Solar Energy, usually the radiant Energy of sunlight, is used in modern times to generate electricity. Since the formation of life on earth has lived mainly by the heat and light provided by the sun, and since ancient times, humans have also known to dry things by the sun as a means of preserving food, such as making salt and basking in salted fish.But with fewer fossil fuels, there is no interest in developing solar power. The use of solar energy has passive use of photothermal conversion and photoelectric conversion. Solar power is a new renewable energy source. Broadly speaking, solar energy is the source of much energy on earth, such as wind energy, chemical energy, potential energy of water and so on.
Solar lights are converted from solar panels into electricity. During the day, even on cloudy days, the solar panel collects and stores the energy it needs. Therefore, the sun produces energy, which is used to produce electricity. As a kind of safe and environment-friendly new energy source, solar energy is more and more important.