shows the average operating module and ambient temperatures obtained for different levels of irradiance. Each bar represents the percentage of POA irradiance and the average temperature in bins of 50 W/m2. It can be seen that the occurrence of POA irradiance was over 96% for values under 950 W/m2 and only 4% occurrence for POA irradiance over 950 W/m2. In addition, the average maximum and minimum temperatures of the PV modules measured on the back surface are 65.8°C and 23.7°C, whilst the ambient temperatures are 38.0°C and 24.5°C, respectively, which occurred in February 2012