Jinko
Ground frame for 60 Jinko Tiger Neo JKM485N-60HL4-V panels (3×20)
3 rows of 20 panels, 29.10 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
- 29.10kW
- Steel
- 1,185.5kg
- Posts
- 28
- Bolts
- 404
- Materials
- 150,658₴
- Yield
- 33,139kWh/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 Jinko Tiger Neo JKM485N-60HL4-V panel and the 3 × 20 layout; site — Cherkasy. Change the site, the tilt or the profiles and the checks and estimate are recalculated.
- 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.
| Parameter | Low loadKherson · S₀ 760 · W₀ 480 | Median loadCherkasy · S₀ 1,520 · W₀ 420 | High loadChernihiv · S₀ 1,720 · W₀ 410 |
|---|---|---|---|
| Posts | Tube 60×60×2 | Tube 60×60×2 | Tube 60×60×2 |
| Rafters | Tube 60×60×2 | C-channel 100×50×2.5 | C-channel 100×50×2.5 |
| Purlins and braces | C-channel 41×41×2.5 | C-channel 41×41×2.5 | C-channel 60×40×2 |
| Frames | 17 frames, pitch up to 1,420 mm | 14 frames, pitch up to 1,740 mm | 11 frames, pitch up to 2,250 mm |
| Posts | 34 | 28 | 22 |
| Footings (bored concrete) | 34 pcs, Ø400 mm, depth 1,100 mm | 28 pcs, Ø350 mm, depth 1,300 mm | 22 pcs, Ø400 mm, depth 1,500 mm |
| Concrete | 5.17 m³ | 3.85 m³ | 4.56 m³ |
| Tilt | 30° | 30° | 30° |
| Panel bottom / post top | 600 / 2,720 mm | 600 / 2,703 mm | 600 / 2,686 mm |
| Panel field size | 23,200 × 3,814 mm | 23,200 × 3,824 mm | 23,200 × 3,834 mm |
| Row spacing between tables (no shade on 21 December) | 12,920 mm at noon · 14,520 mm ±2 h | 14,320 mm at noon · 16,530 mm ±2 h | 15,690 mm at noon · 18,650 mm ±2 h |
| Steel | 1,306.7 kg | 1,185.5 kg | 1,032.4 kg |
| Bolts | M10 — 320, M8 — 126 | M10 — 278, M8 — 126 | M10 — 236, M8 — 126 |
| Panel clamps | end 12, middle 114 | end 12, middle 114 | end 12, middle 114 |
| Materials | 156,547 UAH | 150,658 UAH | 141,994 UAH |
| With installation and delivery | 230,694 UAH | 223,830 UAH | 215,489 UAH |
| Per 1 kW | 7,928 UAH/kW | 7,692 UAH/kW | 7,405 UAH/kW |
| Yield | 1,266 kWh/kW · 36,853 kWh/year | 1,139 kWh/kW · 33,139 kWh/year | 1,043 kWh/kW · 30,355 kWh/year |
| Strength σ/fy | 49% | 99% | 99% |
| Deflection / (L/200) | 35% | 85% | 88% |
| Rafter strength | 76% | 67% | 92% |
| Post utilisation | 20% | 33% | 45% |
| Utilisation | 89% | 95% | 88% |
| Depth vs frost depth | ok | ok | ok |
| Checks overall | with a caution | with a caution | with 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 ≈ 11.9 kN (with γ=1.5) vs ≈ 13.4 kN (concrete weight + soil friction, estimate) → 89%.Cherkasy: Foundation Ø350 × 1 300: 0.125 m³ of concrete per post. Wind uplift on the front post ≈ 12.7 kN (with γ=1.5) vs ≈ 13.4 kN (concrete weight + soil friction, estimate) → 95%.Chernihiv: Foundation Ø400 × 1 500: 0.188 m³ of concrete per post. Wind uplift on the front post ≈ 16.1 kN (with γ=1.5) vs ≈ 18.2 kN (concrete weight + soil friction, estimate) → 88%.
- 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 1 740 mm, 14 frames. Purlin C-channel 41×41×2.5: strength 99%, deflection 85% of L/200 (snow on panel 977 Pa).Chernihiv: Frame spacing 2 250 mm, 11 frames. Purlin C-channel 60×40×2: strength 99%, deflection 88% of L/200 (snow on panel 1 106 Pa).
- Rafter profileThe rafter is used above 80 %, or the frame's posts stand far apart: the structure passes, but the margin is small.Chernihiv: Rafter C-channel 100×50×2.5: span between posts 2 968, cantilever 1 075 mm → strength 92%.
Bill of materials
The parts of one table for the median zone (Cherkasy): mark, name, profile, cut length, quantity.
| Mark | Part | Profile | Length, mm | Quantity |
|---|---|---|---|---|
| П1 | Front post | Tube 60×60×2 | 2,544 | 14 |
| П2 | Rear post | Tube 60×60×2 | 4,028 | 14 |
| Кр1 | Rafter (inclined beam) | C-channel 100×50×2.5 | 5,118 | 14 |
| Пк1 | Frame strut | C-channel 41×41×2.5 | 2,190 | 14 |
| Пк2 | Front frame strut | C-channel 41×41×2.5 | 2,887 | 14 |
| Х1 | Longitudinal brace (cross) | C-channel 41×41×2.5 | 2,703 | 4 |
| Р1 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р2 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р3 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р4 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р5 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р6 | Purlin (rail) | C-channel 41×41×2.5 | 6,000 | 3 |
| Р7 | Purlin (rail) | C-channel 41×41×2.5 | 5,200 | 3 |
| Р8 | Purlin (rail) | C-channel 41×41×2.5 | 5,200 | 3 |
| — | Bolt M10×80 / M10×25 set · frame and struts / purlins, braces, connectors | — | — | 86 |
| — | Bolt M10×65 set · brace crossing | — | — | 2 |
| — | Bolt M10×90 set · strut to post — through spacer inserts | — | — | 14 |
| — | Bolt M10×110 set · brace to post — through spacer inserts | — | — | 4 |
| — | Bolt M10×120 set · purlin to rafter | — | — | 84 |
| — | Bolt M10×130 set · post–rafter, strut to post — through spacer inserts | — | — | 70 |
| — | Bolt M10×140 set · strut to rafter — through spacer inserts | — | — | 14 |
| — | Bolt M10×160 set · brace to post — through spacer inserts | — | — | 4 |
| — | End clamp 30 mm | — | — | 12 |
| — | Mid clamp (30–40 mm) | — | — | 114 |
| — | Bolt M8×50 + channel nut | — | — | 126 |
| — | Concrete for 28 posts, Ø350×1300 | — | — | 3.85 m³ |
Profile cutting
75 bars of 6,000 mm, 384.8 m of profile in total.
- Tube 60×60×221 bars
- C-channel 100×50×2.514 bars
- C-channel 41×41×2.540 bars
Estimated cost
The engine's materials estimate for the median zone (Cherkasy).
- Materials
- 150,658₴
- With installation and delivery
- 223,830₴
- Per 1 kW
- 7,692UAH/kW
Prices are the typical market prices built into the Solispec engine, as of 06.10.2026; no margin, no VAT.
All 27 lines of the engine's estimate, with prices
| Item | Quantity | Price, UAH | Sum, UAH |
|---|---|---|---|
| Tube 60×60×2, stock length 6 000 mm | 21 bar | 210 | 26,460 |
| C-channel 100×50×2.5, stock length 6 000 mm | 14 bar | 380 | 31,920 |
| C-channel 41×41×2.5, stock length 6 000 mm | 40 bar | 200 | 48,000 |
| C-channel connector (splice plate L 300) | 18 pcs | 90 | 1,620 |
| Bolt M10×80 cl. 8.8 set — frame, struts | 14 pcs | 22 | 308 |
| Bolt M10×25 cl. 8.8 set — purlins, braces, connectors | 72 pcs | 22 | 1,584 |
| Bolt M10×65 cl. 8.8 set — brace crossing | 2 pcs | 27 | 54 |
| Bolt M10×90 cl. 8.8 set — strut to post — through spacer inserts | 14 pcs | 27 | 378 |
| Bolt M10×110 cl. 8.8 set — brace to post — through spacer inserts | 4 pcs | 27 | 108 |
| Bolt M10×120 cl. 8.8 set — purlin to rafter | 112 pcs | 27 | 3,024 |
| Bolt M10×130 cl. 8.8 set — post–rafter, strut to post — through spacer inserts | 70 pcs | 27 | 1,890 |
| Bolt M10×140 cl. 8.8 set — strut to rafter — through spacer inserts | 14 pcs | 27 | 378 |
| Bolt M10×160 cl. 8.8 set — brace to post — through spacer inserts | 4 pcs | 27 | 108 |
| End clamp 30 mm | 12 pcs | 35 | 420 |
| Mid clamp (30–40 mm) | 114 pcs | 32 | 3,648 |
| Bolt M8×50 A2 + spring channel nut M8 | 139 pcs | 14 | 1,946 |
| Post base anchor pin (M10 / rebar Ø12) | 28 pcs | 20 | 560 |
| Borehole casing (roofing felt / PVC, 300 mm) | 28 pcs | 60 | 1,680 |
| Crushed stone 20–40 for the bottom of the boreholes | 0.27 m³ | 900 | 243 |
| Earth electrode: 2 rods Ø16×1.5 m + strip 40×4 | 1 set | 1,500 | 1,500 |
| Wire PV-3 6 mm² green-yellow | 57 m | 35 | 1,995 |
| Module earthing clip (under the clamp) | 60 pcs | 20 | 1,200 |
| Cable clip, stainless | 180 pcs | 5 | 900 |
| Zinc paint / cold galvanising spray 400 ml | 4 pcs | 350 | 1,400 |
| Concrete M200 for posts | 3.85 m³ | 3,800 | 14,630 |
| Rebar Ø10 (4 bars per post) | 168 m | 28 | 4,704 |
| Spacer inserts / packs — pieces of the same profile (from offcuts): 4 × 71 mm, 14 × 70 mm, 14 × 50 mm, 4 × 30 mm, 14 × 10 mm | 50 pcs | 0 | 0 |
| Materials | 150,658 | ||
Yield
Yield: 1,139 kWh per 1 kW a year, ≈ 33,139 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.