How to Apply for the WA Home Battery Subsidy in 2026
A home battery can cut your power bills significantly and keep your lights on during outages. But for many Perth homeowners, the upfront cost has been the sticking point. That’s where the WA Home Battery Subsidy comes in.
The WA Government offers a subsidy of up to $7,500 to eligible homeowners who install an approved battery system. The best part? You don’t fill out a single government form yourself. Your installer handles the whole application through Synergy on your behalf, and the saving comes straight off your invoice on the day.
This guide walks you through every step of the process, from checking your eligibility to the moment your battery is switched on.
Here’s what we’ll cover:
- Whether you qualify
- How to choose an approved battery and installer
- What the application process actually looks like
- What to expect on installation day
- How the subsidy is applied to your cost
Step 1: Check Your Eligibility
Before anything else, you need to confirm you tick the right boxes. The good news is the eligibility criteria are straightforward, and most Perth homeowners with solar already meet them.
You’ll need to meet all of the following:
- You own your home. Renters and property investors are not eligible. The subsidy is for owner-occupiers only.
- Your property is connected to the Synergy network. If you’re in a regional area serviced by Horizon Power rather than Synergy, this particular subsidy doesn’t apply to you.
- Your household income is below the threshold. The subsidy is means-tested. Households with a combined taxable income under $210,000 per year are eligible. You’ll need to provide evidence of income as part of the process.
- You have an existing solar panel system, or you’re installing one at the same time. The battery subsidy is designed to pair with solar, so you can’t claim it for a standalone battery without panels.
- You haven’t previously received this subsidy. It’s a one-per-household scheme.
Not sure if you’re on the Synergy network? Check your electricity bill. Your retailer’s name will be printed clearly at the top. If it says Synergy, you’re in.
If you tick all of those boxes, you’re ready to move on to the next step.
Step 2: Choose an Approved Battery
Not every battery on the market qualifies for the subsidy. The WA Government maintains an approved product list, and your chosen battery must appear on it.
The list includes well-regarded brands and models that have been assessed for safety, performance, and compatibility with the WA grid. You’ll find options across a range of storage capacities, so there’s usually something that suits both your energy usage and your budget.
What to look for when choosing a battery:
- Storage capacity (kWh). A larger battery stores more energy, which is especially useful if you want backup power during outages or if you have high evening energy use.
- Warranty length. Most quality batteries come with a 10-year warranty. Check what the manufacturer guarantees in terms of remaining capacity at the end of that period.
- Compatibility with your solar inverter. Some batteries work best with specific inverter brands. Your installer will confirm this before purchase.
- Physical size and installation location. Batteries need to be installed in a suitable spot, usually in a garage or on an external wall. Some are more compact than others.
A good installer will walk you through the approved options and recommend a battery that matches your home’s actual energy profile, not just the cheapest or most expensive one available.
Step 3: Choose an Approved Installer
This step matters more than most people realise. To access the subsidy, your installation must be carried out by a business that is registered with the WA Government as an approved installer under the scheme. If you use someone who isn’t on that list, your application simply won’t go through, and you’ll miss out on the subsidy entirely.
Why your choice of installer is so important:
- Only approved installers can lodge the application. The subsidy application goes through Synergy’s portal, and only registered businesses have access to it. You cannot apply directly as a homeowner.
- The installer is responsible for compliance. All work must meet WA electrical safety standards. A registered installer knows exactly what’s required and carries the appropriate licences.
- Your warranty and aftercare depend on it. Using a reputable, approved installer protects your investment. Shoddy installation can void manufacturer warranties and create ongoing problems.
When comparing installers, ask whether they have in-house electricians (rather than subcontracting the work), what workmanship warranty they offer, and how they handle any issues after installation. These questions separate the reliable operators from the ones who disappear once the job is done.
Step 4: Your Installer Lodges the Application
Once you’ve confirmed your eligibility, chosen your battery, and selected an approved installer, the paperwork side of things is handled almost entirely by your installer. This is one of the most misunderstood parts of the process: you do not apply to the WA Government or Synergy directly.
Here’s how it works:
- You provide your installer with the required documents. This typically includes proof of income (such as a recent tax assessment or Centrelink statement), proof of home ownership, and your Synergy account details.
- Your installer submits the application through Synergy’s online portal. They enter your details, confirm the approved battery model, and lodge the application on your behalf.
- Synergy reviews and approves the application. This usually happens within a few business days. Your installer will let you know once approval comes through.
- An installation date is confirmed. Once the application is approved, you and your installer agree on a date that works for both parties.
You won’t receive a separate approval letter or reference number to manage. Your installer tracks the application status and keeps you informed. If anything is missing or needs clarification, they’ll come back to you directly.
The whole process from submitting the application to receiving approval is typically quick, especially if all your documents are in order from the start.
Step 5: Installation Day
Installation day is usually straightforward. A qualified electrician will arrive at your property and complete the job in a single visit, typically within a few hours depending on your setup.
What to expect on the day:
- A brief assessment of your switchboard and solar setup. The installer will check that everything is compatible before starting work.
- Physical installation of the battery unit. The battery is mounted in your chosen location, usually a garage wall or external wall with suitable shelter.
- Electrical connections and system configuration. The battery is wired into your solar system and switchboard, then configured to work with your household’s energy usage patterns.
- A walkthrough and handover. Once everything is running, the installer will show you how the system works, explain the monitoring app (if applicable), and answer any questions.
You’ll need to be home for the installation, and you should expect your power to be switched off briefly while the electrical connections are made. Most homeowners find the whole process is done and dusted well before lunchtime.
Important: Do not schedule installation before your application has been approved by Synergy. Work carried out before approval is confirmed will not qualify for the subsidy.
How the Subsidy Is Applied: Point of Sale, Not a Rebate
This is one of the most important things to understand about the WA Home Battery Subsidy, and it’s something that surprises a lot of people.
You do not pay the full price and wait to be reimbursed. The subsidy is deducted directly from your invoice at the time of purchase. This means you only ever pay the discounted amount upfront. There’s no claiming, no waiting for a cheque, and no dealing with government reimbursement processes after the fact.
Here’s a simple example of how it works:
| Battery System Cost (Before Subsidy) | Subsidy Amount | Amount You Pay |
|---|---|---|
| $12,000 | $7,500 | $4,500 |
| $9,500 | $7,500 | $2,000 |
| $8,000 | $6,000* | $2,000 |
*Subsidy amount varies based on battery capacity and system specifications. Your installer will confirm the exact subsidy applicable to your chosen system.
The installer claims the subsidy from Synergy after the installation is complete. From your perspective, the saving is instant and automatic. You simply pay what’s left on your invoice, and that’s it.
Frequently Asked Questions
Can I apply for the subsidy if I don’t have solar panels yet?
Yes. You can install solar panels and a battery at the same time and still qualify for the subsidy. The requirement is that a solar system is installed alongside the battery, not that you already have one. Your installer can quote both together.
How long does the application and approval process take?
In most cases, Synergy approves applications within a few business days. The total time from first enquiry to installation depends largely on how quickly you can provide your documents and how booked out your installer is. Many homeowners go from initial consultation to installation within two to three weeks.
Is the $7,500 subsidy the same for every battery?
Not necessarily. The subsidy amount is linked to the battery’s storage capacity. Larger batteries attract a higher subsidy, up to the maximum of $7,500. Smaller systems may receive a lower amount. Your installer will confirm the exact figure before you commit to anything.
What happens if I sell my home after getting the subsidy?
The subsidy is tied to the installation at that property, not to you personally. If you sell the home, the battery stays with the property and becomes a selling point. There is no obligation to repay the subsidy if you move.
Do I need to do anything after installation to finalise the subsidy?
No. Once the installation is complete, your installer handles the final claim with Synergy. You don’t need to submit anything further. Keep a copy of your invoice for your own records, but the process is finished from your end the moment the battery is installed and signed off.
Let Talk Energy Handle the Whole Process
Applying for the WA Home Battery Subsidy doesn’t need to be complicated, and with the right installer, it isn’t.
Talk Energy is a WA Government approved installer for the Home Battery Subsidy scheme. Our team handles every step of the application process on your behalf, from checking your eligibility and helping you choose the right battery from the approved product list, to lodging your application through Synergy and managing the installation from start to finish.
We use in-house electricians (no subcontractors), back all our work with a 20-year workmanship warranty, and have helped hundreds of Perth homeowners access this subsidy and start saving on their power bills.
Ready to find out how much you could save? Book a free, no-obligation consultation with the Talk Energy team. We’ll confirm your eligibility, recommend the right battery for your home, and give you a clear quote with the subsidy already applied.
