Bias in Hourly Corrections

[shri]

Hello,

 

I work for a solar developer and operator. I've read some research regarding the transposition bias resulting from using the Perez model on a sub-hourly level. Given this, is using a correction through looking at the difference between hourly and sub hourly irradiance datasets that are simulated in PVsyst still an accurate approach? Or is the uncertainty resulting from using Perez on sub hourly data enough to make this approach invalid?

 

Thanks and appreciate the work that has already been done on this!