Abstract: A fuel cell power plant for producing electricity uses pressurized reactants in the cells. In one embodiment air for the fuel cells is compressed in a compressor driven by a turbine which is powered by waste energy produced in the power plant in the form of a hot pressurized gaseous medium. The power plant includes fuel conditioning apparatus comprising a steam reforming reactor and a reactor burner to provide heat for the steam reforming reactor. Effluent gases from the anode side of the cells are delivered into the reactor burner and from the reactor burner are combined with effluent gases from the cathode side of the cells. The combined gases are used to drive the turbine. Water to produce steam for the steam reforming reactor is recovered from the effluent gases from the anode side of the cells before they are delivered into the reactor burner and from the effluent gases from the cathode side of the cells.