I think a solar energy is still very popular at the moment. Many specialists say about the future of energy industry. Solar Energy is electromagnetic radiation (including infrared, visible, and ultraviolet light) emitted by thermonuclear reactions in the core of the sun. In a wider sense, solar energy is the source of all energy used by our civilization — with the exception of nuclear or geothermal energy, of course — as its indirect forms include hydroelectricity, ocean thermal energy, tidal energy, and wind energy. The answer is definitely YES; solar panels usually represent a worthy investment. On the other hand, you need to meet two basic requirements: don’t go for the cheap ones, as their efficiency is sometimes closing towards zero, and don’t waste energy unnecessarily. No matter how green the technology you use, there is no need to spend more electricity than necessary. If anything, it saves your money! I would like to recommend one good article about the solar energy.You can check
Solar Energy