We previously tested the solar collector’s thermal behaviour tovalidate the thermal model [18] and attempt to improve perform-ances [19] by trialling certain parameter adjustments (Fig. 5).Briefly, the trials were led on a site at our laboratory in the Gulfof Ajaccio (latitude: 41◦55N; longitude: 8◦55E) at an altitude of70 m asl and about 200 m from the seafront. This trial setup enabledus to operate closer to European Standard EN 12975-1 [20], withfour rows of four modules (2.24 m2) connected in series and fixedon a solar tracker for better control of solar intensity and direction.The solar modules are connected to a thermal loop that regulatesthe