fuel cells hydrogen energy electrolyzer

HELION fuel cell manufacturer

KEY PLAYER IN THE HYDROGEN AND FUEL CELL INDUSTRY

Welcome


In our facilities in Aix-en-Provence (France), we design, manufacture and commercialize PEM* fuel cell stacks and fully-integrated hydrogen systems with a power range from a hundred kW to MW+.

We also supply turnkey services to support our clients through their operations and assets management.

With 20 years of expertise, we have developed a solid engineering know-how, built a strong partnership network and completed numerous referenced projects with several world premieres.

As a key player in the hydrogen sector for more than 20 years, HELION has been member of H2 associations (France Hydrogène, Hydrogen Europe) and competitiveness clusters (Capénergies, Pole Mer). 

* Proton Exchange Membrane

Helion key player in the hydrogen and fuel cell industry
40

patents

100

projects

100

million €
already spent in our R&D

30

MW per year

Helion

OUR MARKETS AND APPLICATIONS

Helion

Our last news

Inauguration of our new fuel cell megafactory in Aix-en-Provence
Inauguration of our new fuel cell megafactory in Aix-en-Provence
On June 13, we inaugurated our brand new Delta site in Aix-en-Provence. This state-of-the-art building, which brings together three of the group's entities, represents a major strategic milestone for Alstom in the South of France and for Helion, which now benefits from a substantial industrial platform for the high-power fuel cell megafactory.  This new facility significantly strengthens our testing, engineering, and production capabilities. It will allow us to optimize the service we offer our customers and increase our contribution to the decarbonization of industry and regions.  This ambitious project would not have been possible without the exceptional dedication of our teams. We would like to thank Team Helion and Team Alstom for their unwavering commitment. We also extend our thanks to our valued partners and local institutions, including the Sud - Provence-Alpes-Côte d'Azur Region, the Aix-Marseille-Provence Metropolis, and the City of Aix-en-Provence.  We are excited to see the wonderful projects and fruitful collaborations that will emerge from this new center of expertise. The future of sustainable mobility is being built here, in the heart of Provence! Photo credit: Roger Lomini

[...]

View more
World Hydrogen Summit 2025: Make way for hydrogen and fuel cells!
World Hydrogen Summit 2025: Make way for hydrogen and fuel cells!
The HELION team was present in Rotterdam on May 20th and 21st at the French Pavilion for B2B meetings.This show was a real success, highlighting the most innovative solutions from electrolyzer and fuel cell manufacturers, among others. Our participation was also an opportunity to meet at the French residence in The Hague with His Excellency Mr. François Alabrune, Ambassador of France to the Netherlands; His Excellency Mr. Jan Versteeg, Ambassador of the Netherlands to France; and Didier Boulogne, Deputy Director General for Export at Business France, along with his Dutch team.These meetings, which strengthen relationships between the French hydrogen ecosystem and Dutch institutions and industries, are essential for the future of hydrogen!

[...]

View more
HELION Exhibits at Meet4Hydrogen 2025 in Marseille
HELION Exhibits at Meet4Hydrogen 2025 in Marseille
This major event for the local hydrogen ecosystem, held in Marseille, represents a unique opportunity for all industry stakeholders to come together and discuss the challenges and projects related to hydrogen. On the agenda: Presentation of Ambitious Projects: Initiatives that are crucial for the hydrogen sector will be presented, highlighting innovation and research in this field. Exchanges with Key Stakeholders: The day brings together industry professionals and engaged policymakers, fostering constructive discussions on the future of hydrogen. Participation in the Delivery Award: We had the honor of participating in the presentation of the Delivery Award, which recognizes concrete achievements in the field of hydrogen on the ground.  

[...]

View more