This article sent by above aunties from UK. They want to tell us about Solar Energy. They ask, do you know about Solar Energy and what are the benefits of this energy in our lives. They writes, as per Wikipedia; Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on earth. Only a minuscule fraction of the available solar energy is used. Solar power is generated through the use of solar panels. These are silicon sheets placed together with electric wiring attached in order to siphon off the energy they generate.
When direct sunlight hits the panel, the incoming photon from the sunlight knocks an electron from the panel loose. This can create a motion of electrons, or a current. In this way the panel is able to produce energy through sunlight. Solar power can often be seen in many home-sized devices, but it is also used on a large-scale. Thermal plants often use the sun's energy by concentrating heat on a specific area. Once the concentrated heat reaches a certain level, it can be used to boil water and power a steam turbine that generates energy. There is no limit to solar energy. It is available everywhere and will never run out. While the decline in fossil fuels such as coal and oil cause rising prices and even wars, power from the sun will always be freely available as long as there is still life on the planet.
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