Ground frame for 10 DMEGC Infinity RT DM450M10RT-B54HBB panels (1×10)

1 row of 10 panels, 4.50 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: 4.50kW
Steel: 213.0kg
Posts: 12
Bolts: 88
Materials: 30,067₴
Yield: 5,125kWh/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 DMEGC Infinity RT DM450M10RT-B54HBB panel and the 1 × 10 layout; site — Cherkasy. Change the site, the tilt or the profiles and the checks and estimate are recalculated.

Design the frame Tilt 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.

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	Tube 60×60×2	Tube 60×60×2
Purlins and braces	C-channel 60×40×2	C-channel 60×40×2	C-channel 60×40×2
Frames	5 frames, pitch up to 2,710 mm	6 frames, pitch up to 2,200 mm	6 frames, pitch up to 2,200 mm
Posts	10	12	12
Footings (bored concrete)	10 pcs, Ø300 mm, depth 900 mm	12 pcs, Ø300 mm, depth 1,100 mm	12 pcs, Ø300 mm, depth 1,300 mm
Concrete	0.70 m³	1.03 m³	1.21 m³
Tilt	30°	30°	30°
Panel bottom / post top	600 / 1,134 mm	600 / 1,134 mm	600 / 1,134 mm
Panel field size	11,660 × 1,105 mm	11,660 × 1,105 mm	11,660 × 1,105 mm
Row spacing between tables (no shade on 21 December)	3,960 mm at noon · 4,450 mm ±2 h	4,380 mm at noon · 5,060 mm ±2 h	4,810 mm at noon · 5,710 mm ±2 h
Steel	189.6 kg	213.0 kg	221.6 kg
Bolts	M10 — 58, M8 — 22	M10 — 66, M8 — 22	M10 — 66, M8 — 22
Panel clamps	end 4, middle 18	end 4, middle 18	end 4, middle 18
Materials	26,579 UAH	30,067 UAH	32,263 UAH
With installation and delivery	39,264 UAH	42,747 UAH	44,943 UAH
Per 1 kW	8,725 UAH/kW	9,499 UAH/kW	9,987 UAH/kW
Yield	1,266 kWh/kW · 5,699 kWh/year	1,139 kWh/kW · 5,125 kWh/year	1,043 kWh/kW · 4,694 kWh/year
Strength σ/fy	84%	77%	83%
Deflection / (L/200)	90%	67%	72%
Rafter strength	7%	8%	9%
Post utilisation	5%	6%	6%
Utilisation	74%	43%	36%
Depth vs frost depth	ok	ok	ok
Checks overall	with a caution	passes	with a caution

Checks and cautions

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

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.Kherson: Frame spacing 2 710 mm, 5 frames. Purlin C-channel 60×40×2: strength 84%, deflection 90% of L/200 (snow on panel 489 Pa).Chernihiv: Frame spacing 2 200 mm, 6 frames. Purlin C-channel 60×40×2: strength 83%, deflection 72% 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.

Mark	Part	Profile	Length, mm	Quantity
П1	Front post	Tube 60×60×2	1,916	6
П2	Rear post	Tube 60×60×2	2,259	6
Кр1	Rafter (inclined beam)	Tube 60×60×2	1,182	6
Пк1	Frame strut	C-channel 60×40×2	822	6
Х1	Longitudinal brace (cross)	C-channel 60×40×2	2,292	4
Р1	Purlin (rail)	C-channel 60×40×2	6,000	1
Р2	Purlin (rail)	C-channel 60×40×2	6,000	1
Р3	Purlin (rail)	C-channel 60×40×2	5,660	1
Р4	Purlin (rail)	C-channel 60×40×2	5,660	1
—	Bolt M10×140 / M10×80 set · frame and struts / purlins, braces, connectors	—	—	52
—	Bolt M10×150 set · brace to post, strut to rafter — through spacer inserts	—	—	14
—	End clamp 30 mm	—	—	4
—	Mid clamp (30–40 mm)	—	—	18
—	Bolt M8×50 + channel nut	—	—	22
—	Concrete for 12 posts, Ø300×1100	—	—	1.03 m³

Profile cutting

13 bars of 6,000 mm, 69.6 m of profile in total.

Tube 60×60×26 bars
C-channel 60×40×27 bars

Estimated cost

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

Materials: 30,067₴
With installation and delivery: 42,747₴
Per 1 kW: 9,499UAH/kW

Prices are the typical market prices built into the Solispec engine, as of 06.10.2026; no margin, no VAT.

All 20 lines of the engine's estimate, with prices

Item	Quantity	Price, UAH	Sum, UAH
Tube 60×60×2, stock length 6 000 mm	6 bar	210	7,560
C-channel 60×40×2, stock length 6 000 mm	7 bar	230	9,660
C-channel connector (splice plate L 300)	2 pcs	90	180
Bolt M10×140 cl. 8.8 set — frame, struts	37 pcs	22	814
Bolt M10×80 cl. 8.8 set — purlins, braces, connectors	22 pcs	22	484
Bolt M10×150 cl. 8.8 set — strut to rafter, brace to post — through spacer inserts	14 pcs	27	378
End clamp 30 mm	4 pcs	35	140
Mid clamp (30–40 mm)	18 pcs	32	576
Bolt M8×50 A2 + spring channel nut M8	25 pcs	14	350
Post base anchor pin (M10 / rebar Ø12)	12 pcs	20	240
Borehole casing (roofing felt / PVC, 300 mm)	12 pcs	60	720
Crushed stone 20–40 for the bottom of the boreholes	0.08 m³	900	72
Earth electrode: 2 rods Ø16×1.5 m + strip 40×4	1 set	1,500	1,500
Wire PV-3 6 mm² green-yellow	29 m	35	1,015
Module earthing clip (under the clamp)	10 pcs	20	200
Cable clip, stainless	30 pcs	5	150
Zinc paint / cold galvanising spray 400 ml	1 pcs	350	350
Concrete M200 for posts	1.03 m³	3,800	3,914
Rebar Ø10 (4 bars per post)	63 m	28	1,764
Spacer inserts / packs — pieces of the same profile (from offcuts): 4 × 71 mm, 6 × 70 mm, 4 × 30 mm, 6 × 10 mm	20 pcs	0	0
Materials			30,067

Yield

Yield: 1,139 kWh per 1 kW a year, ≈ 5,125 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.