A concise yet technically authoritative overview of modern marine energy devices with the goal of sustainable electricity generation With 165 full- colour illustrations and photographs of devices at an advanced stage, the book provides inspiring case studies of today's most promising marine energy devices and developments, including full-scale grid-connected prototypes tested in sea conditions. It also covers the European Marine Energy Centre (EMEC) in Orkney, Scotland, where many of the devices are assessed. Topics discussed: * global resources - drawing energy from the World's waves and tides * history of wave and tidal stream systems * theoretical background to modern developments * conversion of marine energy into grid electricity * modern wave energy converters and tidal stream energy converters This book is aimed at a wide readership including professionals, policy makers and employees in the energy sector needing an introduction to marine energy. Its descriptive style and technical level will also