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| Types of Non-Conventional Energy Resources |
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| Sun is the biggest source of non-conventional energy. Energy is in the form of photons. India receives abundant sunlight for about 250-300 days in a year. Conversion of solar energy to electric energy and thermal energy takes place mainly by solar thermal pathways and through photovoltaic cells. Solar energy is mainly used in solar heaters, solar dryers and solar cells. Nowadays, in most of the big cities, traffic lights are operated by solar energy. |
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| Electricity is obtained from flowing water. The flow of water is checked by building a dam. The water from the dam is allowed to flow through the tunnels at a high pressure. Turbines convert the potential energy of the water into electricity. About 23,800 MW of energy is generated by hydel power in India. But the problem with hydel power is that it requires construction of big dams, these dams change the ecological balance thereby, posing some environmental problems. In order to overcome this problem, mini hydel or micro hydel projects can be built on small streams or canals and they are more convenient when compared to mega hydel power projects. |
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