Definitions

[gonecrawfishin]

Hi,

Does anyone know the exact definition of the following:

- Pitch (spacing plus height of the modules, or projection of such to the ground base on tilt?)

- Coll. band width (height of the modules or projection to the ground based on tilt?)

- Top/bottom inactive band

- Ground area occupatino ratio, or A(coll) and A(ground). It seems this is not equivalent to "ground cover ratio", an NREL term, correct? GCR is a comparison of horizontal projections, whereas GAOR seems to compare lengths at different angles?

Anyway, a graphic in the help section would be useful. I'm trying to guess based on the little graphic but it's hard to really tell.

-Jen

[dtarin]

Pitch: Post to post distance

Coll. band width: width of the modules regardless of angle, i.e. if two in portrait, coll. band width is length of module * 2 + spacing between modules

Inactive band: distance the underlying structure extends past the module area. Often times this is zero.

GAOR: collector width/pitch

[AHSAN ALI]

Is no of sheds affected the performance, what means by no of sheds, plz elaborate

[Linda Thoren]

Yes the number of sheds will have an impact of the performance, considering that the first and the last rows are not accounted for in the same way, since they will not experience the same shading patterns as the tables in the middle of the system. When there are many rows, this difference may be neglected. You can read more about the impact in the following help page:
https://www.pvsyst.com/help/project-design/bifacial-systems/bifacial-systems-nbofsheds.html?h=number