[Radiance-general] Modeling PVs

[J. Alstan Jakubiec]

Dear Kyle,

We did some reflective modeling of a PV array causing glare at an airport  
where such models were very important. There was no possibility of a  
goniophotometer measurement, so we settled with using a portable  
spectrophotometer to get total reflectance and HDR photography to  
approximate the range of 'specular spread' depending on the angle of the  
sun. Its definitely not perfect, but worked well for the study. You can  
read more from the link at the front of this paragraph.

Best,
Alstan


On Sat, 07 Jun 2014 08:19:16 -0400, Lars O. Grobe <grobe at gmx.net> wrote:

> Dear Kyle,
>
> such PV panels are not easy to model. The reflected light that you are  
> probably interested in is mainly the light reflected from the  
> front-glazing. Glass >panes used for PV panels are typically structured  
> with pyramids, smooth structures and such. So without knowing the  
> reflective properties of the >frontglazing, modeling the panel will be  
> try and error. The built-in material models are probably not  
> approximating the reflective behaviour of the >panel at all.
>
> Cheers,
> Lars.
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