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UAPLDEES
Section of the table from the Solispec engine (median zone — Cherkasy)

JA Solar

Ground frame for 30 JA Solar JAM54D41-450/LB panels (3×10)

3 rows of 10 panels, 13.50 kW. The Solispec engine chose the profiles, the frame pitch and the footings for three snow and wind zones: Kherson has the lowest load of the regional centres, Cherkasy the median, Chernihiv the highest.

Power
13.50kW
Steel
533.3kg
Posts
12
Bolts
184
Materials
75,264₴
Yield
15,374kWh/year

Figures for the median zone (Cherkasy); all three zones are in the table below.

Ground frame designer

Open this frame in the builder

The builder opens with the JA Solar JAM54D41-450/LB panel and the 3 × 10 layout; site — Cherkasy. Change the site, the tilt or the profiles and the checks and estimate are recalculated.

Design the frameTilt and row spacing
  • No sign-up
  • Snow and wind check
  • Drawings and estimate

Three snow and wind zones

The same table designed for three regional centres: with the lowest, the median and the highest combined snow and wind load under DBN V.1.2-2:2006. For another site, open the frame in the builder.

ParameterLow loadKherson · S₀ 760 · W₀ 480Median loadCherkasy · S₀ 1,520 · W₀ 420High loadChernihiv · S₀ 1,720 · W₀ 410
PostsTube 60×60×2Tube 60×60×2Tube 60×60×2
RaftersC-channel 80×40×2C-channel 100×50×2.5C-channel 100×50×2.5
Purlins and bracesC-channel 41×41×2.5C-channel 60×40×2C-channel 60×40×2
Frames8 frames, pitch up to 1,600 mm6 frames, pitch up to 2,200 mm6 frames, pitch up to 2,200 mm
Posts161212
Footings (bored concrete)16 pcs, Ø400 mm, depth 1,100 mm12 pcs, Ø400 mm, depth 1,300 mm12 pcs, Ø350 mm, depth 1,500 mm
Concrete2.43 m³2.16 m³1.91 m³
Tilt30°30°30°
Panel bottom / post top600 / 2,550 mm600 / 2,524 mm600 / 2,524 mm
Panel field size11,660 × 3,539 mm11,660 × 3,553 mm11,660 × 3,553 mm
Row spacing between tables (no shade on 21 December)11,950 mm at noon · 13,430 mm ±2 h13,240 mm at noon · 15,290 mm ±2 h14,510 mm at noon · 17,250 mm ±2 h
Steel573.7 kg533.3 kg541.9 kg
BoltsM10 — 146, M8 — 66M10 — 118, M8 — 66M10 — 118, M8 — 66
Panel clampsend 12, middle 54end 12, middle 54end 12, middle 54
Materials74,308 UAH75,264 UAH74,529 UAH
With installation and delivery108,935 UAH110,024 UAH109,289 UAH
Per 1 kW8,069 UAH/kW8,150 UAH/kW8,095 UAH/kW
Yield1,266 kWh/kW · 17,097 kWh/year1,139 kWh/kW · 15,374 kWh/year1,043 kWh/kW · 14,082 kWh/year
Strength σ/fy57%81%87%
Deflection / (L/200)45%70%75%
Rafter strength76%72%77%
Post utilisation19%35%37%
Utilisation91%92%92%
Depth vs frost depthokokok
Checks overallwith a cautionwith a cautionwith a caution

Checks and cautions

Member utilisation as the engine computes it. Cautions are checks that pass, but with a small margin.

  • Embedment, mmThe footing resists wind uplift at above 80 % utilisation, or it is shallower than the frost depth. The soil resistance in the calculation is an estimate — check the soil on site.Kherson: Foundation Ø400 × 1 100: 0.138 m³ of concrete per post. Wind uplift on the front post ≈ 12.1 kN (with γ=1.5) vs ≈ 13.4 kN (concrete weight + soil friction, estimate) → 91%.Cherkasy: Foundation Ø400 × 1 300: 0.163 m³ of concrete per post. Wind uplift on the front post ≈ 14.6 kN (with γ=1.5) vs ≈ 15.8 kN (concrete weight + soil friction, estimate) → 92%.Chernihiv: Foundation Ø350 × 1 500: 0.144 m³ of concrete per post. Wind uplift on the front post ≈ 14.2 kN (with γ=1.5) vs ≈ 15.5 kN (concrete weight + soil friction, estimate) → 92%.
  • Max. frame pitch, mmThe purlins between the frames are used above 80 % (strength or deflection): the structure passes, but the margin is small. A shorter frame pitch or a deeper purlin gives more margin.Cherkasy: Frame spacing 2 200 mm, 6 frames. Purlin C-channel 60×40×2: strength 81%, deflection 70% of L/200 (snow on panel 977 Pa).Chernihiv: Frame spacing 2 200 mm, 6 frames. Purlin C-channel 60×40×2: strength 87%, deflection 75% of L/200 (snow on panel 1 106 Pa).

Bill of materials

The parts of one table for the median zone (Cherkasy): mark, name, profile, cut length, quantity.

MarkPartProfileLength, mmQuantity
П1Front postTube 60×60×22,4736
П2Rear postTube 60×60×23,8496
Кр1Rafter (inclined beam)C-channel 100×50×2.54,7466
Пк1Frame strutC-channel 60×40×22,0346
Пк2Front frame strutC-channel 60×40×22,6816
Х1Longitudinal brace (cross)C-channel 60×40×22,9084
Р1Purlin (rail)C-channel 60×40×26,0003
Р2Purlin (rail)C-channel 60×40×26,0003
Р3Purlin (rail)C-channel 60×40×25,6603
Р4Purlin (rail)C-channel 60×40×25,6603
—Bolt M10×80 / M10×25 set · frame and struts / purlins, braces, connectors——32
—Bolt M10×90 set · strut to post — through spacer inserts——6
—Bolt M10×120 set · purlin to rafter——36
—Bolt M10×130 set · post–rafter, strut to post — through spacer inserts——30
—Bolt M10×140 set · strut to rafter — through spacer inserts——6
—Bolt M10×150 set · brace to post — through spacer inserts——8
—End clamp 30 mm——12
—Mid clamp (30–40 mm)——54
—Bolt M8×50 + channel nut——66
—Concrete for 12 posts, Ø400×1300——2.16 m³

Profile cutting

35 bars of 6,000 mm, 176.3 m of profile in total.

  • Tube 60×60×29 bars
  • C-channel 100×50×2.56 bars
  • C-channel 60×40×220 bars

Estimated cost

The engine's materials estimate for the median zone (Cherkasy).

Materials
75,264₴
With installation and delivery
110,024₴
Per 1 kW
8,150UAH/kW

The engine's estimate has 25 lines; the full list is in the builder. Prices are the typical market prices built into the Solispec engine, as of 06.10.2026; no margin, no VAT.

Yield

Yield: 1,139 kWh per 1 kW a year, ≈ 15,374 kWh a year in total (median zone, Cherkasy; tilt 30°, the optimum for the latitude is 35.3°).

A preliminary calculation; a design needs an engineer's check. Snow and wind per DBN V.1.2-2:2006 for the regional centre; profiles, footings and estimate by the Solispec engine 0.12.0.

Other layouts of this panel

The 3×10 layout with other panels

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