This volume focuses on a few renewable energy sources, viz. wind energy plus energy from water movement and natural temperature differences that in principle could provide enormous energy resources. Energy from wind has been a rapidly growing source of energy as wind turbines have grown in size and especially as wind turbines have moved offshore. Hydroelectric dams have continued to be used as energy sources particularly in developing countries. Other energy sources using water, including waves and tidal sources, are also discussed in this volume. Finally, the volume discusses differences between deep and surface ocean temperatures plus the extraction of energy from the earth’s extremely large energy resource of magma deep below the surface. These latter two energy resources in particular require further development and the current book describes the latest advances coupled with pointing possible paths forward. Key Features: o This book deals with a number of renewable energy resources including one of the most abundant namely Wind Energy. This is a field that is changing rapidly especially as wind turbines become larger and move offshore o The book also provides an important update on generating electrical energy from hydroelectric dams particularly in developing countries. Other "water" sources described include developments using the energy from waves and tides, including the flow in rivers o Finally the book describes extracting energy from the difference in temperature between the surface and deep ocean and between the earth’s surface and the magma contained deeper in the earth o These latter two energy resources in particular require further development and the current book describes the latest advances coupled with pointing possible paths forward o The authors have all worked extensively on the topics of their chapters and are able to provide an expert summary of the current status and likely future directions for particular renewable energy sources

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