WA Solar Battery Rebate: How Much You Can Get & How To Prepare
Last Updated: 24th Jun 2025 Fact-checked by Ronald Brakels
The Western Australian (WA) Government is rolling out their Residential Battery Scheme on July 1, 2025, or possibly earlier. It can be combined with the federal battery rebate, which is also starting July 1, making batteries an excellent investment for almost everyone with solar. Here’s what we know so far – and how you could get ahead of the pack.
There are two elements to the scheme: the battery rebate and a no-interest loan option.
How Much Is The WA Battery Rebate?
- For Synergy customers: $130 per kilowatt-hour of usable battery capacity up to 10 kWh – max rebate $1,300.
- For Horizon Power customers: $380 per kilowatt-hour of usable battery capacity up to 10 kWh – max rebate $3,800.
The federal rebate will come to around $330 per kWh, so with both rebates applied, a 10kwh battery would have its cost reduced by around $4,600 for most properties and by $7,100 for those in the regional Horizon Power area.
Example: Without any rebates, SigenStor Single-Phase 8 kWh battery with a straight forward installation might cost $10,000. But because it has 7.8kWh of usable storage, in the Synergy area it’s eligible for…
- Federal battery rebate: $2,574 ($330 x 7.8kWh = $2,574)
- WA battery rebate: $1,014 ($130 x 7.8kWh = $1,014)
When these two rebates are combined it comes to $3,088 off the $10,000 installed cost of the battery, dropping it down to $6,912.
For a home with a 6.6kW solar system and typical overnight electricity consumption, this battery would save approximately $800 per year, giving a simple payback period of around 8.6 years. As this is within the battery’s warranty, this should make it an effective investment. It’s also reasonable to expect a home battery to last for at least several years past the end of its warranty.
Interest-Free Loan For Batteries (And Solar)
Households with combined annual incomes of under $210,000 will be eligible for a zero interest loan from $2,000 to $10,000. This can be used to pay for batteries and can also contribute to solar systems that are installed at the same time as a battery. The loan is repaid over 10 years.
The simple payback period estimate given above does not account for capital costs, but if the zero interest loan is used, the loan can be repaid with electricity bill savings from the battery, allowing the household to avoid paying capital costs.
How Many Rebates Will There Be?
There will be 100,000 rebates in total. With more than 531,000 solar power systems already installed in WA — and more added every day — we expect strong interest in each round of rebates.
Who Is Eligible?
The rebate is available to all residential properties in WA, including those used for home business.
Which Batteries Are Eligible?
The WA Government hasn’t given details on which batteries will be eligible. What we do know is batteries must have at least 5 kWh capacity and be Virtual Power Plant (VPP) ready – as recipients will need to join a VPP to receive the rebate. You can also get the rebate for a new battery if you already have 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.