Photovoltaic power generation is based on the principle of photogenerating volt effect, using solar cells to directly convert solar energy into electricity. Whether it is independent use or power generation, photovoltaic power generation system is mainly composed of solar panels (components), controller and inverter, they are mainly composed of electronic components, do not involve mechanical parts, so photovoltaic power generation equipment is very refined, reliable and stable long life, easy installation and maintenance. In theory, photovoltaic power can be used for anything that needs power, from spacecraft to household power。