Stegra finishes installing all 37 thyssenkrupp nucera electrolysis modules at its Boden green steel plant

thyssenkrupp nucera/scalum alkaline electrolyser

Stegra completed installation of the 37 electrolyser modules that form its hydrogen plant in northern Sweden, a job begun in May 2025. The modules, assembled in Tarragona, Spain, arrived in more than 800 containers. The hydrogen will reduce iron ore for steelmaking; next come pre-commissioning and commissioning.

• Set to be Europe's largest green hydrogen plant, around 700 MW.
• Housed in four buildings at the Boden site.
• The steel plant is designed for 2.4 million tonnes a year.
• Stegra was seeking about EUR 1B more funding to finish the project.