Photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to directly convert solar energy into electrical energy. The solar photovoltaic system consists of three main parts: solar panels (components), controllers, and inverters. They are mainly composed of electronic components and do not involve mechanical parts. Therefore, the photovoltaic power generation equipment is extremely refined, reliable, stable, and has a long service life, and is easy to install and maintain. What are the types of solar photovoltaic power generation systems? Solar photovoltaic power generation systems are divided into off grid photovoltaic power generation systems, grid connected photovoltaic power generation systems, and distributed photovoltaic power generation systems.