1. Energy Economics Group, Institute of Energy Systems and Electrical Drives TU Wien Gusshausstraße 25‐29/370‐3 Vienna Vienna 1040 Austria
2. Institute for Renewable Energy Eurac Research Via A.Volta 13/A Bolzano 39100 Italy
3. Departamento Energías Renovables Instituto Tecnológico de Canarias s/n Playa de Pozo Izquierdo Gran Canaria, 35119, Santa Lucía de Tirajana Spain