Concentrating solar uses the power of the sun to make electricity. It works by using mirrors or lenses to focus the sun's rays onto a small area and then using the heat from the sun to turn a turbine and generate electricity. This type of solar energy is different from the traditional way of using solar energy, which is to convert the sun's rays directly into electricity through solar photovoltaic cells. With concentrating solar, the sun's energy is stored in a tank of hot liquid, like a big thermos, and then used to turn a turbine and make electricity when electricity is needed.