As of October 1st 2021, Guido Bortoni is Chairman of the Board of Directors at CESI SpA. Mr. Bortoni, has been Chairman of ARERA – Italian Regulatory Authority for Energy Network and Environment – from 2011 to 2018. Previously, he was Chief Executive at the Energy Department of the Italian Government (2009-2011); Head of the Energy Markets Department at the then Italian Electricity and Gas Regulatory Authority (1998-2009); Engineer for Power Grid Studies at CESI/Enel (1987-1998), where he committed to long-term internships at several US utilities and at Électricité de France - études et Recherches (EDF), in Paris. From July 2019, he held the role of Senior Advisor - Regulatory at the Directorate-General Energy of the European Commission. He graduated in Electric Engineering at the Università degli Studi in Pavia and obtained a Masters’ Degree in Administration and Corporate Management at the Politecnico University in Milan.