Solar Energy is about harnessing the power of the sun to produce energy.
Considered as a renewable energy source because it will exist as long as the sun, estimated to be another 4.5 billion years. Considered as a clean energy because it does not produce pollutants or byproduct harmful to the environment. In ancient times the use of solar energy was limited to drying and heating cause by direct contact. In early 1950s solar energy was also used as power source. But with technology advancements, solar energy is moving to the forefront as a potential alternative to fossil fuels.
Currently solar energy is produced primarily through the use of the solar cell, also known as photovoltaic cells by placing the cells in direct sunlight. Sun hits the cells causing a chemical reaction that creates an electric current. This current is then turned into electricity.