long-distance, centralized power delivery systems and yet bring cheap electricity to the masses. India currently has around 1.2 million solar home lighting systems and 3.2 million solar lanterns sold/distributed. Also, India has been ranked the number one market in Asia for solar off-grid products. Projects currently planned include 3,000 villages of Orissa, which will be lighted with solar power by 2014. Solar lamps and lighting By 2012, a total of 4,600,000 solar lanterns and 861,654 solar powered home lights had been installed. These typically replace kerosene lamps and can be purchased for the cost of a few months worth of kerosene through a small loan. The Ministry of New and Renewable Energy is offering a 30% to 40% subsidy for the cost of lanterns, home lights and small systems up to 210 Wp. 20 million solar lamps are expected by 2022. Agricultural

Solar PV water pumping systems are used for irrigation and drinking water. The majority of the pumps are fitted with a 200–3,000 watt motor that are powered with 1,800 Wp PV array which can deliver about 140,000 litres (37,000 US gal) of water per day from a total head of 10 metres (33 ft). By 30 September 2006, a total of 7,068 solar PV water pumping systems had been installed, and by March 2012, 7,771 had been installed. Solar driers are used to dry harvests before storage. Solar water heaters Bangalore has the largest deployment of roof top solar water heaters in India. These heaters generate an energy equivalent of 200 MW. Bangalore is also the first city in the country to put in place an incentive mechanism by providing a rebate of 50 (79¢ US) on monthly electricity bills for residents using roof-top thermal systems. These systems are now mandatory for all new structures. Pune has also recently made installation of solar water heaters in new buildings mandatory.

Challenges and opportunities

Price history of silicon PV cells since 1977. The great thing about solar power is that it is a technology and not a fuel. It is unlimited and the more it is deployed the cheaper it would be. While the more limited fossil fuels are used, the more expensive they become. Land is a scarce resource in India and per capita land availability is low. Dedication of land area for exclusive installation of solar arrays might have to compete with other necessities that require land. The amount of land required for utility-scale solar power plants — currently approximately 1 km2 (250 acres) for every 20–60 MW generated — could pose a strain on India's available land resource. The architecture more suitable for most of India would be a highly distributed set of individual rooftop power generation systems, all connected via a local grid. However, erecting such an infrastructure, which does not enjoy the economies of scale possible in mass, utility-scale, solar deployment, needs the market price of solar technology deployment to substantially decline, so that it attracts the individual and average family size household consumer. That might be possible in the future, because PV is projected to continue its current cost reductions for the next decades and be able to compete with fossil fuel. Government can provide subsidies for the production of PV s, in which there will be reduction in the market price and this can lead to more usage of solar power in India. In the past three years, solar-generation costs here have dropped from around 18 (29¢ US) a kWh to about 7 (11¢ US) a kWh, whereas power from imported coal and domestically-produced natural gas currently costs around 4.5 (7.1¢ US) a kWh and it is increasing with time. Experts believe that ultra mega solar

power plants like the world’s largest 4,000 MW UMPP in Rajasthan, would be able to produce power for around 5 (7.9¢ US) a kWh. Some noted think-tanks recommend that India should adopt a policy of developing solar power as a dominant component of the renewable energy mix, since being adensely populated region in the sunny tropical belt, the subcontinent has the ideal combination of both high solar insolation and therefore a big potential consumer base density. In one of the analysed scenarios, India can make renewable resources such as solar the backbone of its economy by 2050, reining in its long-term carbon emissions without compromising its economic growth potential.

Government

Solar Radiation Resource Assessment stations in India 51 Solar Radiation Resource Assessment stations have been installed across India by the Ministry of New and Renewable Energy (MNRE) to monitor the availability of solar energy. Data is collected and reported to the Centre for Wind Energy Technology (C-WET), in order to create a Solar Atlas. The government of India is promoting the use of solar energy through various strategies. In the latest budget for 2010/11, the government has announced an allocation of 1000 crore towards the Jawaharlal Nehru National Solar Mission and the establishment of a clean energy fund. It is an increase of 380 crore from the previous budget. This new budget has also encouraged private solar companies by reducing customs duty on solar s by 5% and exempting excise duty on solar photovoltaic s. This is expected to reduce the cost of a roof-top solar installation by 15–20%. The budget also proposed a coal tax of US$1 per metric ton on domestic and imported coal used for power generation. Additionally, the government has initiated a Renewable Energy Certificate (REC) scheme, which is designed to drive investment in low-carbon energy projects.

Timeline of the Jawaharlal Nehru National Solar Mission The Ministry of New and Renewable Energy provides 70 percent subsidy on the installation cost of a solar photovoltaic power plant in North-East states and 30 percentage subsidy on other regions. The detailed outlay of the National Solar Mission highlights various targets set by the government to increase solar energy in the country's energy portfolio. The Mysore City Corporation has decided to set up a mega Solar power plant in Mysorewith 50% concession from the Government of India. ] The Maharashtra State Power Generation Company (Mahagenco) has made plans for setting up more power plants in the state to take up total generation up to 200 MW.] Delhi Metro Rail Corporation plans to install rooftop solar power plants at Anand Vihar and Pragati Maidan Metro stations and its residential complex at Pushp Vihar. Reeling under an acute power crises, the Government of Tamil Nadu has recently unveiled its new Solar Energy Policy which aims at increasing the installed solar capacity from the current approximate of 20 MW to over 3000 MW by 2015. The policy aims at fixing a 6% solar energy requirement on industries and residential buildings for which incentives in the form of tax rebates and current tariff rebates of up to Rs.1 / unit will be applicable to those who comply with the Solar Energy Policy. The policy also gives an option to those industries/buildings who do not want to install rooftop solar photo-voltaic systems to invest in the government's policy and be given the same incentives as explained above. Statistics Installed PV capacity (in MW) Year End

Total Capacit y

2010

161

2011

461

300

2012

1,205

744

2013

2,319

1,114

Yearly Installation

March-2014

2,632

313

March-2015

3,744

1112

India is densely populated and has high solar insolation, an ideal combination for using solar power in India. India is already a leader in wind power generation. In the solar energy sector, some large projects have been proposed, and a 35,000 km2 area of the Thar Desert has been set aside for solar power projects, sufficient to generate 700 GW to 2,100 GW. Also India's Ministry of New and Renewable Energy has released the JNNSM Phase 2 Draft Policy, by which the Government aims to install 10GW of Solar Power and of this 10 GW target, 4 GW would fall under the central scheme and the remaining 6 GW under various State specific schemes. The Electricity Act, 2003, paves way for an innovative approach to solve our country’s power problems. It has paved the way for a competitive environment; open access to existing transmission and distribution network to transmit electricity across regions; delicensing of generation, captive power and dedicated transmission lines; licensing of distribution and supply companies and the restructuring of State Electricity Boards. The Ministry of Power has mandated to promote cogeneration and renewable sources for Power generation under Nodal agencies and hence it will play a major role in mainstreaming renewable energy sector. The advantage or renewable resources includes their capacity to produce energy without producing carbon-based warming and polluting agents into the atmosphere. The financial cost of its applications is not always cheap but if the environmental costs of using fossil are ed for, renewable energy wins handsdown. There are also indirect savings on health and its costs as there are no harmful emissions. In the above backdrop, YOUR COMPANY NAME has decided to set up a 1/1000 MW/KW Solar Power Plant. This Detailed Project Report (DPR) brings out all technical details and overall costs justifying the selection of the project. The total power generation is envisaged to be 1050KW from Solar Photovoltaic Cell. It is a very important document that is required for Environmental Impact Assessment (EIA) studies, fixation of tariff, finalizing Power Purchase Agreement (PPA) and also for submission to Financial Institutions for obtaining project funding. The total project cost is expected to be RS. 709.00 Lakhs and the average cost of generation is expected to be Rs. 7.5/kWh (ASSUMED). rd

For this project, poly-crystalline technology based 3 generation Solar PV modules will be used. Along with this, highly efficient, photon-tested string inverters going to be integrated to the system. These technologies are the best in the industry. So, It’s clear that our project is not compromising with the quality of the materials and or the components which obviously led this project to success.

Client’ details Country

India

Location

SRIKAKULAM DIST

id

[email protected]

Person company

ABCXYZ

Purpose

Power generation & distribution to State utility grid

Site & Meteo Details Location coordinates Ambien t Relative humidity Daily Solar irradiation Atmospheric Pressure Wind Speed Earth temperature Height from sea

Project Details

10.5, 78.5 (assumed) 28. 5

27. 2 72.5%

25. 5

5.19 2 KWh/m /day 100.1 kPA Ma x 29. 6

abc

2.7 m/s Aver age 28. 8 10m

Mi n 26. 4

Type of installation Estimated array

peak power Shading consideration Grid voltage

Phase connection Grid frequency Available/require d area Safety level

Site Location/Layout

Groundmounted 1100KWp Shade-free 11KV 3-phase 50Hz 20000 2 m (apprx) IP65

Solar Irradiation KWh/m2/day

7 6 5

Solar Irradiation

4 3 2 1 0

31

Air & earth temperature-monthly

30 29 28 27 26 25 24 23

Air temperature earth temperature

Optimum Tilt Angles For Solar PV Array Adjusted by Months Jan 34°

Feb 26°

Mar 13°

Apr 0°

Ma 11°

Jun 14°

Jul 12°

Au 5°

Sep 6°

Oct 19°

No 29°

Dec 35°

Figures shown in degrees from vertical Winter

Spring/Autumn

Summer

80° angle

56° angle

104° angle

On the 21st December, the sun will rise 87° east of due south and set 87° west of due south. On the 21st March/21st September, the sun will rise 91° east of due south and set 91° west of due sou On the 21st June, the sun will rise 95° east of due south and set 95° west of due south.

Irradiation Data on different tilt angles (respect to horizontal 2

surface, KWh/m /day) Months January February March April May June July August September October November December Annual avg. 0

0

10 5.04 5.98 6.51 5.76 5.78 5.28 4.99 5.09 5.33 4.67 4.27 4.5 5.26

0

25 5.35 6.16 6.41 5.39 5.65 5.22 4.9 4.9 5.14 4.69 4.44 4.78 5.25

0

12 5.41 6.16 6.52 5.85 5.78 5.29 4.99 5.1 5.34 4.71 4.45 4.84 5.36

* Here, 12 angle at AM1.5 has been chosen as fixed south faced model for the project

Solar PV System Design System Overview SPV Array Peak Power No. of SPV strings Connection of PV modules in each string Inverter Inverter Type/Topology Total no. of Inverters Strings/Inverter

1082KWp 206 Series 20KW MPPT based 3 phase string Inverter MPPT & Transformer Less 53 4/1

Modular Components Components

Specification

Max Peak Power=250Wp Voc= 36V ;Vmp= 29V Isc= 9.25A ; Non-Modular Components Solar PV modules

Components Inverters Transformer SCADA/Moni toring System Circuit Breaker DC Disconnect Switch Gear

Distribution Isolator Cables

Electrical Specification 20KW, 3Phase &MPPT; Vmax= 800V 1250KVA Integrated with Remote Monitoring system to web based Inverter Busbar= 46A 3p; busbar/ box to transformer= 1600A 1000V,20Amps

Quanti ty 4326

Make

Quanti ty 53

Make

1 1 53 1 206

Rated voltage=12KV; Rated main busbar current(Max)=1 250A; SC NAwithstand capacity

1

Vmax= 12KV; Max cont. 2 DC Side= 10 mm AC Side=LT: 2 16mm & HT: 2 185mm

1

1

Solar PV Module Specification & Array Sizing Details Required Electrical Characteristics of SPV Modules Design criteria IEC-61853-1 Watt Peak

250Wp

VOC

37.20V

VMPP

30.10V

ISC

8.87A

IMPP

8.30A 15%

Module Efficiency/modu le areaTolerance Power

±2%

Technology

Si-Poly

No. of cells

60 cells in series

Required Temperature Co-efficient Characteristics o @ STC45 ± 2 oC NOCT ( C) Module Efficiency

-0.07 ± 0.01

Temp. Co-Eff. Of Pmax o (%/ C) Temp. Co-Eff. Of Voc

-0.43 ± 0.05

Temp Co-Eff. of Isc o (%/ C)

0.065± 0.05

Required Operating Condition Details: 1000V Maximum System Maximum Fuse Rating Limiting Reverse Current Operating Temp Range Max Static Loadfront(Snow+ Max Static LoadRear(wind)

15A 0

(-10 to 60) C 5500PA 2500PA

Model design parameters R shunt250 ohm R shunt (G=0)2100 ohm R series model0.29 ohm R series max0.37 ohm R series apparent0.47 ohm

-0.34 ± 0.05

PV Module Behavior at different irradiance level 2 2 PV Parameters @ 1000W/m @800 W/m PMPP VOC VMPP ISC IMPP Module efficiency Temperature coeff

15A

249.8.2W 37.2V 30.1V 8.87A 8.31A 15.54% 0 -0.43%/ C

200.6 W 36.8 V 30.2 V 6.64A 7.10A 15.32% 0 -0.43%/ C

@ 400 W/m 100.00 35.8V 30.1V 3.55A 3.33A 15.27% 0 -0.44%/ C

2

Solar PV Array Sizing & Connection Details 0 conditions At STC (25 C) Suggested array Size Actual Solar PV Array Size Peak of each SPV Watt module Total nos. of SPV module required Total nos. of strings Nos. of SPV modules in each string SPV connection in each string String voltage (VMPP) String current (ISC / IMPP) Connection of strings Array voltage (VOC / V MPP) current (ISC / IMPP) Array

At Avg. Ambient

1100 KWp 1082KWp 250Wp 4326

1100KWp 1100KWp 263Wp 4326

206 21

206 21

Series 609V 8.87A/8.3A Parallel 780V/635V 1830A/1710A

Series 630V 9.51A/8.82A Parallel 750V/620V 1960A/1816A

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Page 10

Detail Solar Inverter Specification & Design Details Inverter Type Quantity

String Inverter (MPPT) 53

INPUT (DC)

Max. Power Max absolute Input Voltage Start Voltage Nominal MPP voltage range Max Input Current per string Nos. of Independent MPP inputs/strings per MPP inputs

23KW 1000V 350V 490V-800V 41.5A 1/6

OUTPUT (AC)

Rated Output Power Max. Apparent AC Power Power Threshold Nominal AC Voltage/range AC Power Frequency/ range Max. output current Power factor at rated power Feed-In phases/connection phases Efficiency Max. Efficiency

20000W 20000VA 20W 3/N/PE;230/460V 50Hz 3x29A 1 3/3 98.7%

Protection Details

DC Disconnect DC Surge Arrester Protection Class Total harmonic distortion Operating Temperature range Noise Emission Self Consumption Cooling option Protection type Remote Monitoring System Interference & Communication Electrically Isolated relay output Status Display Inverter to inverter communication Anti-islanding protection Inverter connection details

Available Available I (as per IEC 62103)

Total nos. of inverter Nos. of strings per inverter Connection of strings/inverter Inter-inverter connection Inter-Inverter isolator

53 4 Parallel Parallel into Cu busbar Provided

<1.8% ◦ ◦ -25 -60 C <35dB <25W Forced Air-cooled IP65 (as per En 60529) With RS-485/Ethernet Available Available Available Available

Transformer Sizing Design Criteria Transformer type Cooling type Rated KVA High Voltage rating Low Voltage Rating Nominal impedance Impedance tolerance Nominal secondary amps Max SC withstand current HV connection LV connection Operating frequency Tap changer

IS-2026 / IEC-60076 Power transformer, core type with oil0 immersed ; 65 C winding temp rise ONAN(Oil Natural Air Natural) 1250KVA 11000V 460V 4.7% 7.5% 1250A 20KA/3s DELTA Wye 50Hz ±5% of full load capacity

Protective devices components

Specification

Quantity

DC Disconnects

String to inverter= 1000V, 15A; 2 pole (As per IEC-60947) Rated voltage=12KV; Rated main busbar current(Max)=1250A; SC withstand capacity = 25KA/3s Dynamic capacity= 50KA IP55 Inverter to Busbar= 60A 3p;

206

Switch gear

Circuit breakers (MCCB) (NOT required if Inverter has inbuilt protection)

busbar/ box to transformer= A 3p;

1

53 1

Main Isolator (HT side) Design criteria Operating frequency Nominal system voltage

IS-9921/IEC129 50hz ±3% 11KV

Max system voltage

12KV

Max continuous current Rated SC current for 3s

2500A 40KA

Rated peak withstand currentmicro (KA sec 1.2/50 lighting withstand Volts (KV peak) Rated 1 minute power frequency withstand No. of poles

63.5KA

Min creepage distance

320mm

To earth and isolating poles

Across the isolating distances

170

195

To earth and isolating

Across the isolating distances

75

85

3

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Page 12

Cable Sizing DC Side Cables (strings to inverter) Design criteria Cable material Single cable length per string to inverter Cross section per string Voltage drop Relative power loss reference to power temp. Max DC withstand

Max withstand current capacity Conductor type Insulation material

IEC-60811 & IEC-60216 Copper 70 ft 2 4 mm 0.18V 0.07% Normal Shortcondition circuite 0 d 0C 90 C 250 42KA/1sec Stranded XLPE

LT Cables (Inverters to busbur/distribution ) Design criteria Cable material Max Single cable length per inverter to box Cross section Voltage drop (3phase) Relative power loss reference to Max AC nominal power Max withstand temp

IEC-60228 & IEC-60811 Copper 60 ft 2 16 mm 0.46V 0.23% Shortcircuite d 0C 250

Normal condition 0 90 C

Max withstand current capacity Conductor type Insulation

2KA/1sec Stranded PVC

HT Cables (from distribution to feed-in point) Design criteria Cable material Cable length from distribution to feed- in point Cross section Voltage drop (total)

Relative power loss reference to Max AC power Voltage grade SC withstand current capacity Insulation

IEC-60502 Al 25 ft 2

L1 L2 L3

185mm 1.37V 1.37V 1.37V 0.57% 11KV(UE), heavy duty 26KA @1s XLPE

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Page 13

Line Losses Total cable Cable cross section Power loss @ nominal operation Relative power loss @ nominal operation

DC Side

AC Side

Total

8120 ft 2 4 mm 35 KW

3070 ft 2 16 mm +185 2 mm 5 KW

11180 ft 2 2 4 mm +16 mm +185 2 mm 40KW

0.07%

0.76%

0.83%

Busbar constructional Analysis Busbar material

Main busbar

Busbar insulation

Al alloy E91 E gradeinsulated Fully

Busbar length Earthing bus materials

Auxilury busbar Copper

Main Aux 3.5mt 0.75mt x 52 GS (IEEE std. 80/IEC-604391)

Earthing & Lighting Protection Design Criteria

IEEE Standard-80

Grounding System

Earth grid resistance Placing of earth electrode

Earth Electrode sizing Physical Parameters Material Min depth of earth pit Components grounding Lightning Protection Design criteria Placing Dimension

Less than 10 ohm Earth Pit

Heavy duty GI pipes, 32mm dia, 3mt long Galvanized Steel(GS), flat type 600mm Min 75x10mm GS strip As per IEC-62305 On the highest of array 40mm dia with 3m height (vertical air termination)

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Page 14

CIVIL WORKS Live Loads estimation of control room + building (as per IS 875:1987) parameter details Remarks 2

Roof load 1750 kg/ m Ground floor Control 18000kg/ load Office 5000kg/ 2 Piping 50 kg/ m 2 Electrical + 26 kg/ m Seismic loaddrainage Roof

As per IS-456 As per IS-456 IS-456 As per IS-456 As per IS-456 As per IS-456

Roof drain 6 heads Construction details Interwall Cement : 1:6 Interwall 230mm thickness Parapet walls Cement : 1:4 thickness 115mm Steel work

Reinforced bars will be provided as per IS 800:2007

PV Array mounting & constructional details PV tilted angle Mounting type Overall dimension Foundation Foundation grade Wind load Fixing type

Total Land required

0

2

13 (@1070 W/m /day) Ground mounted As per design Plain cement concrete 1:5:10 9.72 Km/hr SS 304 fasteners

5 acres

System Performance Analysis & Simulation

Solar Paths at site on monthly basis

Reference Incident energy in collector plane

Normalized production per installed KWp

Performance Ratio (PR)

Normalized Production & Loss factor

Daily System Output Energy

SPV Array Power Distribution

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Page 18

Overall Power plant performance Summery Total no. of PV modules 4326 (250Wp) Total nos. of Inverters 53 (20KW) Max DC input per 21KW Nominal PV power 1082 KWp Max. PV power output 1027 KWdc Nominal AC power 1060KWac Max operating power @ 962KWac Max operating power 1027KWac @Ambient Temp. Plant production 1655 MWh/year Specific production 1526KWh/KWp/year Normalized production 4.2 kWh/KWp/day Array losses 0.87 KWh/Kp/day Overall losses 0.22 KWh/KWp/day Performance ratio 0.80

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Page 19

Time line of the project

Design

Land acquisit ion

•Preparation of design & estimation of the plant •15 working days required.

•As per design requirement, proper land selection & acquisition processed. •Time required 1 month

•Power Purchase Agreement(PPA) with private power purchaser need to be finalized at a feasible rate. •Required time is 15 working days

PPA

DPR

•Preparation of Detailed Project Report including technical feasibility of the project prepared. •Time required 6 working days.

•Arrangement of finance/fund for the project from nationalized or private financing agency with significant interest rate and equity share will be finalized. •Required time for this stage is 1 month.

finance

•After finalizing PPA and arrangement of fund for the project, procurement work starts including preparation & finalizing of vendor selection, BOM, BOQ, order placing, follow-ups of delivery to site/warehouse. procurem •Estimated time for this step is 1 month. ent

•After the processing of procurement, first civil construction at the site starts for PV mounting structure set-up and control-room, istrative building. Finishing the civil works, PV installation & all electrical constru construction works including the Grid Evacuation will be processed. n •Estimated time for this whole work is 2 months. ctio

commis sio ing

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Page 20

•Commissioning of the plant by authorized govt. body or certified 3rd party will be done followed by Completion of project execution. •required time for this step is 6 working days.

n

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Page 21

Operation & Maintenance of Plant Why do we need an O&M for Solar PV power plant? As every plant needs a regular maintenance work to make it functional & in well-condition, so in this case also, a PV power plant also requires a sound & efficient operation & management team to perform all the work after plant commissioning. A detailed structure of O&M team has been provided here in a hierarchy model to demonstrate in a simpler way.

operation manager

Plant manager

maintenance Engineer (Mech)

Maintenance engineer(E&IE)

Technician1

Technician2

skilled labour1

skilled labour2

control room technician

Skilled labour1

Supply chain executive

skilled labour2

s executive

Financial Analysis & feasibility Initial Investment in of components’ cost & service charges Sl. No . 1. 2. 3. 4. 5.

Components/services

6. 7. 8. 9.

SCADA/RMS Project execution & Construction works Grid evacuation

Solar PV modules Solar inverters Transformer Protective devices Wires/Cables

Total cost (in 45,100,000 11,660,000 2,940,000 1,200,000 1,000,000 1,000,000 2,000,000 4,000,000 1,000,000 (assumed)

10.

Other official works

1,000,000

Total Project investment

Remarks 41rs/Watt peak 11rs/Watt peak From international From international vendor Considering IEC codes & ISO certified

Assumed because of having no sufficient data Subject to change as per rules 70,900,000 INR

Total expenses over the year for plant O&M and staffing = 2,000,000 This expense is considered for regular maintenance cleaning of PV array, checking the status of inverter, cable-fault checking, emergency maintenance & replacement of components and annual salaries of O&M team of the plant. Loan Interest rate is @12% over 70% of total project cost which shall be completed within next 7 years (the rest 30% as equity shares). Estimated time period Total Loan amount Interest rate EMI Monthly interest total Interest paid

7 years 49,630,000 12% 876,110 285,270 23,962,830

*all the amounts are considered in INR currency.

10 years 49,630,000 12% 712,050 298,460 35,815,600

Detailed Analysis of Installment, EMI, Interest of the 70% project finance/fund Sl. No. 1 ) 2 ) 3 )4 ) 5 )6 ) 7 ) 8 ) 9 ) 1 0 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0

Installme nts 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 26 27 28 29 30 31 32 33 34 35 36 37 38 39

EMI 0 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5

Monthly principle 0 379,80 5 383,60 3 387,43 9 391,31 4 395,22 7 399,17 9 403,17 1 407,20 3 411,27 5 415,38 7 419,54 1 423,73 7 427,97 4 432,25 4 436,57 6 440,94 2 445,35 1 449,80 5 454,30 3 458,84 6 463,43 4 468,06 9 472,74 9 477,47 7 482,25 2 487,07 4 491,94 5 496,86 4 501,83 3 506,85 1 511,92 0 517,03 9 522,21 0 527,43 2 532,70 6 538,03 3 543,41 3 548,84 7 554,33 6

Monthly Interest 0 496,30 0 492,50 2 488,66 6 484,79 2 480,87 8 476,92 6 472,93 4 468,90 3 464,83 1 460,71 8 456,56 4 452,36 9 448,13 1 443,85 1 439,52 9 435,16 3 430,75 4 426,30 0 421,80 2 417,25 9 412,67 1 408,03 6 403,35 6 398,62 8 393,85 3 389,03 1 384,16 0 379,24 1 374,27 2 369,25 4 364,18 5 359,06 6 353,89 6 348,67 4 343,39 9 338,07 2 332,69 2 327,25 8 321,76 9

4 1 4 2 4 3 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 6 5 6 6 7 6 8 6 9 7 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7 8 7 9 8 0 8 1 8 2 8 3 8 4 8 5

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84

876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5 876,10 5

559,87 9 565,47 8 571,13 3 576,84 4 582,61 3 588,43 9 594,32 3 600,26 6 606,26 9 612,33 2 618,45 5 624,64 0 630,88 6 637,19 5 643,56 7 650,00 2 656,50 2 663,06 8 669,69 8 676,39 5 683,15 9 689,99 1 696,89 1 703,86 0 710,89 8 718,00 7 725,18 7 732,43 9 739,76 3 747,16 1 754,63 3 762,17 9 769,80 1 777,49 9 785,27 4 793,12 7 801,05 8 809,06 8 817,15 9 825,33 1 833,58 4 841,92 0 850,33 9 858,84 2 867,43 1

316,22 6 310,62 7 304,97 2 299,26 1 293,49 2 287,66 6 281,78 2 275,83 9 269,83 6 263,77 3 257,65 0 251,46 6 245,21 9 238,91 0 232,53 8 226,10 3 219,60 3 213,03 8 206,40 7 199,71 0 192,94 6 186,11 4 179,21 4 172,24 6 165,20 7 158,09 8 150,91 8 143,66 6 136,34 2 128,94 4 121,47 2 113,92 6 106,30 498,60 6 90,83 1 82,97 9 75,04 7 67,03 7 58,94 6 50,77 4 42,52 1 34,18 5 25,76 6 17,26 3 8,674

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Page 24

Net Cash Flow/year Estimation (all amounts are in INR) Initial Investment 70,900,00 Expenses for O&M per year 2,000,000 Total amount paid/year for loan(7 10,513,320 years term considered) Tolerance factor 2% Total amount to be paid per year 12,763,600 Energy generated per year 1,655MWh PPA rate for next 12 years 7.5rs/KWh REC floor price 12,000rs/MWh (approx.) Gross cash flow through PPA 12,412,500 Gross cash flow through REC trading 19,860,000 Net Cash Flow (NCF) per year 21,759,180

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Page 25

NET CASH FLOW & PAY BACK PERIOD Now according to Discounted Cash Flow method (considering @10% DCF) years 1 2 3 4 5 6 7 8 9 10

Present value of rs.1 @10% 0.909 19,779,094.62 0.826 17,973,082.68 0.751 16,341,144.18 0.683 14,861,519.94 0.621 13,512,450.78 0.564 12,272,1 0.513 11,162,459.34 0.467 92,145,357.80 0.424 83,660,898.56 0.386 76,162,987.84

So, Pay Back Period= 6 years 1 month (approx.)

Most suitable vendors/suppliers of the project Solar PV modules

Inverter

Transformer

Switch gear DC Disconnect Circuit breaker

SCADA/RMS Cables

Isolator

1 . 2 . 3 .4 . 5 . 6 .1 . 2 . 3 .4 . 5 . 6 .1 .2 . 3 . 4 .1 . 2 . 1 1 .2 . 1 1 . 2 . 3 .4 . 1 . 2 . 3 .

Vikram Solar Waaree Energies Sova Power Canadian Solar Trina Solar First Solar Power One SMA Smart Power REFusol Delta Schneider Electric ABB Schneider Electric Ascott transformer Voltech Schneider Electric Megawin Schneider Electric Megawin ABB Draker Havells Finolex cables RR Kabels Anchors ABB Schneider Electric Megawin

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