What is it about?
Prototypes:
- LMPH2G (2018): The project’s inaugural prototype, the Le Mans Prototype Hydrogène Gazeux (LMPH2G), was introduced in 2018. This hydrogen-electric vehicle participated in free practice sessions of the Michelin Le Mans Cup and utilised a mobile hydrogen refuelling station developed by TotalEnergies.
- H24 (2021): Building upon the LMPH2G, the H24 prototype debuted in 2021. It competed in several Michelin Le Mans Cup races during 2022, successfully completing events at circuits like Imola, Road To Le Mans, and Portimão.
- H24EVO (2024): The latest evolution, the H24EVO, was unveiled in June 2024. This prototype represents a significant advancement in hydrogen-electric racing technology, with plans to commence track testing in April 2026. The H24EVO is designed to compete on par with top-tier LMGT3 vehicles, featuring a 300 kW Symbio fuel cell and a 400 kW lithium battery, collectively delivering up to 872 horsepower.
In January 2025, MissionH24 announced a pivotal shift from gaseous to liquid hydrogen storage for the H24EVO. This transition allows the vehicle to store approximately 11-14 kg of hydrogen, extending its operational range to around 40 minutes per stint—an increase from the previously estimated 25-30 minutes. Liquid hydrogen offers higher energy density, which is advantageous for endurance racing. However, it necessitates maintaining extremely low temperatures (around -253°C) to keep the hydrogen in its liquid state, presenting unique engineering challenges.
MissionH24 continues to spearhead the integration of hydrogen technology in motorsport, with the H24EVO’s track debut anticipated in April 2026. The project’s overarching objective is to establish a hydrogen-powered class at the 24 Hours of Le Mans by 2028, aligning with broader goals of achieving zero-emission racing and advancing sustainable mobility solutions.
Informative Materials
Image: MissionH24/ACO (missionh24.fr)
