Battery-Only Payback Calculator
At what price does a home battery actually pay for itself? Get an honest answer with state-specific rates, backup value, incentives, and Virtual Power Plant revenue — for homeowners with or without solar.
Your Situation
Heads up: A battery without solar has limited upside. It can still earn through time-of-use arbitrage, outage protection, and Virtual Power Plant programs — but it can't capture free solar charging. The math below reflects that honestly.
Enter state or ZIP (we'll look up the rest)
e.g. 13.5 for a Powerwall
Leave blank to estimate at ~$1,000/kWh
Optional — refines solar-charging estimate
Typical: 1 (full cycle/day)
Hours of essentials coverage
Your Results
Simple Payback
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Years to recover net cost
10-Year Net Savings
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After net cost (3%/yr rate escalator)
Break-Even Price
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Max you should pay (10-yr)
VPP Revenue
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Per year, if enrolled
Estimated Annual Savings
Where your battery's yearly value comes from
| Component | How it's calculated | Annual Value |
|---|---|---|
| Total Annual Savings | — | |
Cost After Incentives
Gross Cost
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Federal Credit (30%)
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State Incentive
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Net Cost
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The 30% federal Residential Clean Energy Credit applies when the battery is charged by a renewable source ≥80% of the time. Verify current credit availability — federal incentives are subject to legislative change.
Ready to Compare Battery Quotes?
Get multiple quotes from certified battery installers in your area and compare real pricing side-by-side.
Get Battery QuotesPick your situation above, enter your state or ZIP, monthly bill, and battery size — then click "Calculate Payback" to see whether a battery makes financial sense for you.
Assumptions & data sources: Calculations assume ~1 full cycle/day, 90% depth-of-discharge and 90% round-trip efficiency, ~$5/kWh value of lost load for outage protection, and a 3%/year electricity-rate escalator. The 30% federal Residential Clean Energy Credit (25D) is applied to net cost and assumes the battery is charged by renewables ≥80% of the time. State time-of-use peak/off-peak spreads, battery incentives, outage hours, and Virtual Power Plant programs are curated averages — as of 2026 and subject to change. Always verify current programs with your utility and the DSIRE database.