The 4th project meeting of C-Track 50, realised in Athens, Greece, on the 18th of September, aimed at discussing the work progress for the first 18 months, in sight of the upcoming Interim Report, but also exchange on the next steps. To this end, the results of the national roundtables regarding the recommendations on national energy policy priorities for 2050 were presented. Moreover, a significant topic was the formulation of Regional/Local Energy and Climate Policy Plans for 2050 and project fiches, the identification of the local authorities’ needs towards this direction, as well as the challenges that partners encounter while working with them. The project meeting was realised back to back with a capacity building activity on long term sustainable energy planning and multi-level governance, where partners exchanged their experiences, especially after the discussions of the EU roundtable.