Constantine (Costas) Vournas is currently Professor Emeritus in the School of Electrical and Computer Engineering of NTUA. He has published close to 200 papers in International Journals and Conferences and has co-authored the book “Voltage Stability of Electric Power Systems”. His research interests are in the area of power system dynamics, stability and control and include voltage stability and security analysis, wind generator integration in power systems, novel control applications in the distribution and transmission grid, as well as the effect of deregulation on power system operation and control. He is Fellow of IEEE since 2005, Life Fellow since 2019, member of CIGRE, Editor of Electric Power System Research International Journal. He is the recipient of the IEEE/PES Prabha Kundur Award fro 2019. He was Chair of the IEEE/PES Power Tech Steering Committee (2007-2019), Region 8 Representative on the IEEE Power and Energy Society (PES) Governing Board (2011-2014), Chair of the IEEE/PES Power Systems Dynamic Performance Committee (2019-2020) and serves currently as Chair of the Energy WG of the IEEE European Public Policy Committee (EPPC).