Detailed Project Report - Wapco India (P) Ltd

15KW Off Grid Solar Power Plant

Prepared by: - BGS Power Solutions Pvt Ltd,

Chennai -600091

Project DescriptionThe purpose of this project is to install Solar Photovoltaic (PV) 15 KW off grid solar power plant. This plant may be utilized to serve the needs of Wapco.

WABCO INDIA LIMITED, a majority owned subsidiary of WABCO Holdings Inc, has pioneered the manufacture of air-assisted and air brake systems for commercial vehicles in India.

Solar Power

With the fast depletion of the non-renewable energy resources, there is a tremendous thrust on generating renewable energy. Solar Energy has been identified as one of the driving forces for generating electricity. During the last two decades, the accelerated drop in silicon, which is the feedstock material for most panels, has made it possible for solar panels to move from space-based applications to generation of energy for consumption by the general populace.

The solar power industry is growing at a phenomenal rate globally with the US, Germany, Spain and China leading the way. Industry experts predict an annual growth rate of about 40 per cent for several years into the future. With escalating international oil prices and increasing concerns about global warming, solar power represents a strategic energy choice for the future for most of the countries currently dependent on imported energy sources.

Similar considerations apply in India as well. Further, there has been a rapid decline in the PV pricing in the last 2-3 months which has made a well-designed Solar power solution a better option, environmentally as well as financially to a DG (Diesel Generator Set) power. Due to a massive deficit in the power sector infrastructure and fuel supply use of DG has been growing rapidly in India. This has led to many issues including a rising oil import bill, loss of revenue due to subsidies for diesel and above all, increasing pollution in the country.

Solar PV (Photo-Voltaic) Technologies

There are two main PV technologies namely Silicon (mono-crystalline or poly-crystalline) or thin films (TF). The latter includes amorphous silicon and various chemistries from the CIGS (Cadmium, Indium, Gallium and Selenium) family of elements. Though TF panels have better thermal characteristics then Silicon based panels, their lack of long term record makes them a riskier alternative. Further due to their considerably lower power density requires a higher number of panels resulting in a higher space requirement and BOS costs. Poly-crystalline panels have better thermal characteristics compared to mono-crystalline panels hence are considered more suitable for our needs.

Meteorological and System Data (Ambattur, Chennai India)

Latitude 13°06'36" N

Longitude 80°10'12" E

System Size 15KW

Area of System 1500 square feet

Yearly estimated production for the 15 kW Power Plant

25375 KWH

Project Details Location Chennai, India

Latitude 13°06'36" NLongitude 80°10′ ESize (KW) 15 KW(DC)Module Type Poly Crystalline High EfficiencyInverters 15 KVA.

Project Stages The project will be executed in the following stages:

Electrical DesignA. This will be a 15 KW Solar PV system and will be a on Grid systemB. Deliverables will include the following drawings and documentation:

a. Site Layout b. Inverter DC Electrical Single Line Diagramc. AC Single Line Diagram and Detailsd. Electrical Wire and Conduit Schedule and Detailse. Inverter Conduit and Wiring Detailsf. DC String Chart drawings

Racking System InstallationOnce the feasibilities studies are completed, sturdy racking system will be installed on the ground which will be able to support the panels. This is a standard Ground Mount racking system.

PV Panels InstallationPV Panels will be installed on the racking system at an angle facing the southern direction.

ConnectingOnce the PV Panels have been installed, the system will be completed after adding the inverter.

Key Project RequirementsThe following are the key requirements for the project to be developed.

PermitsAll associated permits required for the project will be the responsibility of the project owners and will be provided prior to the project commencement or at a

mutually agreed point in time. All Clearance and Permits required for the transmission Line shall be carried out by Client, we have not included cost of the Transmission Line.

Project Task OwnershipAction Owner

1 Define Requirement BGS Power Solution Pvt Ltd

2 Proposal BGS Power Solution Pvt Ltd

3 Bill of Materials (BOM) BGS Power Solution Pvt Ltd

4 Contract/Finance Client

5 Design Document BGS Power Solution Pvt Ltd

6 Procurement BGS Power Solution Pvt Ltd

7 Installation BGS Power Solution Pvt Ltd

8 Inspection BGS Power Solution Pvt Ltd

9 Commissioning BGS Power Solution Pvt Ltd

10 Operational Handover BGS Power Solution Pvt Ltd

Project HandoverAt the end of the commissioning process, the project will be handed over as per the following protocol. Customer will sign-off on all of the following documents to complete the handover based on pre-established criteria in the contract document.

- Final KWH output document prepared by BGS Power Solution Pvt Ltd.

- Final Inspection and walk through document prepared by BGS Power Solution Pvt Ltd

- Final BOM and engineering drawings prepared by BGS Power Solution Pvt Ltd

- Final training and operation document prepared by BGS Power Solution Pvt Ltd

- Final sign-off to conclude the project handover by BGS Power Solution Pvt Ltd

Technical Specifications

Technical Specifications for a 15KWp (DC) Installation

This system will require a space of 1500 SQUARE FEET of Roof top to install. It is imperative that there is no potential for shadows as that will impact the performance of the panels.

Solar Photovoltaic (PV) Modules

Description TypeManufacturer Shan SolarModule Type PolycrystallineModule Part Number 3PSS60 245Module Weight 20 KgModule Dimensions 1660 x 990 x 50.3 mmModule Nominal Power 245 Watts peakNumber of Modules Site and Mounting plan dependent

Shan Solar Modules are certified to CEI/IEC 61215: 2005 standard and conform to Safety Class IEC 61730 standard for 1000VDC applications and EWG guideline

89/932 (CE). Shan Solar is in compliance with the International Quality System Standard ISO 9001:2000.

Solar Power conditioning Unit

Delta Solvia 15 TL Grid Tie Inverter Technical Specification

Rating(KVA) 15Output Wave Form Sine waveDC Input Voltage 240VDCArray Input 220-400VDistortion (THDv) <3%Output Frequency 50 Hz +/- 0.5 Hz variationWave form Pure SineOutput voltage 400V AC ± 2% (3phase)Output Regulation ± 2%Cooling Fan ForcedInverter Type Bi directionalInverter Efficiency >93% at full loadSleep Mode Provided (selectable by switch)Protections Over load, Short ckt. & Over heat.No Load Consumption <2.5%Overload Capacity 150% for 1 minute and 200% for

10 secondsLCD Display Date & Time, PV Voltage, PV

Current, PV Power,Inverter output Volt. , Output Current, Output Power,

. Solar Accumulated KWh & Grid Volt

Indication(LED) Inv on, over load, charging, charged & DC high

Grid Mains Mode

AC Input Voltage 400V ,+20% / -20%AC Input Frequency 50 Hz ±3 HzSolar Charge ControllerMPPT Charge controllerCharging PV Imax (Amp) 40 A

Others Others

Operating Temperature -40 ... +85 °CStorage temperature -25 to 550 C.Enclosure Protection IP 20Altitude(ASL) 1000M (without de-rating)Operating Humidity Up 95% ,non condensing

Electrical Wiring

There are various types of wirings that are utilized on site. These vary from low to medium voltage DC and medium to high voltage AC. In each of the cases we use the best all weather and where required UV protected cables. The key is to keep our resistive losses (I2R) to the minimum for maximum efficiency.

Fault Protection

Our engineer team designs the system with proper grounding including double isolation disconnects where required and fully protected system. Our system includes protection of the AC equipment against lightening using arrestors etc.

Monitoring

This is an optional feature that we provide. Based on the accessibility many of the metrics related to performance including output and fault logs can be made available remotely. It is possible for people from across the world to monitor the performance and display related graphics on their laptops/desktops or similar device.

Product and Performance Warranty

Product GuaranteeAll products guaranteed against manufacturing defects for a period of five years.

System WarrantyThis is provided as follows.

Solar Modules 10 years of limited warranty provided by the manufacturer

Inverters 5 years Manufacturer Provided

Performance Guarantee* 12 years of 90 % power output25 years of 80 % power output

PV panel wiring diagram