Charalampos Kontoes, Theodora Papadopoulou, National Observatory of Athens, Greece; Stelios Kazadzis, PMOD World Radiation Center, Switzerland; George Koutalieris, ENORA INNOVATION, Greece; Christos Stathopoulos, Weather & Marine Engineering Technologies P.C., Greece; Fotini Salta, National Observatory of Athens, Greece; Platon Patlakas, Weather & Marine Engineering Technologies P.C., Greece; Kyriakoula Papachristopoulou, Ilias Fountoulakis, Nikolaos Bartsotas, National Observatory of Athens, Greece; Anagnostis Delkos, Symeon Symeonidis, ENORA INNOVATION, Greece; Vasileios Sinnis, Quest Energy, Greece