Rebate calculator
The federal battery rebate steps down on 1 January 2027.
Last updated 1 October 2026
The federal Cheaper Home Batteries Program pays its rebate as a tiered share of the Small-scale Technology Certificate (STC) factor, applied to a battery's usable capacity:
- 100% of the factor on the first 14 kWh
- 60% of the factor from 14 kWh to 28 kWh
- 15% of the factor from 28 kWh to 50 kWh
Since the program changed on 1 May 2026, that factor itself also steps down every six months, on 1 January and 1 July, until the scheme ends in 2030. The next step-down takes the factor from 6.8 to 5.7 on 1 January 2027.
| Battery size | Rebate now (factor 6.8) | Rebate from 1 Jan 2027 (factor 5.7) |
|---|---|---|
| 10 kWh | ~$2,650 | ~$2,200 |
| 16 kWh | ~$4,050 | ~$3,400 |
Federal rebate only, before any state top-up. Estimated using an indicative STC price of $39/certificate (as of 30 Sept 2026) applied to both columns — only the government-set factor changes on 1 January 2027, not the market STC price, which floats separately. Rounded to the nearest $50, same as the rebate calculator.
Source: DCCEEW — Cheaper Home Batteries Program. If a battery's installation is scheduled close to a step-down date, confirm the exact factor that applies with your installer before relying on either column above.