Hello,

I am working on a facade optimization project. I simulated the same
building with many different overhang depths and saw zero change in the
lighting energy use between the iterations. I understand that eQuest
daylighting calculations are not the best, but should the depth of the
overhang not make an impact on lighting energy if my space uses daylight
sensors? All other end uses show variation with the changing overhang
depth. Sensors are at 10' and 20' from the window with a minimum light
level of 25fc. Each sensor controls half of the space's artificial
lights, which is set to 0.55W/sf.

Please let me know if you have any insight on the effect of an overhang
on available daylight. Thank you.

Kim