Contents
1. How We Help You Calculate the PV Layout
2. Executive Summary
3. Roof Face Breakdown
4. Result & Key Findings
5. Assumptions
Appendix A. Reference Dimensions
Executive SummaryKey figures at a glance
Total modules fitted Total capacity Usable sun-facing area Module baseline
≈ 20 panels ≈ 12.0 kWp ≈ 134 m² 600 W
Based on your roof plan, we digitized the L-shaped hip roof, identified all sun-facing slopes, and fitted the maximum number of modules under your layout rule: portrait orientation only, joined side by side in a single row — never stacked one above another. With standard 600 W modules (2.384 m × 1.134 m), the roof accommodates approximately 20 modules, or about 12.0 kWp.
1. How We Help You Calculate the PV Layout
1.Roof analysis — We digitize your roof plan, identify all sun-facing slopes (shown in light blue on your drawing), and convert the plan dimensions into true sloped surface areas using the actual roof pitch (3.61 m rise over a 4.0–4.5 m run, ≈ 39°–42°).
2.Layout rules — Per your requirement, all modules are installed in portrait orientation only, joined side by side in a single row. Panels are never stacked one above another, so every array is exactly one panel deep.
Quantity & yield estimate — We then fit the maximum number of modules onto each slope, keeping a ~0.3 m safety clearance at roof edges
2. Roof Face Breakdown
# Roof face (sun-facing) Slope dimensions Surface area Panels fitted
1 Main south slope (left wing) 9.5 m ridge / 8.0 m eave × 5.39 m deep ≈ 47 m² 6
2 South-west hip end (left wing) 8.0 m base, 5.39 m slant height ≈ 22 m² 3
3 Large west slope (right wing) 9.0 m long × 5.77 m deep ≈ 39 m² 7
4 South hip end (right wing) 9.0 m base, 5.77 m slant height ≈ 26 m² 4
Total usable sun-facing area ≈ 134 m² ≈ 20 panels
3. Result & Key Findings
Total capacity: ≈ 20 modules ≈ 12.0 kWp (based on standard 600 W modules, 2.384 m × 1.134 m).
Because arrays are limited to a single row (no vertical stacking), roughly half of each slope's depth remains unused — the count is driven by the eave/ridge length of each face, not by total roof area.
On the two triangular hip ends, the row narrows with the roof: the usable width at the top of a 2.384 m-tall row is about 4.5 m and 5.3 m respectively, which is why the smaller hip takes only 3 panels and the larger one 4 panels.
Note: If two-row (stacked) arrays were permitted, capacity could roughly double to 40+ modules. We are happy to re-run the numbers with a different module size or with the stacking rule relaxed. Should you prefer to keep the 4th panel on the south-west hip, a shorter 550 W module can be mixed in on that face only.
4. Assumptions
1.Module: standard 600 W mono module, 2.384 m (L) × 1.134 m (W), installed portrait.
2.Portrait only; modules joined side by side; no top-to-bottom stacking.
3.~0.3 m edge clearance; no dormers, skylights or obstacles on the drawing.
4.Final count to be confirmed after module selection and on-site measurement.
