Reddog1 wrote:
anutami wrote:
First option: will this cause a major issue with my solar panels casting a shadow

I am not sure that this would cause a major shadow, Wayne
Im kinda of in agreement- the pictures look as though taken at mid day, if sun travel left to right it would be pretty late in the day for shadowing to affect, or first couple of hours in morning--depending how your pointed.
If panel were on top of box would cast an even greater shadow, if tilted trying to capture late (or early) sun, probably put other panel in full shade. Other than material/construction of box, just the open clam shell exposed to much more than a breeze seems might be problematic. Id nix that idea.
Being aware of shadow potential and orientation would minimize, If you have option of parking just don't see a major issue. From what I can see would only be issue if parked with left side of truck south/ westerly-low winter sun.
All that said Ill offer option 6? Working with what you have is adding 3rd cross member. Rotating panels in place. It appears at least combined widths is greater than length of panels. Would give space between box and panel ends, minimize shadow and offer path between? But I cant really see if that would work, enough room from AC to end of rails.
Remounting on roof nose, other than more secure mounting, I cant. Our slope is greater and would cause more general loss than the shadow you might have depending how were parked.