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A WA battery purchase clears federal and state support when six things hold true at the time you sign. Miss one, and the claim can stall well after the paperwork is lodged.
Work through each point below before you sign a contract, not after the install is booked.
Both need to appear on the approved product lists that federal and WA rebate schemes check against. A model that qualified last year can drop off the list if the manufacturer changes a component or the accreditation body updates its register. Ask your installer to confirm the exact model number against the current list before you sign. The brand name alone isn't enough.
Yes. Installer accreditation for solar and battery work moved from the Clean Energy Council to Solar Accreditation Australia, and it's SAA accreditation, not a general electrical licence, that makes the install eligible under the federal Small-scale Renewable Energy Scheme, the mechanism behind the upfront STC discount. Ask to see the installer's SAA accreditation number and confirm it covers battery installations specifically, not just solar panels. The STC timing calculator shows how the certificate value changes depending on when the install is booked.
The Supported Solutions List is an inverter list, not a battery list. What matters is that the inverter your battery pairs with is listed under DER-Storage — a listing on its own isn't enough. Without that pairing, the system won't qualify for the WA state battery rebate, worth $130 per kWh of battery capacity, up to a cap of $1,300. The WA battery rebate breakdown covers how that figure is calculated, and the stacking worked examples show how it combines with the federal STC discount on the same battery. Ask your installer to confirm the exact inverter and battery model codes against the current list at quote time — listings change.
For the WA Residential Battery Scheme, yes — the battery has to be actually enrolled, not merely capable. Joining a VPP is mandatory for both the rebate and the no-interest loan. You can install a battery without joining one, but then no rebate is paid. Your consent to enrol is recorded at commissioning rather than added later, and the agreement runs an initial two-year term. Synergy's own product is Battery Rewards; an alternative VPP product offered by your battery supplier can be accepted if it shares orchestration value with you and runs through Synergy as the parent aggregator.
Four things, typically:
Installers generally log serial numbers and file the commissioning report as standard compliance practice. Ask your installer to confirm what they'll provide and what you need to supply yourself. The paperwork and proofs guide sets out the fuller documentation trail for your claim, and the federal STC rebate page covers how that discount is applied at the point of sale.
Synergy customers get $130/kWh back, capped at $1,300.
Activation events credit 70¢/kWh on top of DEBS exports, and signing up is a WA rebate condition.
Worked examples of combining both schemes on a single install.
Answer a few questions and see systems and installers that fit your home.