Alternative energy refers to a type of energy that is derived from sources other than fossil fuels. This energy emits little to no greenhouse gases such as carbon dioxide (CO2) and methane. The energy generated from alternative sources does not lead to the greenhouse effect that is responsible for climate change. There are various types of alternative energy sources including wind power, hydroelectricity, tidal power, solar power, biomass, nuclear power and geothermal power. The carbon footprint of alternative energy sources is far less as compared to coal, natural gas and other fossil fuels. Alternative energy sources can be adopted at a broad level if renewable technologies become more effective and necessary reforms are made in the electric utility sector. This book includes some of the vital pieces of works being conducted across the world, on various topics related to alternative energy. It elucidates new techniques and their applications in a multidisciplinary manner. This book is a vital tool for all researching or studying alternative energy sources as it gives incredible insights into emerging trends and concepts.