Solar rebates in WA — what you can claim in 2026
In Western Australia, the main solar rebate is the federal STC discount, plus WA's own battery subsidy — $1,300 in the Synergy area (Perth and the south-west) or up to $3,800 in the Horizon Power area. The federal battery rebate can apply too, and the DEBS scheme pays you for exported solar.
Here's how the federal and WA-specific support fits together in 2026, and how to claim.
The federal solar rebate (STCs)
Every WA solar install gets the federal STC discount, worth around $1,600 off a typical 6.6 kW system in 2026 — applied upfront by your installer, stepping down each year to 2030. Full detail in our Australian solar rebate guide.
WA battery subsidy
Western Australia runs its own battery subsidy (from mid-2025):
- $1,300 for homes in the Synergy network (Perth and the south-west)
- Up to $3,800 for homes in the Horizon Power network (regional WA)
- Zero-interest loans of up to $10,000 for the remaining battery cost
The federal Cheaper Home Batteries Program (~30% off) may also apply — your installer confirms the current stack for your home.
DEBS feed-in tariff
WA's Distributed Energy Buyback Scheme (DEBS) pays you for surplus solar you export, at time-varying rates: around 10c/kWh at peak (3–9pm) and about 2c/kWh off-peak. Because the peak rate is much higher, WA homes benefit from using power in the day and exporting in the late afternoon.
Why solar works well in WA
WA — especially Perth — gets among the most sunshine hours in Australia, so a rooftop system generates strongly. With the federal rebate keeping costs low and WA's battery subsidy on top, the economics stack up well. See whether solar is worth it.
How to claim your WA rebates
Your accredited installer applies the federal STC and battery rebates to your quote. The WA battery subsidy and zero-interest loan are administered by the WA Government, and your installer usually helps with the application. See Australian solar costs, or get a free assessment.
Rebates in other states: New South Wales · Victoria · Queensland.
Common questions
Is there a solar rebate in WA in 2026?
Yes — the federal STC discount (around $1,600 off a 6.6 kW system), plus WA’s own battery subsidy: $1,300 in the Synergy area (Perth/south-west) or up to $3,800 in the Horizon Power area, with zero-interest loans up to $10,000.
How much is the WA battery rebate?
WA offers $1,300 for homes in the Synergy network (Perth and the south-west) and up to $3,800 in the Horizon Power network (regional WA), plus zero-interest loans up to $10,000. The ~30% federal battery rebate may also apply.
What is the DEBS feed-in tariff in WA?
The Distributed Energy Buyback Scheme (DEBS) pays around 10c/kWh at peak (3–9pm) and about 2c/kWh off-peak for exported solar. The higher peak rate rewards exporting in the late afternoon.
How much does solar cost in WA?
A 6.6 kW system typically costs $5,000–$8,500 after the federal rebate. With Perth’s strong sun and WA’s battery subsidy, payback is fast — often 3–6 years. See our Australian solar cost guide.
How do I claim the WA solar rebate?
Your accredited installer applies the federal rebates to your quote. The WA battery subsidy and zero-interest loan are administered by the WA Government, and your installer usually helps with the application.