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WA Residential Battery Scheme and the federal Cheaper Home Batteries Program

Solar battery rebate WA: check what you can claim

Use this solar battery rebate WA calculator to see what comes off your system price. Choose your retailer and battery size to see the state rebate, the federal discount and the combined total. Then read how to get it.

Figures checked 5 October 2026 from wa.gov.au and dcceew.gov.au.

Rebate calculator

Who sends your electricity bill?

Which am I? Synergy bills Perth and the south-west grid. Horizon Power bills regional WA outside it, such as the Pilbara and the Kimberley. Use it to see how your solar battery rebate WA amount combines with the federal discount.

Usable battery size
Interested in the interest-free loan?

Eligible households can add an interest-free loan of up to $10,000 through the WA scheme. It does not change the rebate below.

WA rebate
$1,300
Estimated federal discount
$3,510
Combined
$4,810
Get my exact rebate quote Or call 1300 477 172

Synergy: $130 x 10 kWh (the WA cap) = $1,300. Federal: about $260 x 13.5 kWh = $3,510.

To claim: the battery must be on the approved product list, installed by an accredited installer, connected to a virtual power plant for the WA rebate, and there is one WA rebate per property. Estimate only; your quote shows exact figures. Figures checked 5 October 2026.

What is the WA solar battery rebate?

The WA solar battery rebate is a one-off payment under the WA Residential Battery Scheme that takes up to $1,300 (Synergy customers) or $3,800 (Horizon Power customers) off a new home battery of 5 kWh or more, claimed through an approved retailer such as Perth Solar Direct. It stacks with the federal Cheaper Home Batteries Program discount of around 30%, so a 13.5 kWh solar battery rebate in Perth for a Synergy household comes to about $4,810 combined. Figures checked 5 October 2026 against wa.gov.au and dcceew.gov.au.

  • WA rebate: $1,300 Synergy or $3,800 Horizon Power, based on the first 10 kWh usable
  • Federal discount: about 30% of an eligible battery of 5 kWh or more, tapering above 14 kWh since 1 May 2026
  • Conditions: approved battery and installer, a virtual power plant for the WA rebate, one WA rebate per property
  • Optional finance: no-interest loan of up to $10,000 for households earning under $210,000

Solar battery rebate WA at a glance

Start with your electricity retailer, then add the federal discount.

Figures checked 5 October 2026

Federal support

Cheaper Home Batteries Program

Runs alongside the WA scheme, and you can claim both on the same battery. It takes about 30% off the installed cost of an eligible battery, roughly $260 per usable kWh from 1 May 2026.

How much could apply to you?

Use the calculator above for an estimate based on your battery size. The federal discount is where a bigger battery earns more.

Explore federal support

WA battery rebate eligibility

Am I eligible for the WA battery rebate?

Eligibility depends on your electricity account, property, proposed battery system and participation in a virtual power plant. Explore the key requirements below.

Read the official WA eligibility requirements (opens in a new tab)

What needs to be checked

  1. Electricity account

    A residential Synergy or Horizon Power account at the installation address.

  2. Property and applicant

    Your property and applicant circumstances must meet the scheme rules, with one WA rebate per property.

  3. Approved equipment

    The battery must be on the approved product list with at least 5 kWh usable capacity, and a new installation rather than a battery you already have.

  4. Virtual power plant

    Connecting to a virtual power plant (VPP) is required for the WA rebate.

  5. Installation and application

    Installed by an accredited installer through an approved retailer, who claims the rebate off your price.

Explore your situation

Start with your electricity retailer

Select an option to see relevant guidance. No contact details needed.

Who sends your electricity bill?

Your Synergy pathway

Synergy bills Perth and the south-west grid. The WA rebate for Synergy customers is $130 per usable kWh up to 10 kWh, a maximum of $1,300. Your proposed equipment and VPP arrangement need to meet the scheme requirements.

What is a VPP?
What best describes your property?

Guidance only. These answers do not confirm eligibility.

WA and federal eligibility are assessed separately.Explore federal battery requirements

How WA and federal support work together

Applicable rebates reduce your system price. An optional loan helps finance the remaining cost and must be repaid.

  1. System priceBefore incentives
  2. WA rebateSubject to eligibility
  3. Federal discountSubject to eligibility
  4. Remaining costThe amount left after applicable support

Check whether your quote already includes the incentives, so they are not deducted twice.

How are the rebates applied to my quote?

Both incentives come off the price rather than being paid to you later. The WA rebate is claimed by the approved retailer that installs the battery, and the federal discount is applied by the installer through small-scale technology certificates (STCs). Our quote shows the net price with both taken off, and the exact figures are set on the day of installation. Sources: WA Residential Battery Scheme and Cheaper Home Batteries Program.

What are the federal battery eligibility requirements?

The federal Cheaper Home Batteries Program gives a discount of around 30% on the upfront cost of an eligible battery of 5 kWh to 100 kWh. The battery must be on the Clean Energy Council approved list, installed by an accredited installer, and connected to new or existing rooftop solar. The discount is delivered through small-scale technology certificates and depends on the capacity installed and the installation date. Since 1 May 2026 the support tapers with size: the full rate applies to the first 14 kWh, 60% of the rate from 14 to 28 kWh, and 15% from 28 to 50 kWh. It can be claimed together with the WA rebate on the same battery. Eligibility is set by the Renewable Energy (Electricity) Regulations 2001. Source: dcceew.gov.au, Cheaper Home Batteries Program (page updated 9 June 2026).

How does battery size affect the support?

The WA rebate is capped at 10 kWh of usable capacity, so a 13.5 kWh battery and a 10 kWh battery attract the same WA amount. The federal discount keeps growing with capacity, at the full rate up to 14 kWh and at reduced rates above that, so a larger battery earns a larger federal discount. Battery size is the main lever on the combined figure, which is why our quotes start from how much power you use in the evening rather than from a fixed package. See what else affects price on our solar battery page.

What is a virtual power plant and what does it mean for me?

A virtual power plant is a program that can call on many home batteries at once to support the grid at peak times, usually early evening. To claim the WA rebate your battery must be able to join one and stay connected to the internet. The battery is still yours to use every day. The VPP operator draws on a share of it at set times under the agreement you sign, and the terms of that agreement, including any payments, are set by the operator.

Which batteries are eligible?

Both schemes keep an approved product list. We only quote batteries that meet the scheme's requirements, and we confirm the exact model and its approved usable capacity on your quote. If you are weighing up an all-in-one system, our Sigenergy SigenStor page covers what it does and how it is sized.

Do I need solar panels already?

You need solar to charge the battery. If you do not have panels yet, or your system is old and small, we can quote solar and battery together. The WA interest-free loan can cover new solar panels installed with the battery, and new panels attract their own federal small-scale technology certificates.

I already have a battery. Can I claim?

Possibly. The WA rebate can apply to an additional or replacement battery, but only one WA rebate is paid per property. The federal discount can apply to added or replacement capacity if your existing battery did not receive support under the program. Batteries installed before 1 July 2025 cannot be claimed. Ask us and we will check what applies to your setup.

See a worked example: 13.5 kWh, Synergy
WA rebate$1,300
Federal discount$3,510
Combined support$4,810

Assumptions: a Synergy customer installing a 13.5 kWh usable battery between May and December 2026. WA rebate: the scheme maximum of $1,300, based on the first 10 kWh. Federal discount: an estimate at about $260 per usable kWh, which reflects the 6.8 STCs per kWh that apply to installations in that period at the full rate for the first 14 kWh, valued at roughly $38 per certificate. The exact federal amount is set by the STC price on the day. This example shows support only; your system quote determines the remaining cost.

Optional no-interest loanRepayable finance of up to $10,000 for eligible households, not an additional rebate.
Loan requirements

Back to rebate calculator

What battery size fits your home?

Compare capacity, then match it to your evening usage, solar generation and backup needs.

Illustrative home battery for the solar battery rebate WA guide, cream brick bungalow

5.2 kWh

Compact configuration

1 battery module

Consider for
Lower evening energy use
Check first
Available solar surplus

Check how much electricity you use after sunset and whether your solar system has enough surplus to charge the battery. What decides battery size

Illustrative render of a stacked home battery on a white rendered wall beside a side path

10.4 kWh

Medium configuration

2 battery modules

Consider for
More energy use after sunset
Check first
Evening load and solar surplus

Compare your evening consumption with available solar generation, inverter compatibility and any reserve you want for backup. How the all-in-one system is sized

Illustrative render of a three-module home battery on a charcoal brick wall near a garage

23.4 kWh

Larger configuration

3 battery modules

Consider for
Higher overnight energy demand
Check first
Usable capacity and compatibility

Review overnight demand, charging opportunities and system compatibility. Backup capability also depends on the inverter, gateway and selected circuits. Ask for a sizing assessment

Capacity alone does not determine backup power or runtime. Final sizing needs a system assessment.

Illustrative AI-generated installation scenes.

Technician checking an existing solar inverter and switchboard for a solar battery rebate quote (illustrative scene)

Already have solar? Check your solar battery rebate WA eligibility here

We'll check your current system and inverter compatibility, confirm what battery options are available for your setup and design a solution that matches your usage and goals.

  • Check your existing solar system compatibility
  • Confirm the best battery size for your needs
  • Understand the cost after rebates and available finance
  • Get expert advice from a local Perth team
Check my eligibility Learn more about solar batteries

How your battery application works

Explore each stage, from initial checks to installation and commissioning.

Select a step to see what happens

Step 01 / 06

Confirm the conditions that apply to you

Confirm your electricity retailer, that the property is your home and that the battery and installer meet the WA and federal conditions before anything is quoted. Our eligibility explorer covers the main questions.

What you provide

  • Recent electricity bill showing your Synergy or Horizon Power account
  • Property ownership details, such as a rates notice
  • Whether you already have solar and its size

What we review

  • Which retailer-based WA rebate applies
  • Federal program conditions for the battery
  • Property and grid connection details

Your application pathway depends on the system and relevant program requirements.

Optional finance

Can an interest-free loan help with the upfront cost?

Eligible households may be able to finance part of their solar and battery installation through the WA scheme. Loans of up to $10,000 are available to households with a gross income under $210,000. The loan must be repaid and is assessed separately from rebate eligibility.

Finance, not an extra rebate

A loan spreads eligible costs over repayments; it does not increase your rebate.

Read the official loan requirements (opens in a new tab)

Who can apply?

The loan is assessed by Plenti, the scheme's administrator and financier, separately from the rebate. You need to be a WA resident aged 18 or over, an Australian permanent resident and a Synergy or Horizon Power customer, with a gross household income under $210,000. A credit check and Plenti's lending criteria apply, so qualifying for the rebate does not guarantee a loan.

View eligibility requirements (opens in a new tab)

What are the loan terms?
  • Borrow $2,001 to $10,000 with zero interest for the whole term
  • Repay over 3 to 10 years
  • No early repayment fees; only a capped late fee applies if payments are missed
  • The combined rebate and loan cannot exceed the total purchase and installation cost
Can the loan cover solar panels too?

Yes. The loan can cover the battery plus new or upgraded equipment such as inverters and solar panels, as long as they are installed with the battery. That suits homes with no solar yet, or an older system that needs an upgrade before a battery makes sense.

Does taking the loan change the rebate?

No. The rebate is the same whether you take the loan or not, and the loan is assessed separately from rebate eligibility. It simply spreads the remaining cost over repayments with no interest.

Loan approval is separate from your rebate and installation quote.

Your questions, answered

Common questions about the WA solar battery rebate

Explore the practical details before taking your next step.

Can I add a battery to my existing solar system?

A compatibility assessment checks your current inverter, system design and energy use before suitable battery options are recommended.

Many existing systems can take a battery, but some need a new hybrid inverter or a reconfiguration first. That is part of the assessment, not something you need to work out yourself.

Explore existing-solar options

Which battery systems can I choose?

Any system that meets the current program requirements and suits your home. For the WA rebate the inverter must be on your retailer's supported solutions list and the battery modules on the Clean Energy Council approved list, and the system must be able to join a virtual power plant. We only quote combinations that meet those rules and are compatible with your existing equipment.

Which batteries are eligible

What should I prepare before requesting a quote?

Nothing needs to be uploaded here. It helps to have to hand:

  • A recent electricity bill showing your Synergy or Horizon Power account
  • Details of any existing solar: inverter model and system size
  • A rough idea of your evening usage and what you would want to keep running in a blackout
  • Proof of ownership, or landlord consent if you rent, for the application stage
  • Household income details, only if you want the no-interest loan
How much is the WA solar battery rebate in 2026?

Up to $1,300 for Synergy customers and up to $3,800 for Horizon Power customers, paid on the first 10 kWh of usable capacity. The federal Cheaper Home Batteries discount comes on top, so the combined solar battery rebate in Perth for a 13.5 kWh battery is about $4,810.

Check your figure in the rebate calculator

How does joining a VPP affect my household?

The WA rebate requires you to take part in an approved virtual power plant. Horizon Power customers use Horizon Power’s; Synergy customers can choose Synergy’s or another approved provider. The operator can draw on a share of your battery at set peak times under the agreement you sign, and you are credited for what it uses. Terms differ between products, so review the agreement, the access limits and the credits before you commit. The WA Government notes the retailer agreements run for two years, after which you can opt out.

What a VPP means for you

Can renters or landlords apply?

It depends on the applicant and the property rather than a blanket rule. The applicant must be a WA resident aged 18 or over, an Australian permanent resident and the Synergy or Horizon Power account holder. The property must be a standalone home or unit used mainly as a residence, with an ongoing internet connection, owned or rented by the applicant, with the landlord's consent if it is rented. Government-owned properties and properties owned by telecommunications or mining companies are excluded. A landlord can install at a rental with a long-term tenant in place, with the tenant's consent. Check the official criteria for your circumstances.

Official eligibility criteria (opens in a new tab)

What affects application and installation timing?

Several steps sit outside our control: the scheme's confirmation of your application, grid connection approval from Western Power or Horizon Power, equipment stock and VPP testing after the install. We give you a realistic timeline with your quote rather than a guarantee.

Two things reward acting sooner. The WA scheme is capped at 100,000 rebates statewide and closes once they are allocated, and the federal discount rate steps down at six-monthly intervals, so the same battery attracts a smaller federal discount the longer you wait.

See the application stages

Who is eligible for the solar battery rebate in WA?

WA residents aged 18 or over who are Synergy or Horizon Power customers, installing a new approved battery of at least 5 kWh at a home they own or rent, through an accredited installer, and joining a virtual power plant. One WA solar battery rebate applies per property, and batteries installed before 1 July 2025 are not eligible.

Use the eligibility explorer

Ready to discuss your battery options?

Tell us about your home and existing solar using the enquiry form below.

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What happens next

  1. We call youTo confirm your retailer, your roof and how you use power in the evening
  2. You receive a written quoteWith the WA rebate and the federal discount shown as line items
  3. We confirm next stepsWe lodge the applications and book the accredited installation