Wind stow calculation

[Belen]

I would like to know how the wind stow is calculated in PVSyst and how losses are affected.

I presume the angle of incidence changes from the optimal value to the stow position, therefore, reducing irradiation and the Global Incidence Irradiation. 

Could you please confirm? 

[Linda Thoren]

Indeed, the hours where the wind exceeds the given threshold, the simulation will be done with the trackers in the defined wind stow position. You will not directly see any losses in the diagram though indeed it will result in a less optimized Global Incidence Irradiation. To properly evaluate the impact from the wind stow, you would have to run one simulation without activating this functionality and compare the two simulations.