GrInHy 2.0

GrInHy2.0 (Green Industrial Hydrogen via steam electrolysis) is a follow-up project of the first stage of GrInHy which has already operated successfully in Salzgitter. Together with project partners Sunfire GmbH, Paul Wurth S.A., Tenova SpA, French research center CEA and Salzgitter Mannesmann Forschung GmbH, a Steam Electrolyser (StE) is being constructed for the energy efficient production of hydrogen. Due to a significant energy input in the form of steam preferably from industrial waste heat, Steam Electrolysis based on Solid Oxide Electrolysis Cells (SOEC) achieves good electrical efficiencies. GrInHy2.0 implements a high-temperature electrolyser with an electrical power input of 720 kilowatt (producing 200 Nm³/h (18 kg/h)) in an industrial environment. By the end of 2022 it is expected to have been in operation for at least 13,000 hours, producing a total of around 100 tonnes of high-purity (99.98 %) hydrogen. This will be used for annealing processes in the integrated steel works as a replacement for hydrogen produced from natural gas. The GrInHy2.0 project has an overall budget of € 5.5 million.

Sunfire GmbH, Paul Wurth S.A., Tenova SpA, French research centre CEA and Salzgitter Mannesmann Forschung GmbH
720 kWel in, producing 600 kWh hydrogen per hour
Steam electrolysis based on SOEC
In development, plant expected in 2021
Salzgitter, Germany

Related projects