The legal framework of the electricity market has been restructured. This marks the beginning of a new era for the electricity industry. Specifically, the developments in Germany, the new legal foundations, the terminology of the electricity sector, the diverse applications of electricity, the economic aspects of electricity transmission and distribution, as well as electricity generation including district heating are addressed. Economic efficiency is the central theme of this book, which ultimately presents a detailed overview of the current electricity prices and outlines a perspective for future developments. This expanded and revised second edition encompasses the significant changes in the electricity sector since the introduction of the new legal foundations.