Battery Rebate Calculator

Enter a few details about your home to see an estimate of the federal battery rebate for your system. It takes about a minute, and you don’t need to give us any contact details to see the result.

How the battery rebate works

The federal Cheaper Home Batteries Program reduces the cost of a home battery through Small-scale Technology Certificates (STCs). The number of certificates a battery earns depends on its usable capacity and on when it is installed. Most households assign their certificates to their installer, and the value comes off the price of the system at the point of sale. You don’t wait for a refund, and there is no separate application for you to lodge.

Support is tiered by size. The first 14 kWh of usable capacity earns the full rate, the next 14 kWh earns a reduced rate, and capacity from 28 kWh to 50 kWh earns a smaller rate again. Capacity above 50 kWh earns nothing. The rate per kWh also steps down every six months from 1 January 2027 until the program winds down at the end of 2030. So the same battery earns less in later years.

Who is eligible

• The battery is between 5 kWh and 100 kWh nominal capacity.
• It is installed with new or existing solar panels (a solar system of up to 100 kW).
• For grid-connected homes, the battery system must be capable of joining a virtual power plant (VPP). You don’t have to join one.
• The battery and the installation must meet the program’s product and installer requirements. We check this for every system we quote.

What your estimate means

The calculator gives an estimate of the rebate, not a quote. Your final figure depends on the exact battery and inverter, its usable capacity, your installation date and an on-site check of your switchboard and wiring. We confirm the rebate in writing in your quote, so the price you sign is the price after the discount.

Next step

If the estimate looks worthwhile, get a full quote with the rebate already applied. Press Get a Quote at the top of this page. We install across Victoria.

Common questions

Is the rebate means-tested?
No. The federal program is not income-tested. Eligibility depends on the battery and the installation, not your income.

Can I add a battery to the solar panels I already have?
Yes. A battery installed alongside an existing solar system can be eligible, as long as the system meets the requirements above.

Does a bigger battery get a bigger rebate?
Up to a point. Because support is tiered, each extra kWh above 14 kWh earns less, and nothing is earned above 50 kWh of usable capacity. The right size depends on your evening and overnight usage, not on the rebate.