The second edition of this highly popular bestseller updates every chapter to present a complete and current exploration of the technical and commercial aspects of the rapidly maturing fuel cell technology that is at the heart of our energy future. It provides background and covers critical advancements in high and low temperature fuel cells, fuel cell systems, catalysis, and fuel generation. Fully accessible to the non-expert, the book discusses recent fuel cell applications in the automotive industry, as well as advancements in stationary power generation, and portable power devices. New chapters cover fuel production, and the development of a long-term strategy for creating a hydrogen fuel infrastructure for vehicles. It also provides commercial information on suppliers and looks at component and systems cost development. Each chapter concludes with a list of questions and problems for self-study.