How Many kWh of Battery Backup Does a House Need?
Compare 5–30 kWh home batteries, calculate backup power for 8–72 hours, and see how much storage your house needs based on appliances and square footage.
Home Backup Doesn't Have to Be Difficult
Category
Compare 5–30 kWh home batteries, calculate backup power for 8–72 hours, and see how much storage your house needs based on appliances and square footage.
[Infographic Included] See what a 2,000-watt portable power station can run, with realistic runtime estimates for appliances from sump pumps to air fryers and refrigerators.
Learn how to size a portable power station for a refrigerator using battery capacity, compressor surge, daily energy use, and realistic outage runtime.
A practical guide to calculating portable power station runtime, including usable capacity, inverter losses, variable appliance loads, cold-weather performance, and solar recharging.