Conflicting operational paths
sonnen, a company specializing in home energy storage systems, is facing a contradictory situation in its global operations; while the company announced a bankruptcy filing for its German operations, its US arm revealed that its sales have doubled and it is planning further expansion. This announcement comes just two months after the investment group TIVEN acquired the company in full from Shell.
Bankruptcy repercussions in Germany
sonnen GmbH confirmed the bankruptcy filing, informing approximately 400 employees at its headquarters in Wildpoldsried, Bavaria, of the decision on October 22, 2026. According to press reports, the company intends to continue supporting more than 150,000 existing customers, but the operational structure will undergo radical restructuring, with many subsidiaries expected to be liquidated or subjected to self-administered insolvency proceedings, while maintaining only one production site that has not been disclosed.
Strong growth in the US market
On the other hand, sonnen USA announced strong financial and operational performance, with sales doubling and production tripling compared to last year, supported by the expansion of manufacturing facilities in Stone Mountain, Georgia. The company expects to supply more than 180 MWh of home energy storage systems during 2026.
A large part of this growth is attributed to the reliance on Virtual Power Plants (VPPs), which connect home batteries to operate as a unified network that supports the stability of the public electrical grid, providing financial returns to users. The company currently manages active programs in Texas, Massachusetts, and Utah.
What does this mean for users?
Despite the assurances of sonnen USA CEO Blake Richetta regarding the commitment of the new owner, TIVEN, to the success of operations in North America, the future of the company remains shrouded in uncertainty. The company has not provided clarifications on how the restructuring in Germany will affect supply chains, software support, and maintenance services in the United States. The most prominent question for customers remains the extent to which US operations are independent of the financial challenges facing the parent company, especially in the absence of an official comment from management regarding the German developments.