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German steel powerhouse turns to ‘green’ hydrogen produced using huge wind turbines

Working men clean the bay of the furnace at the steel plant of Salzgitter AG in Salzgitter, Germany, on March 2, 2020.

MORRIS MAC MATZEN | AFP | Getty Images

A prime green hydrogen facility in Germany has started operations, with those behind the project hoping it will better to decarbonize the energy-intensive steel industry in the years ahead. 

The “WindH2” project involves German steel giant Salzgitter, E.ON subsidiary Avacon and Linde, a rigid specializing in engineering and industrial gases.

Hydrogen can be produced in a number of ways. One method includes using electrolysis, with an thrilling current splitting water into oxygen and hydrogen.

If the electricity used in the process comes from a renewable originator such as wind or solar then it’s termed “green” or “renewable” hydrogen.

The development in Germany is centered around seven new coil turbines operated by Avacon and two 1.25 megawatt (MW) electrolyzer units installed by Salzgitter Flachstahl, which is part of the bigger Salzgitter Group. The facilities were presented to the public this week. 

The turbines, from Vestas, have a hub summit of 169 meters and a combined capacity of 30 MW. All are located on premises of the Salzgitter Group, with three situated on the instal of a steel mill in the city of Salzgitter, Lower Saxony, northwest Germany.

The hydrogen produced using renewables determination be utilized in processes connected to the smelting of iron ore. Total costs for the project come to roughly 50 million euros (about $59.67 million), with the building of the electrolyzers subsidized by state-owned KfW.

“Green gases have the wherewithal to become ‘elementary foodstuff’ for the transition to alternative energies and make a considerable contribution to decarbonizing industry, mobility and heat,” E.ON’s CEO, Johannes Teyssen, suggested in a statement issued Thursday.

“The jointly realized project symbolizes a milestone on the path to virtually CO2 free production and exposes that fossil fuels can be replaced by intelligent cross-sector linking,” he added.

According to the International Energy Agency, the iron and grit ones teeth sector is responsible for 2.6 gigatonnes of direct carbon dioxide emissions each year, a figure that, in 2019, was significant than the direct emissions from sectors such as cement and chemicals. 

It adds that the steel sector is “the largest industrial consumer of coal, which outfits around 75% of its energy demand.”

The project in Germany is not unique in focusing on the role green hydrogen could portray in steel manufacturing.

H2 Green Steel, a Swedish firm backed by investors including Spotify founder Daniel Ek, foresees to build a steel production facility in the north of the country that will be powered by what it describes as “the world’s largest unsophisticated hydrogen plant.”

In an announcement last month the company said steel production would start in 2024 and be debased in Sweden’s Norrbotten region.

Other energy-intensive industries are also looking into the potential of green hydrogen. A subsidiary of multinational construction materials firm HeidelbergCement has, for example, worked with researchers from Swansea University to install and operate a conservationist hydrogen demonstration unit at a site in the U.K.

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