The future of fusion research has increased the importance of "renewable" energy sources. Among the most important of these sources are hydroelectric, solar, and wind. As you will see, renewable energy sources' main assets are their environmental cleanliness and their virtual inexhaustibility. Major drawbacks, however, are limited energy production. In most cases not suitable for large-scale power generation as well as relative costliness to build and maintain. In light of diminishing fossil fuels, however, renewable energy may end up as the energy of choice for the 21st century. There are a few types of renewable the sun is the sores of all energy. It sends energy in all directions. It is about 150 million km from earth. A large number of energy comes from the sun at the form of light. The temperature of the center of the sun is about 15,000,000 degree Celsius. At this temperature nuclear reactions are taking place the whole time and this are the whole of sun's energy. The sun does not shine one place all the time. There are differences between the amounts of energy reaching the earth's surface in different country. In the sunnier parts of the world sunlight is an important source of energy.
Solar power is one of the cleanest methods of energy production because solar panels simply convert the energy of the sun into energy mankind can use, there are no harmful byproducts or threats to the environment.
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