About sonnen

sonnen is one of the global market leaders in smart solar energy storage with more than 50,000 residential sonnenBatterie systems installed worldwide.

The sonnenBatterie is an intelligent energy storage system which allows its owners to use solar electricity day and night, whilst also enabling users to change the way that they manage and control their energy.

It saves money by storing the surplus energy generated by solar panels when its not needed, and makes it available at times when it is needed.

Much more than just a battery, the sonnenBatterie combines technically robust, high quality hardware with cutting edge software intelligence through which sonnen can deliver a range of added-value energy services to consumers.

sonnen Product Showcase

Sonnen lasts longer


Install an intelligent, solar power storage system with a 10-year full warranty and an extra-long battery life with over 10,00 charge cycles.

Sonnen safety first

Safe and durable cell technology

sonnen focuses on safety. That is why sonnenBatterie uses lithium iron phosphate cells that are stable and durable.

Sonnen for everyone


Designed as a modular storage system sonnenBatterie can be sized according to your customer’s needs with the option of adding extra storage modules in the future.