MAKING-CITY, the new large-scale demonstration project funded by Horizon 2020 EU’s research and innovation programme, holds its kick-off meeting on 13th-14th December in Valladolid, Spain. Gathering 34 partners coming from 9 countries, this 60-month H2020 project with a budget of 20 million euros aims to address and demonstrate the urban energy system transformation towards low carbon cities following the Positive Energy District (PED) concept. Coordinated by CARTIF Technology Centre, the project involves 2 “lighthouse cities”, Groningen and Oulu, for the demonstration of their objectives. Both cities have been chosen due to their current work and commitment on energy transition, and the work with them will help others, our 6 “follower cities”: León (Spain), Bassano del Grappa (Italy), Kadiköy (Turkey), Poprad (Slovakia), Vidin (Bulgaria) and Lublin (Poland), to replicate the solutions proposed. The consortium is completed by representing key stakeholders within the value chain of smart cities: leading European research/academic institutions, large industries, SMEs, public bodies and specific exploitation expert partners.