Solar battery cost calculator
Estimate what a home battery costs in 2026 — and how long it keeps your essentials running in an outage.
Estimate your battery cost
Two inputs. We use the US average installed price (~$1,150/kWh). Note: the federal battery credit was eliminated Dec 31, 2025 — check your state's programs.
Essentials (fridge, lights, internet, a few outlets) run ~8–12 kWh/day. Whole-home is ~25–30 kWh/day.
How much do solar batteries cost?
A home battery runs about $1,000–$1,200 per kWh installed before state incentives — roughly $10,000–$15,000 for a typical 10–13 kWh unit. The federal residential tax credit that used to cover battery storage was eliminated for new installations after December 31, 2025. Check your state's programs (California SGIP, New York NYSERDA, etc.) for available incentives.
Whether a battery is "worth it" depends on your goal: buy it for backup during outages or to dodge peak time-of-use rates. If your grid is reliable and you have strong net metering, panels alone usually give the faster payback.
Read: Is a solar battery worth it? → Solar savings calculator →
Backup & monitoring gear
- Home energy monitors — see exactly how much you use so you can size storage right.
- Portable power stations — a budget way to back up essentials without a full install.
- Whole-house surge protectors — protect your system and appliances.
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