array length (coll. band width)

[rexpartner]

Hello All,

For fixed tilt layout we must define a Collector band width. Lets use an example of 2 modules in portrait at 25 degree tilt (each module is 2m length with no space in between). My question is using the total module length vs. tilt adjusted total module length  as the input for Collector band width. 

Using the total module length will give an input of 4m  and the tilt adjusted total module length will give an input of 3.63m (Cos25=Adjacent/4m).  The latter is correct from a top down view and i just want clarification on which input should be used for Collector band width.

When i mess with it,  i realize this calculation might be already considered but i want to be sure

[dtarin]

Use total module length. This is standard practice