You can simulate non-convex convex zones, but the solar distribution algorithm should be Minimal Shadowing, Full Exterior or FullExteriorWithReflections. These models are accurate enough if you don't have interior windows that receive beam solar radiation.

You can simulate convex zones, but the solar distribution algorithm should be Minimal Shadowing, Full Exterior or FullExteriorWithReflections. These models are accurate enough if you don't have interior windows that receive beam solar radiation.