Our history

Based in Aix-en-Provence, HELION Hydrogen Power has been created in 2001 by TechnicAtome (nuclear naval propulsion French company) in order to develop and spread out Fuel Cell technologies as an alternative solution for submarine nuclear propulsion.

2001 Creation of HELION - Development of the first H₂/O₂ anaerobic fuel cell in the world

2003 Diversification of our activities towards stationary and transport applications

2006 Acquisition of PEM electrolysis by technology transfer from AREVA GmbH

2007 Creation of the AREVA’s Renewable Business Group, HELION becomes a Business Unit

2010 Worldwide first fully-integrated electrolyzer and FC system, the Greenergy Box^TM

2012 Inauguration of the MYRTE platform, hydrogen-based energy storage coupled with a photovoltaic plant, still the largest H₂ eco-system in France in 2022

2014 Creation of H₂Gen, our subsidiary dedicated to the electrolysis activity

2017 Strategic realignment – Move to H₂/Air and higher power positioning

2021 ALSTOM acquires HELION Hydrogen Power