Hello,

My question pertains to deciding how to space modules when they are facing due East (or West). I have read the article on this site "Determining Module Inter-Row Spacing" https://www.greentechrenewables.com/support/installer/articles/determin…, but this seems to only apply to arrays facing due South. I have tried doing the trig myself, but I'm not sure that what I have is correct. It seems that D' would be unaffected by the array orientation difference, so D' would still be D'=h/tan(elevation of the sun). The orginal formula then has D=D'cos(azimuth), but this will provide distance going N-S when I'm interested in finding a distance going E-W. To find this modified D is it as simple as changing the orginal formula for D to D=D'sin(azimuth)? This seems to makes sense, but I'm not sure. I assume when shifting the orientation of the array due East or West I will have to adjust my solar window appropriestely which is probably a different topic in itself. Does anyone have any insight to this? Any help wold be apprecciated.

 

Thanks