19-05-2012, 02:37 PM
Solar power in India and world
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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.(1)
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. According to a 2011 report by GTM Research and Bridge, 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".(1)
CURRENT STATUS:-
clear, sunny days in a year, India's theoretical solar power reception, on only its land area, is about 5 Petawatt-hours per year (PWh/yr) (i.e. 5 trillion kWh/yr or about 600TW). The daily average solar energy incident over India varies from 4 to 7 kWh/m2 with about 1500–2000 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.(1)
Installed capacity(1) :-
The amount of solar energy produced in India is less than 1% of the total energy demand. The grid-interactive solar power as of December 2010 was merely 10 MW. Government-funded solar energy in India only accounted for approximately 6.4 MW-yr of power as of 2005. However, as of October 2009, India is currently ranked number one along with the United States in terms of solar energy production per watt installed.(1)
Key Take-aways from the India Solar PV (4)
• The top five states in India for solar PV potential are respectively Gujarat, Rajasthan, Maharashtra, Tamil Nadu and Andhra Pradesh (4)
• Under the Jawaharlal Nehru National Solar Mission (JNNSM), India is expected to reach a total solar installed capacity (both PV and CSP) of 20,000 MW and a total electricity generation of 25-30 TWh per year by 2022. (4)
• Capital cost for solar PV power plants with crystalline silicon is likely to be about Rs 10 crores per MW by end 2013 when phase II of the mission is implemented. (4)
• A 1MW solar PV power plant can generate about 1.4-1.6 million units (kWh) of electricity per year depending on the location. (4)
• According to MNRE, the cost of power generation from solar PV is likely to be competitive with grid tariff by 2017 (“grid parity”).