Spiral Hydrogen develops a centrifugal, bubble-free electrolyser for more efficient, lower-cost green hydrogen and has raised €2.7 million in pre-seed funding backed by byFounders, Norrsken Evolve, Superangel, and €700,000 in grants.
- Founded in 2024 by Juri Volodin and Fedor Stomakhin, Spiral Hydrogen develops a centrifugal, bubble-free alkaline electrolyser aimed at improving the efficiency and cost of green hydrogen production.
- Its system rotates the electrolyte to maintain continuous flow while using hydrophobic porous electrodes that allow gases to pass directly into dedicated channels, preventing bubble formation that typically limits performance in conventional electrolyzers.
- The design enables higher current densities and improved heat and thermal management while reducing system complexity by removing several external components, with the objective of lowering the levelized cost of hydrogen toward parity with fossil-based production.
Details of the deal
- The €2.7 million round will fund Spiral Hydrogen’s move from lab-scale development to an industrial pilot in Rotterdam, where the team will validate its bubble-free electrolyser under real operating conditions with SwitcH2 Offshore and lay the groundwork for future commercial deployment.





