What rebates can WA households actually claim in 2026?
Australian solar rebates come in two layers: the federal Small-scale Technology Certificate (STC) scheme that every household gets, and a state-specific top-up that varies by where you live. Western Australia households can stack both, plus the federal Cheaper Home Batteries Program if you're adding storage.
For a typical 6.6 kW system in WA, the federal STC rebate is worth about $1,386. WA sits in STC Zone 3, which means the zone rating multiplier is 1.382 (a middle-of-the-road federal rate). The rebate is applied as a point-of-sale discount on your invoice. You never receive cash directly; you simply pay less for the system.
Active WA programs (May 2026)
WA Residential Battery Scheme — Synergy customers
Point-of-sale rebate for Synergy network customers (South West Interconnected System). Mandatory VPP participation. Stacks with the federal Cheaper Home Batteries Program.
WA Residential Battery Scheme — Horizon Power customers
Larger per-kWh rebate for Horizon Power customers in regional and remote WA, reflecting higher local energy infrastructure costs.
Distributed Energy Buyback Scheme (DEBS)
WA's regulated time-of-export feed-in scheme. Synergy customers receive 2.0 c/kWh off-peak and 10 c/kWh peak (3pm–9pm). Higher rates for Horizon customers in remote networks.
Feed-in tariffs in Western Australia
WA uses a regulated, time-of-export feed-in tariff (DEBS) — 2.0c/kWh off-peak and 10c/kWh during peak (3pm–9pm) for Synergy customers. This makes battery storage especially valuable: charge during the day, export during the evening peak window.
The feed-in tariff is what your retailer pays you for solar power you export back to the grid. It's not part of the rebate, but it's a major driver of long-term savings. Choosing a retailer with a high feed-in rate can be worth $200–$500 a year on top of the rebate.
| Retailer | Solar feed-in rate | Cap |
|---|---|---|
| Synergy DEBS | 2.0c off-peak / 10c peak | — |
| Horizon Power | Up to 50c/kWh in some remote towns | — |
Rates checked against retailers' published plans. They change frequently and can vary by network area; use the AER's Energy Made Easy comparison tool for the live picture. Full WA feed-in tariff comparison →
How much is solar worth in Western Australia?
Real-world payback for a typical 6.6 kW system in WA sits between 3 and 5 years, depending on daytime usage and retailer choice. WA's high year-round irradiance (about 4.7 peak sun hours per day) is a big driver of the short payback — every kW of panels produces more energy than the southern states. On a 6.6 kW system, the typical WA household saves about $ 1,884 per year against their current electricity bill.
What size system fits a WA home?
- Apartment / small home: 5 kW — about 15 panels. Suits 1–2 person households on quarterly bills under $300.
- Typical family home: 6.6 kW — about 19.799999999999997 panels. The most-installed size in Australia. Suits 3–4 person households with quarterly bills $300–$600.
- Larger home / battery-ready: 10 kW or more. Suits households with pools, ducted air-con, EV charging, or planning to add a battery within 12–18 months.
See your exact WA rebate
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The federal Cheaper Home Batteries Program
From 1 July 2025 every state can claim the federal Cheaper Home Batteries Program — about $372 per kWh of installed usable battery capacity. On a 13.5 kWh battery (a Tesla Powerwall 3 or equivalent) that's roughly $5,000 off. It stacks on top of WA state programs (where applicable) and on top of the STC rebate for any solar installed at the same time.
The catch
The federal STC rebate steps down each January by roughly 1/15th. Today's $1,386 federal rebate will be about $ 1,294 in 12 months, and lower again the year after that. The scheme phases out entirely by 2030. If you've been thinking about solar, getting locked in this year is measurably more valuable than waiting.
How we get you the best rebate 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 every rebate at invoice. You pay the discounted price, that's it.
Common questions about Western Australia solar rebates
How much is the solar rebate in Western Australia in 2026?
Most WA households claim about $2,686 in stacked rebates on a typical 6.6 kW system. That's roughly $1,386 in federal STC value, plus around $1,300 from WA-specific programs.
Which state-specific rebates can I claim in Western Australia?
WA currently has 3 active programs in May 2026: WA Residential Battery Scheme — Synergy customers; WA Residential Battery Scheme — Horizon Power customers; Distributed Energy Buyback Scheme (DEBS).
What feed-in tariff will I get in Western Australia?
WA uses a regulated, time-of-export feed-in tariff (DEBS) — 2.0c/kWh off-peak and 10c/kWh during peak (3pm–9pm) for Synergy customers. This makes battery storage especially valuable: charge during the day, export during the evening peak window. Typical rates currently range from 2 c/kWh to 10 c/kWh depending on retailer. The cheapest plan isn't always the best feed-in plan, so it's worth comparing both together.
How big a system do most Western Australia homes install?
The typical WA home installs a 6.6 kW system. Smaller homes or apartments often go with 5 kW; larger family homes with batteries or pool pumps usually size up to 10 kW.
Does the federal STC rebate apply in Western Australia?
Yes. The federal Small-scale Technology Certificate (STC) scheme applies in every state. Western Australia sits in STC Zone 3, which gives an STC zone rating of 1.382. On a typical 6.6 kW system this is worth about $1,386 off the invoice.
How long does payback take in Western Australia?
For most WA households the payback period on a typical 6.6 kW system is 3–5 years, depending on daytime usage, system size, and electricity retailer. Battery payback is longer (typically 7–10 years) but improves substantially with the federal Cheaper Home Batteries Program.
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