800 MW for the Future: Swissgrid Gives the Green Light for Phase 1 of the Grid Connection for the Technology Center Laufenburg
Laufenburg, 23 January 2026 – Swissgrid has approved the grid connection for the first expansion phase of the grid connection for the Laufenburg Technology Center (TZL) with a capacity of 800 MW. In less than one year, the basic agreement was successfully concluded - another important milestone for the project and the result of efficient collaboration.
FlexBase Group
Laufenburg, 23 January 2026 – Swissgrid has approved the grid connection for the first expansion phase of the grid connection for the Laufenburg Technology Center (TZL) with a capacity of 800 MW. In less than one year, the basic agreement was successfully concluded—another important milestone for the project and the result of efficient collaboration.
A Strong Signal for Switzerland’s Energy Future
With the approval and the signing of the basic agreement, the next steps in planning and constructing the grid connection can now be initiated. “The approval of the 800 MW grid connection is a strong signal for the energy future of Switzerland and Europe. It demonstrates that large-scale storage solutions such as our redox flow battery storage system are not only technologically ready, but also systemically necessary. The fact that this application was approved in such a short time shows what is possible through constructive cooperation—and underscores the international appeal of our project in Laufenburg,” said Marcel Aumer, Group CEO, Chairman of the Board, and Founder.
“We would like to thank Swissgrid and all parties involved for their trust, as well as for the collaborative partnership and shared commitment to a future-oriented energy infrastructure that affects us all.”
Energy Storage with the Potential of a Nuclear Power Plant
Covering an area of more than 20,000 m², the world’s largest and most advanced redox flow battery storage system is being built, with a total capacity of more than 2.1 GWh and an output of over 1.2 GW—equivalent to the output of the Leibstadt nuclear power plant. Unlike lithium-ion systems, redox flow storage systems rely on an aqueous electrolyte. The liquid, which consists of 75% water, is therefore neither flammable nor explosive, can be expanded almost without limitation, and is recyclable.
About FlexBase Group – The Power of Innovation for Tomorrow’s World
Founded in 2022 by Marcel Aumer and Sascha Carroccio, FlexBase Group pursues the vision of creating new and modern jobs for Laufenburg and the entire region through advanced and innovative technologies in the fields of information technology and energy. The group comprises FlexBase Holding GmbH, FB Real Estate AG, FB Data AG, FB Storage AG, FB Power AG, and FlexBase Service AG.
