Topsoe Will Build “World’s Largest” Electrolyzer Plant

Sept. 6, 2022
Manufacturing capacity reportedly will be 500 megawatt per year with an option to expand to 5 gigawatt.

Topsoe says it has confirmed its final investment decision for construction of the “world’s largest” SOEC electrolyzer manufacturing plant in Herning, Denmark. Manufacturing capacity reportedly will be 500 megawatt per year with an option to expand to 5 gigawatt. Construction is set to start in the second half of 2022.

“The case for using electrolysis to produce green fuels is now well established, but manufacturing capacity has always been the challenge. We are facing this challenge head on,” says Topsoe CEO Roeland Baan in a press release from the company. “We are dedicated to taking the lead on scaling power-to-x technology to help drive the energy transition, and we are investing over DKK 2 billion to meet this demand and address this fundamental supply weakness. This is the single biggest investment in the company’s history, clearly highlighting our commitment to driving the energy transition, and we hope this huge facility will act as a catalyst for new investment in the future.”

Sundus Cordelia Ramli, CCO of Topsoe’s Power-to-X division, adds, “With this new state-of-the-art manufacturing facility, we are taking power-to-x technology into a commercially competitive position, ultimately making the case for decarbonization unarguable. We already have 500 megawatt of pre-sold capacity and are in discussions with other potential offtake partners as well, who find our electrolyzer technology attractive, and look forward to being able to make more announcements in due course.”

At 500 MW capacity per year, the new facility reportedly will be the world’s largest SOEC manufacturing plant. This is a rapid acceleration not just for Topsoe, but also Denmark, and the EU towards a green energy transition while reducing dependence on fossil fuels, according to Topsoe. Topsoe says it is also delivering on its REPowerEU ambitions. In May 2022, the company signed a joint declaration along with other industry leaders and the European Commission to commit to a tenfold increase of European electrolyzer manufacturing capacity by 2025.

Read the press release at