Does Far Shading Impact Near Shading Losses?

[Chae Han Lee]

Dear PVsyst Support Team,

I’ve encountered an unexpected behavior in the simulation results.

I applied different Far Sahding horizon profiles to the same project, while keeping the Near Shading scene exactly the same.
However, I noticed that the Near Shadings losses changed depending on the Far Shading configuration.

Could you please clarify:

1. Does the Far Shading (horizon line) influence the calculation of Near Shading losses?

2. If so, is this due to how diffuse or albedo components are modeled in the Near Shading algorithm?

3. Are there known changes in this behavior across different versions?

I would like to ensure that my simulations reflect shading losses accurately without unintended overlaps or misinterpretation.

Thank you for your support.

 

 

[Linda Thoren]

Hello,

In general, far shading affects the entire PV field uniformly — at any given moment, the sun is or is not visible on the field. As a result, it can potentially reduce the impact of near shading, since far shading may occur during times when near shading would otherwise be present, typically when the sun is low on the horizon.