SynopsisSalzgitter AG, on the path to achieving virtually CO₂-free steel production through its SALCOS® program, has entrusted ANDRITZ GROUP with the construction of a colossal 100 MW green hydrogen plant. This transformative project will harness pressurized alkaline electrolyzer technology from HydrogenPro, aiming to produce 9,000 metric tons of green hydrogen annually by 2026. The green hydrogen will replace coal on an industrial scale, marking a significant milestone in Salzgitter's pursuit of sustainability in steel production.ArticleIn a groundbreaking stride towards sustainable steel production, Salzgitter AG has embarked on a transformative journey with ANDRITZ GROUP, setting the stage for one of Europe's largest green hydrogen plants. This monumental endeavor, a cornerstone of the SALCOS® program, represents a significant shift towards virtually CO₂-free (green) steel production.The alliance with ANDRITZ will see the construction of a 100 MW electrolysis plant at the Salzgitter Flachstahl GmbH site. This project, executed on an Engineering, Procurement, and Construction (EPC) basis, will integrate HydrogenPro's pressurized alkaline electrolyzer technology. Commencing operations in 2026, this plant is slated to generate a staggering 9,000 metric tons of green hydrogen annually, destined to power the production of green steel. It heralds the industrial-scale adoption of hydrogen as a vital component of the SALCOS® program's green steel vision.Ulrich Grethe, Chairman of the Salzgitter Flachstahl GmbH Management Board, emphasized the profound significance of this venture, stating, "The commissioning of the electrolysis plant marks a significant step in the SALCOS® program and underlines our leading position in the transformation of the industry. In order to enable us to reduce the CO2 footprint of our steel production in the future, it is imperative that we connect to the emerging hydrogen infrastructure as quickly as possible. This is the only way we will be able to fully exploit the potential of SALCOS®."Domenico Iacovelli, ANDRITZ GROUP Executive Board Member, expressed pride in Salzgitter's selection of ANDRITZ as a partner in this ambitious green steel production journey. The compact design of ANDRITZ's green hydrogen plant seamlessly aligns with existing infrastructure, and their extensive experience in executing large-scale projects instills confidence in the successful realization of this innovative endeavor.The SALCOS® program is a multi-stage transformation initiative. The first stage, anticipated to go live by 2026, encompasses a direct reduction plant, an electric arc furnace (both previously ordered), and the 100 MW electrolysis plant for green hydrogen production. This forward-looking plan aims to achieve virtually CO₂-free steel production at the Salzgitter site well ahead of statutory requirements by the end of 2033.The financing for the initial phase of SALCOS® is secured through subsidies from the Federal Republic of Germany, the State of Lower Saxony, and Salzgitter AG's substantial internal resources.ConclusionSalzgitter's collaboration with ANDRITZ heralds a new era in the steel industry, where green hydrogen takes center stage. This 100 MW electrolysis plant is a testament to the commitment to sustainability and the urgent need for hydrogen infrastructure development. The SALCOS® program's vision of virtually CO₂-free steel production inches closer to reality, marking a milestone that will echo in the annals of industrial transformation.