Thinking about installing a home battery in Western Australia?

The WA Residential Battery Scheme can significantly reduce the upfront cost of an eligible home battery, with state rebates available alongside the Australian Government’s Cheaper Home Batteries Program.
In 2026, eligible WA households may be able to access:

Up to $1,300 in WA Government rebate for Synergy customers
Up to $3,800 in WA Government rebate for Horizon Power customers
Additional support through the Federal Cheaper Home Batteries Program
Up to $10,000 in no-interest finance for eligible households

The WA Government confirms that the state rebate is additional to the federal battery program.
But getting the maximum available support isn’t simply about buying the biggest battery.
Your eligibility can depend on your electricity retailer, battery model, battery capacity, property, installer, VPP participation and installation requirements.
So the important question isn’t simply:

“How much is the WA battery rebate?”

The better question is:

“How much support can I actually receive, what will I pay after the rebates and is this battery right for my home?”

This guide explains the WA Battery Scheme in simple terms so you can make a more informed decision.

Want to Know How Much You Could Save?

Your actual battery cost can depend on:
Battery Price → WA Rebate → Federal Incentive → Installation → Final Price
Get a personalised battery assessment based on your electricity usage, existing solar and preferred battery size.
Get a Free WA Battery Quote

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 affordable.
The scheme provides:

Upfront battery rebates
No-interest loans for eligible households
Support for battery installations
Participation in Virtual Power Plants

The scheme operates alongside the Federal Government’s Cheaper Home Batteries Program, allowing eligible households to receive state and federal support.
The WA scheme opened on 1 July 2025 and remains available in 2026. The WA Government currently expects the scheme to be available until 2027, subject to program conditions and funding.

How Much Is the WA Battery Rebate in 2026?

The WA Government rebate depends on whether you are a Synergy or Horizon Power customer.

Synergy customers

Eligible Synergy customers can receive:
$130 per usable kWh
up to a maximum of:
$1,300

Horizon Power customers

Eligible Horizon Power customers can receive:
$380 per usable kWh
up to a maximum of:
$3,800
The WA Government confirms that the state rebate is capped at 10 kWh, meaning a battery larger than 10 kWh can still participate but does not receive additional WA rebate beyond the applicable maximum.

Example

For a qualifying 10 kWh battery:

Customer	WA Government rebate
Synergy	Up to $1,300
Horizon Power	Up to $3,800

This is before considering the separate federal battery incentive.

Can You Get Both the WA and Federal Battery Rebates?

Yes, eligible households can receive the WA Government battery rebate alongside the Federal Government’s Cheaper Home Batteries Program.
This is one of the most important financial advantages of the WA scheme.
For example, the WA Government states that a qualifying 10 kWh battery can receive:
Synergy
Up to $1,300 WA rebate + applicable federal incentive
Horizon Power
Up to $3,800 WA rebate + applicable federal incentive
The exact combined amount depends on the federal battery incentive applicable to the system and installation date.

Don’t confuse the two incentives

The WA rebate and federal battery incentive are separate programs.
Your quote should clearly show:
WA Government Rebate
Federal Battery Incentive
Battery Price
Installation
Final Out-of-Pocket Cost

How Does the Federal Battery Rebate Affect WA Homeowners in 2026?

The Federal Cheaper Home Batteries Program also changed in 2026.
From 1 May 2026, the federal battery STC structure changed, including capacity-based tapering and six-monthly reductions in the applicable STC factor.
This means the federal component of your battery incentive can vary according to:

Battery capacity
Usable capacity
Installation date
Applicable STC factor
Equipment eligibility
System configuration

Therefore, don’t assume that a quote from 2025 or early 2026 has the same federal incentive available today.

Ask your installer:

“Which federal battery incentive has been included in my quote, and what installation date was used?”

Who Is Eligible for the WA Battery Rebate?

The WA Government’s current eligibility requirements include several conditions.
Generally, you need to:

Be a permanent Australian resident
Be 18 years or older
Be a Synergy or Horizon Power customer
Install an eligible battery at a qualifying WA residential property
Use an eligible battery product
Use an accredited scheme installer
Participate in an eligible VPP
Meet applicable technical and property requirements

The official eligibility requirements should always be checked before signing a contract because the scheme has specific product, property and installation conditions.

Can I Get the WA Battery Rebate If I Already Have Solar?

Yes.
The WA Government confirms that a battery can be installed on an existing solar system.
However, your existing system may require additional technology, equipment or reconfiguration to accommodate the new battery.
This makes the scheme particularly relevant if you already have rooftop solar but:

Export a lot of solar during the day
Buy electricity from the grid at night
Have high evening consumption
Run air conditioning after sunset
Have a pool
Own an EV
Want greater energy independence

Instead of:
Solar → Home → Excess → Grid
you could potentially use:
Solar → Home → Battery → Evening Consumption
The actual financial benefit depends on your energy usage, solar generation and electricity tariff.

What Batteries Qualify for the WA Rebate?

Not every battery sold in WA automatically qualifies.
The current WA Government requirements state that eligible goods must include a new, VPP-capable battery and appear on the relevant Synergy Supported Solutions List or Horizon Power Supported Solutions List.
Eligible products must also be included on the Clean Energy Council’s approved batteries and inverters list and comply with applicable technical requirements.

Before purchasing, ask:

“Is this exact battery and inverter configuration approved for the WA Residential Battery Scheme?”

Don’t rely only on a manufacturer’s brochure or salesperson’s statement.

What Battery Size Is Eligible for the WA Rebate?

The WA scheme applies to eligible batteries from 5 kWh usable capacity.
The state rebate is calculated up to a 10 kWh cap.
This means a larger battery does not automatically receive a larger WA Government rebate.
For example:

Battery usable capacity	WA rebate treatment
5 kWh	Eligible, subject to requirements
7 kWh	Eligible, calculated by applicable rate
10 kWh	Maximum WA rebate
15 kWh	WA rebate remains capped
20 kWh	WA rebate remains capped

However, the federal battery incentive can continue to apply beyond the WA 10 kWh state rebate cap, subject to the federal program rules.

Should You Buy a 10 kWh Battery to Maximise the WA Rebate?

Not necessarily.
This is an important distinction.
A 10 kWh battery may maximise the WA state rebate, but that does not automatically mean it is the best battery for your home.
Your ideal battery size should consider:

Daily electricity consumption
Existing solar capacity
Evening electricity usage
Overnight consumption
EV charging
Pool pumps
Air conditioning
Hot water
Electricity tariffs
Backup requirements
Future electricity usage

The right question is:

“What battery size gives me the best combination of usable capacity, upfront cost, rebate and expected savings?”

How Much Can a WA Household Save?

The total financial benefit can come from several different sources.

Upfront

WA Government rebate
Federal battery incentive

Ongoing

Solar self-consumption
Reduced grid electricity purchases
Potential VPP rewards
The WA Government says households participating through the scheme can use their batteries through VPPs to provide stored energy to the market and receive financial benefits.
But your actual savings will depend on your household’s energy profile.

What Is a Virtual Power Plant (VPP)?

A Virtual Power Plant, or VPP, connects multiple household batteries and coordinates their stored energy.
Instead of every battery operating completely independently, participating batteries can be coordinated to support the electricity system during periods of high demand.
Under the WA Residential Battery Scheme, VPP participation is a requirement for the rebate and eligible loan.

Why does the WA Government require a VPP?

The objective is not only to help individual households.
Thousands of connected batteries can collectively act as a flexible energy resource.
During periods of high demand, participating batteries may provide energy back to the market or grid.
This can potentially create additional financial value for participating households.

Does Joining a VPP Mean You Lose Control of Your Battery?

No.
Joining a VPP does not mean that another party simply takes ownership of your battery.
However, you are agreeing to the terms and conditions of a specific VPP product.
Those terms can determine:

When the battery may be controlled
How much energy may be dispatched
What financial rewards apply
How long participation lasts
What happens if you leave the program

Before signing:

“How often can the VPP access my battery, how much energy can it use and what financial benefit do I receive?”

Read the specific VPP agreement rather than relying on a general description of VPPs.

Is There a $10,000 Interest-Free Battery Loan in WA?

Yes.
Eligible households may access a no-interest loan of up to $10,000 through the WA Residential Battery Scheme.
The current eligibility requirements state that the household gross annual income must be less than $210,000.
Loan terms can range from:
3 years → 10 years
The loan can help fund eligible battery-related purchases and installation costs, subject to the scheme’s conditions.

Important

The loan is not the same as a rebate.
A rebate reduces the purchase cost.
A loan spreads the remaining cost over time.
Your loan amount plus the rebate cannot exceed the eligible purchase and installation cost.

Who Qualifies for the WA Battery Loan?

The current WA Government requirements state that applicants for the no-interest loan must have:
Household gross annual income below $210,000
Other eligibility and credit requirements also apply.
The loan can be between:
$2,001 and $10,000
with repayment terms of between:
3 and 10 years.
The administrator may also assess financial information and credit requirements.
Therefore, meeting the income threshold does not necessarily guarantee loan approval.

Can Renters Get the WA Battery Rebate?

Potentially.
The current WA Government eligibility information allows eligible rented properties where the applicant has obtained the required written landlord consent.
The property must also meet the applicable residential and technical requirements.
If you’re renting, ask:

“What written approval does my landlord need to provide before the application?”

Can Apartments and Units Qualify?

Potentially.
The current requirements allow qualifying unit-titled properties, provided the necessary approvals are obtained, including approval from the owners corporation where required.
This means apartment owners should check:

Owners corporation approval
Electrical installation requirements
Battery location
Network requirements
Internet requirements
Scheme eligibility

before ordering a battery.

Do I Need Internet for the WA Battery Rebate?

Yes, an ongoing internet connection is part of the property requirements for the scheme’s testing and VPP operation.
This is easy to overlook when comparing battery quotes.
Ask your installer:

“Does my home meet the internet and communications requirements for the WA Battery Scheme and VPP?”

Can I Get the WA Rebate for a Battery I Already Installed?

Generally, no.
The WA Government states that batteries installed before 1 July 2025 are not eligible for the scheme rebate or loan funding. The rebate cannot be applied retrospectively.
This means homeowners should check eligibility before installation, not afterwards.

Can I Get the WA Rebate More Than Once?

The scheme has specific rules around eligible goods and properties.
The current scheme documentation should be checked before adding or replacing batteries because eligibility can depend on whether the installation is considered a new, additional or replacement eligible good and the property’s previous participation.
Don’t assume that replacing a battery automatically creates a new full rebate entitlement.

Is the WA Battery Rebate Limited?

Yes.
The WA Government has allocated support for a large number of households, and the scheme’s overall funding and eligibility conditions apply.
The scheme was designed to support around 100,000 WA households through the combined state and federal arrangements.
Because programs can change, homeowners should verify current availability before signing a contract.

What Should I Check Before Applying?

Use this checklist:

Am I a Synergy or Horizon Power customer?
Is my property eligible?
Is my battery on the approved list?
Is my inverter eligible?
Is the battery VPP capable?
Is the installer an approved scheme vendor/accredited installer?
Can I participate in the required VPP?
Does my property have reliable internet?
Do I qualify for the $10,000 interest-free loan?
What federal incentive applies to my battery?
What is my final price after all incentives?

How to Compare WA Battery Quotes

Don’t compare battery quotes based only on:
“Rebate: $X”
Instead compare the complete system.

Cost / Feature	Installer A	Installer B
Battery	$X	$X
Inverter	$X	$X
Installation	$X	$X
Electrical work	$X	$X
WA rebate	-$X	-$X
Federal incentive	-$X	-$X
Backup equipment	$X	$X
Monitoring	$X	$X
Final price	$X	$X

Also compare:

Usable battery capacity
Battery warranty
Inverter warranty
Cycle performance
Backup capability
VPP compatibility
Installer accreditation
Monitoring
After-sales support

The lowest advertised price isn’t necessarily the best-value battery system.

What Should Be Included in Your WA Battery Quote?

A transparent quotation should clearly identify:

Battery model
Usable capacity
Inverter
Installation
Switchboard work
Protection equipment
Backup equipment
Monitoring
Commissioning
Certification
WA Government rebate
Federal battery incentive
VPP requirements
Warranty
Final out-of-pocket price

Ask the installer to explain anything that is unclear before signing.

Is the WA Battery Rebate Worth It in 2026?

For an eligible household that genuinely benefits from battery storage, the WA scheme can materially reduce the upfront cost.
The biggest opportunity is that eligible households may combine:
WA State Rebate
Federal Battery Incentive
Potential VPP Benefits
Solar Self-Consumption
The WA Government also offers eligible households access to no-interest finance of up to $10,000, subject to the income and loan requirements.
But the rebate should not be the only reason you buy a battery.
The better decision process is:
Energy Usage → Solar Generation → Battery Size → Eligible Product → WA Rebate → Federal Incentive → VPP → Final Price → Expected Savings

Who Should Consider a Battery Under the WA Scheme?

A battery may be worth considering if you:

Already have solar
Export significant solar during the day
Have high evening electricity consumption
Have high electricity bills
Use air conditioning
Own a pool
Charge an EV
Want greater energy independence
Want to increase solar self-consumption
Are interested in VPP participation
Want to reduce reliance on grid electricity

A Battery May Not Be the Right Choice If:

A battery may need further financial assessment if:

Your electricity consumption is very low
You use most of your electricity during daylight hours
Your existing solar system is very small
The proposed battery is significantly oversized
Your expected savings are too low
You are buying solely because of the rebate

A rebate reduces the upfront cost.
It does not automatically make every battery financially worthwhile.

What Is the Biggest Mistake WA Homeowners Make?

The biggest mistake is focusing on the rebate instead of the final economics.
For example:
Battery A
Higher advertised rebate
but higher system price
versus:
Battery B
Lower advertised rebate
but lower final installed price and better suitability
The second option could provide better overall value.
Always compare:
Battery → Usable Capacity → Rebate → Installation → Warranty → VPP → Expected Savings → Final Price

How Solar Authority Can Help WA Homeowners

Understanding the WA Battery Scheme can be complicated because you may need to consider:

WA Government rebate
Federal battery incentive
Synergy or Horizon Power eligibility
VPP requirements
Approved products
Installer requirements
Battery capacity
Existing solar compatibility
Loan eligibility
Final installed price

At Solar Authority, we can help you understand your options before you commit.
We can help assess:

Existing solar
Electricity usage
Battery size
Battery compatibility
WA Government rebate eligibility
Federal battery incentive
VPP requirements
Backup requirements
Expected energy savings
Installation requirements

Get Your WA Battery Rebate Assessment

Find out what battery may suit your home and understand your potential WA and federal incentives before making a decision.
Get a Free Battery Quote
Free to enquire. No obligation to proceed.

Frequently Asked Questions

How much is the WA battery rebate in 2026?

Eligible Synergy customers can receive up to $1,300, while eligible Horizon Power customers can receive up to $3,800 under the WA Government scheme. The rebate is capped at 10 kWh of usable battery capacity.

Can I get the WA and federal battery rebates together?

Yes. The WA Residential Battery Scheme is designed to operate alongside the Federal Government’s Cheaper Home Batteries Program.

How much is the Synergy battery rebate?

The WA Government rebate for eligible Synergy customers is $130 per usable kWh, up to $1,300.

How much is the Horizon Power battery rebate?

Eligible Horizon Power customers can receive $380 per usable kWh, up to $3,800.

Can I get a WA battery rebate if I already have solar?

Yes. The WA Government confirms that eligible batteries can be installed on existing solar systems, although additional equipment or system reconfiguration may be required.

Do I have to join a VPP?

Yes. Participation in an eligible Virtual Power Plant is a requirement for the WA Residential Battery Scheme rebate and eligible loan.

Is there a $10,000 interest-free battery loan in WA?

Yes. Eligible households can access a no-interest loan of up to $10,000, with household gross annual income required to be below $210,000, subject to the scheme’s other requirements and credit assessment.

Can renters get the WA battery rebate?

Potentially. A rented property can qualify where the required landlord consent and other scheme requirements are met.

Can I install a battery larger than 10 kWh?

Yes. Batteries larger than 10 kWh can participate in the WA scheme, but the state rebate remains capped at the applicable maximum. The federal battery incentive can continue to apply under its separate rules.

What battery capacity qualifies for the WA rebate?

Eligible goods must have a usable battery capacity of at least 5 kWh. The WA state rebate is calculated up to 10 kWh.

Are all batteries eligible for the WA rebate?

No. The battery must meet the scheme’s requirements, including appearing on the relevant supported solution list, being on the approved battery list and meeting applicable technical requirements.

Can I claim the WA rebate after installing my battery?

The rebate cannot be applied retrospectively. Batteries installed before the scheme commenced on 1 July 2025 are not eligible.

Does the WA battery rebate cover the inverter?

The scheme’s no-interest loan can cover eligible battery-related equipment including batteries, PV, solar inverters and labour costs, subject to the scheme conditions. The state rebate itself is calculated against eligible battery capacity.

Is the WA Battery Scheme available in 2026?

Yes. Applications for rebates and loans are currently open according to the WA Government’s latest information.

Should I buy a battery because the WA rebate is available?

Not automatically. The best decision depends on your electricity usage, solar generation, battery size, final installed price, expected savings, VPP arrangements and long-term energy requirements.

What should I ask my installer?

Ask:
“What WA rebate am I eligible for?”
“What federal battery incentive is included?”
“Is this battery approved for the WA scheme?”
“What VPP am I joining?”
“What is my final installed price after all incentives?”
“What assumptions are behind the expected savings?”
A transparent answer to these questions makes it much easier to compare battery offers.

Get a Quote

WA Battery Rebate 2026 — Residential Battery Scheme, Eligibility, VPP & Savings