FernandoAlbendea

But, even if we estimate/measure the POA Irradiance (also known as GTI or GlobalInc) and imported it to PVSyst it would: 1. Transform into GHI and DHI using the Hay Model. 2. Transform again into GTI assuming perfect -and the same- tracking for all the trackers. Therefore I see some limitations: a) if the POA is recorded on site, PVSyst won´t use that exact values of GTI and Diffuse for the simulation. b) If backtracking 3D is used on site, there is no way to simulate it, not even with POA data. c) Simulations are forced to use Hay model, which computes a lower PR. Please let me know if I am missing something on this regard, and if there is a way to solve this potential limitations. Thanks!

Good afternoon, Michelle. If I am not wrong, this means that it would be possible to include real tracking angle data (i.e. for a whole year) plus the GHI and DHI, and simulate with that meteo file?. If that's the case it would be very interesting to know how it could be carried out. Thanks!