Battery calculator
Check whether a solar battery is likely to make sense.
Battery payback depends on usage timing, tariff spread, backup needs, rebates, and installed cost. Start with the numbers before accepting a battery quote.
Buyer warning
A battery quote should separate financial payback from backup value. Ask what usable capacity, warranty throughput, tariff assumptions and backup hardware are included.
Battery estimate
Usable capacity
9 kWh
Annual shifted energy
2,628 kWh
Annual value
$710
Simple payback
16.9 yrs
Battery economics depend heavily on tariff spread, backup needs, usage timing, and battery life.
Battery-ready quotes
Compare solar-only and battery-ready options
Installer quotes should separate panel system cost, inverter choice, battery option, backup capability, and expected tariff assumptions.