A solar battery stores the power your rooftop solar panels make during the day, so you can run your home on it after dark instead of buying electricity back at peak rates. Whether you're searching for a solar battery, a solar panel battery, or simply a battery for your solar panels, it does the same job: it turns free daytime sun into usable evening power. This page pulls together what one costs, which brands are worth a look, whether it pays off, what installation day looks like, and your state's separate rebate on top of the federal discount.
| Solar batteries, the quick facts | 2026 |
|---|---|
| Typical cost, 10kWh, installed | $7,000 to $10,000 after the federal rebate |
| Federal discount | ~30% off, around $2,400 to $3,300, straight off your invoice |
| Typical payback | 3 to 5 years, faster with a VPP or high evening usage |
| Installation | Usually one day, by a Clean Energy Council accredited installer |
Every state and territory also runs its own incentive on top of the federal discount, which we keep as a separate number, never merged into one headline. See what stacks in your state on our solar battery rebate pages, or check your exact figure by postcode below.