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High-efficiency 5-stroke hydrogen engine for heavy mobility & power gen, outperforming electric & current hydrogen tech

March 2024
Gallery E265 1
Gallery E265 1


EHM provides its innovative hydrogen engine, designed for a broad range of applications from 50kW to 370kW. This hydrogen combustion engine, featuring a unique five-stroke technology, is ideal for heavy mobility including trucks, coaches, and buses, as well as for power generators and maritime applications. It stands out for its exceptional energy efficiency and competitive total cost of ownership, establishing EHM as a pioneer in sustainable and economical propulsion.

Label Date March 8, 2024
From France
Maturity stage Prototype testing 1:1 in the lab
Looking For Réseau, Nouveaux clients, Visibilité, Financement, Partenaires, Crédibilité

The environmental benefits

  • A power of 265kW H2-ICE
  • Composed of 5 cylinders
  • 100% elimination of CO2 emission during use
  • 100% elimination of rare-earth elements in a groundbreaking motorization system

The Financial benefits

  • 2 times less expensive than the purchase price of electric and fuel cell alternatives
  • 100% TCO comparable to diesel

Activity Region

  • /



  • Headquarters
  • Activity

Company Profile

Efficient Hydrogen Motors

Propulser un futur sans émissions ! Un moteur à combustion interne spécialement conçu pour les caractéristiques de l'H2

View company profile Solution website
Headquarters 29150 Cast, France
Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Efficient Hydrogen Motors has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.