Federal figures are gross certificate values at the 15 October 2026 price of $39.65 per STC; source: Demand Manager, STC spot market. Installers usually pass through slightly less after certificate fees.
Solar rebates in Perth and regional WA
The federal solar rebate follows your postcode's STC zone, not the state border. Perth, Mandurah, Bunbury and Kalgoorlie all get the same $1,784 on a 6.6 kW system for a 2026 install. Geraldton (Zone 2, about $1,983) and Broome (Zone 2, about $1,983) sit in a different zone. For batteries, Perth, Mandurah, Bunbury and the rest of Synergy's grid get the $1,300 WA rebate; Horizon Power towns such as Broome get up to $3,800. State programs apply the same way across Western Australia, from Perth to Mandurah, Bunbury, Geraldton, Kalgoorlie and Broome.
| Town | Postcode | STC zone | STCs (6.6 kW) | Federal solar rebate |
|---|---|---|---|---|
| PerthSynergy | 6000 | Zone 3 | 45 | $1,784 |
| MandurahSynergy | 6210 | Zone 3 | 45 | $1,784 |
| BunburySynergy | 6230 | Zone 3 | 45 | $1,784 |
| GeraldtonSynergy | 6530 | Zone 2 | 50 | $1,983 |
| KalgoorlieSynergy | 6430 | Zone 3 | 45 | $1,784 |
| BroomeHorizon Power | 6725 | Zone 2 | 50 | $1,983 |
Zones from the Clean Energy Regulator's postcode zone table; 5 deeming years for a 2026 install; at the 15 October 2026 price of $39.65 per STC. Check your own postcode in the STC calculator.
What changed in WA recently
Checked against the official sources on 10 October 2026.
The WA Residential Battery Scheme pays up to $1,300 for Synergy customers or up to $3,800 for Horizon Power customers, on up 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 $4,000 gross ($2,696 federal plus $1,300 state), or about $3,800 after typical installer fees on the federal part. A Horizon install attracts about $6,500 gross.
An interest-free loan of up to $10,000, repaid over up to 10 years, is available alongside the rebate for households earning under $210,000. It can cover solar panels installed with the battery.
Dated update: WA battery rebate: $130/kWh Synergy, $380/kWh Horizon.
How the WA solar rebate works in 2026
There is no single "WA solar rebate". What you claim is a stack. The federal solar STC discount under the Small-scale Renewable Energy Scheme is about $1,784 on a 6.6 kW system in STC Zone 3. WA adds no general panel rebate. If a battery goes in too, the federal Cheaper Home Batteries discount adds about $3,608 on a 13.5 kWh battery (about $270 per usable kWh on the first 14 kWh). Everything is applied at the point of sale by your installer. You never receive cash; you just pay less.
Eligibility checklist for the federal solar rebate
- A new solar system of up to 100 kW, which is the Small-scale Renewable Energy Scheme (SRES) limit.
- Panels and inverter on the Clean Energy Council's approved product list.
- Designed and installed by a Solar Accreditation Australia (SAA) accredited installer.
- The installation date sets the deeming period: 5 years for a system installed by 31 December 2026, 4 after that.
- No income test and no form for you to lodge: the installer creates the STCs and takes the value off the quote.
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: on a 10 kWh battery the two come to about $4,000 gross, or about $3,800 after typical installer fees on the federal part. 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 $6,500 gross.
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 are from the regulator or retailer source linked on the feed-in tariff page. 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 published schedules, not marketing deadlines, and the Clean Energy Regulator applies them by installation date. The battery factor keeps falling every January and July until the program ends after 2030, and the solar scheme phases out on 31 December 2030.
See your exact WA solar and 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 SAA-accredited installer who works in your area, and they apply every rebate you're eligible for at the point of sale. 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 SAA-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 WA solar rebates
How much is the solar rebate in Western Australia in 2026?
About $1,784 on a 6.6 kW system in Perth: 45 federal STCs at the 15 October 2026 price of $39.65 per STC, for a system installed by 31 December 2026. The figure moves with your postcode's STC zone and the system size. WA adds no panel rebate. Its money is for batteries, and its 0% loan of up to $10,000 covers solar panels only when they go in with a battery.
How much is the battery rebate in Western Australia?
About $3,608 on a 13.5 kWh battery from the federal Cheaper Home Batteries Program (6.8 STCs per usable kWh for batteries installed by 31 December 2026, at the 15 October 2026 price of $39.65 per STC). WA adds $1,300 for Synergy customers, or up to $3,800 on the Horizon Power network.
Does Western Australia have a battery rebate in 2026?
Yes. The WA Residential Battery Scheme pays up to $1,300 for Synergy customers or up to $3,800 for Horizon Power customers, with a VPP required, plus an interest-free loan of up to $10,000. It stacks with the federal discount: about $4,000 gross on a 10 kWh Synergy install, or about $3,800 after typical installer fees.
Are solar rebates reducing in 2026?
Yes, on a fixed schedule rather than by surprise. The federal solar STC rebate loses a year of deeming every 1 January: 5 deeming years for 2026 installs, dropping to 4 from January 2027, on the way to zero in 2031. On a 6.6 kW WA system that is about $1,784 now versus $1,427 from next year. The federal battery discount steps down too, next on 1 January 2027 when the factor falls from 6.8 to 5.7 STCs per usable kWh.
Who is eligible for the solar rebate in Western Australia?
The federal solar STC rebate has no income test: any WA home or business installing panels and inverters on the Clean Energy Council's approved list, through a Solar Accreditation Australia (SAA) accredited installer, qualifies under the Small-scale Renewable Energy Scheme for systems up to 100 kW. On top of that, WA runs its own eligibility rules: WA Residential Battery Scheme, Synergy customers: Owner-occupier Synergy customer; WA Residential Battery Scheme, Horizon Power customers: Horizon Power network customer.
How much is a 6.6 kW solar system in Western Australia after the rebate?
A 6.6 kW system typically costs $6,900 to $9,200 installed before any discount. In Western Australia the federal STC rebate takes about $1,784 off that at the point of sale, so you land around $5,116 to $7,416 after the rebate.
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 drop?
The federal battery discount runs to 2030, but it steps down before then. On 1 January 2027 the factor falls from 6.8 to 5.7 STCs per usable kWh, trimming about $595 off a 13.5 kWh battery ($3,608 now versus $3,013 after). The solar STC rebate also drops on 1 January 2027, worth about $357 less on a typical 6.6 kW WA system. The Clean Energy Regulator sets both by the installation date.
Does the WA government give rebates for solar panels?
No, not for panels on their own. WA's state money is for batteries: the WA Residential Battery Scheme pays up to $1,300 for Synergy customers and up to $3,800 on the Horizon Power network, and its interest-free loan of up to $10,000 can cover solar panels only when they are installed with a battery. The rebate for panels in WA is the federal one: about $1,784 in STCs on a 6.6 kW system in Perth for a 2026 install.
Do I have to join a VPP to get the WA battery rebate?
Yes. Joining a virtual power plant is a condition of the WA Residential Battery Scheme, not an optional extra, so factor it in before you commit. In practice it means your retailer can call on a slice of your stored energy at peak times.
How do I apply for the solar rebate in Western Australia?
For the federal money, you don't. There is no form to lodge and no waiting for a cheque. Your accredited installer creates the certificates, claims them, and takes the value off your quote before you pay, so a 6.6 kW system in Western Australia is quoted about $1,784 cheaper and a 13.5 kWh battery about $3,608 cheaper. What you have to do is check the discount is itemised on the quote, and that the installer is SAA-accredited. The WA Residential Battery Scheme rebate is applied for by your approved vendor on your behalf, not by you, and the interest-free loan is arranged alongside it.
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