Free Tool
Battery Sizing Calculator
Estimate the usable battery capacity you need to shift evening loads from peak rates or to run essential circuits through an outage.
Your typical kWh between 4pm and 11pm — check your bill or monitor.
Typical home battery modules range 5–15 kWh useful.
Recommended battery
Capacity
30.0 kWh
~3 module(s) @ 10 kWh
Strategy
Peak shifting
Covers your evening
Sizing is a planning estimate only — see the methodology above. A qualified installer sizes the final system from your real load profile.