The performance of PV module is strongly dependent on its operating temperature. Most of the energy absorbed by the module is converted to heat which is normally lost [1]. In common, PV module converts only 4–17% of the incoming solar radiation into electricity. Thus, more than 50% of the incident solar energy is converted to heat and accordingly the temperature of PV module is increased. The increase in module temperature in turn decreases the electrical yield and efficiency of the module with a permanent structural damage of the module due to a prolonged period of thermal stress (also known as thermal degradation of the module) [2].