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Essay On Solar Energy

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1.1 INTRODUCTION:
Solar energy has the greatest potential of all the sources of renewable energy. If only a small amount of this form of energy could be used, it will be one of the most important supplies of energy specially when other sources in the country have depleted energy comes to the earth from the sun. This energy keeps the temperature of the earth above than in colder space, causes current in the atmosphere and in ocean. It causes the water cycle and generates photosynthesis in plants. The solar power where sun hits atmosphere is 1017 W. The solar power on the surface of earth is 1016W. The total worldwide power demand of all needs of civilization is 1013W. Therefore, the sun gives us 1000 times more power than we need. If we can use 5% of this energy, it will be 50 times what the world will require. Electrical Energy that can be produced from the solar energy by photovoltaic solar cells. SPV cell converts the solar energy directly to electrical energy. The most significant applications of SPV cells in India are the energization of pump sets for irrigation, drinking water supply and rural electrification covering street lights, community TV sets, medical refrigerators and …show more content…
Earlier however the use was restricted to utilization of Solar Energy for basic drying or heating purposes. It was soon realized that Solar Energy can be put to better use by utilization of sophisticated system for Water heating used at domestic level, or Industrial level, drying etc. The use of Solar Energy for electrical power generation dates back to Space age when Solar Photo Voltaic cells were used to power Satellites orbiting around the Earth. With passing time it was realized that Solar Photo Voltaic can be used as a Power source not just for satellites but as also the cleanest and greenest power source on Earth. Solar Energy thus started being used not just for conventional purposes such as heating but also power generation

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