Battery systems
Every home we quote starts from the same question: what does your house actually draw between sunset and sunrise? Then we size one of three proven FoxESS configurations to match.
Essential
20 kWh
For couples and small families with existing solar who want evenings covered.
From $4,999 installed · incl. GST, after rebate
Size this for my homeBalanced
28 kWh
For family homes running aircon every night — the sweet spot of price and independence.
From $6,999 installed · incl. GST, after rebate
Size this for my homeWhole home
42 kWh
For big three-phase homes, EV charging and near-total grid independence.
From $8,499 installed · incl. GST, after rebate
Size this for my homeThree-phase homes: add $500. Prices include GST and installation, after the federal battery rebate.
How we size a system
We read your bills and meter data to see what your evenings really cost — no guesswork.
Switchboard, phases, inverter compatibility and where the battery physically lives.
Our own accredited crew — most battery retrofits are done and live in a single day.
App walkthrough, grid paperwork, battery warranty registration — handled before we leave.
Send us a recent power bill and your suburb — we’ll come back with a straight recommendation and an installed price.
Sizing questions
It depends on your evening and overnight usage, not your roof. As a rule of thumb: 20kWh covers a couple or small family, 28kWh suits a family running aircon every night, and 42kWh suits large three-phase homes with EV charging. We size from your actual meter data in the free assessment.
In most cases yes. We check your current inverter first — some systems take an AC-coupled battery directly, while others save more long-term with a hybrid inverter swap at the same time.
Essential-circuit backup (fridge, lights, Wi-Fi, some power points) is standard. Whole-home backup is available on the larger 28kWh and 42kWh configurations, subject to your switchboard.
Yes — the FoxESS battery lines we install are modular. Many customers start at 20kWh and stack additional modules as an EV or pool pump arrives.
