Hungarian Solar Energy Association
Centre for Renewable Energy Sources and Saving (CRES)
nexus Institute for Cooperation Management and Interdisciplinary Research
Network of Sustainable Greek Islands (DAFNI)
National Technical University of Athens (NTUA)
University of Montenegro
The International Centre for Sustainable Development of Energy, Water and Environment Systems (SDEWES Centre)
Energy Agency Styria
Regional Development Center Koper
WWF Bulgaria