Joao Pedro Gouveia (CENSE – Center for Environmental and Sustainability Research, Department of Science and Environmental Engineering, Faculty of Science and Technology, Universidade Nova de Lisboa), Sofia Simoes (CENSE – Center for Environmental and Sustainability Research, Department of Science and Environmental Engineering, Faculty of Science and Technology, Universidade Nova de Lisboa), Adam Bábic (REGEA – North-West Croatia Regional Energy Agency), Monica Salvia (CNR-IMAA – Institute of Methodologies for Environmental Analysis – National Research Council of Italy), Norberto Fueyo (Fluid Mechanics Group - School of Engineering and Architecture, University of Zaragoza), Carmelina Cosmi (CNR-IMAA – Institute of Methodologies for Environmental Analysis – National Research Council of Italy), Kiki Papadopoulou (CRES – Centre for Renewable Energy Sources and Saving), Antonio Gomez (Fluid Mechanics Group - School of Engineering and Architecture, University of Zaragoza), Maria Herrando (Fluid Mechanics Group - School of Engineering and Architecture, University of Zaragoza), Elena Taxeri (CRES – Centre for Renewable Energy Sources and Saving), Filomena Pietrapertosa (CNR-IMAA – Institute of Methodologies for Environmental Analysis – National Research Council of Italy), Karlo Rajic (REGEA – North-West Croatia Regional Energy Agency), Monica Proto (CNR-IMAA – Institute of Methodologies for Environmental Analysis – National Research Council of Italy), Michele Giordano (SEL – Lucanian Energy Society), Giuliano Sarricchio (SEL – Lucanian Energy Society)