WA Solar Battery Rebates

LAST UPDATED: 3rd June 2025

The current WA Solar Battery Rebate is one of the most generous battery incentives in Australia and is driving huge demand for batteries in WA already.

• Launch: 1 July 2025 (but installers are taking pre-orders now)
• Rebate: up to $1,300 for Synergy customers, and up to $3,800 for Horizon Power customers. But the actual rebate will be determined by the size of the battery.
• Interest-free Loans: for the remaining cost, zero interest loans up to $10,000. Means-tested for low and medium-income households.
• Caps: 100,000 battery rebates in total.
• Budget: $387 million, including $50M for WA-based battery manufacturing

With only 100,000 rebates available, pre-order demand is high.

Combining the WA Home Battery Rebate, with the Federal Solar Battery Rebate and the Federal STC Solar incentive, makes a solar and battery system a no brainer for many West Australian homes.

Homeowners can receive both the WA State Rebate and the new Federal Battery Rebate – a combined saving.

• The Federal Battery Rebate offers $400 per kWh up to 50 kWh, capped at batteries of up to 100 kWh total size.

• The WA State Rebate offers up to 10 kWh of subsidised capacity, depending on your electricity retailer.

This means eligible households could receive both rebates together, significantly lowering battery costs.

Who is eligible for the WA Solar Battery Rebate?

To be eligible for the WA battery rebate:

• you must be a Synergy or Horizon Power customer;
• install a new approved solar battery system after 1 July 2025;
• the battery “must meet Australian and local grid standards” and “can include existing recognised brands as well as locally manufactured batteries” and must sign up to a Virtual Power Plant (VPP);
• use a Solar Accreditation Australia (SAA) accredited installer;
• for the loans, households will a combined income of $210,000 per annum will be eligible.”; and
• meet additional criteria set by the WA Government (sign-up below for alerts)

Rebates Available:

An interest-free loan of up to $10,000 will also be available to help with upfront costs, means-tested up to a maximum of $210,00 in house-hold income.

How Affordable Does the Scheme Make Batteries for WA Homes? 

Typical, batteries cost between $10,000 and $15,000. Therefore, the combination of the rebate and interest-free loan significantly lowers the financial barrier for homeowners.

Here are our estimates: 

• Upfront Cost: Assuming a $15,000 battery gets the maximum combined Federal and WA State Rebate (Synergy) of $5,000, the out-of-pocket price for the battery would reduce to $10,000. 

• Remaining Costs: low and medium-income households also get an interest-free loan to cover the remaining $10,000, therefore making it $0 upfront cost.

• Payback Period: the WA Government estimates a solar battery will save WA households up to $1,500 per year. Therefore, depending on your electricity usage patterns, you could see a payback period as low as 6 to 7 years. 
• Cash Flow: Monthly loan repayments may be offset by electricity bill savings, improving affordability. 

FAQs

Does the WA Battery Rebate allow for retrofitting batteries to existing solar systems?
Yes, the scheme is expected to allow retrofitting—details will be confirmed soon. Register for updates below.

Can renters apply for the WA Residential Battery Rebate?
Typically no, unless you have landlord permission. Batteries may be able to be moved between homes though.

Next Steps

We’ll continue to update this page and our blog as the WA Government releases more information about the WA Residential Battery Scheme.

To stay ahead:

✔️ Get 3 no obligation quotes to compare
✔️ Register for WA Home Battery Rebate Update Alerts
✔️ Bookmark this guide