German society for solar energy section Berlin Brandenburg
Free and Hanseatic City of Hamburg – Ministry of Environment and Energy; General Directorate of Nature Conservation, Landscape Architecture & Energy Division; NGE1 Landscape Planning and Urban Green
Institute for Climate Protection, Energy and Mobility (IKEM)
Climate Alliance (CA)
International Journalists’ Programmes
The Nature Conservancy in Europe
100 percent renewable foundation
Forum Ökologisch-Soziale Marktwirtschaft e.V.
Bündnis Bürgerenergie e.V.
Energievision Frankenwald