Your battery rebate.
A clearer picture.
Compare battery sizes and installation dates to see an estimated federal discount, with the calculation explained. No email required.
Make it your estimate
Enter the usable capacity from the battery specification, not its nominal capacity. Or try an example size below.
The electrical-compliance date sets the rebate period, not your deposit or booking date. Change this if installation will be later.
STC value assumption: $37.00
$37 is an illustration, not a live market rate or guaranteed Solair offer. Use a net rate after fees. This tool accepts $0.01–$40; that is an input limit, not a market-price ceiling.
Estimated federal battery discount
Choose your capacity and installation period to see an estimate.
Estimate only, subject to eligibility. Not a system price, bill-saving forecast or guaranteed discount. Prefer to talk? 0405 685 441
The federal calculation is not postcode-based. Eligibility uses 5–100 kWh nominal capacity; the discount calculation uses usable capacity, with support capped at the first 50 kWh. A larger rebate does not automatically mean a better-sized battery.
Where your estimate comes from
First 14 kWh100% of the factor
Above 14 to 28 kWh60% of the factor
Above 28 to 50 kWh15% of the factor
Before you count on the rebate
This tool estimates the amount. These checks still need to be confirmed for your installation.
- Eligible equipment & installation
An approved battery, eligible new or existing solar connection, and a properly accredited installer. Grid and off-grid requirements need checking.
- Capacity & previous claims
Nominal capacity must fit the program limits. A previous federal battery STC claim under this program at the premises can prevent another claim, including a later expansion.
- The actual quote
Confirm the installation period, certificate value and fees. For an eligible expansion, calculate only the newly added usable capacity.
Real installations.
Local experience.
Battery installations by Solair Electrical across Redlands and Brisbane’s Bayside.
Understand the number before you choose.
A rebate is only one part of a battery decision. Solar production, evening usage, tariffs and backup needs all matter.
Why doesn’t doubling the battery double the rebate?
What is an STC, and why use $37?
Does the installation date really make a difference?
Can I add a battery to existing solar?
What if I already have a battery?
Calculation rules checked 31 October 2026. Published factors are included through 2030; rules can change.
Australian Government program guidanceClean Energy Regulator eligibility