This book is an authoritative, up-to-date reference text that will assist advanced study and research to maintain an essential rate of progress in the field. The authors describe the motivation for marine energy and provide an overview of all categories of marine energy currently available. They go on to systematically describe all wave and tidal energy converter technologies in detail including the advantages and remaining challenges to be overcome for each. Following the book’s introduction, chapter two makes a close study of the fundamentals and varying converter technologies associated with Wave Energy Technology. Tidal Energy Technology is given the same treatment in chapter three. The remainder of the book addresses both wave and tidal energy in turn within each topic specific chapter. Topics include: Resource Assessment, Device Design, Numerical Modelling, Environmental Impact, Consenting and Legal Aspects and Regional Activities from a Europe, North America and Asia-Pacific perspective.