[RE-wrenches] S Facing Mods on E - W slopes

[Drake]

Hello Wrenches,

We have an installation where we are putting modules on the east and 
west slopes of a south facing roof. The roof slopes are 18 degrees. 
The tops and bottoms of the modules will follow the slope of the roof.

There will be 3 rows of modules. I have heard that the shading is 
different in this scenario, that the shadows will be triangular and 
perhaps longer. How can the shading be calculated with this 
arrangement?  Is there a rule of thumb to follow other than the 
normal of three times the height difference?

Thanks,

Drake

Drake Chamberlin
Athens Electric LLC
OH License 44810
CO License 3773
NABCEP Certified Solar PV
740-448-7328
<http://athens-electric.com/>http://athens-electric.com/


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