The book provides a comprehensive account of the characteristics of energy transition covering the latest advancements, trends and practices around it. Moreover,it discusses the 4Ds in Energy transition; Decarbonization, Decreasing use, Decentralization and Digitalization also the important technical, economic, social and policy perspectives. It appropriately incorporates up-to-date data, case studies and comparative assessments. It focuses on and engineering dimensions of the energy transition covering topics like: energy conservation and management; renewable energy and sustainable energy future; hydrogen and fuel cells; electric mobility and sustainable transportation; distributed and off-grid generation; energy storage and batteries; smart energy solutions; smart meters, smart grids and smart cities; fossil fuel; nuclear power.