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 Fraunhofer Institute for Systems and Innovation Research ISI DTU Management Engineering, Technical University of Denmark ENEA (Agenzia Nazionale per le Nuove Tecnologie, l’Energia e lo Sviluppo Economico Sostenibile) négaWatt Energiaklub Climate Policy Institute and Applied Communications Association (Energiaklub) Ecologic Institute gGmbH WiseEuropa – Foundation Warsaw Institute for Economic and European Studies