Home battery systems · Brisbane
Home battery systems for Brisbane homes.
Compare practical 20kWh, 28kWh and 42kWh paths, then size the system around what your house actually draws between sunset and sunrise—not a one-size-fits-all brochure.
Essential
20 kWh
For couples and small families with existing solar who want evenings covered.
- Battery retrofit to your current solar
- Covers a typical evening + overnight
- Essential-circuit blackout backup
From $4,999 installed · incl. GST, after rebate
Estimate this for my homeBalanced
28 kWh
For family homes running aircon every night — the sweet spot of price and independence.
- Hybrid inverter + stacked battery
- All-evening aircon without grid draw
- Whole-home backup options
From $6,999 installed · incl. GST, after rebate
Estimate this for my homeWhole home
42 kWh
For big three-phase homes, EV charging and near-total grid independence.
- High-capacity EP11 architecture
- Overnight EV charging on sunshine
- Expandable as your loads grow
From $8,499 installed · incl. GST, after rebate
Estimate this for my homeOrdinary three-phase systems add $500. CQ7 and 15kW inverter options use a different surcharge. Prices include GST and standard installation after the federal battery rebate; backup, equipment changes and site work are confirmed in writing.
How we size a system
Four steps from first call to switch-on.
1 · Usage review
We read your bills and meter data to see what your evenings really cost — no guesswork.
2 · Site check
Switchboard, phases, inverter compatibility and where the battery physically lives.
3 · Install day
Our own accredited crew completes the installation and commissioning to the agreed site-specific scope.
4 · Support & warranty
App walkthrough, grid paperwork, battery warranty registration — handled before we leave.
Find the system path that fits your home.
Use your recent power bill, suburb and evening loads to get a preliminary capacity recommendation and installed-price range.
Sizing questions
Asked at almost every kitchen table.
What size battery do I need for my home?
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.
Is my existing solar compatible with a battery?
Most homes have a workable retrofit path, but not every battery connects directly to every inverter. We check the complete inverter model, phase, metering, PV arrangement and required blackout behaviour before recommending AC coupling, a hybrid inverter change or a broader redesign.
Can the battery power my whole house in a blackout?
Backup is designed per property. Essential circuits are the usual starting point; wider backup may be possible after checking the switchboard, inverter EPS output, battery discharge limits and large-load starting demand. Battery kWh alone does not prove whole-home capability.
Can I start smaller and expand later?
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.