About setting GCR

Okay I saw that option and it seems that after simulating, the GCR truly does not actually affect STC Deviations, thank your for your response. 

Kind Regards,

Daniel

Hi Paul,

Is this also true for bifacial modules? I was under the impression that GCR affects the estimated bifacial gain. 

What would be your recommendations for carports or flush mount rooftop arrays? 

Regards,
Justin

Hi Justin,

The GCR determines the spacing between rows of modules, and therefore affects the amount of sunlight that reaches the rear of bifacial modules. You should see the bifacial gain decrease as GCR increases.

Best regards,
Paul.