Topsoe launches 500MW electrolyser facility in Denmark

  • Gas
  • October 31, 2025

Denmark-based energy transition technology provider Topsoe has launched a solid oxide electrolyser cell manufacturing facility with an annual capacity of 500MW, with the option to scale further.

The new site is located in Herning, Denmark, and represents the company’s single biggest investment to date. It is supported by €94m from the EU Innovation Fund.

The electrolyser stacks will be used to produce green hydrogen, a feedstock for ammonia and e-methanol which can be used to reduce emissions across industrial sectors.

According to the company, it will be able to service up to 10GW of installed capacity at customer sites after ten years, cutting CO2 emissions by 15 million metric tonnes compared to hydrogen from natural gas.

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