SILICON VALLEY CHAPTER of the AMERICAN HYDROGEN ASSOCIATION
Fuel cells to power heavy trucks and airplanes are still too expensive and the means to store sufficient hydrogen fuel to power a long haul truck or a jet airplane is still limiting. But APUs (auxiliary power units) that provide power when trucks are parked or airplanes are on the ground are being rapidly introduced.
Delphi SOFC APU
Airbus A380 with FC APU