A COMMITMENT TO DRIVING THE ENERGY TRANSITION, CLOSE TO THE USERS
From idea to energy
Born from a passion for innovation and sustainable energy, H2Gremm designs and manufactures in France hydrogen solutions aimed at making energy self-sufficiency accessible to all.
Since our beginnings, we have combined technology, performance, and environmental commitment to support the transition to cleaner, local energy.
2025
Commercialization
- ISO 9001 certification
- Partnerships with manufacturers and installers
24 people in the team
2024
2024 Paris Olympics Games
3 hydrogen vehicle refueling stations (forklifts and bikes) in partnership with Toyota
The team consists in 17 people
2023
CE Certification
- First mobility sale: refueling stations for hydrogen bikes
- Demonstrator: self-sufficient single-family home in Brest.
12 people in the team
2022
Filing of H2Gremm's 3rd patent
- 1st demonstrator: self-sufficient building in Edern (Finistère)
- 2nd demonstrator: hydrogen bike refueling station powered by a tidal turbine on the island of Ouessant
10 team members.
2021
Filing of H2Gremm's 2nd patent
- First prototype of a hydrogen production and compression module powered by solar energy.
- Award of a FEDER grant by the Brittany Region for the deployment of demonstration units..
7 people in the team
2020
Filing of H2Gremm's 1st patent
First computer modeling and simulations of our innovative concept, in close collaboration with the CEA and Estia
4 team members
2019
H2Gremm creation
H2Gremm was founded in 2019 by Alain Rocheux and Olivier Le Strat.
