Battery

Battery Backup Size Calculator

Size a home battery backup system for your essential loads and desired backup duration.

Daily energy use

25 kWh

Critical load percentage

40 %

Backup days needed

1 days

Battery capacity needed14 kWh

Usable energy12 kWh

Critical daily load10 kWh

Est. battery cost$11,073

This is a manageable battery size for most homes.

Run our free AI Home Energy Advisor for custom recommendations based on your home.

Estimates are preliminary. Savings are not guaranteed. QuigSolar is an independent advisor, not a utility company or installer.