Home batteries let you store solar power made during the day and use it at night. For a long time the upfront cost put them out of reach for many households. The federal Cheaper Home Batteries Program, which began on 1 July 2025, set out to change that. It offers a discount of around 30 per cent on eligible batteries installed with solar.
The program has changed since it started. From 1 May 2026, the discount is staggered by battery size and it falls at set points over time. This guide explains how the discount works now and what makes a battery eligible. It also covers what to check before you sign a contract.