Salzgitter AG and Sunfire are collaborating to promote the use of innovative Solid Oxide Electrolysis Cell (SOEC) technology in the steel industry to produce green hydrogen. This initiative is part of the GrInHy3.0 research project, which involves the TU Bergakademie Freiberg. The focus is on implementing the latest SOEC stack technology to advance the production of green hydrogen at an industrial scale. The steel industry acknowledges the significance of green hydrogen in its decarbonization efforts, and the high-temperature SOEC technology is seen as a key enabler due to its efficiency and cost-effectiveness. Specifically, efforts are being made to integrate this technology into the hydrogen network of the Salzgitter Flachstahl GmbH steel mill, showcasing a practical application of SOEC technology in a real-world industrial setting.