Skeleton Technologies has inaugurated its €220 million SuperFactory in Markranstädt, near Leipzig, Germany. The facility, officially opened on November 28, 2025, is already supplying supercapacitors to Siemens, General Electric and Hitachi Energy for European electrical grid applications, as well as to major US hyperscale data center operators for AI infrastructure.
Built around Skeleton’s patented Curved Graphene material, the factory produces supercapacitors that contain no lithium, cobalt, manganese or other critical raw materials. These devices are integral to the company’s GrapheneGPU™ solution, which can reduce total electricity consumption in data centers by 44 percent by smoothing power peaks and mitigating stress on the electrical grid. According to Skeleton Technologies, this approach also unlocks up to 40 percent more computing power from existing GPU investments.
The new Leipzig plant addresses two structural challenges facing Europe’s energy and technology sectors. First, energy-hungry AI data centers are expected to drive further increases in electricity costs. Second, only a small proportion of AI data center hardware value is currently manufactured within Europe. In contrast, US hyperscale operators are forecast to invest around USD 330 billion in AI infrastructure in 2026, compared with only USD 10 billion in Europe.
The SuperFactory will create approximately 420 jobs and has been designed for an annual output of up to 12 million supercapacitor cells. It follows the recent opening of Skeleton’s SuperBattery production site in Varkaus, Finland, and leverages Siemens Xcelerator—a portfolio of digital services, software and IoT-enabled hardware—to strengthen Europe’s advanced industrial base.
European electrical grids are under growing strain from the rapid deployment of renewable energy and the surge in AI data center demand. The 2025 Iberian blackout highlighted the need for fast-response energy storage technologies, and the European Commission estimates that some €584 billion will be required to modernize the continent’s electricity networks by 2030. Skeleton Technologies, which claims to be the only fully integrated European company covering the entire high-power energy storage value chain, holds over 70 patent families across its technology portfolio.
Source: Skeleton Technologies
