The need of the hour is a global shift to alternative clean energy. This book encompasses wind energy, biofuels, solar energy, hybrid systems, energy management and efficacy, enhancement of renewable energy systems, etc. It also presents the technical and physical principles of better methods of using renewable energies. Important data and parameter sets are provided in this book for bigger possibilities of usage of renewable energies which allows an economic and environmental evaluation. Such an examination allows us to judge the boundaries and chances of the several options utilizing renewable energy sources. The aim of this book is to present useful insights into the modeling and improvement of distinct renewable systems and serve as a useful guide for students, researchers as well as people engaged in the field of renewable energy systems.