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Home battery installations in WA qualify for two rebates: the federal STC scheme and the WA Battery Scheme. You can claim both, and Synergy Battery Rewards adds ongoing credits on top.
Current WA Battery Scheme requirements
Under the framework in force since 1 May 2026, Battery Rewards (VPP) participation is required for WA Battery Scheme rebates, and all new installations must use CSIP-AUS compliant equipment. Learn more.
Note: Rebate amounts and STC prices can change. Confirm current rates and eligibility with your installer or official government sources.
The Small-scale Technology Certificate (STC) scheme provides upfront rebates for eligible solar battery installations. Maximum capacity: 50kWh. Capacity tapers apply above 14kWh under the framework in force since 1 May 2026.
*Based on 6.8 STCs/kWh (May–Dec 2026, the current factor) at ~$39.9/STC. Tapering: 100% for 5–14 kWh, 60% for 14–28 kWh, 15% for 28–50 kWh. Batteries over 14kWh see 40–85% reductions.
Western Australia offers a state rebate for battery installations in the Synergy network. From May 2026, Battery Rewards VPP participation is required.
From May 2026: Battery Rewards (VPP) participation is required for this rebate. Your system must be CSIP-AUS compliant and on the Synergy SSL.See full requirements →
Combined savings: $4,931 (30% discount), both rebates claimed together
The WA state and federal rebate schemes are separate programs, each with its own criteria and caps. You can claim both on the same battery installation.
Maximum combined benefit (current STC rates):
For a 10kWh battery: up to $2,713 (federal) + $1,300 (WA state) = $4,013 total rebate
Most residential batteries are 10-13kWh. WA state rebate caps at $1,300 (10kWh). Federal STCs vary by size and timing.
Earn ongoing credits when your battery supports the grid during peak demand. Required for WA Battery Scheme rebates from May 2026.
70¢
per kWh during activation events
~$150
annual credits (10kWh battery)
30
max events per year
Programs that add to your savings beyond the two rebates.
Time-of-use feed-in credits for solar exports, compatible with Battery Rewards.
Peak (3pm-9pm)
10¢/kWh
Off-peak
2¢/kWh
DEBS credits are paid in addition to Battery Rewards activation credits.
From May 2026, your export limit depends on your customer tier selection.
The STC rebate is typically applied automatically by your installer, reducing your upfront cost.
Important note
Most installers handle the entire STC rebate process on your behalf. The rebate value is deducted from your final invoice, meaning you pay less upfront. Always confirm this with your installer before signing any contracts.