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DMPQ: Write in brief on non-conventional sources of energy

RAS/RTS Prelims and Mains Exam Preparation

Wind Energy
India‘s wind power potential has been assessed at 48500 MW. The current technical potential is estimated at about 13 000 MW, assuming 20% grid penetration, which would increase with the augmentation of grid capacity in potential states. The state-wise gross and technical potentials are given below India is implementing the world’s largest wind resource assessment program comprising wind monitoring, wind mapping and complex terrain projects.

Hydro Energy
Hydro power is the largest renewable energy resource being used for the generation of electricity. The 50,000 MW hydro initiatives have been already launched and are being vigorously pursued with DPRs for projects of 33,000 MW capacity already under preparation. Harnessing hydro potential speedily will also facilitate economic development of States, particularly North-Eastern States, Sikkim, Uttaranchal, Himachal Pradesh and J&K, since a large proportion of our hydro power potential islocated in these States. In India, hydro power projects with a station capacity of up to 25 megawatt (MW) each fall under the category of small hydro power (SHP).

Solar Energy
India is a solar rich country. India is a country near the equator – which means that given its geographical location, it is subject to a large amount of solar radiation throughout the year. India is also, according to area, the 7th largest country in the world.

The average solar radiation received by most parts of India range from about 4 to 7 kilowatt hours per meter square per day, with about 250-300 sunny days in a year. As can be seen from the solar radiation map above, the highest annual solar radiation is received by Rajasthan (desert area) and the lowest by the North eastern states of India.

Biomass energy
Globally, India is in the fourth position in generating power through biomass and with a huge potential, is poised to become a world leader in the utilization of biomass. Biomass power projects with an aggregate capacity of 773.3 MW through over 100 projects have been installed in the country. For the last 15 years, biomass power has become an industry attracting annual investment of over Rs. 1,000 billion, generating more than 09 billion unit of electricity per year. More than 540 million tons of crop and plantation residues are produced every year in India and a large portion is either wasted, or used inefficiently.

Energy from Wastes: The rising piles of garbage in urban areas caused by rapid urbanization and industrialization throughout India represent another source of nonconventional energy. An estimated 50 million tones of solid waste and approximately 6,000 million cubic meters of liquid waste are generated annually in the urban areas of India. Good potential exists for generating approximately 2,600 MW of power from urban and municipal wastes and approximately 1,300 MW from industrial wastes in India. A total of 48 projects with aggregate capacity of about 69.62 MWeq have been installed in the country thereby utilising only 1.8% of the potential that exists.

Biofuels: The GOI recently mandated the blending of 10 percent fuel ethanol in 90 percent gasoline. This mandate as created an approximately 3.6 billionliter demand for fuel ethanol in blend mandate to the entire country. This significant demand growth creates a tremendous manufacturing opportunity for the fuel ethanol industry seeking to expand its investments internationally

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