Solar energy is one of the most promising energy alternatives of the new millennium. It is inexhaustible on the earth’s time scale, both as a source of light and heat. The sun is a source of renewable energy, and harnessing it as a source of both heat and light is one of the most promising energy alternatives for the future. Solar energy is important for preserving the environment, as it has many advantages over other energy sources, such as being non-polluting. It wasn’t long ago that fossil fuels were thought to be exhaustible, but this reality is already changing. One of the main characteristics of our society, at least from a practical and material point of view, is the ever-increasing demand for energy supplies.