The 3rd C-Track 50 roundtable with national Greek entities was realised in National Technical University of Athens, on March 19. Representatives of the Ministry of Environment and Energy, the Ministry of Infrastructure, Transport and Networks, the Region of Epirus, the Region of Thessaly, the Center for Renewable Sources and Energy Saving, the Technical Chamber of Greece, the Sustainable City Network, as well as representatives of the National Technical University of Athens and EPTA (as C-Track 50 partners) participated in the meeting.