Prof. Arthouros Zervos is the President of the Renewable Energy Policy Network for the 21st Century (REN21) since 2013. He is a Professor Emeritus at the National Technical University of Athens. He has been Chairman and CEO of the Public Power Corporation (PPC). He has more than 35 years of high level expertise in policy, science, research and technology across the renewable energy sector. He led key European and International renewable energy bodies and has acted as policy advisor to Governments, EU bodies and policy fora.