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March 6, 2024

Topsoe electrolyzer manufacturing facility receives environmental permit – construction on schedule for production in 2024

  • The Danish Environmental Agency grants Topsoe environmental permit for Topsoe’s Herning factory currently under construction.
  • The factory will produce Solid Oxide Electrolyzer Cells (SOEC) for the production of e-fuels.
  • The factory is on schedule to be in operation by 2024.

Topsoe, a global leader in carbon emission reduction technologies, has reached a key milestone in the form of environmental permit from the Danish Environmental Agency.

The approval from the Danish Environmental Agency means, that Topsoe’s factory lives up to both Danish and EU environmental regulations and standards. This includes using the best available technical solutions, introduction of emission cleaning systems, proper waste management plans, high efficiency in use of power and water, and more. The environmental approval further allows the factory to enter into commissioning stage and powering up equipment.

Kim Hedegaard, CEO Power-to-X at Topsoe, said:
“We are very satisfied with this stamp of approval from the Danish Environmental Agency. The factory, which will produce SOEC electrolysis units will mean a solid contribution to the green hydrogen economy, and this permit confirms that we’re on track building a factory adhering to all appropriate regulatory and sustainability standards.”

About SOEC
Topsoe’s SOEC electrolysis technology is a modular design that operates at significantly higher temperatures compared to other electrolyzer technologies – a tested and proven process that enables industrial-scale production of green hydrogen using renewable electricity.

When coupled with waste heat from downstream production (from processes producing ammonia, methanol, or steel production), Topsoe’s SOEC technology will produces 30% more hydrogen per total power input when compared to conventional electrolyzer technologies. It further allows for the lowest levelized hydrogen cost per megawatt volume, no matter the industry.

About Topsoe
Topsoe is a leading global provider of technology and solutions for the energy transition. We combat climate change by helping our customers and partners achieve their decarbonization and emission reduction goals.  

Based on decades of scientific research and innovation, we offer world-leading solutions for transforming renewable resources into fuels and chemicals for a sustainable world, and for efficient and low-carbon fuel production and clean air. 

We were founded in 1940 and are headquartered in Denmark, with over 2,800 employees serving customers all around the globe. To learn more, visit

For more information, please contact:
Ulrik Frøhlke, Media Relations Manager
Phone: +45 27 77 99 68 


About the Innovation Fund
The Innovation Fund is the EU fund for climate policy, with a focus on energy and industry. It aims to bring to the market solutions to decarbonize European industry and support its transition to climate neutrality while fostering its competitiveness. The Innovation Fund is financed through the EU Emissions Trading System (EU ETC).

Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or CINEA. Neither the European Union nor the granting authority can be held responsible for them.

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