Tools
Free home battery calculators
Get the real number before a quote turns into a sales story. Size the backup, benchmark the installed price, and catch stale incentive claims before you sign.
Home Battery Sizing Calculator
Estimate usable kWh, outage runtime, solar refill assumptions, and how many common battery units you may need.
Open calculator →Battery Quote Calculator
Turn a proposal into installed price per usable kWh and screen whether the quote is fair, high, or missing explanation.
Open calculator →Battery Tax Credit Calculator 2026
Check whether a quote is using stale federal-credit language and which state or utility incentive needs verification.
Open calculator →
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