1. 4ward Energy Research GmbH, Reininghausstraße 13a, 8020 Graz, Austria
2. Renewables Grid Initiative, Manfred-Von-Richthofen-Straße 4, 12101 Berlin, Germany
3. University of Deusto, 48007 Bilbao, Spain
4. E3-Modelling S.A., 70-72 Panormou Street, 11523 Athens, Greece