What does the federal program require?
The Cheaper Home Batteries eligibility guidance requires a battery connected with eligible solar PV. Existing solar can be used, or new or replacement solar can be installed with the battery. A battery without solar PV is not supported under this program.
This is federal support, not a VEU battery rebate. If an advert uses the VEU name for battery storage, ask the supplier to identify the actual scheme on the quote. Our battery incentives explainer sets out the distinction.
If your home already has solar
Start by collecting the solar installation paperwork, inverter model and any available monitoring information. If you bought the house with solar already installed, say which details you have and which need investigation.
Ask the designer to assess compatibility and condition before recommending a battery. “You have solar” is useful information, but it does not identify the inverter, the way the installation is configured or whether additional work is required.
Request an explanation for any proposed inverter replacement. Is it required for the selected design, needed because of condition, or one option among several? That distinction helps you compare proposals instead of assuming every battery installation requires the same changes.
If you are starting with no solar
Ask for a coordinated solar-and-battery design and an itemised quote. It should show the panel system, inverter, battery and associated installation work clearly enough that you can identify what each part costs.
Talk about your electricity use before choosing panel count or storage capacity. Are people home during the day? Does most consumption happen after sunset? Are you planning to replace a gas heater or buy an electric vehicle?
A larger roof installation or battery is not automatically the right answer. Ask the designer to explain the expected energy flows using your household information and to identify assumptions that could change the forecast.
What else needs an eligibility check?
The Clean Energy Regulator’s solar battery guidance covers eligible capacity, approved equipment, installation requirements and certificate support. Ask the supplier to confirm the exact proposed battery and inverter, rather than rely on a brand-level claim.
Tell the supplier about any existing battery and previous federal battery support at the premises. Adding storage is not necessarily a fresh claim. Modular products also need assessment as the final system being installed, not just as individual boxes.
Keep that confirmation with the product data sheets. If the equipment list changes, request a new check before installation. A product swap should not leave you guessing whether the financial assumptions still hold.
How much storage do you actually need?
Ask about usable capacity as well as nominal capacity. They describe different things, and a brochure’s largest number is not necessarily the energy available for household use. Also ask about continuous power output and which loads the system is designed to support.
Provide several recent bills and interval data if available. Include a winter period where possible, particularly if you use electric heating. A proposal built only around a sunny low-use day may not reflect your main reason for wanting a battery.
Have the designer distinguish three aims: shifting solar energy into the evening, responding to electricity tariffs and providing backup. You may value all three, but the equipment and settings need to be discussed accordingly.
A simple information pack to send your installer
- Installation address and photographs of the proposed area.
- Solar inverter model and existing battery details, if any.
- Recent electricity bills or interval data.
- Known previous rebate or certificate paperwork.
- Specific circuits you would want backed up during an outage.
Do not open electrical enclosures to obtain information. Ordinary photos and records are enough to start; the qualified installer can identify what requires inspection.
Compare the whole design before deciding
Ask each supplier what changes to existing equipment are included, what happens during a power outage and which support contact you would use after installation. Compare final prices for the same requested outcome, not one battery cabinet against a complete solar upgrade.
For the VPP question, read whether you must join a virtual power plant. To explore equipment options, visit our solar battery page or request an assessment. Confirm the responsible qualified installer and program arrangements before booking.
Sources and review notes
Checked on 10 October 2026. Program rules and certificate values can change. Use the current official guidance and your written quote before committing to an upgrade.
