Solar and battery rebates in Western Australia
By My Energy Mate Editorial · Last updated
Quick Answer
Households in Western Australia can stack 1 state scheme on top of the two federal programs: the STC solar rebate and the roughly 30% federal battery discount. Combined, rebates commonly remove A$4,000 to A$8,000 from a solar-plus-battery quote in 2026.
Western Australia schemes
WA Residential Battery Scheme
Up to A$1,300 (Synergy areas) or A$3,800 (Horizon Power areas) additional battery rebate, stackable with the federal program, plus optional no-interest loans.
- WA grid-connected household
- Eligible battery paired with solar
- VPP-capable in Synergy areas
Federal schemes (also apply)
Cheaper Home Batteries Program
Roughly 30% off installed battery cost, about A$330 per usable kWh in 2026, applied at point of sale via STCs. Declines annually to 2030.
- Battery between 5 and 100 kWh (rebate paid on first 50 kWh)
- Installed with new or existing solar PV
- CEC-approved battery and accredited installer
- One rebate per premises
Small-scale Renewable Energy Scheme (STCs)
Point-of-sale discount worth roughly A$1,800-2,500 on a 6.6 kW system in 2026, based on STC price and your zone. Declines annually to 2030.
- System up to 100 kW
- CEC-approved panels and inverter
- Installed by an accredited installer
Frequently asked questions
Can I stack state and federal rebates in Western Australia?
Yes. Western Australia's schemes stack on top of the federal STC solar rebate and the Cheaper Home Batteries program; your installer applies them together at quote time.
Who applies the rebates, me or the installer?
Point-of-sale schemes (STCs, the federal battery program) are applied by the installer and appear as a discount on your quote. Loans and grant schemes usually require your own application before installation.