They say: ‘It’s time to declare your independence’. We agree.

They’re the market leader in Germany with over 16,000 installations under their belt, and they’re proving a big rival to the Tesla Powerwall. They’re warrantied for 10 years and you can build them up to 16kWh of usable storage – enough to power an average home for more than a day if the sun starts hiding. The Sonnen system stands out as a really flexible high quality option. With everything connected to the internet you also get automatic software updates, keeping everything efficient while you go and tend to the garden, or read a book, or run your business. In other words, once installed, you don’t have to do anything.

Community energy – the next revolution?

Along with the system, sonnen are planning to bring their sonnenCommunity to the UK. This allows you to share your energy with neighbours on a local grid. Got too much? Sell the excess to sonnenCommunity. Need a bit more? Buy it from the sonnenCommunity at very low rates.

sonnenBatterie specs:

Storage size
5 kWh – 15 kWh  (expandable in steps of 2.5 kWh).

2.5 kW – 3.3 kW

10 years

10,000 charge cycles


Which sonnenBatterie is right for me?

There are two solutions for homeowners:  the sonnenBatterie eco and the sonnenBatterie hybrid.  If even more energy is needed, for example in commercial buildings, the larger sonnenBatterie pro is the right solution.Find out which model suits you best!

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.

Always ready for use – the sonnenBatterie pro

The sonnenBatterie pro is the new standard for responsible energy consumption in commercial operations. It offers maximum self-sufficiency, capacity and performance. Since companies require more energy than a typical single-family home, three sonnenBatteries can be combined to form a larger capacity storage solution. Due to this higher performance and increased capacity, the sonnenBatterie pro operates with larger photovoltaic systems and is therefore suitable for commercial buildings with large solar arrays. Thanks to the integrated energy manager with weather  forecasting and estimated charging behaviour, your company can achieve efficient and transparent supply of clean power at all times.