Fraunhofer Institute for Systems and Innovation Research (ISI) / Fraunhofer Gesellschaft e.V. Iddri (Institut du développement durable et des relations internationales) Institute for Applied Ecology DTU Management Engineering, Technical University of Denmark ENEA (Agenzia Nazionale per le Nuove Tecnologie, l’Energia e lo Sviluppo Economico Sostenibile) Fraunhofer Institute for Systems and Innovation Research ISI négaWatt Ecologic Institute gGmbH Energiaklub Climate Policy Institute and Applied Communications Association (Energiaklub) WiseEuropa – Foundation Warsaw Institute for Economic and European Studies