Cheaper Home Batteries Program 2026: Australia's Solar Battery Rebate Explained
Australia's federal battery rebate takes around 30% off the cost of a home battery — roughly $252 per usable kWh in 2026. But it stepped down on 1 May 2026 and shrinks again every year, so timing matters. Here's exactly how much you get, who qualifies, and how to claim it — with the real numbers.
Muhammad founded KilowattKit after spending hours trying to decode confusing electricity bills and realising there were no clear, jargon-free tools for ordinary homeowners. He researches energy rates, solar payback, EV charging, and heat pump economics across the US, UK, Canada, and Australia — sourcing every figure directly from official government and regulatory data.
🔋 Key takeaways
- ✓Around 30% off a home battery, delivered as an upfront installer discount via the STC scheme.
- ✓Worth about $252 per usable kWh in 2026 — e.g. ~$2,520 off a 10 kWh battery, ~$3,400 off 13.5 kWh.
- ✓Battery must be 5–100 kWh and paired with solar (new or existing). No income test. One per property.
- ✓The rebate stepped down on 1 May 2026 (from ~$311/kWh) and drops further each year to 2030.
- ✓Stacks with several state schemes (NSW, VIC, WA, ACT and others).
What Is the Cheaper Home Batteries Program?
Launched on 1 July 2025, the Cheaper Home Batteries Program is the Australian Government's national incentive to make home battery storage affordable. It doesn't send you a cheque — instead it plugs into the existing Small-scale Technology Certificate (STC) scheme (the same mechanism that has discounted rooftop solar for years), so the saving reaches you as an upfront discount on your installer's quote.
The headline is roughly 30% off the installed cost of an eligible battery. It's uncapped by income, open to households, small businesses and community groups, and scheduled to run until 2030 — but, crucially, the per-kWh value shrinks over time.
How Much Is the Rebate Worth in 2026?
The discount is calculated per usable kWh of battery capacity. Following the 1 May 2026 step-down, it's worth about $252 per usable kWh for the first tier (down from ~$311 before that date). Here's what that means for common battery sizes:
| Battery size | Approx. rebate (2026) | Suits |
|---|---|---|
| 5 kWh | ~$1,260 | Small home, top-up storage |
| 10 kWh | ~$2,520 | Average home |
| 13.5 kWh | ~$3,400 | Popular size (Powerwall-class) ✅ |
| 20 kWh | ~$4,400 | Large home / EV household |
Figures are approximate: the rebate is delivered as STCs, whose market price fluctuates, so your installer quotes the exact amount. The 20 kWh figure reflects the tiered taper (see below). Above 50 kWh usable capacity, no further rebate applies.
The Tiered Taper (Bigger Batteries Get Less Per kWh)
From 1 May 2026 the rebate tapers with battery size — the STC factor is scaled down for larger systems:
| Usable capacity | STC factor applied | Approx. value / kWh |
|---|---|---|
| 0 – 14 kWh | 100% | ~$252 |
| 14 – 28 kWh | 60% | ~$151 |
| 28 – 50 kWh | 15% | ~$38 |
For the vast majority of homes — batteries of 10–20 kWh — most of your capacity sits in that top ~$252/kWh tier, so the taper only really bites on very large systems.
Who Qualifies?
- You're a household, small business or community org
- The battery is 5–100 kWh nominal
- It's paired with solar (new or existing)
- An accredited installer fits it (on/after 1 Jul 2025)
- No income test
- One battery per property (per NMI)
- No need to install solar at the same time
- Rebate is paid on the first 50 kWh usable
The single most common misconception: you don't need to buy new panels. If your roof already has solar, you can add an eligible battery and claim the rebate on the battery alone.
How to Claim It
- 1Choose an accredited installer. Only systems installed by accredited installers generate the STCs — this is what makes the discount valid.
- 2Get quotes — and check the discount is included. Most installers apply the STC value as an upfront price reduction. Ask whether the quoted price is before or after the battery rebate.
- 3The installer handles the paperwork. You assign the STCs to them and they take care of the rest — there's no separate government form for you to lodge.
Is a Battery Actually Worth It With the Rebate?
The rebate genuinely changes the maths, but it's not automatic. A battery pays off when it lets you avoid buying expensive evening-peak grid power (28–45c/kWh across most states) using solar you'd otherwise export for a shrinking feed-in tariff. With ~30% off the upfront cost, well-sized systems on good tariffs are now landing in the sub-10-year payback range.
It's strongest when: you have solar with lots of daytime export, high evening usage, and a low feed-in tariff. It's weakest when: your usage is very low, or you're still on a legacy high feed-in tariff that pays more to export than a battery saves.
Because feed-in tariffs are the other half of this equation, it's worth checking what your state actually pays for exported solar — see our guide to Australian solar feed-in tariffs by state, and estimate the numbers with our solar battery payback calculator.
Stacking With State Rebates
The federal rebate is designed to combine with several state and territory incentives and interest-free loans, which can push your out-of-pocket cost down further. Rules and amounts change often, so confirm current details with your installer and state scheme:
- →Victoria & South Australia — see our state guides: Victoria solar & battery, South Australia.
- →NSW, WA and the ACT run their own battery or energy-storage support alongside the federal scheme.
- →For the solar-panel side of the incentive, see the STC solar rebate and the Australia solar incentives hub.
Estimate your payback with the rebate applied, and check your state's feed-in tariff — free, no email, formulas shown.