The use of wind energy continues to experience rapid technological advancements. Intensive research efforts at scientific institutions and in industry have resulted in systems that are now reliable high-tech products. An overview of these developments is provided in the completely revised BINE specialist book. The focus is on technologies, concepts, and market development in the wind industry. Other topics include grid integration, economic viability, current research perspectives, as well as environmental impact and repowering. Planners, investors, and students will gain an overview of the state and development of the technology, its economic feasibility, and the legal framework.