Since the very beginning of European integration, electricity has been within the legal sphere of the EU. Much of this is found within the binding European acts making up the framework of the Energy Packages. The established legal institutions have had a significant impact on the shape of the energy market in Europe. Nevertheless, the European energy market still seems to be developing, as demonstrated by the current lively discussion about the state of the Energy Union. Regulation in the European Electricity Sector delves into European energy law and reflects on some of the primary issues related to the public legal impact on the European energy sector. The book offers a brief explanation of the background operation of the electricity sector, as well as liberalisation within the area, and traces the evolution of the EU’s approach towards the issue of public law regulation within the electricity sector. Finally, the book presents an analysis of European and national laws, considering their interpretation, and explores the future of public law regulation. Aimed at giving the reader a deep insight into a nature of the state’s presence in the power sector, this book will be of great interest to students and scholars of EU energy law and policy.