vabbaraju

Dear Dr. Mermoud, I have the same question as jbennett. I believe both these scenarios ("unlimited horizontal tracking"and "horizontal or tilted N-S axis" at 0 tilt) are same, but the results are slightly different due to near shading loss calculation. It would be great to get your guidance on which orientation is more appropriate for which scenarios. Thank you in advance!!

Hello, I was comparing two configurations of single axis PV trackers (with backtracking). First configuration is 1 module up (width of sensitive PV area = 2m) and second configuration is 2 modules up (width of sensitive PV area = 4m). Both configurations have same GCR and same total sensitive PV area. During backtracking hours, I am seeing a slight difference in "AngInc", "BeamInc", DifSInc" and "Alb Inc" between the two configurations. Why is "AngInc" dependent on table width, when GCR and total sensitive PV area remains same? Are we seeing differences in "BeamInc", DifSInc" and "Alb Inc" because of the difference in "AngInc", or is there another factor causing these differences? The second question is with near shading losses. It makes sense that there is no "ShdBLss" in either configurations. But, since GCR and sky viewing angle (slice) is same between the aforementioned configurations, why would "1 module up" have more "ShdDLss" and "ShdALss" losses compared to "2 module up" configuration? Thank you in advance for support!!