controller and an 1000W bidirectional inverter（1000W for input and off-grid output, 800W for on-grid output), SolarFlow 800 Pro 2 stores surplus solar energy (when a battery is installed) during the daytime and powers your home at night, reducing overall energy costs. 

With time-of-use pricing, SolarFlow 800 Pro 2 automatically switches to battery power during peak-rate periods and recharges the battery during off-peak hours (such as overnight) to enable self-powered operation during high-demand daytime hours. This dual approach ensures continuous savings while maintaining energy independence.