Federal battery rebate eligibility in WA

Any WA home or business can claim the federal battery discount on a new battery between 5 and 100 kWh that's installed alongside a rooftop solar system. Federal battery rebate eligibility depends on a battery from the Clean Energy Council (CEC) approved list, an inverter that can join a virtual power plant (VPP), and an installer accredited by Solar Accreditation Australia (SAA). The published criteria include no income test. Each property gets one claim.

Who can claim

Households, businesses and community organisations all qualify under the Cheaper Home Batteries Program, the federal scheme behind the discount. The limit is one battery system per property. In a retirement village where residents own their units, each owner can claim for their own.

How the discount is paid

Your installer or retailer takes the discount off the quoted price and claims it back through small-scale technology certificates (STCs), which you sign over to them. Some retailers pay it as a rebate after installation instead. Ask which one the quote assumes and when the money arrives.

Claiming it yourself is allowed. Keep the right to create the certificates, register them in the REC Registry, the regulator's online certificate register, and sell them through the Clearing House or on the open market. Certificates can be created for 12 months after the battery is certified.

The federal STC page shows what the discount is worth at each battery size.

What the battery has to be

The discount itself is counted on usable capacity, the energy the battery can discharge, and only the first 50 kWh of it counts. A battery with 70 kWh nominal and 60 kWh usable is eligible and earns certificates on 50.

Modules smaller than 5 kWh qualify once the stack reaches 5 kWh nominal, provided the final configuration appears on the CEC list.

Portable batteries and electric vehicles are out.

The inverter has to be VPP-capable

A VPP links home batteries so a retailer can call on them together, like one power station. The inverter your battery connects to must be able to reach the grid and respond to remote signals, and nothing in the federal program makes you enrol. Enrolling later needs an ongoing internet connection.

Only that one inverter needs VPP capability. An older solar inverter elsewhere on the site can stay, and the existing panels do not need to be on the CEC list. The federal rule still requires the existing system to comply with state electrical safety regulations.

Wire the battery into an existing hybrid inverter and that inverter must be on the CEC approved list today, or have been on it when commissioned and not since delisted for safety reasons. A hybrid that fails both tests has to come out and be replaced with a listed, VPP-capable inverter before the battery can claim. Our retrofit guide compares that route with adding a separate battery inverter.

The installer and the install date

Only an SAA-accredited installer with battery endorsement can do the work or supervise it on site. A general electrical licence is not enough. An installer who supervises is expected on site for job setup, mid-install and commissioning, and SAA limits how many eligible systems one installer can commission in a day. SAA's website has an accreditation status check.

Batteries installed on or after 1 July 2025 qualify, and installed means the day the electrical compliance certificate is issued. That day also sets the rate, which next steps down on 1 January 2027. A contract signed in December and certified in January gets the lower rate.

What the retailer has to tell you

Retailers selling under the program must say how the battery's size suits your solar system and give the expected payback period and savings. Ask for the system warranty and the dollar value of the discount alongside them.

Behind the sale, the retailer, the designer and the installer each give the Clean Energy Regulator a written statement that the battery is safe and will work as intended. You are owed written documentation about the battery and its installation. Keep the quotes and emails from the sales process with it.

One claim per property

Buying a small battery now and adding another in 2028 means the second one is paid for in full. The Clean Energy Regulator's advice is to size the first battery for future needs as well as current ones.

Owners of a battery that has never received the discount can add capacity and claim on the addition, provided the new capacity is at least 5 kWh nominal and the whole system stays at or under 100 kWh. A home with an unclaimed 2021 battery that adds 6 kWh can claim on the 6. Adding 4 kWh earns nothing. Replacing an unclaimed battery outright works the same way, and the property's one claim is then spent.

After the install

The Clean Energy Regulator inspects a sample of installations each year, so an inspection provider may contact you. The visit needs your written consent. You cannot request one. The regulator also recommends a yearly safety check by an SAA-accredited electrician.

If the discount never shows up, the regulator can tell you whether it has been claimed for your installation. Problems with the work go to the retailer first. After that come the Clean Energy Regulator, Building and Energy for electrical safety in WA, and Consumer Protection WA for disputes over the sale.

Where the WA rebate is stricter

The WA Residential Battery Scheme pays on top of the federal discount. It needs you to join a VPP, where the federal program stops at a capable inverter. Equipment must be on Synergy's Supported Solutions List. The state minimum is 5 kWh usable, so a battery that clears the federal 5 kWh nominal minimum can still fall short.

The WA battery rebate page sets out the state rules, and the eligibility checklist lists both sets of conditions to take to an installer.

Program rules and approved product lists change. Confirm the battery model, the inverter and the installer's accreditation against the current lists before you sign.