IAM profile from .PAN file

[Barbadori]

Hi there,

I'm trying to figure out what is the most accurate model to use when calculating IAM losses. I have .PAN files that have been verified by independent labs but the values are very different than the ones from ASHRAE and Fresnel (see below). When there is such a difference between PAN file and the other values, can I trust the PAN file even if it's been verified by third parties? Is there any way that I can check if the IAM on a PAN file is really "verified"?

 

 

Many thanks in advance.

[dtarin]

There should be a report which accompanies the PAN file that details the IAM calculation. If there is not, I personally wouldn't use it until there is such a report available.