sonnen Battery
The sonnenBatterie Evo is the pick for households that want German engineering, the longest cycle-life warranty on the market and storage built to shrug off the Australian climate. Greenlight Solar supplies and installs the sonnen battery across our service areas, fitted by Clean Energy Council accredited installers, with the federal battery rebate applied to your price.
Call 1300 778 257 or request a free quote to see whether sonnen suits your home.
Why the sonnen battery stands apart
sonnen has been building home batteries in Germany since 2010 and was one of the first makers of lithium storage for grid-connected homes. That pedigree shows in the warranty. Where most quality batteries are rated for around 6,000 cycles, the sonnenBatterie Evo is backed for 10 years or 10,000 cycles, whichever comes first, one of the highest cycle counts on the market. That cover extends across every component, the battery modules, the built-in inverter, the power electronics and the energy manager, with a guaranteed minimum capacity retention at the end of the term.
It is also genuinely built for Australia. The Evo is an AC-coupled, all-in-one unit with an IP56 rating, so it can be installed outdoors or indoors, and it operates across a wide temperature band from around minus 10 to plus 50 degrees, which matters in hot inland summers. Because it is AC-coupled, it retrofits to almost any existing solar system without replacing your inverter.
sonnen battery at a glance
The short version: the sonnenBatterie is a premium, German-engineered battery for buyers who value warranty length and build quality over lowest price. Here is the honest picture.
- Pros: a market-leading 10-year, 10,000-cycle warranty, safe LFP chemistry, an all-in-one AC-coupled design that retrofits to existing solar, IP56 so it installs outdoors, a wide operating temperature range for Australian heat, built-in backup with Black Start, and VPP earning through sonnenConnect.
- Cons: it sits at the premium end on price, its continuous power output is lower than high-power batteries like the Tesla Powerwall 3, it is no longer assembled in Australia, and it is not designed for full off-grid use.
- Best suited to: homeowners who want long-term warranty certainty and German build quality, are retrofitting existing solar, need an outdoor-rated battery, or want to earn from a VPP.
Key specifications
Usable capacity
10 kWh per unit, made up of two fully usable 5.0 kWh LFP modules. Expandable to around 30 kWh by adding units.
Chemistry
LFP (lithium iron phosphate), customised by sonnen for safety and longevity
Coupling
AC-coupled and fully integrated, with a built-in sonnenInverter and intelligent BMS. Retrofits to existing solar.
Backup
included, with 5 kW continuous and 7 kW surge, plus a Black Start function that wakes your solar even when the grid is down.
Warranty
10 years or 10,000 cycles, with a guaranteed minimum capacity retention. All components covered.
Rating
IP56, outdoor or indoor, compliant with AS/NZS 5139.
Operating temperature
approximately minus 10 to plus 50 degrees.
VPP-ready
can join sonnen’s virtual power plant or a third-party VPP, and earn through sonnenConnect.
Support
German designed and engineered, with local sales and service in Australia.
How sonnen compares to other premium batteries
Against the other premium and high-warranty options we install, sonnen leads on cycle life:
Against the other premium and high-warranty options we install, sonnen leads on cycle life:
Battery | Usable capacity | Warranty | Best for |
sonnen Evo | 10 kWh, to about 30 kWh | 10 years / 10,000 cycles | Longest cycle life, outdoor, VPP |
Enphase IQ Battery | 5 kWh, modular | 15 years | Retrofits, longest time-based warranty |
Tesla Powerwall 3 | 13.5 kWh | 10 years | High power and backup |
For the full range, see our best solar battery guide.
sonnen battery warranty
Warranty is where the sonnen battery pulls ahead. The sonnenBatterie Evo is covered for 10 years or 10,000 cycles, whichever comes first, against the roughly 6,000 cycles most rivals are rated for, which is one of the highest cycle counts of any home battery in Australia. sonnen also frames its cover as a throughput warranty, guaranteeing a set amount of energy through each usable kWh over the term. Every component is included, the battery modules, the built-in inverter, the power electronics and the energy manager, and the cover remains valid even if you join a virtual power plant. sonnen provides local Australian sales and service, and Greenlight Solar adds a workmanship warranty on the installation itself.
sonnen battery price
sonnen sits firmly at the premium end of the Australian market. Independent installer data puts the average installed cost at around $1,119 per usable kWh, and a typical 10 kWh sonnenBatterie Evo runs roughly $12,000 to $15,000 installed before rebates, coming down to around $9,500 after the federal Cheaper Home Batteries discount of roughly $3,500. It is dearer per kWh than value brands like Sungrow or BYD, so the case for sonnen rests on its warranty, build quality and outdoor rating rather than lowest upfront cost. These are market guides only. Your quote is free.
Eligible Households Can Be Qualified For Rebates Up To $10,000 On Solar Battery Installation!
Who the sonnen battery suits
sonnen is the right call if longevity and warranty certainty are your priority and you plan to stay in your home for the long term, if you want to add storage to existing solar without touching your inverter, if you need an outdoor-rated battery that handles heat, or if you want to earn from a virtual power plant. It sits in the premium segment, so if lowest upfront cost per kilowatt-hour is your main driver, we will point you to a value option like SolaX or BYD instead. Honesty on fit is the point.
The sonnen battery and your rebate
The sonnenBatterie Evo is eligible for the federal Cheaper Home Batteries Program, applied upfront as a point-of-sale discount worth roughly 30 per cent of the battery cost, with no means test. State incentives may stack on top. Greenlight Solar handles the rebate paperwork for you. See the current figures on our federal battery rebate page.
Why install your sonnen battery with Greenlight Solar
Every install is completed by CEC accredited installers, we are an approved solar retailer, and we back our work with a workmanship warranty on top of the sonnen manufacturer cover. We will size the system to your evening usage and set up your VPP participation if you want it. Browse the full solar battery range, compare options in our best battery guide, or size your system with our battery sizing guide.
Frequently Asked Questions
sonnen is a premium battery. A typical 10 kWh sonnenBatterie Evo runs around $12,000 to $15,000 installed before rebates, or roughly $9,500 after the federal discount, which works out near $1,119 per usable kWh. It is dearer than value brands, with the warranty and build quality as the trade-off. We provide a fixed quote for your home.
For the right buyer, yes. The 10,000-cycle warranty is among the longest available, the build quality is German-engineered, and it is outdoor-rated for the Australian climate. If you plan to stay long term and value durability over lowest upfront price, sonnen makes sense. If cost per kWh is your priority, a value brand like Sungrow or BYD will suit you better.
Not any more. sonnen assembled batteries in Adelaide between 2018 and 2022, but now imports all units from its factory in Germany. It still maintains a local office for Australian sales and service.
Yes. The Evo is AC-coupled, so it retrofits to almost any existing solar system without replacing your current inverter.
It is warranted for 10 years or 10,000 cycles, whichever comes first, which is one of the highest cycle counts on the market, against the roughly 6,000 cycles many rivals are rated for. sonnen designs the battery for a long service life well beyond most daily-use households' cycling.
The sonnenBatterie is designed for grid-connected homes and provides backup for essential circuits during an outage, but it is not intended for a full off-grid setup. For off-grid we would recommend a different system.
Yes. Backup is built in, with 5 kW continuous and 7 kW surge, plus a Black Start function that can restart your solar during an outage so the battery keeps recharging.
Yes. The sonnenBatterie Evo can join sonnen's own VPP or a third-party VPP, and eligible owners can earn through sonnenConnect. We can set this up for you at install.
Call 1300 778 257 or request your free quote. Greenlight Solar is Australian owned and operated, a Clean Energy Council member and an approved solar retailer. ABN 44 169 862 293.
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