This fully revised and updated second edition: Provides an essential guide to the principles, design, and application of fuel cell systems; Includes full and updated coverage of fuel processing and hydrogen generation and storage systems; Presents a full and clear explanation of the operation of all the major fuel cell types, and an introduction to possible future technology, such as biological fuel cells; Features a new chapter on the direct methanol fuel cell; Now includes examples of the modeling, design, and engineering of real fuel cell systems; A clear overview of fuel cell operation and thermodynamics; and Coverage of the complete fuel cell system including compressors, turbines, and the electrical and electronic sub-systems such as regulators, inverters, grid inter-ties, electric motors, and hybrid fuel cell/battery systems.