1. DLR Institute of Networked Energy Systems,Energy Systems Technology,Oldenburg,Germany
2. DLR Institute of Networked Energy Systems,Energy Systems Analysis,Stuttgart,Germany
3. Delft University of Technology,Intelligent Electrical Power Grids,Delft,Netherlands
4. Nottingham Trent University,Department of Engineering,Nottingham,UK
5. EDP – Energias de Portugal,Centre for NEW Energy Technologies,Porto,Portugal
6. Lappeenranta University of Technology,LUT School of Energy Systems,Lappeenranta,Finland