Scope of Solar Thermal Power Plants in India

Topics: Solar thermal energy, Photovoltaics, Nuclear power Pages: 9 (3026 words) Published: October 29, 2012

U. Mohamed Razik Ali

U. Mohamed Razik Ali (UG student)
E.Praveen (UG student)

Now-a-days the importance of electrical energy is very severe, that no one could live without it. In such a condition, in India and especially in southern India there is a great demand for electricity. This article refers to such a problem and also gives a solution .Moreover calculations based on the solar potential in India and the possibilities of constructing Solar Power Plants in India is also discussed here. Some methods for storing the huge potential of solar power and the technologies involved in it are also prescribed. The methods involve the collector systems. Some collecting systems are parabolic trough system, power tower system, parabolic dish systems and solar chimneys. Introduction

Energy is considered a prime agent in the generation of wealth and a significant factor in economic development. Limited fossil resources and environmental problems associated with them have emphasized the need for new sustainable energy supply options that use renewable energies. Solar thermal power generation systems also known as Solar Thermal Electricity (STE) generating systems are emerging renewable energy technologies and can be developed as viable option for electricity generation in future. This paper discusses the technology options, their current status and opportunities and challenges in developing solar thermal power plants in the context of India.

Subject Terms: solar energy, India’s scenario, collector system, parabolic trough, parabolic dish, tower system.

Solar energy potential
India is located in the equatorial sun belt of the earth, thereby receiving abundant radiant energy from the sun. The India Meteorological Department maintains a nationwide network of radiation stations, which measure solar radiation, and also the daily duration of sunshine. In most parts of India, clear sunny weather is experienced 250 to 300 days a year. The annual global radiation varies from 1600 to 2200 kWh/m2, which is comparable with radiation received in the tropical and sub-tropical regions. The equivalent energy potential is about 6,000 million GWh of energy per year. Figure 1 shows map of India with solar radiation levels in different parts of the country. It can be observed that although the highest annual global radiation is received in Rajasthan, northern Gujarat and parts of Ladakh region, the parts of Andhra Pradesh, Maharashtra, Madhya Pradesh also receive fairly large amount of radiation as compared to many parts of the world especially Japan, Europe and the US where development and deployment of solar technologies is maximum.

India’s power scenario
India’s current electricity installed capacity is 135 401.63MW. Currently there is peak power shortage of about 10 % and overall power shortage of 7.5 %. As of January 2012, one report found the per capita total consumption in India to be 778 kWh. India currently suffers from a major shortage of electricity generation capacity, even though it is

the world's fourth largest energy consumer after United States, China and Russia.The International Energy Agency estimates India needs an investment of at least $135 billion to provide universal access of electricity to its population. In a May 2011 report, India's Central Electricity Authority anticipated, for 2011–12 year, a base load energy deficit and peaking shortage to be 10.3% and 12.9% respectively. The peaking shortage would prevail in all regions of the country, varying from 5.9% in the North-Eastern region to 14.5% in the Southern Region. The 11thplan target is to add 100,000MW by 2012 and MNRE has set up target to add 14500 MW by 2012 from new and renewable energy resources out of which 50MW would be from solar energy....
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