The GoodWe SBP series is the world’s first AC-coupled battery storage retrofit solution with UPS function for both single-phase and three-phase systems. It can effectively upgrade any existing string inverter system by adding a backup battery. Capable of being grid-interactive, it allows users to store surplus power and sell it back to the grid when demand peaks and the price of electricity is at its highest. With UPS-level switching function (switching time <10 ms), the GoodWe SBP provides uninterruptible power supply to inductive loads such as air conditioners or refrigerators.