The household power generation system generally consists of photovoltaic arrays composed of solar cell modules, solar charge and discharge controllers, battery packs, off grid inverters, DC loads, and AC loads. If the output power is AC 220V or 110V, an inverter needs to be configured. The photovoltaic array converts solar energy into electrical energy under illumination, and supplies power to the load and charges the battery pack through a solar charging and discharging controller; When there is no light, the DC load is powered by the battery pack through the solar charging and discharging controller. At the same time, the battery also directly supplies power to the independent inverter, which inverts the AC current and supplies power to the AC load.