Shading analysis V3 9 August 2026 · Ground-mounted PV
Shading Analysis Report
Near shading · row spacing, obstacles and topography · 9 Aug 2026
1 · Report summary
Total annual shading loss2.02%
Beam component1.15%
Diffuse component4.28%
Worst table3.82%
Tables measured187 units
Modules measured4,862 units
The total shading loss is the weighted sum of two components: beam (direct sunlight, measured table by table with ray tracing) and diffuse (the obstructed share of the sky). The diffuse coefficient in this run is 28%.
2 · Shading plan by table
Each table is coloured by ITS OWN total annual shading loss. The dashed blue line is the site boundary. Tables shading towards red are listed individually in the table below.
The numbers inside the tables are the table numbers. Entries such as "#3, #31" in §3 are read directly from this plan; those tables are also marked with a bold outline . The numbering matches the table order in the application exactly — the same numbers appear on the map.
3 · Most shaded tables
#
Table
Module
Annual shading
1
#53
26
3.82%
2
#95
26
3.66%
3
#54
26
3.66%
4
#52
26
3.65%
5
#96
26
3.54%
6
#50
26
3.50%
7
#51
26
3.49%
8
#97
26
3.39%
9
#49
26
3.29%
10
#94
26
3.25%
11
#68
26
3.23%
12
#48
26
3.22%
13
#69
26
3.21%
14
#79
26
3.17%
15
#65
26
3.15%
16
#66
26
3.14%
17
#67
26
3.11%
18
#80
26
3.11%
19
#98
26
3.10%
20
#81
26
3.10%
These tables are marked in the §2 plan with a bold outline ; the numbers match those on the plan exactly.
4 · Shading distribution by month and hour
Dark cells show the hours where shading concentrates — typically morning and evening in the winter months. The matrix is calibrated to the monthly loss from the canonical shading engine.
5 · Critical day profiles
Day
Daylight
Mean shading
Peak
Shade-free duration
21 December (winter solstice · worst)
08:00–16:40
19.74%
74.61% · 08:00
none
21 June (summer solstice · best)
05:40–19:40
0.32%
8.63% · 05:40
9 h 40 min
Annual average (12 representative days, one per month)
11 h 13 min
4.96%
74.51% · Ocak
6 h 25 min
The two days on the chart are the extremes: 21 December is the worst day of the year (lowest sun, longest shadows) and 21 June the best . Every other day falls between these two curves.
The annual average row is a measurement, not an estimate: the 15th of each month was measured separately at 30-minute steps and the 12 days averaged. The average does not sit exactly midway between the extremes because shading does not vary linearly with solar elevation — it accelerates towards winter. Peak column in this row is not an average but the highest instantaneous value across the 12 days , with the month it occurred in noted. Daylight and shade-free duration figures are daily averages.
Shade-free duration, no table is the uninterrupted period in which no table is shaded at all — not the period in which the plant average is zero. If a single table at the edge of the site is shaded, that minute does not count as shade-free. The measurement comes from the exact shaded-area ratio of the band engine that draws the colours on screen. Minutes when the sun is behind the collector plane (early morning and late evening in summer) are not counted as shading and are excluded from the average: with no beam on the plane, the shading ratio is undefined.
The dashed line is the measured annual shading loss (2.02%). It is not in the same units as the curves: the curves show the shaded AREA share at that minute, while the dashed line shows the irradiance-weighted loss over the whole year. The annual figure is lower because the hours with heavy shading are also the hours with the weakest irradiance.
6 · Row spacing sensitivity
This curve is analytical — it assumes infinitely long rows of equal height on level ground, and gives the shaded share of collector height at noon on 21 December. A real site is finite, sloping and has obstacles, so the curve is decision support, not a loss estimate. For the annual loss, the measured value in §1 applies.
7 · Electrical shading component
Linear (irradiance deficit)2.02%
Additional electrical loss2.03%
Electrical impact ratio100%
Linear loss is the shaded AREA share. Electrical loss arises when any module in a string is shaded and the series-connected cells limit the current: the shaded string collapses almost entirely until the bypass diodes engage. This second component applies to the beam component only .
8 · Method and limitations
Topic
Status
Beam shading
Ray tracing · sampled over the module area
Diffuse shading
Sky view factor restriction · share 28%
Instantaneous shading ratio
Band engine · exact shaded-area share
Shading from terrain features
Horizon map · relief 37.2 m · reach 500 m
Undrawn neighbouring structures
Not modelled — must be verified by a site visit
Snow cover / soiling shading
Not modelled
This report is a design output, not an independent energy yield assessment. For financing purposes it must be cross-checked against site measurements.
solarsimpro Ground-Mounted · canonical shading engine (beam ray tracing + diffuse sky model) · PR as defined in IEC 61724-1 · reference values from PVGIS v5.3 SARAH3. This report is intended for pre-feasibility purposes.
