Battery rebate in Western Australia
A 13.5 kWh home battery installed in Western Australia in May–Dec 2026 gets a federal rebate of about $3,458. WA adds up to $1,300 (Synergy customers) or $3,800 (Horizon Power) on top of the federal rebate if you join a virtual power plant, plus interest-free loans.
State incentives in WA
WA's Residential Battery Scheme adds up to $1,300 (Synergy customers) or $3,800 (Horizon Power) on top of the federal rebate if you join a VPP, plus interest-free loans of up to $10,000. It isn't included in the figures here; check your eligibility with your installer.
Source: WA Government: Residential Battery Scheme. Checked 9 November 2026; schemes change, so confirm with the scheme and your installer before you sign.
What a battery is worth in WA
A battery stores solar power you'd otherwise export, so you use it in the evening instead of buying from the grid. In WA that swaps a feed-in credit of about 3c per kWh for a usage price of about 33c.
Family of four in Perth, $650 a quarter, no solar yet, using 2026–27 regulated prices. See the full Perth plan →
Federal rebate by battery size
| Usable size | Installed in May–Dec 2026 | Installed in Jan–Jun 2027 |
|---|---|---|
| 5 kWh | $1,292 | $1,064 |
| 10 kWh | $2,584 | $2,166 |
| 13.5 kWh | $3,458 | $2,888 |
| 20 kWh | $4,522 | $3,800 |
The same in every state: it's set by usable capacity and install date, at $38 per STC. To qualify, the exact model must be on the approved list, installed with solar by an accredited installer, and able to join a virtual power plant. Work out the rebate for your battery →
What size suits your home?
Answer a few questions about your home and power use, and we'll recommend a solar and battery size with costs after rebates.
Questions
Is there a battery rebate in Western Australia?
Yes. The federal Cheaper Home Batteries Program applies in every state and territory, including Western Australia. WA adds up to $1,300 (Synergy customers) or $3,800 (Horizon Power) on top of the federal rebate if you join a virtual power plant, plus interest-free loans.
How much is the battery rebate in WA?
The federal rebate depends on the battery's usable capacity, not where you live. A 13.5 kWh battery installed in May–Dec 2026 earns about $3,458, at $38 per certificate. Your installer sets the price they credit and may deduct fees, so check the quote.
When does the battery rebate drop?
On 1 January 2027. A 13.5 kWh battery installed on or after that date earns about $2,888, $570 less. The date that counts is when it's installed and commissioned, not when you sign.
Is a battery worth it in WA?
It depends on the gap between what you pay for power and what you're paid for exporting it. In WA the typical usage price is about 33c per kWh and the feed-in tariff about 3c, so every kWh a battery stores for the evening is worth roughly 33c instead of 3c. For a family of four in Perth on a $650 quarterly bill, the planner suggests 10 kW of solar with a 5 kWh battery, saving about $1,897 a year.