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