Another update for 9972

Another doc mod request.  Fixed as per suggestion from @mjwitte

doc/input-output-reference/src/overview/group-electric-load-center-generator.tex

@@ -4451,7 +4451,7 @@ \subsubsection{Inputs}\label{inputs-20-000}
 
 \paragraph{Field: Surface Name}\label{field-surface-name-001}
 
-This field is the name of a surface that defines the location and geometry of the array.
+This field is the name of a surface that defines the location and geometry of the array. Array tilt, azimuth, and gross area are taken from the referenced building surface or shading surface. This will define the orientation of the solar panel for the detailed models and also the area of the solar panel for the simple model.
 
 \paragraph{Field: Photovoltaic Performance Object Type}\label{field-photovoltaic-performance-object-type}