Germany’s Sonnen wants to create a world in which everyone is able to meet their power requirements using cost-effective decentralized and smart clean electricity systems that generate and store energy close to the point of consumption. The Sonnen battery solution is the means to that end. Engineered and made in Germany; Sonnen’s home battery storage solution, sonnenBatterie Eco, is a part of realizing that vision – and is now available in Australia.

NEW: Now also available with automatic blackout/backup power option!

Sonnen has evolved to become the largest home battery supplier in Europe, with more than 2,600 units sold in the first quarter of 2016 and 30,000+ systems shipped overall.

How the sonnenBatterie gets you through the day

Clean energy during the daytime, in the evening and at night

Graph showing solar production, consumption of solar energy and storage and

Morning: minimal energy production, high energy needs.

At sunrise, the solar panels start to produce energy, though not enough to cover the morning energy needs. The sonnenBatterie will bridge the gap with the stored energy from the previous day.

Midday: highest energy production, low energy needs.

In the daytime, the energy generated from the solar panels is at its peak. But since nobody is home the energy consumption is very low so that most of the generated energy is stored in the sonnenBatterie.

Evening: low energy production, high energy needs.

The highest daily energy consumption is in the evening when the solar panels produce little or no energy. The sonnenBatterie will cover the energy need with the energy produced in the daytime.

Solar battery storage - Sonnen interior view

Meets your energy needs whether you are a small or a big family

Every household has its own very specific energy needs. That’s why the sonnenBatterie was developed as a multi-stage storage system that can be adapted to the most diverse energy needs. With storage sizes ranging from 2 kWh to 16 kWh, the sonnenBatterie will power a detached house or a multi-family house. The sonnenBatterie’s energy capacity can be individually expanded in blocks of 2 kWh – should you ever feel the need to increase the power stored in your house.


High-quality components perfectly tuned to your needs

The sonnenBatterie is a complete system – ready for connection. This means that inside of every sonnenBatterie you’ll find not only the extremely durable battery modules but also an inverter, an intelligent energy manager, measurement technology and the software to operate it all smoothly. All in one handy box. In contrast to most other battery systems in the market, the sonnenBatterie components are build into a single high-quality casing and perfectly attuned to each other – thereby ensuring a very high longevity and maximum quality with a small footprint.

Batteries are the basis of all energy storage systems

Over time they will be charged and discharged many thousands of times. For that reason, the sonnenBatterie is based on the most reliable and sustainable battery technology available and exclusively uses lithium iron phosphate batteries (LiFePO4). These batteries offer a greater longevity and higher safety than most other lithium-ion batteries that are commonly used in smartphones, laptops or electric cars. Did you know: lithium iron phosphate is the only battery component that occurs naturally and does not contain any toxic heavy metals.

Sonnen Batteries Eco Highlights

Father is hugging children standing beside Sonnen Battery
  • NEW!Blackout backup power add-on available
  • Elegant, affordable and powerful
  • All in one battery solution
  • Compatible with all solar power systems
  • 4kWh – 16kWh capacity (2kWh increments)
  • Modular system – add more capacity as required
  • Inverter upgrade not required when expanding a system
  • Internal inverter manufactured by leading European company, Ingeteam.
  • Market-leading 10 year/10,000 cycle warranty (close to 3 full cycles daily!)
  • Smart battery – self-learning algorithm
  • Designed and made in Germany
  • Easy to use and powerful system monitoring
  • 3-Phase option available (free with 10kWh+ systems)
  • Available in four colors – white, black or silver
  • Designed for indoor installation (garage)
  • Easy to retrofit to an existing solar panel system
  • Optional participation in sonnenCommunity and sonnenFlat
  • Backed by Europe’s largest home energy storage supplier
  • Very reasonable pricing!
  • Call our friendly team on 1300 980 640to learn more.

Technology from the market leader

The sonnenBatterie comes with the experience of 20,000 installed systems – build into each unit, the newest technology for highest independence and maximum longevity. All in a compact case that offers highest flexibility thanks to its modular design.

Solar battery storage - sonnen

Dimensions (H/W/D in cm)

Base cabinet (2 kWh): 70/64/22
Dimensions 4 – 10 kWh: 137/64/22
Dimensions 4 – 16 kWh: 184/64/22

Storage size

2 kWh – 16 kWh (expandable in steps of 2 kWh)


1.5 kW – 3.0 kW (single phase)

1.5 kW – 3.3 kW (three phase)

Design Lifespan

20 years


10 years or 10,000 charge cycles

System intelligence

With the use of predictive charging you maximize your PV output.

Complete storage system

Everything included, ready to connect

Operating mode

single phase, three phase and hybrid

Request a Quote

Fill in the form below to request a quote Our representative will get back to you soon!