In early 2026 the federal battery rebate works out to around $300 per usable kWh, so a 10kWh battery attracts roughly $3,000 off the installed price. That rebate drops to around $244/kWh from 1 May 2026.

On top of that, most ACT homeowners can use the Sustainable Household Scheme to finance the remainder at 3% interest over up to 10 years, so you don’t need the full cost upfront. Full details on the federal program are at energy.gov.au.