Hi everyone, i have some questions that i dont seem to be able to awnser to:

I have set the analysis period equal in both the global horizontal radiation (ghr) and sun path component, from which i extract the sun vector data. The problem is there are a different number of ghr values and sun vectors: for instance for December, 289 global horizontal radiation values (other than 0) and 296 sun vectors. How come this difference? Is it limit situations when the sun has risen but no radiation still acountable?

And i also would like to know if the sun vectors are ordered the same way the ghr values are (excluding 0 values). I’m trying to combine the sun vectors to the corresponding ghr value, which will be the amplitude of the vectors. I want to visualize the ghr data with oriented lines towards the center point, whose length will be the ghr of that given hour.

And my last question: by knowing ghr daily, how can i calculate radiation on a non-horizontal surface?

I’ve attached the files i’m working on, sorry if they are a bit messy, the parameters i’m talking about are in the green panels.

PRT_Porto.085450_IWEC.epw (1.49 MB)

solaranglevilar2.gh (144 KB)

ruadovilar.3dm (1.38 MB)