Windwasserstoff Salzgitter WindH2 Commissioned
Windwasserstoff Salzgitter WindH2WindH2

Windwasserstoff Salzgitter WindH2 Commissioned

Salzgitter AG, Avacon and Linde have taken an important and exemplary step on the way to decarbonising German steel industry. With the commissioning of

Salzgitter AG, Avacon and Linde have taken an important and exemplary step on the way to decarbonising German steel industry. With the commissioning of the sector coupling project Windwasserstoff Salzgitter WindH2, which is unique in Germany, green hydrogen will in future be generated on the site of the steelworks in Salzgitter using electricity from wind energy. WindH2 forms a central component of the developed by Salzgitter AG technology project SALCOS, SA lzgitter L ow CO 2 S teelmaking, to reduce CO2 emissions and even to almost CO2-free steel production in the long term. Hydrogen produced from renewable sources will replace the carbon previously required for smelting iron ores. The three blast furnaces operated so far must be gradually replaced by a combination of direct reduction systems and electric arc furnaces. Such a transformation of steel production could reduce its CO 2 emissions by around 95% by the year 2050.

Avacon, a company of the E.ON Group, operates seven newly built wind turbines with a total output of 30 megawatts on the Salzgitter AG site. Salzgitter Flachstahl GmbH installed two Siemens 1.25 megawatt PEM electrolysis units centrally on the factory premises, which will generate around 450 cubic meters of high-purity hydrogen per hour. Hydrogen is already being used in steel production for annealing processes and in hot-dip galvanizing plants. The industrial gas producer Linde is currently delivering the gas by truck and will continue to ensure the continuous supply of hydrogen demand in the future. All systems are currently in trial operation.

The costs for the entire project, - construction of the wind turbines and the hydrogen systems including their integration into the existing pipeline networks, amount to around 50 million euros. The construction of the electrolysis was funded by KfW.

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