This book on sustainable energy discusses the various technologies and methods that have been made popular for energy-efficient consumption. Sustainable energy that promotes environmental sustainability is a very effective source of energy generation. Energy generation must concentrate on reducing pollution and other emissions to combat detrimental effects like greenhouse gas emissions and ozone layer depletion. Contents included in this text deal with coherent data that explains the effectiveness of green energy technologies and reduced emissions. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of sustainable energy. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study. This book is an essential guide for both academicians and those who wish to pursue this discipline further.