Electrolysis Plant Starts Trial Operations in Salzgitter
Electrolysis Plant SalzgitterSalzgitter

Electrolysis Plant Starts Trial Operations in Salzgitter

As part of the GrInHy2.0 research project funded by FCH, Salzgitter Flachstahl GmbH installed the world's largest high-temperature electrolysis. With a

As part of the GrInHy2.0 research project funded by FCH, Salzgitter Flachstahl GmbH installed the world's largest high-temperature electrolysis. With a nominal output of 720 kWel, the plant can produce 200 Normal Meter Cubed per Hour hydrogen. Salzgitter Flachstahl GmbH will use this hydrogen for its annealing processes and displace hydrogen produced from natural gas. Later, the iron ore direct reduction plant will also be supplied, which will go into operation in the first half of 2022 as part of our SALCOS technology concept.

On December 9, 2020, the plant fed high purity hydrogen into the plant's own network for the first time. The GrInHy2.0 project thus reached an important milestone in the work plan.

The project itself started in January 2019. The design, engineering and plant construction of the prototype took place in close cooperation between the key partners Sunfire, Paul Wurth and Salzgitter Flachstahl under the project coordination of Salzgitter Mannesmann Research. In parallel to the construction of the electrolyser and the associated hydrogen processing plant, SZFG expanded the necessary infrastructure. Compared to the previous GrInHy project, the current system consists of an electrolyser that is five times more powerful and does not even require twice as much space. The power density of the technology could be tripled!

The next goals are now operational in nature: within the next two years the system should be operated for at least 13,000 hours and demonstrate a system availability of more than 95%. During this period the electrolyser should produce at least 100 tons of green hydrogen and demonstrate an electrical efficiency without compression of over 84% lower heating value.

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