A home battery takes your energy independence to a new level. Not only can you use stored solar energy during the night, but also during power outages. Protect and power your home without relying on the electric utility. Powerwallis a battery that stores energy, detects outages and automatically becomes your home's energy source when the grid goes down. Unlike gasoline generators, Powerwall keeps your lights on and phones charged without upkeep, fuel or noise. Pair with solar and recharge with sunlight to keep your appliances running for days.