This encyclopaedic book provides a comprehensive review of current technology for all ocean energies. It opens with an analysis of ocean thermal energy conversion (OTEC), with and without the use of an intermediate fluid. This historical and economic background is reviewed, and the geographical areas in which this energy could be utilized are pinpointed. The production of hydrogen as a side product, and environmental consequences of OTEC plants are looked at. Separate chapters cover other ocean energy sources, including marine winds, ocean tides and tidal power plant projects in China, Australia, the UK and Korea. An invaluable reference for energy economists, engineers, geologists, oceanographers and environmental engineers.