PRIME aims at fostering a participatory approach for private investments from citizens and local stakeholders in sustainable energy measures by Energy Performance Contracting (EPC). Such a participatory approach has already been used e.g. for wind power, PV and biomass plants in Germany, Austria, Denmark or Belgium or as "Solar & Save" in some German schools. Consequently "PRIME projects" will be local RUE and/or RES projects for which private capital from citizens and local stakeholders will be mobilised for the investments via such a participatory approach. The focus will be on integrated RUE&RES investments in public buildings.