Retaining the successful format of the first edition and building on its solid grounding in the principles of renewable energy resources, this second edition has been revised in line with the latest advances in the field to include new technologies and an assessment of their impact. Considering each technology in depth from both scientific and environmental perspectives, it covers solar energy, photovoltaic, wind, wave, tidal and hydro power, biofuels, geothermals and more, as well as featuring a new chapter on institutional factors, including economics. In addition, extra worked problems and case studies are also�provided to help readers put theory into practice. Reading and web-based material for further study is indicated after each chapter, making this text ideal, not only for practitioners, but also for students on multi-disciplinary masters degrees in science and engineering as well specialist modules in science and engineering first degrees.