The development timeline of Stiesdal Hydrogen
Stiesdal Hydrogen applies the industrial simplicity proven in wind power to electrolysis. From early laboratory tests in 2020 to serial production of modular electrolysers, the timeline reflects a continuous drive to simplify hydrogen technology for true industrial scale.
2020
First laboratory validation of industrial alkaline electrolysis
Drawing on the simplicity that redefined the wind industry, Stiesdal set out to simplify hydrogen production, not reinvent it. Through modular design and industrial manufacturing methods, electrolysers could become durable, standardised products instead of costly bespoke installations.
2020
Stiesdal Hydrogen incorporated
Following a study of the electrolyser market, Henrik Stiesdal identified a key inefficiency: while electrolyser stacks were often industrialised, surrounding Balance of Plant systems remained custom-built. Stiesdal Hydrogen A/S was created to industrialise the full process, applying the modular and scalable manufacturing methods proven in wind and solar power.
2022
First full-scale HydroGen Electrolyser completed
The first full-scale HydroGen Electrolyser was completed at the company’s facility in Give. The system demonstrated the feasibility of a fully modular, containerised alkaline solution integrating stack and balance-of-plant in a standardised architecture.
Validation of the modular design confirmed that alkaline electrolysis could be delivered as a product platform rather than a bespoke plant.
Validation of the modular design confirmed that alkaline electrolysis could be delivered as a product platform rather than a bespoke plant.
2023
First 3 MW HydroGen unit delivered commercially
The first commercial-scale 3 MW HydroGen Electrolyser was delivered to Shell Low Carbon Solutions and Andel’s Power-to-X facility in Glansager, supplying green hydrogen for biomethane production. This marked the transition from development to real-world operation under commercial conditions.
Delivery demonstrated that standardised electrolyser modules could be integrated into existing energy infrastructure without project-specific redesign.
Delivery demonstrated that standardised electrolyser modules could be integrated into existing energy infrastructure without project-specific redesign.
2023
Strategic industrial partnerships established
Industrial partnerships were formed with Danfoss, KK Wind Solutions (KK Group as of 2026) and Welcon to strengthen power electronics integration, system engineering and scalable manufacturing capabilities.
Building an industrial hydrogen platform requires coordinated supply-chain integration, enabling repeatable production and cost reduction through volume manufacturing.
Building an industrial hydrogen platform requires coordinated supply-chain integration, enabling repeatable production and cost reduction through volume manufacturing.
2024
Multi-unit delivery and operational validation
The second, third and fourth 3 MW HydroGen units were delivered to customer sites in Denmark. Operational experience confirmed system robustness, modular scalability and flexible integration across different applications.
Delivering identical systems to multiple customers under different conditions proved the technical repeatability essential for large-scale delivery.
Delivering identical systems to multiple customers under different conditions proved the technical repeatability essential for large-scale delivery.
2025
First serially produced HydroGen unit delivered
The fifth 3 MW HydroGen Electrolyser was delivered as Stiesdal Hydrogen’s first serial unit, marking the transition from pilot manufacturing to repeatable output. At the customer site in Måde, hydrogen generation began just 16 days after delivery.
Serial production and rapid commissioning at Måde showed that fabrication and delivery could be standardised, proving the consistency needed for true industrial scalability.
Serial production and rapid commissioning at Måde showed that fabrication and delivery could be standardised, proving the consistency needed for true industrial scalability.
2026 and beyond
Industrial-scale green hydrogen delivery
Stiesdal Hydrogen is progressing towards multi-megawatt deliveries through standardised electrolyser platforms, supporting large-scale Power-to-X and industrial decarbonisation projects.