Advances in Energy Systems and Technology present the first volume of articles that provides a critical review of specific topics within the general field of energy. It discusses the technological issues in a broader systems context. It addresses the technical factors underlying energy developments. Some of the topics covered in the book are the introduction and development of wind power, the production of fuels from biomass, biomass conversion, aerodynamics, sources of biomass, and the technologies used to obtain energy from biomass. The analysis of the ethanol fermentation is covered. The process of pyrolysis is discussed. The text describes the anaerobic digestion of organic substrates. The alcohol production from sugar cane is presented. A chapter is devoted to the fuel production from pyrolysis of wastes. Another section focuses on the conversion of forest products to electric power and generation of geothermal energy. The book can provide useful information to scientists, engineers, students, and researchers.