sonnenBatterie Evo
11 kWh nominal, 10 kWh usable, from two 5 kWh modules
AC-coupled and outdoor-rated — the mainstream Australian product.
Australia-wide
sonnen battery installers in Australia
Get matched with top solar companies in Australia
- sonnenBatterie Evo can sit indoors or outdoors alongside your existing solar system
- Unlock up to $7,000 in federal solar + battery rebates*
- Compare quotes from vetted installers, with sonnen experience where available
sonnen
What could a sonnen 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 sonnen A German-built battery that pairs with the solar you already have, indoors or out.
- Works with the solar you have
The Evo is AC-coupled, and sonnen says it pairs with any solar system.
- Developed for Aussie outdoors
sonnen developed the Evo for Australia and New Zealand, with an IP56 rating for an outside wall.
It meets AS/NZS 5139 for indoor or outdoor installation, sonnen says.
- Backup power comes included
Backup is built in, so chosen lights and appliances keep running when the grid goes down.
Your installer decides which circuits stay on. Ask for the list.
- Full warranty, rebate-listed
Inverter, power electronics, energy manager and battery modules share a 10-year warranty, and the Evo is approved-listed.
Cover ends at 10,000 cycles if that comes before 10 years.
Keep your solar. Add the battery beside it.
The company behind it
sonnen is a German home-battery maker, founded in 2010 and part of Shell since 2019.
Founded 2010
sonnen says it was founded in Wildpoldsried, Germany, in 2010, where its headquarters and production remain.
150,000+ batteries installed
More than 150,000 sonnenBatteries installed since 2010, sonnen says.
Shell-owned, Australian office
sonnen says it has been part of Shell since 2019, with offices in six countries, Australia among them.
Want a sonnen battery on your home?
Get my sonnen quotesCompare up to 3 vetted installers. Free, no obligation.
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 sonnen 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 — 13 locations
- Victoria — 8 locations
- Queensland — 11 locations
- Western Australia — 3 locations
- South Australia — 1 location
- Tasmania — 2 locations
- Northern Territory — 2 locations
- Australian Capital Territory — 1 location
Is sonnen right for your home? Fit and warranty checks
A good fit if…
- Homes with good existing solar and an inverter worth keeping
- Buyers who want an outdoor-rated unit designed for local conditions
- Households whose evening use fits comfortably inside about 10 kWh
- Owners who weight engineering pedigree and software over headline capacity
Consider the limitations
- You need 20 kWh or more, which this range is not shaped for
- Cost per usable kilowatt-hour is your deciding metric
- You are doing a new solar-plus-storage install where a hybrid inverter would be more efficient than AC coupling
- You want to add capacity progressively over several years
The sonnen range
sonnenBatterie 12
Modular wall system
The modular platform in the wider international range.
ecoLinx
Larger integrated system
The high-end home-automation-oriented line.
sonnen specifications and source documents
sonnen sits at the top end and takes a different technical route from most of the market: the Evo is AC-coupled, which means it works alongside your existing solar inverter rather than replacing it. Around 10 kWh usable from two modules, lithium iron phosphate cells, and an enclosure developed specifically for Australian and New Zealand outdoor conditions. It is a smaller, more considered proposition than the big modular stacks — fewer decisions, a higher price position, and a genuine advantage on retrofits.
sonnen questions, answered
- What does AC-coupled mean, and why does it matter?
- It means the battery has its own inverter built in and connects on the AC side of your switchboard, so your existing solar inverter keeps doing its job untouched. That is the reason to consider this product on a retrofit: nothing working gets replaced. The trade-off is a slightly longer energy path — solar DC to AC, then AC back to DC for storage — which costs a little efficiency compared with a DC-coupled hybrid on a brand-new install.
- Is 10 kWh enough for my house?
- For a lot of Australian homes it covers the evening comfortably, but that is an arithmetic question rather than a general one. What matters is your consumption after the sun goes down, not your total daily use — and if you run air conditioning heavily, charge an EV at home or have a pool, the answer may be no. Ask your installer to show the evening load calculation, and treat a brand recommendation made without one as a sales pitch.
- Why is sonnen more expensive than most brands?
- It is positioned as a high-end engineering product rather than a volume one, and it will not win a cost-per-kilowatt-hour comparison against the fast-growing brands. Whether the extra cost is worth paying depends on what you are buying it for — retrofit fit, outdoor hardware built for local conditions and a long European field record are real things, but they are not worth the same to every household. If price per kilowatt-hour is your deciding metric, accept that this is not the brand that wins it.
- Can I add more capacity to a sonnen system later?
- Not in the way the big modular stacks allow. The Evo sits in a fairly narrow capacity band, which makes getting the sizing right at the start more important than with a system designed to grow. If you expect your consumption to change materially — an EV, an extension, a heat pump — say so before the design is settled, because the answer here is to size for it now rather than to add later.
- Is sonnen eligible for the federal battery rebate?
- sonnen models do appear on the Clean Energy Council approved battery list, assessed model-by-model, with the installation also needing to meet the program rules. Ask your installer to show the exact quoted model on the current list — the general brand answer is not the one that determines your rebate.
- Can it really be installed outdoors?
- The Evo carries an outdoor rating and was developed with Australian and New Zealand conditions specifically in mind, which is one of its genuine differentiators. That said, an ingress rating protects against dust and water, not against a wall that bakes at forty degrees all afternoon. Heat shortens the life of every lithium battery, so placement — shade, airflow, which wall — still deserves a proper conversation rather than a shrug because the unit is rated for outside.
- Will a sonnen battery outlast my solar inverter?
- It might, and that is an argument for AC coupling that seldom makes it into a quote comparison. Because the battery has its own inverter and sits on the AC side, it is not tied to the life of your solar inverter — when that unit eventually fails or the panels get upgraded, the battery carries across rather than being replaced alongside. Whether that matters depends on the age of your solar: on a ten-year-old system it is a real consideration, on a new one it is mostly theoretical.
- What does sonnen mean by energy management, and do I need it?
- The pitch is that the battery actively decides when to store, use and export based on your patterns and tariff, rather than simply filling up and emptying. On a time-of-use tariff with a big price spread that intelligence has real value; on a flat tariff with a simple household routine, a cheaper battery doing the obvious thing captures most of the same saving. Ask which tariff you will actually be on after installation, because that — not the software’s sophistication — determines whether you are paying for something you will benefit from.