German steel company commissions wind-powered hydrogen project
This project is the only one of its kind in Germany, according to the companies.
WindH2 is a central component of Salzgitter AG’s SALCOS, a Salzgitter low CO2 steelmaking technology project. SALCOS uses hydrogen generated from renewable sources, which replaces the carbon previously required for iron ore smelting.
The three blast furnaces in operation at SALCOS will be gradually replaced by a combination of direct reduction plants and electric arc furnaces. This method aims to achieve almost CO2-free steel production in the long term. Such a transformation of steel production could reduce CO2 emissions by around 95% by 2050, according to a press release.
The newly constructed facilities were presented to the public on March 11, 2021. Among those present were State Secretary Andreas Feicht, Federal Ministry for Economic Affairs and Energy; Dr. Bernd Althusmann, Lower Saxony Minister for Economic Affairs, Labor, Transport and Digital Affairs; Olaf Lies, Lower Saxony Minister for the Environment, Energy, Building and Climate Protection; Dr. Johannes Teyssen, CEO of E.ON SE; Marten Bunnemann, CEO of Avacon AG, and Prof. Dr.-Ing. Heinz Jörg Fuhrmann, CEO of Salzgitter AG.
Avacon operates seven newly constructed wind turbines with a total capacity of 30MW on the Salzgitter AG site. Salzgitter Flachstahl GmbH has also installed two Siemens 1.25MW PEM electrolysis units on the site, 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 the hot-dip galvanizing lines. Industrial gas producer Linde currently supplies the gas by truck.
The costs for the entire project amount to around €50 million ($59.9 million) and the construction of the electrolysis plant was funded by state-owned development bank KfW.
“The “Windwasserstoff Salzgitter – WindH2″ project was supported by the Federal Ministry for Economic Affairs and Energy with 1.1 million euros from the federal funding for energy efficiency in the economy,” Feicht said.
“With the sector coupling of wind energy and hydrogen production, the project implements one of the objectives of the German government’s National Hydrogen Strategy: The use of climate-friendly hydrogen produced from renewable energies is a key element for decarbonisation in industry.”
Dr. Teyssen said: “Green gases have what it takes to become the “staple” of the energy transition and make a significant contribution to decarbonising industry mobility and heat. The jointly implemented project symbolises a milestone on the way to virtually CO2-free steel production and shows that intelligent sector coupling can replace fossil fuels.”
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