PEM fuel cells are used in drones, ground robots, light vehicles and silent backup power when they are small and air-cooled. Large, liquid-cooled ones drive cars, buses and trains.
Where small air-cooled fuel cells are used
- Large industrial drones that fly long missions
- Ground robots and small work machines
- Backup power for telecom masts, remote sensors and cameras
- Light mobility: over 500 certified hydrogen bicycles have been delivered from our technology, and more than 250 are in daily use
Hydrogen systems from our heritage company Pragma Industries were in service at the G7 summit in Biarritz in 2019 and at the Paris Olympic Games in 2024.
See our PEM fuel cell stacks.
Figures from the Unconventional Energy product pages. Updated 2 November 2026.