WA Battery Rebate
WA Battery Rebate 2026 for Perth Homeowners
Installing a home battery has become more affordable for eligible Western Australian households thanks to a combination of state and federal battery incentives.
For homeowners in Perth, the WA Residential Battery Scheme can provide financial support towards an eligible home battery, while the Australian Government’s Cheaper Home Batteries Program may provide an additional discount.
The two programs can work together, which means eligible Perth households may be able to reduce the upfront cost of adding battery storage to a new or existing solar system.
There are, however, some important conditions. The battery needs to meet approved product requirements, the installation needs to satisfy scheme rules, and participation in an eligible Virtual Power Plant is required for the WA rebate.
SolarAide’s Perth team, based in Bayswater WA, provides solar and battery solutions across Perth and can help homeowners understand how a battery may fit with their existing solar system, electricity usage and future energy needs.
What Is the WA Residential Battery Scheme?
The WA Residential Battery Scheme is a Western Australian Government program designed to make home battery storage more accessible.
Eligible households can receive a one-off rebate towards the purchase and installation of an approved residential battery.
For Perth homeowners connected through Synergy, the state rebate can be worth up to $1,300.
Eligible Horizon Power customers in regional and remote parts of Western Australia can receive up to $3,800.
The maximum state rebate is calculated on up to 10kWh of usable battery capacity. A battery larger than 10kWh may still participate in the scheme, but the WA rebate does not continue increasing beyond the applicable maximum.
For most households in the Perth metropolitan area, the Synergy rebate is the relevant part of the program.
How Much Is the Battery Rebate in Perth?
Eligible Synergy customers can currently receive:
$130 per kWh of usable battery capacity, up to a maximum WA rebate of $1,300.
That means the full state rebate is reached at 10kWh of eligible usable capacity.
This does not mean every Perth household should automatically install a 10kWh battery.
Battery size should still be based on factors such as your evening electricity use, existing solar generation, daytime exports, inverter compatibility and whether you want backup capability.
A properly sized battery is usually more useful than choosing capacity simply because a rebate exists.
Can You Combine the WA and Federal Battery Rebates?
Yes.
The WA Residential Battery Scheme is designed to operate alongside the Australian Government’s Cheaper Home Batteries Program.
The federal program provides a discount of around 30% on the upfront cost of eligible small-scale battery systems, although the actual value varies according to the battery’s usable capacity, installation date, STC entitlement and certificate value.
This means an eligible Perth battery installation may potentially receive support from both programs.
For example, the WA Government currently indicates that an eligible 10kWh battery for a Synergy customer can receive combined state and federal support of around $5,000, although the exact federal component can change over time.
For that reason, homeowners should use the rebate amount shown on a current quote rather than relying on an older online estimate.
Battery incentive programs have an unfortunate habit of changing while old advertisements remain immortal.
How Does the Federal Cheaper Home Batteries Program Work?
The federal program supports eligible battery systems connected to new or existing solar PV.
Eligible batteries can have a nominal capacity between 5kWh and 100kWh, while STC support is available for the first 50kWh of usable capacity.
Since 1 May 2026, federal support is calculated differently depending on battery size:
0–14kWh: full applicable STC factor
Above 14–28kWh: 60% of the applicable STC factor for that additional capacity
Above 28–50kWh: 15% of the applicable factor for that additional capacity
The applicable STC factor also reduces over time.
Larger batteries can therefore still qualify, but the amount of support per additional kilowatt-hour reduces as capacity increases.
This makes proper battery sizing especially important.
Who Can Qualify for the WA Battery Rebate?
Eligibility depends on the household, property, battery equipment and installation.
Current requirements include:
- The applicant must meet the WA scheme’s residency and customer requirements.
- The property must be an eligible residential property in Western Australia.
- The battery must have at least 5kWh of usable capacity.
- The battery and associated equipment must appear on the applicable approved lists.
- The installation must meet the scheme’s accreditation and technical requirements.
- The household must participate in an eligible Virtual Power Plant.
- Only one eligible battery system can receive the WA rebate per property.
- The installation must comply with the applicable Synergy, Western Power or Horizon Power requirements.
The WA Government recommends checking eligibility and using an approved scheme vendor before proceeding with an installation.
Do Perth Homeowners Have to Join a VPP?
Yes.
Participation in an eligible Virtual Power Plant, or VPP, is a requirement of the WA Residential Battery Scheme.
A VPP connects participating household batteries so small amounts of stored electricity can be coordinated to support the electricity grid when required.
For Synergy customers, this may involve Synergy’s eligible VPP arrangement or another qualifying VPP product where permitted under the scheme.
Households participating in a VPP may also receive financial benefits for eligible energy exported during VPP events.
The exact VPP terms should be reviewed before committing to a battery system, particularly if backup power or retaining a certain level of stored energy is important to you.
Can I Get a No-Interest Battery Loan in WA?
Some eligible Western Australian households can also apply for a no-interest loan of up to $10,000.
The current household gross income threshold is less than $210,000 per year.
Eligible loans range from $2,001 to $10,000 and may have repayment periods between three and ten years, subject to the scheme’s lending and credit requirements.
The loan is separate from the rebate.
The rebate reduces the eligible cost of the battery, while the loan can help qualifying households finance some of the remaining purchase and installation cost.
Can I Add a Battery to Existing Solar Panels?
In many cases, yes.
You do not necessarily need to replace your existing rooftop solar system to install a battery.
However, the existing system should be assessed first.
The important questions include whether your current inverter is compatible, how much excess solar you generate, how much electricity you use after sunset, whether your switchboard requires changes and whether the proposed battery configuration meets current WA network requirements.
Some homes may be able to add storage to their existing setup with relatively minor changes.
Others may benefit from an inverter upgrade or a different battery architecture.
The WA scheme specifically allows eligible batteries to be installed alongside existing solar, although additional equipment or system reconfiguration may sometimes be required.
What Size Solar Battery Is Right for a Perth Home?
There is no single battery size that suits every Perth household.
Before choosing capacity, consider how your home actually uses electricity.
A household that exports significant solar energy during the day and uses substantial electricity in the evening may have a very different battery requirement from a home where most electricity is consumed while the solar panels are already generating.
SolarAide considers factors such as:
Daytime solar generation
Solar exports
Evening and overnight consumption
Existing inverter and solar capacity
Future EV charging or electrification
Available installation space
Desired backup capability
Household budget
Federal guidance also recommends matching battery size to household electricity use, solar production and inverter capability rather than assuming a larger battery will always produce a better outcome.
Can a Solar Battery Provide Blackout Backup?
Potentially, but it depends on the equipment and system design.
Installing a battery does not automatically mean the entire house will remain powered during a grid outage.
Backup capability can depend on the battery, inverter, switching equipment and electrical configuration.
Some homeowners choose to back up only essential circuits such as refrigeration, lighting, internet equipment and selected outlets.
Others may want greater backup coverage.
If blackout protection is one of your main reasons for installing a battery, it should be included in the system design from the beginning.
How Do You Apply for the WA Battery Rebate?
For the WA Residential Battery Scheme, the homeowner does not normally submit the government rebate application independently.
The general process is:
1. Check your eligibility
Confirm your property, electricity retailer and household meet the current scheme requirements.
2. Choose eligible equipment
The proposed battery and related equipment need to satisfy the applicable approved-product requirements.
3. Get a quote from an approved vendor
Your quote should clearly explain the system, eligible state rebate and applicable federal battery support.
4. Complete the rebate application
Under the WA scheme, the approved battery vendor submits the rebate application on behalf of the customer.
5. Apply for the loan if required
If you choose the no-interest loan and meet the eligibility requirements, the scheme administrator will manage the additional finance process.
6. Complete installation and commissioning
The system is then installed and connected subject to the relevant technical and network requirements.
How Long Will the WA Battery Rebate Be Available?
The WA Government says the Residential Battery Scheme will continue until the planned 100,000 rebates have been distributed.
Based on current government information, the scheme is expected to remain available into 2027, but that is an estimate rather than a guaranteed closing date.
Homeowners should therefore check current availability when they are ready to proceed rather than relying on an estimated future deadline.
WA Battery Rebate FAQs
How much is the WA battery rebate for Perth homeowners?
Eligible Synergy customers can receive up to $1,300, based on $130 per kWh of usable battery capacity up to 10kWh.
Is there a separate federal battery rebate?
The Australian Government’s Cheaper Home Batteries Program provides support through STCs. For eligible battery systems, the program is designed to provide an upfront discount of around 30%, although the actual value varies.
Can I receive both the WA and federal battery incentives?
Yes. Eligible installations may receive both WA Residential Battery Scheme support and assistance through the federal Cheaper Home Batteries Program.
Do I have to join a VPP?
Yes. Participation in an eligible VPP is required to receive the WA Residential Battery Scheme rebate.
Is there an income limit for the WA battery rebate?
The state battery rebate itself does not use the $210,000 household income threshold. That income requirement applies to the optional no-interest loan.
Can I add a battery to my existing Perth solar system?
Potentially, yes. Existing solar systems can be paired with eligible battery storage, although inverter compatibility, electrical configuration and network requirements need to be assessed first.
Does a larger battery receive a larger WA rebate?
Only up to a point. The WA state rebate is calculated on usable capacity up to 10kWh. A larger eligible battery can still participate, but the maximum state rebate remains $1,300 for Synergy customers or $3,800 for Horizon Power customers.
Is the battery rebate still available in 2026?
Yes. The WA Government currently states that the scheme remains open and will continue until its planned allocation of 100,000 rebates has been distributed.
Explore Your Battery Options in Perth
For Perth homeowners with rooftop solar, battery storage can provide a way to use more of the electricity generated during the day later in the evening.
Current state and federal incentives can also reduce the upfront cost of an eligible battery system, but the right solution still depends on your existing solar, household consumption and future electricity requirements.
SolarAide’s Perth team is based in Bayswater WA and provides solar and battery solutions across the Perth metropolitan area.
We can assess your current solar setup, household energy use and battery requirements so you can understand what type of system may suit your home.
Get a free solar battery assessment for your Perth home.