This book elaborately discusses the various trends as well as applications of renewable energy. Rise in electricity demand and environmental issues have led to the rapid development of energy production from renewable resources. In the long run, application of renewable energy sources (RES) can assure ecologically sustainable energy supply. This book presents recent advancements and developments in renewable energy resources distributed over numerous topics. It can be a source of information and basis for discussion for readers from diverse backgrounds. The book includes contributions of renowned experts, scientists and researchers in this field and is aimed towards providing significant information about renewable energy sources and their applications.