There has been an enormous increase in the demand for energy as a result of industrial development and population growth. Due to the depletion of fossil fuels at a rapid pace, harnessing the power of clean, alternative energy resources has become a necessity. Thus, the book aims to increase awareness among readers about the renewable energy resources and the technologies used to harness them. Written in a lucid and precise manner, the text matter is structured in the question answer format supported with numerous examples and illustrations. Besides discussing various renewable energy sources such as solar, wind, biogas, hydrogen, thermoelectric, tidal, geothermal, wave and thermal, the book also discusses energy management and environment and outlines Kyoto Protocol. The book caters to the needs of undergraduate engineering students of all branches