2021-09-10 Household photovoltaic systems generally consist of photovoltaic components, solar controllers, batteries, inverters, and loads. Photovoltaic components convert solar energy into electrical energy when there is light, and use the solar controller to supply power to the load and charge the battery pack at the same time; When there is no light, the battery pack supplies power to the DC load through the solar controller, and the battery also needs to be inverted into AC power through the inverter to supply power to the AC load.