WA Battery Scheme 2026: how to claim your $1,300 battery rebate

The WA Battery Scheme cuts the upfront cost of a home battery by up to $1,300, applied straight to your installer's invoice at point of sale. To actually get it, your battery needs to be paired with an inverter on Synergy's approved list, connect to the grid, and go in through an SAA-accredited installer, and you need to sign up to Synergy's Battery Rewards VPP program for a minimum two-year term. That last one catches people out: tick every other box and skip the VPP sign-up, and the rebate doesn't apply.

What is the WA Battery Scheme?

The WA Battery Scheme is a state government program that subsidises home battery storage for Synergy residential customers. It pays $130 per kWh of usable battery capacity, up to a maximum of $1,300 for batteries 10kWh and above.

Your installer applies it as a discount on your invoice, so you never handle the rebate directly. They claim it back from the scheme administrator once your installation is complete.

Eligible households (income under $210,000) can also access an interest-free loan of up to $10,000 through the scheme to spread the remaining cost. For households that would otherwise finance through a personal loan, the interest saved can be worth more than the rebate itself.

How much can you get?

Larger batteries get the same $1,300 maximum: there's no extra rebate for capacity above 10kWh, and it's $1,300 per property even if you install more than one battery. If you're weighing an 8kWh battery against a 10kWh one, the extra $260 rebate for stepping up is worth factoring into that decision.

One detail worth knowing: the rebate is calculated on your battery's usable storage capacity, not its rated or nameplate capacity. The two can differ, so confirm the usable capacity figure with your installer rather than relying on the brochure figure.

Who qualifies for the WA Battery Scheme rebate?

You need to meet all seven of the following. Miss any one and the rebate won't apply, no matter how good the rest of your application looks.

1. Synergy customer on an eligible residential tariff. The scheme covers residential customers on Synergy's distribution network, the South West Interconnected System (SWIS), on an eligible tariff: currently A1, K1, Midday Saver, or Electric Vehicle Add On. Customers outside SWIS aren't eligible.
2. Residential property. The property has to be a residential dwelling: a house, townhouse, or unit where you're the occupying owner. Commercial premises aren't eligible, and investment properties may have different eligibility, so confirm with your installer.
3. New battery installation, with solar. The rebate applies to new battery systems only, installed alongside solar that's already on the roof or going in at the same time. An existing battery being relocated or replaced doesn't qualify.
4. Hardware approved on Synergy's Supported Solutions List (SSL), with at least 5kWh of usable battery capacity. There are two ways to meet this. On a DC-coupled system, the battery is paired with an inverter approved for DER Storage on the SSL. On an AC-coupled retrofit, where the existing solar inverter is not a hybrid, eligibility instead runs through an SSL-listed gateway device that supports both that existing inverter and the new battery, so the inverter itself does not need DER Storage approval. Most mainstream combinations sold in WA are covered either way, but the list changes as new hardware clears testing, so your installer checks it before quoting, not after.
5. Enrolled in Synergy's Battery Rewards VPP. This is the one people miss. The rebate is conditional on joining Synergy's Battery Rewards virtual power plant program and committing to a minimum two-year term. In plain terms: Synergy pools a slice of your battery's stored charge with everyone else enrolled and dispatches it during peak demand, then pays you for the capacity it uses. See what Battery Rewards actually pays before you commit to two years, because backing out early can put the rebate at risk.
6. Grid-connected system. The battery has to connect to the Synergy grid. Standalone off-grid systems aren't eligible.
7. SAA-accredited installer. Your installer needs current accreditation through Solar Accreditation Australia (verify at saaustralia.com.au). Every reputable solar and battery installer in WA already has this, so it's rarely the sticking point.

Is there an income test?

Not for the rebate itself. The $1,300 rebate is open to every eligible Synergy residential customer regardless of income. The income test ($210,000) only applies to the optional interest-free loan.

How does the application actually work?

Your installer handles the whole thing in most cases. You don't lodge anything yourself. Here's the sequence, and what to keep at each step.

Step 1: install the battery and solar system. Your SAA-accredited installer completes the work. Make sure you receive the installation completion certificate (or commissioning report), the electrical Certificate of Compliance, the battery and inverter make, model, and serial numbers, and your Western Power network connection approval if the solar installation is new. You'll want these if anything needs chasing later.

Step 2: your installer lodges the claim. They need to be registered as a scheme participant, and they submit your Synergy account details, the system specifications, and the compliance paperwork. Confirm before installation starts that they'll handle both the rebate application and your Battery Rewards enrolment; some installers bundle both into their quoted service, others leave one or both to you.

Step 3: Synergy reviews it. The application gets checked against the eligibility list above: your tariff, whether your battery's paired inverter is SSL-approved and the battery's eligible capacity, your installer's accreditation, and your Battery Rewards enrolment. Processing times vary and Synergy doesn't publish a fixed turnaround, so ask for a current estimate rather than assuming one.

Step 4: the rebate is applied. The rebate reduces what you pay rather than arriving as a cheque: either as a discount your installer applies at point of sale, or as a credit on your Synergy account after approval. Check with your installer which applies to you, and note that if your bills are already low thanks to your solar, an account credit can take a while to work through, but it doesn't expire.

What if your application stalls?

If a reasonable amount of time has passed with no update, contact Synergy on 13 13 53 and ask for the status of your WA Battery Scheme application. Have your Synergy account number, the application reference if your installer gave you one, and the approximate submission date ready.

The common causes of delay: missing documentation on an incomplete application, SSL verification pending for the inverter in a recently approved pairing, or an account-holder mismatch where the application name doesn't match the Synergy account.

If your installer never submitted the claim, or has gone out of business, ask Synergy about the customer-direct application pathway. The documentation requirements are the same, but you gather the paperwork yourself, and a licensed electrician can prepare the Certificate of Compliance if your original installer is no longer around.

Does the rebate affect the STC solar rebate?

No. The WA Battery Scheme is separate from the federal Small-scale Technology Certificate (STC) rebate that applies to solar panels. Install solar and battery together, and you get both:

• STC rebate on the solar panels, applied at point of sale by the installer
• WA Battery Scheme on the battery, applied at point of sale by the installer

For a 6.6kW solar plus 10kWh battery system in Perth in 2026, both rebates combined typically cut the upfront cost by around $3,000–3,100. (The battery also earns its own separate federal STCs on top.)

Is Tesla Powerwall 3 eligible for the WA Battery Scheme?

No. Powerwall 3 does not qualify for the WA Battery Scheme rebate. Its integrated inverter isn't approved for DER Storage on the SSL, even though the hardware is approved for grid connection, so the $1,300 doesn't apply. If a quote includes a Powerwall 3 with the rebate already knocked off the price, that's a quoting error, not a saving: ask for a corrected quote.

For Powerwall 2, eligibility depends on whether your existing inverter is paired with an SSL-listed gateway device that supports both the inverter and the battery. For any other battery, especially newer or less common hardware, eligibility depends on whether the inverter it pairs with is SSL-approved for DER Storage. Don't take eligibility on faith from any blog post, including this one: ask your installer to confirm current SSL status in writing before you sign.

How do you check the SSL before you buy?

The SSL is updated periodically as Synergy assesses new inverters, so an inverter pairing that isn't approved today might be added later, and vice versa. Before you commit:

1. Ask your installer to confirm the exact inverter your battery pairs with, brand plus model number, is currently approved for DER Storage on the SSL.
2. Request the SSL listing documentation in writing.
3. Confirm your battery's rebate-eligible usable storage capacity with your installer, since it can differ from the battery's rated capacity.

The SSL is publicly accessible through Synergy. Don't rely on a verbal assurance alone: check the exact inverter pairing yourself.

What should I ask my installer before signing?

Four questions before you sign anything:

1. Is the inverter this battery pairs with approved for DER Storage on Synergy's Supported Solutions List?
2. Is the WA Battery Scheme rebate already included in the quoted price?
3. Are you SAA-accredited?
4. Will you handle the Battery Rewards VPP enrolment and the rebate claim on my behalf?

All four should get a straightforward yes. Hesitation on the first two is worth pressing on.

How does the rebate change my battery payback?

A 10kWh battery installed today typically runs $8,000–12,000 before any rebate, depending on brand, install complexity, and who you're buying from. See our full battery cost breakdown for what drives that spread.

In the solar-only vs solar+battery worked example we run elsewhere on this site, a 10kWh battery adds about $9,200 to the system cost once the $1,300 rebate is applied. Set against the roughly $407 a year the battery saves over solar alone, that's a payback of $9,200 ÷ $407 = 22.6 years on the battery component alone: still long on pure ROI. The rebate helps. It doesn't flip the decision for most households.

Where it does swing the decision: households with heavy evening loads, an EV charging overnight, or a genuine need for backup power in a bushfire-prone area, where the battery earns its keep beyond the electricity-bill math.

Model your own battery payback with the current rebate →

---

Scheme details are based on the WA Battery Scheme as administered for Synergy residential customers. Rebate amounts and eligibility can change: confirm current details with your installer or directly with Synergy before purchasing.