Solar PV Layout, Piers & Excel BOM

A coordinated rooftop solar drafting sample on a fictional site, combining the roof layout, concrete pier and rebar details, 3D presentation views and a formula-driven Excel bill of materials. The sample contains 184 modules at 550 Wp each (101.2 kWp) and 196 piers. The quantity schedule carries 13.80 m3 of concrete and 598.5 kg of T8 reinforcement from the drawing inputs. The shortened final array row leaves clearance at the stair headhouse. These five English presentation sheets show how CAD drawings, 3D visuals and spreadsheet quantities fit together. The underlying sample set includes PDF and editable CAD sheets plus an Excel Inputs sheet and live formulas. Self-initiated portfolio sample, not a built installation or a client commission. Site-specific structural design and roof capacity require project engineering review.