Solar energy is one of the most important and prominent sources of renewable energy, which is the conversion of solar rays into electricity through photovoltaic solar cells. This is because it is clean energy and saves electricity. Each spot on the surface of the earth receives during one year a certain amount of light from the sun, which varies from one part to another. Usually one part of the earth receives less sunlight than another part, and these amounts of light are called photovoltaic radiation or solar radiation, Which is converted into solar energy by some modern technologies that capture it, in order to reuse and recycle it as different sources and forms of useful energy. In this article, we will talk about solar energy and its role in generating electricity.