# In the same way a multiple linear regression

The AM was considered as an approximation of the real solar spectrum, and used to define its influence. Otherwise, the WSWS influence was not taken into account. The model proposed two different equations to predict the electric performance of the CPV modules, in function of the AM value:•When AM?2AM?2, it AZD2014 was confirmed that there was no influence of the AM on the PMPM delivered by the module, so the equation was expressed as follows:equation(5)PM=P∗DNI∗DNI(1-δ(TA-TA∗))where P∗P∗ is the value of the maximum power calibrated by the authors for DNI=850W/m2,TA:20°C,AM:1.5 and wind speed values lower than 1 m/s.