What changed in WA recently
Checked line by line against the official sources on 13 July 2026.
The WA Residential Battery Scheme pays $130 per usable kWh for Synergy customers (capped at $1,300) or $380 per kWh for Horizon Power customers (capped at $3,800), on 5 to 10 kWh of usable capacity. VPP participation is mandatory for 2 years.
Stacked with the federal discount, a 10 kWh Synergy install attracts about $4,013 today ($2,713 federal plus $1,300 state); a Horizon install about $6,513. Older "$5,000 to $7,500 combined" figures still circulating were calculated before the federal factor stepped down in May 2026, so don't budget off them.
An interest-free loan of $2,001 to $10,000, repaid over up to 10 years, is available alongside the rebate for households earning under $210,000.
How the WA battery rebate stack works in 2026
There is no single "WA solar battery rebate". What you actually claim is a stack: the federal Cheaper Home Batteries discount (about $271 per usable kWh on the first 14 kWh, so roughly $3,631 on a 13.5 kWh battery), the federal solar STC rebate (about $1,796 on a 6.6 kW system in STC Zone 3), plus the live state incentives below. Everything is applied at the point of sale by your installer. You never receive cash; you just pay less.
Every WA program, with live status
WA Residential Battery Scheme, Synergy customers
LivePoint-of-sale rebate for Synergy customers (Perth and the South West grid). Requires joining a Virtual Power Plant with a 2-year commitment. Stacks with the federal Cheaper Home Batteries Program: combined value on a 10 kWh battery is about $3,800 today. Around 100,000 rebates are funded, expected to last into 2027.
WA Residential Battery Scheme, Horizon Power customers
LiveLarger per-kWh rebate for Horizon Power customers in regional and remote WA. Combined with the federal discount, a 10 kWh battery attracts about $6,300 in stacked support today.
WA Residential Battery Scheme, no-interest loan
LiveInterest-free loan for the battery purchase alongside the rebate, repaid over up to 10 years.
Distributed Energy Buyback Scheme (DEBS)
LiveWA's regulated time-of-export feed-in scheme for Synergy customers, paid on the first 50 kWh exported per day. The 5x peak/off-peak spread is exactly the arbitrage a battery captures every evening.
Why storing beats exporting in Western Australia
WA uses a regulated, time-of-export feed-in tariff (DEBS): 2c/kWh off-peak and 10c/kWh during the 3–9pm peak for Synergy customers, on the first 50 kWh/day. Batteries shift solar from the 2c window into the 10c window (or straight into your own evening usage at 30c+).
The feed-in tariff is what your retailer pays for exported solar. It's not part of the rebate, but it is the reason the battery maths works: every kilowatt-hour you store and use at night is worth what you'd otherwise pay the grid in the evening, several times what a midday export earns.
| Retailer / benchmark | Feed-in rate | Conditions |
|---|---|---|
| Synergy DEBS | 2c off-peak / 10c peak (3–9pm) | Uncapped |
| Horizon Power | Region-dependent, ~10c/3c | Uncapped |
Rates checked against published plans and regulator determinations. They change frequently and can vary by network area; use the AER's Energy Made Easy tool for the live picture. Full WA feed-in tariff comparison →
The cost of waiting in WA
Both step-downs are legislated schedules, not marketing deadlines. The battery factor keeps falling every January and July until the program winds up after 2030, and the solar scheme phases out on 31 December 2030.
See your exact WA battery rebate
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How we get you the full stack without the legwork
We're a free service for WA homeowners. You give us your postcode and bill range, we match you with one CEC-accredited installer who works in your area, and they apply every rebate you're eligible for at the point of sale. No quote-shopping. No call-centre scripts. One specialist, one number.
- 30-second eligibility check on this page: postcode, ownership, bill, roof.
- A friendly follow-up from your specialist within 24 to 48 hours.
- Matched with a single CEC-accredited installer in WA.
- Installer applies the full stack at invoice. You pay the discounted price, that's it.
More on how it works → · Run your own numbers in the calculator →
Common questions about the WA battery rebate
How much is the WA solar battery rebate in 2026?
On a typical 13.5 kWh battery, the federal Cheaper Home Batteries discount is worth about $3,631 in WA (6.8 STCs per usable kWh at the current certificate price). WA adds $130 per usable kWh (Synergy, capped at $1,300) or $380 per kWh (Horizon Power, capped at $3,800) on top. Add the federal solar STC rebate of about $1,796 on a 6.6 kW system, and the full stack on a typical solar plus battery install comes to about $6,727.
Does WA have its own battery rebate?
Yes. The WA Residential Battery Scheme pays $130 per usable kWh for Synergy customers (capped at $1,300) or $380 per kWh for Horizon Power customers (capped at $3,800), plus an interest-free loan of $2,001 to $10,000. It stacks with the federal discount: about $4,013 combined on a 10 kWh Synergy install.
What is the WA feed-in tariff for 2026-27?
Typical WA feed-in rates run 2 to 10 c/kWh for 2026-27. WA uses a regulated, time-of-export feed-in tariff (DEBS): 2c/kWh off-peak and 10c/kWh during the 3–9pm peak for Synergy customers, on the first 50 kWh/day. Batteries shift solar from the 2c window into the 10c window (or straight into your own evening usage at 30c+).
When does the battery rebate end?
The federal battery discount runs to 2030, but it steps down before then. On 1 January 2027 the subsidy factor falls from 6.8 to 5.7 STCs per usable kWh, trimming about $599 off a 13.5 kWh battery ($3,631 now versus $3,032 after). The solar STC rebate also drops on 1 January 2027, worth about $360 less on a typical 6.6 kW WA system. Installs certified before those dates lock in the current rates.
Can I claim the battery rebate on my existing solar system?
Yes. The federal Cheaper Home Batteries Program covers batteries added to existing solar as well as new solar plus battery installs. The battery must be 5 to 100 kWh nominal, installed by an accredited installer, and VPP-capable if you're on-grid. WA-specific incentives have their own rules; we confirm both when we get in touch.
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