Clean energy day and night

Full 10 Year Warranty

Leading warranty

Enjoy a full-10 year no quibble warranty with your new sonnenBatterie.

Increase self-consumption

Increase self-consumption

Increase your self-consumption of up to 80% with a sonnenBatterie.

Save and Earn Money

Save on monthly bills

Save on your monthly payments by storing energy for later.

white sonnenBatterie in front of a blue wall, family standing next to it, mother holding her child, father standing next to them

Intelligent, long-lasting and economical – the sonnenBatterie

The sonnenBatterie is a high-tech storage system that has proven itself in thousands of households – every day. The combination of a PV system and a sonnenBatterie will allow you to cover about 80% of your yearly energy requirement with self-produced and clean energy. Since your energy is being generated on your roof and not by some anonymous energy provider you are more independent than before. So take your energy future into your own hands and reduce your energy costs to a minimum. The decision for a sonnenBatterie is also a decision for the highest standards in safety and quality that "Made in Germany" stands for.

sonnenBatterie eco
sonnenBatterie hybrid

Flexibility at its best – the sonnenBatterie eco

The sonnenBatterie eco is the perfect solution for those wanting the greatest possible flexibility. Since it is not bound to any particular photovoltaic system size, its modular design makes it the right companion for you. It can also be easily connected to other power sources and is compatible with a mini wind turbine, a unit or a fuel cell. The  sonnenBatterie eco is also ideally suited for those who  already have a photovoltaic system. It can be easily connected to existing installed systems enabling them to enjoy their solar power day or night.

Cost-efficient – the sonnenBatterie hybrid

The sonnenBatterie hybrid provides maximum costefficiency as the system also includes the inverter for your photovoltaic system. This eliminates the need for an external device to convert direct current (DC) from the roof into alternating current (AC) for your house. This significantly reduces the total cost of a photovoltaic system and sonnenBatterie. The system also becomes more compact and efficient. Due to its very high efficiency, we ensure that solar power reaches your household with virtually no losses.

sonnenBatterie datasheet

Storage Size
5 kWh - 15 kWh
Modular in steps of 2.5 kWh

Dimensions (HxWxD)
34.6 in x 23.4 in x 9.1 in
73.2 in x 23.4 in x 9.1 in 

2.5 kW - 3.3 kW

Full 10-years

Complete sonnenBatterie datasheet

Technology from the market leader for intelligent energy storage

The sonnenBatterie comes with the experience of 50,000 installed systems globally - built into each unit, the latest technology for greatest independence and longevity. Put together in a compact case that offers highest flexibility thanks to its modular design.

curve illustrating usage of stored energy(blue), usage of PV energy(green), PV prodution(yellow)

Morning: minimal energy production, high energy need.

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

Midday: highest energy production, low energy need.

In the daytime the solar panels‘ energy generation 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 need.

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 pro-duced in the daytime.

white sonnenBatterie in the kitchen

All included: high-end 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 on a minimum of space.

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 much higher longevity and 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.

Would you like to join as a sonnen partner?

The sonnenBatterie is distributed regionally in sonnenBatterie centres that are represented by specialized dealers. The operator of a sonnenBatterie centre is typically a well established, medium-size, specialized dealer, who is locally very respected for his competence, quality and service.

Join sonnen today

Our sonnen Distributors