Turning up the voltage – AC:DC delivers

Dynelectro’s 250 kW Dynamic Electrolysis Plant Achieves Successful Hydrogen Production

Dynelectro has reached a significant milestone in the development of next-generation solid oxide electrolysis (SOEC) technology. Our 250 kW plant has now successfully produced hydrogen, marking an important step toward commercial deployment of high-efficiency electrolysers for large-scale green fuel production.

A major step forward in high-temperature electrolysis

The 250 kW plant is the first in Dynelectro’s planned series of scalable SOEC systems designed to demonstrate reliable, high-efficiency hydrogen production under real-world operating conditions. The unit integrates our proprietary reversible AC:DC technology, enabling operation at higher electrical efficiencies than conventional low-temperature electrolysers.

Achieving first hydrogen confirms the system’s performance, stability and integration across the balance of plant. It also validates key design updates made to support industrial-scale manufacturing and long-duration operation.

Deployment at an operating biogas plant

Following validation testing, the 250 kW plant will be deployed at an operating biogas plant where it will form a key part of a groundbreaking power-to-X implementation. The existing biomethane facility will be expanded to include e-methane production by combining biogenic CO₂ from the biogas process with green hydrogen generated by Dynelectro’s electrolyser.

This integration demonstrates a practical route to converting biogenic carbon into fully renewable synthetic methane. The resulting e-methane can be injected directly into the natural gas grid or used as a carbon-neutral fuel for transport and industry, providing a replicable model for decarbonising biomethane facilities across Europe.

Unlocking more efficient green hydrogen

Dynelectro’s technology offers a pathway to produce green hydrogen using significantly less electricity compared with established technologies. By operating at high temperatures, the system uses thermal energy to reduce electrical input requirements, which can translate into up to 30% lower operational costs. The 250 kW demonstration plant is a crucial step toward scaling the technology to multi-megawatt installations capable of supplying green hydrogen for e-fuels, heavy industry and long-duration energy storage.

A milestone for our team and partners

The successful operation of the unit reflects the combined effort of Dynelectro’s engineering, research and project teams along with valued partners who support our mission to accelerate the transition to sustainable fuels. The milestone strengthens Dynelectro’s position as a global frontrunner in advanced electrolysis and provides important validation for upcoming deployments.

Next steps

With first hydrogen now achieved, the 250 kW plant will continue through extended testing to verify durability, efficiency and dynamic operation. Data from the system will inform the design of Dynelectro’s next-generation megawatt-scale units, moving us closer to widespread commercial rollout and real-world deployment of e-methane production systems.