Skeleton Technologies Opens €220M German Supercapacitor Plant, Eyes AI Data Center Expansion December 24, 2025 Estonian energy storage firm Skeleton Technologies has inaugurated a major new manufacturing facility in Germany, marking a significant strategic move to capture a growing share of the power infrastructure market for artificial intelligence data centers. The company's "SuperFactory," located in Markranstädt near Leipzig, represents a €220 million ($192.5 million) investment and is central to its ambition of addressing the acute power management challenges posed by next-generation computing. The newly operational plant is designed to produce Skeleton's proprietary curved-graphene supercapacitors, a high-power energy storage technology capable of responding to sharp load fluctuations in under a millisecond. With an annual production capacity of up to 12 million cells, the facility enables a fully vertically integrated European supply chain, covering everything from raw materials to finished power electronics modules. CEO Taavi Madiberk emphasized the strategic rationale behind choosing Saxony, stating, "Leipzig and Saxony have the highest density of Fraunhofer institutes in Germany and a long tradition of high-quality, high-volume manufacturing. We wanted the best of Estonian entrepreneurship with the best of German engineering." The company is already shipping systems from the German lines to major U.S. hyperscale data center operators and has deployed technology across European electrical grids in partnership with industrial giants like Siemens, Hitachi Energy, and General Electric. However, the AI data center segment is identified as the fastest-growing customer base. AI workloads create highly uneven power profiles, with massive spikes during parallel computing phases. Skeleton's GrapheneGPU solution acts as a fast-response buffer to smooth these peaks, which the company claims can reduce the required grid capacity for a GPU cluster by nearly half and deliver up to 40 percent in energy savings. "By eliminating GPU burn—the intentional throttling to manage thermal loads—we can increase actual GPU computing output by up to 40 percent," Madiberk explained, highlighting a key performance differentiator. "Cooling can remove heat from the outside, but nothing removes heat from inside the GPU. That’s why this matters." Looking ahead, Skeleton plans to expand its manufacturing footprint closer to its largest market. "The market is clearly in the U.S. Our next step is opening our first manufacturing facility in California early next year," Madiberk confirmed, citing geopolitical considerations and the need for mission-critical components to be near customers. The Middle East, particularly Saudi Arabia, is also noted as a region with significant growth potential. The opening of the Leipzig plant follows the recent launch of the company's SuperBattery factory in Varkaus, Finland, underscoring its broader expansion in advanced energy storage. Founded in 2009, Skeleton's technology has historically served the automotive and utility sectors, with customers including the European Space Agency and BMW. Source: datacenterdynamics
Skeleton Technologies Opens €220M German Supercapacitor Plant, Eyes AI Data Center Expansion
