Uniper and Stiesdal partner to develop mid-sized green hydrogen plants

Copenhagen, 22 May 2025

Uniper is a leading hydrogen developer in Europe, and this collaboration aligns their significant expertise with Stiesdal Hydrogen’s innovative electrolyzer technology.

“Stiesdal’s approach – emphasizing prefabrication, reduced civil works, and a no-building design – aligns with our goals to make green hydrogen affordable.”

– Jan Taschenberger, chief operating officer for new green power and gas at Uniper

By bringing modular, factory-assembled electrolyzer solutions directly to site, we significantly reduce installation complexity, speed up construction timelines, and lower overall infrastructure needs.

“A classic indoor installation for example requires a complex ventilation and safety concept. Here [with Stiesdal’s HydroGen electrolyzer] we see decisive advantages in the outdoor installation, which allows a reduction of complexity. Further approval requirements, such as [those] related to noise emissions, are comparatively simple and remain manageable.”

– Jan Taschenberger, chief operating officer for new green power and gas at Uniper



As Stiesdal Hydrogen’s Head of Sales and Business Development, Esben Baltzer Nielsen, points out:

“Uniper’s decision to select Stiesdal Hydrogen’s technology highlights our shared focus on simplifying installation and accelerating deployment. Our modular approach means we can assemble and commission a 3.1 MW electrolyzer system within a week – rapidly scaling green hydrogen solutions.”