Combining solar power, advanced battery technology and a digital community, sonnen enables the storage, use and sharing of clean and affordable energy within homes and in communities.

The sonnenBatterie is a smart domestic energy storage system incorporating a lithium-ion battery which is guaranteed for up to 10,000 charge cycles or ten years of operation. The battery is charged using electricity from solar panels, enabling a household to cover a share of its power needs with solar energy. sonnenBatterie works in tandem with sonnenCommunity, a virtual network of sonnenBatterie owners connected by a central online platform that links and monitors all members. Members can share their surplus electricity with others in the sonnenCommunity who do not produce enough electricity, making the community independent from conventional energy suppliers.

Our goal is a world in which everyone is able to cover their energy needs with decentralized and clean energy sources. Everyone can connect with each other to share energy where and when it’s needed.

Christoph Ostermann – CEO, sonnen

Members of the sonnenCommunity pay a monthly fee, and in return receive a discounted, 10 year guaranteed battery, low-priced energy from the sonnenCommunity and energy usage optimization to match forecasted weather. After purchase costs, sonnen claims their solution can cut electricity expenses of a typical household by up to 75% within a year. Sonnen currently has more than 10,000 customers.

Why you should care

Clean and affordable energy is one of the greatest challenges of our time. By deploying residential battery systems to store energy from the sun, the sonnenBatterie and the sonnenCommunity are paving the way for a transition from centralized power plants running on fossil fuels to cheap, locally-produced renewable energy.

How the Global Goals are addressed

Affordable and Clean Energy

The domestic battery system and online community provides access to renewable energy around the clock.

Climate Action

Reducing dependence on fossil-fuelled power plants for energy will help to reduce CO2 emissions and mitigate climate change.