(1)PV panels (solar panels, solar panels, solar photovoltaic modules) absorb light energy and convert the light energy into electrical energy. The commonly used materials for PV panels include monocrystalline silicon, polycrystalline silicon and amorphous silicon, with the conversion efficiency of monocrystalline silicon being 14-20%, polycrystalline frog being about 13%, and amorphous frog being 8-10%.

(2) Power storage equipment. At present, power storage equipment of off-grid power generation system is mainly to avoid maintenance of batteries, which can store the electric energy generated by PV panels.

(3) Charging and Output Control Controller: The function of the controller is to control the whole system to work stably and safely.

(4) other mechanical equipment.