Typical retrofit alongside an existing 6.6 kW rooftop solar system. Backup sub-board added for lights, fridge, internet and home office circuits.
Battery storage & backup power, engineered for the long term.
Battery Install Co designs and installs home battery systems across South East Queensland — for solar self-consumption, reliable blackout backup, and properties moving toward all-electric living. Installed by SAA accredited battery installers and licensed Queensland electrical contractors.
- SAA accredited battery installers
- Licensed Queensland electrical contractors
- Backup & off-grid design experience
- Selectronic, Victron & GoodWe hybrid capable

Work out the right battery before you ask for a quote
Five free calculators that show you what we'd recommend and why — sizing, payback, blackout runtime and solar self-consumption. No sign-up needed for the headline estimate.
Battery Size
Quick sizing based on your bill and solar. Get a recommended kWh range in 30 seconds.
Detailed Sizer
Per-appliance sizing for backup-critical homes. Filters brand options by single or three-phase.
Payback & ROI
Years until your battery pays itself back, modelled against your usage, tariff and feed-in.
Backup Runtime
How long your battery runs during a blackout — overnight, and with solar recharging each day.
Self-Consumption
What share of your solar you'll actually use yourself — with and without a battery.
Four reasons our customers add storage
Most South East Queensland homes export power they could store. A properly sized battery flips that into usable energy and keeps essential circuits running through outages.
Store excess solar
Stop exporting your solar at low feed-in rates. Use it overnight instead, where it's worth four to five times more.
Backup power for outages
Keep lights, fridge, internet and essential circuits running through grid blackouts — automatically, within milliseconds.
Reduce grid reliance
Cut evening grid imports and shrink your nightly bills, with a system sized to your real usage profile.
Ready for EVs & all-electric
Set your home up for EV charging, hot water and induction cooking, today and into the future.
Six common household patterns — and what we'd specify
No single battery suits every home. Here's how we typically configure systems for the household types we install most often across South East Queensland.
Family home with existing solar
5–10 kW rooftop solar already installed and exporting at low feed-in. Battery soaks up excess and runs the home from sunset to morning.
Large household, high evening load
Multiple bedrooms, ducted AC, electric cooking and hot water. Needs serious overnight capacity to avoid grid imports at peak rates.
Backup-critical household
Medical equipment, work-from-home, frequent storm blackouts on the Sunshine Coast or hinterland. Whole-home or essential-circuits backup is the priority.
EV charging at home
One or two EVs charged overnight. Pairs well with a Sigenergy DC-coupled system or a larger Sungrow/GoodWe hybrid for solar-direct charging.
Rural property / off-grid
Acreage block, weekender or property with unreliable or expensive grid connection. Selectronic or Victron platform with generator integration.
All-electric new build
No gas. Heat-pump hot water, induction cooktop, reverse-cycle AC, EV charger. Battery is designed in alongside solar from day one.
Three ways to install a home battery
Whether you have an existing solar system or starting from scratch — we recommend the configuration that suits your home, not the highest margin product on the shelf.
DC-coupled / hybrid
A hybrid inverter handles solar and battery together for higher round-trip efficiency and a single warranty. Our most-installed setup — GoodWe Lynx + ET, Sungrow SBR/SBH, or Sigenergy SigenStor.
- Single warranty
- Best round-trip efficiency
- GoodWe, Sungrow, Sigenergy
AC-coupled battery
Sits alongside your existing solar inverter — no inverter swap needed. Tesla Powerwall is the classic example, and BYD with an AC inverter also fits here.
- No solar inverter swap
- Easy retrofit
- Backup-capable
New solar + battery
If you don't have solar yet, we install solar and battery together as a single coordinated system, designed from scratch.
- One install, one warranty
- Backup-ready from day one
- Sized to your usage
Brand-agnostic specification, across South East Queensland
There's no single best battery. The right brand depends on your existing inverter, your usage and your backup goals — we specify what actually fits.
Our most-installed home battery — GoodWe Lynx Home paired with an ET hybrid inverter. Strong value, full backup capability, and well-supported Australian warranty.
Sungrow's SBR and SBH battery ranges pair tightly with their hybrid inverters.
Sigenergy's SigenStor systems combine a hybrid inverter with modular battery storage that can grow as your needs grow.
Tesla Powerwall is widely recognised in Australia — AC-coupled, 13.
BYD Battery-Box Premium HVS and HVM are modular high-voltage battery systems that pair with a wide range of hybrid inverters.
Backup power and off-grid design — not just bolt-on solar batteries
Most solar installers will sell you a battery. Fewer can design the backup wiring properly, and fewer still can engineer a fully off-grid system. We do both.
Backup power systems
Essential-circuit and whole-home backup, wired through a proper backup sub-board with automatic transfer in under 20 milliseconds. We do the load surge calculations so your AC actually starts on battery — not just your lights.
- Essential-circuit sub-board design — lights, fridge, internet, home office
- Whole-home backup with Powerwall 3, Sigenergy or large Sungrow stacks
- Generator integration for extended outages and bushfire-zone properties
- Retrofit backup capability to existing batteries that were never wired for it
Off-grid & hybrid systems
Properly engineered off-grid systems for acreage, rural and weekender properties — the kind of design work most grid-connect installers don't touch. Selectronic and Victron platforms with generator integration, sized for year-round reliability.
- Selectronic SP PRO — Australian-made off-grid inverter platform
- Victron MultiPlus / Quattro for modular off-grid and hybrid systems
- Generator auto-start integration for winter top-up and extended cloud
- Hybrid grid + battery + generator for properties with weak grid connections
Independent comparisons, not manufacturer marketing
We install all the major brands and have no manufacturer affiliation. These guides lay out where each one wins and where it loses — pros, cons and which household it actually suits.
Tesla Powerwall vs Sigenergy: Honest Comparison
Powerwall and Sigenergy are two of the most-quoted batteries in South East Queensland right now. They suit different households. We install both and have no manufacturer affiliation either way — here's the honest comparison.
GoodWe vs Sungrow: Hybrid Battery System Comparison
GoodWe and Sungrow are the two most common value-leader hybrid platforms we quote. Both are solid choices. They differ in inverter style, battery options and monitoring — here's the honest breakdown.
AC-Coupled vs DC-Coupled Battery: Which Is Right for You?
Two ways to add a battery to a solar home: AC-coupled (a battery with its own inverter, alongside your existing solar) or DC-coupled (a hybrid inverter that handles both solar and battery on the DC side). Neither is universally better — the right choice depends on what you've already got.
Battery Backup vs Generator: Which Is Better for Blackouts?
Two ways to keep the lights on during a grid outage: a backup-capable home battery, or a petrol/diesel/gas generator. They solve the same problem differently. Here's the honest comparison.
Long-term energy infrastructure for your home — not a weekend retrofit.
We design every system around your home's loads, switchboard and existing solar. Cabling, isolation, inverter pairing and backup wiring are specified to outlast the warranty period — not to hit a headline price.
How a battery install runs
No surprises. A clear quote upfront, a single-day install for most homes, and a proper handover at the end.
Site assessment
We check inverter compatibility, switchboard capacity, available wall space and your real usage profile — no guesswork.
Quote & system design
A clear, itemised quote covering the battery, install labour, backup wiring and any switchboard work. No upsells, no surprises.
Installed in a day
An accredited battery installer on-site. Grid approval handled. Full handover and monitoring setup before we leave.
Typical battery configurations for SEQ homes
Illustrative configurations showing the brands, capacities and backup setups we'd typically specify for common household patterns across South East Queensland.
Example all-electric beachside configuration with EV. Sized for overnight load plus daytime AC and EV solar-direct charging.
Single Powerwall 3 handling whole-home backup including ducted AC, paired with an existing Fronius solar inverter.
The kind of feedback we aim for
"Honest quote, no upsell pressure, and the install was tidy. The team explained exactly what the battery would and wouldn't do during a blackout before we signed anything."
"We were quoted three different brands by three different installers. Battery Install Co was the only one who actually explained the trade-offs and let us decide."
"Whole-house backup running off a Sigenergy stack. Through three storms this summer the house never even noticed the power was out."
Battery installation across South East Queensland
Sunshine Coast
We install home and solar batteries across the Sunshine Coast — from Caloundra through Maroochydore up to Noosa, and inland through the hinterland. Most Sunshine Coast homes have rooftop solar that's exporting power at low feed-in rates, and a properly sized battery flips that into usable storage.
Brisbane
We install home batteries across Greater Brisbane for homeowners who want lower bills, blackout protection or to prepare for EV charging and all-electric living. Brisbane's mix of high consumption, hot summers and storm activity makes a properly sized battery a strong upgrade.
Moreton Bay
We install home batteries across the Moreton Bay region — Caboolture, North Lakes, Redcliffe, Burpengary, Narangba and surrounding suburbs. Moreton Bay has one of the highest concentrations of rooftop solar in the country, and a battery is the natural next step.
We'll tell you when a battery isn't the right call
Batteries are a serious investment. They're brilliant when the brief is right and a poor decision when it isn't. Here's our honest position on when they work, when they don't, and what proper design actually involves.
When a home battery makes sense
You have existing solar exporting at low feed-in rates, you use significant power overnight, you want backup for storm-season outages, or you're planning an EV or further electrification. In those cases the economics and the resilience both add up.
When a battery may not make financial sense
If your home uses very little power overnight, you're rarely home, your feed-in tariff is high, or you don't need backup capability — the payback may not justify the investment. We'll tell you honestly when we don't think a battery makes sense for your situation.
Honest limits of whole-home backup
Most homes can't realistically run the entire house — ducted AC, oven, pool pump — from a single home battery for any useful duration. Essential-circuit backup (fridge, internet, lighting, one AC head, medical equipment) is usually the more honest design and delivers dramatically longer runtime.
Why proper system design matters
A battery is only as good as the design around it. Cheap installs that skip load profiling, undersize the inverter for surge, or get backup wiring wrong fail in exactly the moments they were bought for. We design every system with peak loads, surge behaviour and switchboard layout in mind — not just nameplate capacity.
Frequently Asked Questions
How much does battery installation cost?
It depends on battery capacity, brand, backup configuration, and any switchboard or hybrid inverter work required. Request a quote and we'll provide a clear, itemised price for your home.
Can I add a battery to my existing solar system?
In most cases yes. AC-coupled batteries like Tesla Powerwall sit alongside almost any existing solar inverter. DC-coupled systems like GoodWe, Sungrow or Sigenergy replace your inverter with a hybrid unit and are usually more efficient — we'll recommend the right approach.
Will a battery run my whole house during a blackout?
It depends on the battery, inverter, your loads and switchboard. For most homes we recommend an essential-circuits backup covering lights, fridge, internet and selected power points. Whole-home backup is possible with larger inverters and careful load planning.
What size battery do I need?
Most South East Queensland homes land between 10 kWh and 20 kWh of usable capacity. We size based on your overnight consumption, not your solar size. Use our detailed battery sizer for a starting point, then we confirm at the site visit.
Do I need a hybrid inverter?
Not always. AC-coupled batteries work with your existing solar inverter. Hybrid inverters are needed for DC-coupled batteries and offer higher round-trip efficiency.
How long does installation take?
Most residential battery installs are completed in one day on-site. Hybrid inverter swaps or switchboard upgrades may add a day.
Which battery brand is best?
There's no single best, but for most SEQ homes we specify GoodWe, Sungrow or Sigenergy first — they offer the strongest mix of value, backup capability and Australian support. Tesla Powerwall and BYD are also good options and we install them too. We'll recommend based on your existing setup and goals.
Do batteries work during grid outages?
Only if the battery and inverter are backup-capable and a backup sub-board is wired in. Many older battery installs were never wired for backup — we add backup capability where it's missing.
Is a home battery worth it?
It depends on your evening usage, existing solar, and how much you value backup. Households with high overnight usage and existing solar typically see the strongest results. Our payback calculator gives you a starting estimate.
Can I backup my air conditioner?
Often yes, but the inverter has to handle the AC's start-up surge. We do the load calculations before quoting.
Do you install off-grid systems?
Yes. We design and install off-grid battery systems using Selectronic and Victron platforms — for rural properties, weekenders and homes where grid connection isn't practical or reliable.
Are you SAA accredited?
Yes. Battery Install Co installations are completed by SAA accredited battery installers and licensed Queensland electrical contractors. License Electrical Licence: 1510704, ABN 79 698 225 008.
Get a battery install quote for your home
Tell us about your home and existing solar — we'll come back with a clear, itemised quote.