The sustainable energy transition of communities is one of the main targets within the European energy policies. Consistent energy planning is needed but conditioned by difficulties of city administrations to meet the necessary skills and have the necessary knowledge in order to lead the corresponding transition processes. R4E develops roadmapping capacities of 8 European partner cities (Eindhoven, Forlì, Istanbul, Newcastle, Murcia, Palermo, Sant Cugat and Tallinn) together with their local stakeholders, and provides them with the necessary knowledge about innovative energy solutions in the fields of smart buildings, smart mobility and smart urban spaces. A specific systemic approach to these future energy solutions has been developed, based on so-called Systemic Solutions Maps, in order to strengthen the capacities of the participating stakeholders in designing detailed roadmaps and developing together with the city authorities specific project portfolios.