Photovoltaic solar energy is a non-polluting source of energy. Modular, its components lend themselves well to innovative and aesthetic use in architecture. e e e Algeria&#39;s energy strategy is based on accelerating the development of solar energy. The government plans to launch several solar photovoltaic projects with a total capacity of approximately 800 MWp by 2020. Other projects with a capacity of 200 MWp per year should be carried out over the period 2021-2030. e Solar thermal energy