I am thinking of adding a combined sunshade/solar array to the WSW side of my house. Normally the ideal azimuth is due true south (not due magnetic south) however due to severe shading this wall receives no direct sunlight until noon (13:00 in summer).
So, how do I calculate the ideal azimuth under these conditions? I’m assuming seasonal variation, in which case I prefer to optimise for winter.
I am planning a frame with front and back rails parallel to the house wall with panels mounted at an angle on it.