Rooftop Solar Photovoltaic System

40 kWp Solar Photovoltaic Plant

Shubham Gaurav11115097B-Tech, EEIIT Roorkee

ABOUT SHRI SHAKTI ALTERNATIVE ENERGY LIMITED, HYDERABAD

0Developing the 100MW Rajasthan Solar Processing Zone

0 Judged as one of the most promising clean energy investment opportunities in Asia.

0Completed several consultancy projects for the World Bank, ADB, KWF, UNIDO, UNICEF

ROOFTOP PV SYSTEM

0 Installed on rooftops of residential or commercial buildings

0Can cope up with substantial growth in peak electricity demand

0Can be with or without grid interaction.

0Create economic value for unutilized rooftops and are not faced with the issues of land availability

OBJECTIVE OF INSTALLING ROOFTOP SOLAR PV SYSTEM0On national level, reduces requirement of land for

addition of solar capacities.

0It reduces the dependency of the consumer on grid power and mitigates the dependency on diesel generator.

0To provide access to electricity to all rural households especially where grid connectivity is not a cost effective solution. .

COMPONENTS REQUIRED FOR ROOF TOP SOLAR PV SYSTEM

0Solar PV Modules0 Inverter0Charge Controller0Batteries0Mounting Structures

0Power and Control Cables

0Meters and Monitors0 Junction Boxes and

Combiner Boxes0Protection Equipments

DIFFERENT TYPES OF ROOFTOP SOLAR PV SYSTEMS

GRID-CONNECTED SYSTEM

HYBRID SYSTEM

OFF-GRID SYSTEM

APPROACH AND METHODOLOGY TO DEVELOP A ROOFTOP PV PLANT

1. SITE SURVEY2. LOAD SURVEY3. SHADING ANALYSIS4. SOLAR RADIATION RESOURCE ASSESSMENT5. PRELIMINARY DESIGN6. DETAILED DESIGN7. SYSTEM OUTPUT8. BILL OF MATERIALS9. PROCUREMENT10. IMPLEMENTATION OF THE PROJECT11. OPERATIONS AND MAINTENANCE12. PRICING OF SOLAR SYSTEM

40kWp Grid Interactive Rooftop PV Power Plant at IHM,Shri Shakti, Hyderabad

0 FEATURES OF THE PLANT0 40kWp Grid Connected System

0 Located at Begumpet, Hyderabad

0 800 sq. m. available vacant rooftop area

0 Implementation in 2 parts: 18kWp(fixed) and 22kWp(with tracking)

0 Annual Energy Generation: 70MWh

LOCATION0Adjacent to Hotel Fortune Select Manohar, Begumpet,

Hyderabad0Old Rajiv Gandhi Airport in the North0Metrological Observatory, Hyderabad in North East

SITE DESCRIPTION

• Rooftop has a skylight system with dome like structures for natural lighting.

• The skylight has an area of around 330 sq meters .

• Could be used for SPV installation of 18kWp without affecting the natural lighting

• Rest of the terrace has around 475 sq meters of vacant area which could be used for SPV installation of 22kWp.

TOOLS/INSTRUMENTS USED FOR ANALYSIS OF SPV SYSTEM

0SEAWARD PV 150 SOLARLINK KIT

0SOLMETRIC SUNEYE 210 SHADE TOOL

0PVSYST Simulation Software

0TRACKING SYSTEM WITH PV BOOSTER MIRRORS

ARRANGEMENT 18kWp System:

22kWp System:

INTEGRATION OF PV POWER WITH GRID

0The output power from SPV would be fed to the inverter0 In case of grid failure, or low or high voltage, solar PV

system shall be out of synchronization and shall be disconnected from the grid.

0The out put power from inverter would be fed to the panel of 320 KVA DG set with changeover switch at IHM

0On the week end and other holidays, almost the entire energy from the SPV module would be fed into the grid.

METERING SCHEME

0An Import/Export meter will be installed for metering for billing purpose

0Would also serve the purpose of registering the net export and import to the grid.

0A meter would also be installed at the output side of the inverter to register the energy output from the SPV power plant.

IMPLEMENTATION OF WORK0Plant in primary stage0Equipments have been procured0Full Implementation yet to be done

REFERENCES[1]. http://www.mnre.gov.in/solar-mission/jnnsm [2]. http://www.nrel.gov/solar [3]. http://www.ssael.co.in [4]. Garg & Prakash.(2000). Solar Energy: Fundamentals and Applications: Tata McGraw-Hill Education [5]. EfficientCarbon.(2014).Net Metering and Rooftop Solar, Retrieved from http://efficientcarbon.com/resources/whitepapers[6]. http://www.pvresources.com [7]. http://cwet.res.in/web/html/departments_srra.html