The rising levels of pollution and depleting resources have given rise to the concept of clean energy. The modern times demand for a massive amount of energy to power the industries. This book delves into the varied sources of clean energy along with discussing their availability and effects on the environment. It discusses the tools and techniques required to harness clean energy and how it can be employed as a power source. Some interesting concepts such as smart grids, electric vehicles, power system planning and protection are discussed in detail. This book aims to provide the readers with an advanced understanding of this rapidly expanding field. It encompasses researches from all parts of the world to provide the readers with a global outlook on the importance of clean energy and the existing production methods and modules. Researchers, scholars and students will find this book beneficial.