Solar & Battery Costs in Australia
Understand battery prices, payback, the federal program, system sizing and installation — using calculators with your own numbers and dated, cited sources.
Cheaper Home Batteries Program
Approximate target of around 30% off eligible battery costs, delivered through STCs, effective from 1 May 2026. Support declines over time until 2030.
Start with payback
Whether a battery is worth it comes down to your numbers. Model it directly.
Guides & tools
Solar battery cost
Dated market ranges and the components of your real cost.
Solar panel installation cost
A system-size cost framework using your inputs.
Federal battery program
Eligibility, the indicative discount and official sources.
Solar system size calculator
Size a system from your use and peak-sun-hours.
Battery discount estimator
A rough, dated indicative discount (unofficial).
Battery payback calculator
Simple payback and 10-year savings.
Three numbers you need before deciding
- Installed net cost
- What you actually pay after any rebate — not the sticker price of the hardware.
- Usable battery capacity
- The kWh you can actually cycle, which is less than the nominal capacity.
- Import vs feed-in tariff difference
- The gap between what you pay to import and what you earn to export decides how valuable it is to store energy rather than sell it.
Battery buyer scenarios
- New solar + battery together: one install, shared costs, sized to your load.
- Battery with an existing hybrid inverter: may avoid new inverter work.
- Retrofit needing inverter work: extra cost if your current inverter can't add storage.
Programs and rules change
Battery program settings and tariffs change over time. Always confirm current rules with the official source before committing.
Sources
- Cheaper Home Batteries Program Department of Climate Change, Energy, the Environment and Water (DCCEEW) · Last checked 20 September 2026
- Solar battery prices and system costs SolarQuotes · May 2026 · Last checked 20 September 2026