Konstantinos Sfetsioris is a Senior Project Manager at the Hellenic Association for Energy Economics. He holds an MSc in Mechanical Engineering with a postgraduate degree in Energy Production and Management from NTUA. From 2011 to 2020, he worked as a Research Associate at the Centre for Research and Technology, Hellas / Chemical Processes and Energy Resources Institute (CERTH / IDEP). He has participated in numerous European and National Research Projects focused on reducing environmental footprint, the value of multilevel dialogue for energy transition, and the development of innovative applications for fuel cell systems on islands. Since 2019, he has been an Advisor to the Secretary General of Energy & Mineral Resources at the Ministry of Environment and Energy, actively contributing to the preparation of the legislative framework for e-mobility and the Committee for the Just Transition Plan in the lignite areas. During the period 2020-2021, he served as a Full Member of the Committee responsible for drafting the National Hydrogen Strategy in Greece.