WA Solar Battery Rebate: How Much You Can Get & How To Prepare
Last Updated: 17th Apr 2025
The Western Australian (WA) Government is rolling out their Residential Battery Scheme in several rounds. The latest the first round will start is on the 1st of July 2025. Here’s what we know so far – and how you could get ahead of the pack.
There are two elements to the very generous scheme: the battery rebate and a no-interest loan option.
How Much Is The WA Battery Rebate?
- For Synergy customers: $500 per kilowatt-hour up to 10 kWh of storage capacity (maximum rebate $5,000). But you’re not limited to a maximum 10kWh battery system – it can be bigger.
- For Horizon Power customers: $750 per kilowatt-hour for up to 10 kWh of storage capacity (maximum rebate $7,500). As with Synergy customers, you can go over 10 kilowatt-hours.
We’re assuming the “rebate” will be an up-front discount on the purchase price rather than a payment after installation, but we’re waiting on the WA Government to confirm it.
Example: if you were to buy a SigenStor Single-Phase 8 kWh battery, then for one with an easy straightforward installation, you would expect to pay around $9,100 or more. If you are on a Synergy Time-of-Use plan, the simple payback period — how long it would take for savings to equal the cost — would be almost 11 years:
However, the WA solar battery rebate can make a considerable difference:
- $500/kWh for Synergy customers x 8 kWh SigenStor = $4,000 rebate
- $9,100 battery cost (including installation) – $4,000 rebate = $5,100 battery cost after rebate
If we run the cost after the rebate through our Add Battery calculator again, the simple payback decreases from almost 11 years to under 7 years:
The rebate brings the payback well under the SigenStor’s 10-year warranty, making the addition of a battery a lot more sensible.
Interest-Free Loan For Batteries (And Solar)
Eligible applicants can get a no-interest loan from $2,000 to $10,000. They can fund the installation of new, additional or replacement solar panels if installation occurs as part of a solar + storage package. You can repay the loan over 10 years.
How Many Rebates Will There Be?
There will 20,000 rebates in total – up to 19,000 for Synergy customers, and up to 1,000 for Horizon Power customers. With more than 531,000 solar power systems already installed in WA — and more added every day — we expect each round of rebates to be snapped up quickly.
Who Is Eligible?
The rebate is available to all residential properties in WA, including those used for home business.
Which Batteries Are Eligible?
As of April 17 2025, the WA Government hasn’t given details on which batteries will be eligible. What we do know is batteries must have at least 5kWh capacity and be Virtual Power Plant (VPP) ready – but there’s no indication recipients will need to join a VPP to receive the rebate. You can also get the rebate for a new battery if you already one.
Officials still need to hash out many details of the WA Residential Battery Scheme. A good way to stay up to date with what’s happening is to subscribe to the SolarQuotes weekly newsletter.
Tip: Go Solar Now, Add A Battery Later
If you don’t already have a rooftop solar system and don’t need the loan, we recommend getting cracking on installing solar panels now rather than wait. Here’s why:
- You’ll start saving on your electricity bills immediately. Given the scheme will be rolled out over time in multiple rounds and timing of subsequent rounds is at this point unknown, not to mention installation lead times, those savings can really add up.
- Installing a battery is a much faster process than installing a full solar + storage system.
- If you choose the same company to install your battery (note that you don’t have to), they’ll already be familiar with your system – and you.
- Following on from the above; as an existing customer, there’s less chance of winding up towards the bottom of a lengthy installation waitlist.
- Potentially better pricing on solar now. Installers in Western Australia are generally quieter at the moment as many people are holding off, waiting for the rebate.
How To Get Started
We’re keeping close tabs on what’s happening with the Scheme and keeping in touch with trusted pre-vetted Western Australian installers in our network who plan to participate. Request a solar quote now and let us know when it asks if you want to provide additional information if you’re interested in the battery rebate when it launches.
We’ll then match you with up to three local installers who will each tailor a no-obligation quote for solar that’s ready for a fuss-free battery installation. They’ll also discuss battery options with you down the track so you can hit the ground running when the WA battery rebate is live. But as mentioned, you won’t have to buy a battery from that installer. If you wish, you can come back to SolarQuotes at a later date and get battery quotes from other companies to compare.
Another benefit of arranging a solar/battery installation in Western Australia via SolarQuotes is the extra peace of mind provided through our unique Good Installer Guarantee.
Further Information
Not sure if solar or a battery system suits you — or what to look for? Our hugely popular Solar 101 and battery guides will point you in the right direction. If you do not live in WA, check out which states also offer battery rebates.