Choosing between Far Shading or Near Shading

[neelesh92]

I'm trying to create a shade scene for a project that has highlands (mountains/hills) very close to the project site (~2 miles). I'm more inclined to think that this would create a far shading as this obstruction would create a shading effect on the whole system at a given instant.

PVsyst help describes to use far shadings when the distance of the obstruction is 10 times the system size, which is not true in my case.

Would you consider to model this as near shading or far shading/horizon?

Looking forward to get more insights on this question. Thanks in advance!

[André Mermoud]

The Rule of thumb remains valid: if your system size is less than around 0.2 miles, you can use the Far shadings option.

Now you can also use both options, and analyze the discrepancies.