Text adelphi research collaborates with the following organisations, which are key partners: Text International Centre for Renewable Energy Sources and Saving (CRES) National German Institute of Urban Affairs (Difu) National Ecologic Institute National Fraunhofer Institute for Systems and Innovation Research ISI (ISI) National ifeu – Institut für Energie- und Umweltforschung Heidelberg gGmbH National Institute for Ecological Economy Research (IÖW) National Institute for Futures Studies and Technology Assessment (IZT) National Institute for Biodiversity (ibn) International International Institute for Energy Conservation (IIEC) International International Institute for Global Environmental Studies (IGES) International International Institute for Sustainable Development (IISD) National The Oeko-Institut e.V. International The Energy and Resource Institute (TERI) International Woodrow Wilson International Center for Scholars National The Wuppertal Institute