sgf20

When I create the 2L trackers in PVcase with a central gap and import to PVsyst, the gap disappears. This results in an error message, since PVsyst incorrectly interprets the imported scene: "The area of the 3D fields is lower than the area of the modules defined in the subarrays." According to PVcase: PVsyst does not support the center gap. They take the total size of the frame from PVcase and divide by the size of the module to get the number of modules in the frame. Do you have any suggestions on how to properly run a 2L simulation with a central gap in PVsyst based on an imported scene from PVcase?

Is it possible to create a central gap for 2L trackers when importing a 3D scene?

There is a value associated with bifacial modules whose calculation I do not understand: 1.Global incident on ground (Loss diagram) How is this number calculated? 2. Global fraction on ground (Bifacial system > Unlimited Trackers 2D model) There is a monthly value here. Does this number represent the fraction of radiation from that month's Global horizontal radiation that does not fall on the front surface of the bifacial modules and instead reaches the ground? If so, I would expect that for each month: Global incident on ground = Global horizontal radiation * Global fraction on ground The value Global incident on ground would be the sum of all 12 months. This is not the case however, even when the values are renormalized to the ground area and not the collector area. In my example, this is what I attempted to calculate: https://imgur.com/a/DGAHEAn The value I get is 894.92 kWh/m^2 but the value in the loss diagram for Global incident on ground is 973 kWh/m^2. What is the proper way to arrive at Global incident on ground? Please provide some clarification on how these values are calculated. Thank you!