Decarbonization Topsoe Develops World’s First Industrial Scale SOEC Electrolyzer Facility
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Topsoe’s new facility in Denmark will manufacture electrolyzers in order to produce green hydrogen. The factory is expected to have an initial 500 MW manufacturing capacity and will be operational by 2025.

Lyngby/Denmark – Topsoe is dedicated to delivering the solutions needed to decarbonize hard-to-abate sectors such as aviation, shipping, long-haul transportation as well as heavy industry, responsible for around 30 percent of global emissions. To reach net zero on a global scale in 2050 an estimated 3670-gigawatts of installed electrolysis capacity is required by 2050. A prerequisite for having enough installed electrolyzer capacity, that enables industry producing green hydrogen, is to build up manufacturing capacity at speed. And that is exactly what Topsoe is doing.
Roeland Baan, CEO at Topsoe, said: “The case for using electrolysis technology to produce green fuels is well established, but actual manufacturing capacity is needed at speed. We are facing this challenge head on. Our climate is in crisis and in need of resolute and massive solutions to cut emissions and turn the tables on climate change, ensuring a better world for generations to come. In combination with foresightful partners and customers and strong public-private sector collaboration, we’ll be able to make a substantial contribution to the energy transition, help secure energy independence, and fuel the green economy in Europe and globally.”
Kim Hedegaard, CEO Power-to-X at Topsoe, said: “Our factory will take high-temperature electrolysis from the laboratory environment to industrial scale and provide the first industrial use case. Our SOEC technology helps to answer the question of how to turn on the power when the winds aren’t blowing, and the sun isn’t shining, as green hydrogen and its derivatives can be stored and ready to use when we have a deficit in renewables. It also bridges the gap between renewable energy and the hard-to-abate sectors, that we in Topsoe are determined to decarbonize.”
Present at the celebration was, among others, Denmark’s Minister for Climate, Energy, and Utilities, Lars Aagaard; Mayor at Herning Kommune, Dorte West; and CEO at First Ammonia, Joel Moser. Director-General Energy at the EU Commission, Ditte Juul-Jørgensen gave a video-recorded keynote.
Facts about the SOEC factory
Location: Herning, Denmark
Size: 23,000 square meters
Number of employees: 150 ones the factory is operational
Annual capacity: 500 MW – equaling production of 125,000 tonnes of hydrogen – with an option to expand further.
World’s first industrial scale SOEC electrolyzer manufacturing facility
Operational: Expectedly by 2025.
First Ammonia will be the first customer to start leveraging Topsoe’s SOEC electrolyzers.
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