Terli power solar system not only has the function of the solar power generation system, but also has the complementary function of the utility. When the main power is turned off, the solar system can automatically switch to use the solar energy in the battery to run the load, when the solar energy is insufficient and the power goes out, it will automatically switch to the main power and connect with the grid to use the main power. Charge the battery at the same time. It is very suitable for home, school, office, farm, hotel, government, factory, airport, supermarket.