Fortum begins producing hydrogen at Kalla Test Center

In Finland, Fortum has succeeded in producing first hydrogen at Kalla Test Center in Loviisa, Finland, during the first phases of the commissioning of the electrolyzer equipment. The test center is expected to be fully operational during spring 2026. Fortum is committed to accelerating electrification across the Nordics, and the Kalla Test Center will contribute to that goal.

Hydrogen at Kalla is produced through electrolysis — splitting water into hydrogen and oxygen using fossil-free electricity. Hydrogen acts as an energy carrier that can store and transport energy without producing CO₂ when used, making it valuable where direct electrification is not possible. Two electrolyser technologies integrated into one plant are being commissioned in phases.

·      1 MW alkaline electrolyser from Stargate Hydrogen

·      0.75 MW PEM electrolyser from Hystar

Operating both systems under real conditions provides valuable insights into efficiency, flexibility, safety and scalability.