Hystar AS, a global frontrunner in high-efficiency PEM electrolyzer technology, has entered into a strategic collaboration with McDermott to design a fully integrated 100-megawatt green hydrogen production facility. The partnership marks a major milestone in Hystar’s effort to scale its advanced electrolyzer systems for industrial customers worldwide.
Under the new agreement, Hystar will supply its proprietary high-performance PEM electrolyzers, known for exceptional efficiency, safety, and ultra-low hydrogen production costs. McDermott will contribute more than a century of engineering excellence and its extensive experience delivering large-scale hydrogen, ammonia and low-carbon infrastructure through FEED, EPC, and modular execution models.
Together, the companies will co-develop a comprehensive plant reference design that optimizes capital efficiency, operational flexibility, and delivery timelines. The 100 MW blueprint is intended to simplify deployment for customers by reducing technical complexity, de-risking procurement, and accelerating project schedules—supporting applications across refining, synthetic fuels, ammonia production, steelmaking, and heavy mobility.
The collaboration was announced at the Hydrogen Technology World Expo in Hamburg, underscoring growing global demand for bankable, scalable hydrogen solutions.
“This partnership highlights our shared commitment to driving the clean energy transition,” said Rob Shaul, Senior Vice President of Low Carbon Solutions at McDermott. “By pairing McDermott’s global EPC capabilities with Hystar’s breakthrough PEM electrolyzer technology, we are creating a scalable model for future green hydrogen installations.”
Hystar CEO Fredrik Mowill added: “Working with McDermott allows us to bring Hystar’s high-efficiency PEM systems to market faster and at larger scale, backed by a trusted EPCI delivery framework.”
The collaboration strengthens Hystar’s momentum as one of the industry’s most promising electrolyzer manufacturers and reinforces its mission to make cost-effective green hydrogen accessible worldwide.
