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AVG SHADE percentages, shading coefficients,...

Hello,

I find that the AVG SHADE column in the solar exposure (analysis tab) changes when I check the box direct only: the percentages become smaller! So I have two questions:
- Shouldn't the AVG SHADE stay the same, whether I'm considering the total incident radiation or only the direct?
- And, supposing it's not the same, shouldn't it at least be MORE shaded when I check the direct only box, since the diffuse radiation isn't there anymore?

Finally, I have yet another question: what about the shading coefficients I get with the sunpath calculation tool? How are they calculated? And why aren't they the same as either the direct or total AVG SHADE?
And what about when I choose "shading" with the solar analysis tool? Are the hourly percentages in the graph related to the AVG SHADE I get in the table below the graph?

Basically, I would like to know which one of all these shading percentages I should consider when I want to see if my shading devices are efficient in the summertime and in the wintertime...

Thank you for your help!

Regards,

Alice

solar exposur hourly values
Average shading versus shading coefficient and solar Factor


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