PV System is not suited for the bifacial 2D model computation error

[Daksha Bopanna]

Hi! How do I fix this error? It shows up after I create my 3D construction scene and the click the Automatic Tilt for trackers option. It has worked in the past for every project but I am now getting this error of one. 

[Michele Oliosi]

Please read https://www.pvsyst.com/help/bifacial-conditions.htm

Your average tilt is likely too high for an accurate backside irradiance evaluation. You can change an advanced parameter (Main window > Settings > Edit advanced parmeters) to proceed anyway.
 

[Alireza]

On 3/20/2023 at 9:45 AM, Michele Oliosi said:

Please read https://www.pvsyst.com/help/bifacial-conditions.htm

Your average tilt is likely too high for an accurate backside irradiance evaluation. You can change an advanced parameter (Main window > Settings > Edit advanced parmeters) to proceed anyway.
 

Hi Michele, that was really informative. I followed the instruction and increased the threshold (Pitch RMS limit for bifacial 2D models )although I am still struggling with bifacial modeling. could you please advise if I need to amend something else? 

[Michele Oliosi]

You should actually change the following other parameter : "Max. tilt axis for the bifacial 2D model"
This seems to be the reason for your problem, rather than the pitch