This book discusses the generation of green energy, providing fundamental scientific information on the availability of sustainable biological resources. It addresses inter- and multidisciplinary topics, including policies and strategies for sustainable energy; the environment and advanced renewable energy technology; electricity generation through solid waste management; and direct electricity generation using microbial fuel cells. It examines the application of the principles and quantitative relationships that define the process – as an effective technique to teach applied aspects of biomass energy technology conversion.  In addition, it describes the latest commercialisation of microbial fuel cell technologies, bio-diesel production from microalgae, fermentation technology based on biobutanol from bacteria, and direct ethanol production from microalgae with attractive illustrations and models developed by corporate sectors.