The Sigenergy SigenStor is a modular home battery system that combines a solar inverter, a battery inverter and energy management in one stacked unit, with up to six battery modules giving a maximum of 52.56 kWh of usable storage per stack. Its biggest strength is flexibility, because you can mix module sizes and add storage years after installation. Its biggest catch is that the inverter rating is fixed, so the one decision you can't easily change later is the one to get right first.








