Battery Economics Preview

Screen whether a home battery is mainly a resilience purchase, a TOU bill-arbitrage play, or a strong solar-pairing upgrade before you ask installers for quotes.

Battery tool trust layer

EconomicsDirectional

Best for screening, not final underwriting.

State contextFallback context

Used to frame solar-pair and grid context only.

Gear matchesHome battery catalog live

Matched by capacity to your selection. Portable backup shown for smaller sizes.

Battery assumptions

ZIP codeBattery size

13.5 kWh

Installed costCritical load during outage

1.5 kW

Outage hours you care about

6 hrs/year

Time-of-use spread

10 cents/kWh

Run the battery preview

Wattfull will estimate backup coverage, directional arbitrage value, a rough payback, and what kind of backup product fits the load you actually care about.