Fronius Reserva
Stackable modules, four Australian sizes, up to four towers
High-voltage DC-coupled LFP tower. Slim enough for tight garage installs.
Australia-wide
Fronius battery installers in Australia
Get matched with top solar companies in Australia — Fronius-experienced prioritised
- Monitor your Reserva battery and Fronius hybrid inverter together in the Solar.web app
- Unlock up to $7,000 in federal solar + battery rebates*
- Compare quotes from vetted installers, with Fronius experience where available
Fronius
What could a Fronius battery save your home?
*For eligible combined solar and battery installations before January 2027. Battery-only rebates vary with usable capacity. Your installer confirms eligibility and amount.
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✓ Your chosen battery, your quote request
Meet Fronius Fronius's own battery, made to pair with its GEN24 Plus hybrid inverter.
- Pairs with Fronius GEN24 Plus
Reserva is matched to Fronius hybrid inverters, so your solar, battery and monitoring all come from one maker.
Needs a Fronius hybrid inverter such as the GEN24 Plus. The older Symo Hybrid is not compatible.
- Fronius inverters rate highly
Fronius inverter owners rate the brand 4.8 from more than 9,300 SolarQuotes reviews (Oct 2026).
- Whole-home backup, heat pump included
Fronius Full Backup can supply the entire home in an outage, including large three-phase loads such as heat pumps.
Full Backup needs a battery and a switching device in your quote, and isn't offered on the Symo GEN24 3.0–5.0 Plus.
- 10-year warranty, rebate-listed
Reserva carries a 10-year warranty, and all four Reserva sizes are on the approved battery list for the federal rebate.
Your quote should name the exact Reserva size.
Supplying Australia since around 2000, Fronius says.
The company behind it
An Austrian family company founded in 1945, now making solar inverters and home batteries.
Founded 1945
Fronius says it was started by Günter Fronius in Pettenbach, Austria, in 1945, and is still family-run in its third generation.
Global team
Fronius says more than 6,500 people work for it in over 30 countries.
Melbourne since 2010
Fronius says its Melbourne office, open since 2010, houses technical support and a repair centre.
Want a Fronius battery on your home?
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We pick them, nobody bids
Request a match with up to 3 approved installers. Current availability, campaign geography and brand suitability are checked for your enquiry.
Check the installation credentials
Ask each installer for their workmanship warranty, trading history and current brand credentials before you decide.
Rebates at quote
The federal Cheaper Home Batteries discount — roughly a quarter off installed cost — plus your state layer, applied upfront at quote.
Find Fronius installers near you.
Each state page lists its capital and regional centres, the battery rebate stack for that state, and the installers we match you with there. Not listed? Matching runs on postcode, so enter yours anyway.
- New South Wales — 25 locations
- Victoria — 14 locations
- Queensland — 14 locations
- Western Australia — 7 locations
- South Australia — 4 locations
- Tasmania — 4 locations
- Northern Territory — 2 locations
- Australian Capital Territory — 1 location
Is Fronius right for your home? Fit and warranty checks
A good fit if…
- Homes already running, or buying, a Fronius GEN24 Plus hybrid inverter — this is the clean path
- Buyers who weight local service and spare-parts availability over lowest cost per kWh
- Single-phase homes wanting backup and black-start capability
- Tight installation spaces, where the tower’s slim depth genuinely matters
- People who intend to keep the house a decade and care who answers the phone in year six
Consider the limitations
- You have an older Fronius SnapINverter — Reserva needs a GEN24 Plus, so you are buying an inverter as well
- You want the lowest cost per kWh; comparable modular stacks are materially cheaper
- You want freedom to change inverter brand later — this is a closed pairing
- You want a long Australian field history on the exact battery model, which does not exist yet
The Fronius range
Fronius GEN24 Plus (required)
Primo single-phase / Symo three-phase
The hybrid inverter Reserva must pair with — backup and black-start capable. Not optional, and not substitutable.
Fronius specifications and source documents
Reserva is Fronius’s own home battery: a high-voltage, DC-coupled LFP tower built from stackable modules in several sizes, with multiple towers able to run in parallel. It pairs only with a Fronius GEN24 Plus hybrid inverter, so it makes most sense for households already on — or buying — Fronius. The reason to consider it is not the cell chemistry, which is unremarkable, but Fronius’s Australian service depth: a local office, warehouse and repair centre, and many years of installer relationships at a time when at least one long-established European competitor has left the market entirely.
Fronius questions, answered
- Can I add a Fronius Reserva to my existing Fronius inverter?
- Only if it is a GEN24 Plus hybrid. Reserva is DC-coupled and pairs exclusively with that range — an older Fronius Primo or Symo SnapINverter cannot take it, so a retrofit onto those systems means adding an inverter too. Get that spelled out in the quote before you compare prices, because it is the difference between two very different jobs.
- Is the Fronius Reserva made in Austria?
- Fronius is an Austrian company with a long-standing Australian office, warehouse and repair centre, and that local service depth is a genuine reason people choose it. The battery hardware itself is not represented as Austrian-manufactured. If country of manufacture matters to you, ask the installer to confirm it in writing for the exact model quoted rather than inferring it from the brand.
- What sizes does the Fronius Reserva come in?
- Four Australian sizes built from stackable modules, with up to four towers able to run in parallel for larger homes. Because the federal rebate pays its full rate only on the first tier of usable capacity, the mid-range configurations tend to give the best value per kWh — ask your installer to show how the size they are quoting lines up with the rebate tiers.
- Should I get a Reserva or pair a Fronius inverter with another battery?
- Both are legitimate. Fronius GEN24 Plus inverters have long been paired with third-party batteries in Australia, and that route can be cheaper. Reserva buys you one manufacturer across inverter, battery and monitoring, and one phone number when something misbehaves. Ask your installer to quote both and say plainly which one they would rather support in year five.
- Why choose Fronius when other brands cost less?
- On hardware alone, you often would not. What you are buying is the Australian service layer — a local office, warehouse and repair centre, and many years of installer relationships, at a time when a long-established European competitor has exited the Australian residential market. If you plan to stay in the house a decade, that continuity is the argument. If you are optimising the first invoice, it is not.
- How long does a Fronius Reserva install take?
- A straightforward single-phase install is typically a day on site, with the battery, inverter and monitoring commissioned together. What extends it is switchboard work, three-phase configurations and backup wiring, all of which are decided at design stage rather than on the day. Grid-connection approval runs in parallel and is usually the longer pole, so ask for both timelines separately.
- Does a Fronius system still work if the internet drops?
- The core functions keep running — solar generation, battery charging and discharging, and backup do not depend on a live connection. What you lose is monitoring, remote support and any tariff optimisation that relies on external data. That is a reasonable design for regional Australia, where connectivity is not guaranteed, and it is worth confirming with your installer which features are cloud-dependent.