A fuel-cell-powered vehicle includes an electrically-powered turbine assembly having a housing, a rotating shaft, an air compressor comprising a compressor stator fixed to the housing and a compressor rotor fixed to the rotating shaft, an electric motor including an electric motor stator fixed to the compressor stator and an electric motor rotor fixed to the rotating shaft, a turbine including a turbine stator affixed to the housing, a turbine rotor fixed to the rotating shaft, and two or more fuel cells arranged around an outside of the electrically-powered turbine assembly.