Structure Shading Factor for Bifacial Modules being used with Fixed Tilt

[Shivya]

We need your guidance in ascertaining Structure Shading Factor for Bifacial Modules being used with Fixed Tilt racking system in Portrait Orientation. Arrangement shown in the pic below. 

 

This would have two mounting rails (pink color) running across the module width, thereby crossing all the internal strings of the module. Mounting rail and back side cells will have typical separation gap of 35-40mm (module frame thickness). 

 

Following are our specific queries:

1. What should be the Structure Shading Factor to be considered for above arrangement
2. What would be the correct interpretation of the mechanics covering half a cell or full cell in the above design

 

Your early response will be highly appreciated. We look forward to it. Do let us know if any additional information is required from our end.