1. SINTEF Energy Research,Department of Energy Systems,Trondheim,Norway
2. Department of Energy Technologies and Renewable Resources ENEA,Portici,Italy
3. Eindhoven University of Technology,Electrical Engineering Department,Eindhoven,The Netherlands
4. IPTC: Information Processing and Telecommunications Center UPM,Madrid,Spain
5. Grupo de Aplicación de Telecomunicaciones Visuales (GATV), Universidad Politécnica de Madrid,Madrid,Spain
6. Università Politecnica delle Marche,Department of Industrial Engineering and Mathematic Science,Ancona,Italy