Hello,
I have few questions about setting GCR value in SAM.
1. Meaning of GCR
Is it correct that the GCR value becomes 0 when the PV system consists of only one array?
If not, does GCR mean the area of installation divided by the area of the panel? A/B
2. Project type: PVWatts and Detailed
It appears that the current version of SAM(2021.12) has no GCR setting if the roof type is set to fixed roof mount in the PVWatts project.
Is there a method to avoid setting the GCR value in the Detailed Project?
3. Is the GCR calculation in SAM for the Shading calculation or for the estimation of economical cost for the land use?
Thank you