An onboard hydrogen storage unit with heat transfer system for a hydrogen powered
vehicle. The system includes a hydrogen storage vessel containing a hydrogen storage
alloy configured to receive a stream of hydrogen and provide hydrogen for use in
powering a vehicle. During refueling a cooling/heating loop is used to remove the
heat of hydride formation from the hydrogen storage alloy and during operation
of the vehicle the heating/cooling loop is used to supply heat to the hydrogen
storage alloy to aid in hydrogen desorption.