The need for an alternative source of energy was never as important for mankind as it is today. Fossil fuels, which are being used since thousands of years, are about to get exhausted. More importantly, they are contributing to various hazards on the planet, prominent ones being global warming and pollution. In such a scenario, searching for an alternative source of energy, which is a clean, efficient and renewable energy, has become the utmost priority for mankind. One such source of energy is solar energy. Before we move on to how solar energy works, we need to know what is solar energy and whether it's the right alternative source of power.

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Energy from the Sun The sun has produced energy for billions of years. Solar energy is the sun

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Due to their cylindrical shaped solar collectors, evacuated tube solar collectors are able to make an efficient and maximum utilization of solar energy. What takes the evacuated tube solar collectors a step further than their other counterparts, is their design. These appliances are manufactured with rows of parallel glass tubes for maximum efficiency. Industrial and commercial sectors utilize evacuated solar tube collectors. They are preferred for domestic heating as well.

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Photovoltaic Cells Convert Sunlight into Electricity A photovoltaic cell, commonly called a solar cell or PV, is the technology used to convert solar energy directly into electrical power. A photovoltaic cell is a nonmechanical device usually made from silicon alloys.

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Solar thermal power plants use the sun's rays to heat a fluid to very high temperatures. The fluid is then circulated through pipes so it can transfer its heat to water to produce steam. The steam, in turn, is converted into mechanical energy in a turbine and into electricity by a conventional generator coupled to the turbine.

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