Edited by François Lévêque, Professor of Law and Economics, École des Mines de Paris, France, Jean-Michel Glachant, Professor, Florence School of Regulation, EUI, Florence and Advisor, Technology University POLITO, Turin, Italy, Julián Barquín, Regulatory Affairs, ENDESA, Spain, Christian von Hirschhausen, Professor for Energy Economics and Public Sector Management, University of Technology Dresden and Research Director, DIW Berlin (German Institute for Economic Research), Germany, Franziska Holz, Senior Researcher, DIW Berlin (German Institute for Economic Research), Germany and William J. Nuttall, The Open University Engineering and Innovation MCT Faculty, UK