An Airgen portable generator built by Ballard Power Systems in Canada, based on a 1.2 kW PEM fuel cell. Its applications include uninterruptible power supply (UPS) for computers and on-site power generation.

Its retail price is ∼ U.S. $6000.

The generator is presently fuelled by compressed hydrogen, however, hydrogen stored in metal hydride canisters is expected to be available soon