Cegasa Energía and Skeleton Technologies have each opened new production facilities in Spain and Finland, marking a significant advance for European battery manufacturing.
In Spain, Cegasa Energía inaugurated a manufacturing plant in Vitoria-Gasteiz, with an initial output of 600 MWh per year scheduled for February 2026. The facility’s capacity is expected to reach 1.8 GWh annually by 2027. To accelerate its market entry and secure cell supply, Cegasa signed a technology partnership with China’s EVE Energy, a leading producer of lithium iron phosphate cells for battery energy storage systems. Iñigo Atutxa, CEO of Cegasa Energía, noted that the collaboration will support rapid expansion while maintaining a solid foundation and reinforce the company’s role in local technological and industrial growth.
The expansion has been underpinned by support from the Spanish Institute for Energy Diversification and Saving through its ERDF-co-financed calls. Under this program, Cegasa will deliver its first storage system in May 2026 for the Burriana project in Castellón, developed with Corporate Solar Holding and Beavier Photo Power. That system will provide 40 MWh of capacity.
In Finland, Skeleton Technologies officially opened its 1 GW SuperBattery factory in Varkaus following a €50 million investment. The facility is Europe’s first dedicated to high-power batteries for AI data centers and backup power for mission-critical computing, as well as emerging applications such as nuclear fusion. Taavi Madiberk, CEO and co-founder of Skeleton Technologies, said the factory will help establish sovereign European AI infrastructure by delivering extreme power, reliability, and sustainability.
The Varkaus site, previously operated by an early European battery manufacturer, now produces SuperBatteries using CBMM’s NBXCELER™ niobium oxides as anode material to enhance safety, performance, and lifespan. Ricardo Lima, CEO of CBMM, explained that niobium is integral to making AI infrastructure safer and more efficient. Skeleton’s technology offers sub-90-second charge times, up to 50,000 cycles, and does not use cobalt, nickel, graphite, or copper. The company currently employs over 65 people in Finland and plans to increase staffing to more than 200 by 2029.
Source: ESS News
