Commercial Solar Panel Sizes and Weights: 2026 Datasheet Table
Updated 23 October 2026 · SEO Dons Editorial
What size is a commercial solar panel in 2026?
There is no single size. The twelve datasheet rows below run from 1,762 × 1,134 mm to 2,465 × 1,303 mm, and one envelope, 2,382 × 1,134 × 30 mm, appears in the sheets of all six makers. The IEA PVPS report on 2026 market trends says commercial modules "commonly range from around 450 W for rooftop applications to above 700 W for large-format utility-scale products", with commercial products using dimensions "more compatible with roof layout, handling and installation requirements".
Power class is as printed. Kg per m² and W per m² are calculated from each row's size, weight and top power. The last column is the version, date or ID printed on the sheet. Models change, so read the sheet for the model in a quote.
| Module | Size, L × W × D (mm) | Weight (kg) | Power class (W) | kg per m² | W per m² | Sheet |
|---|---|---|---|---|---|---|
| DMEGC DMxxxG12RT-B48HBW | 1,762 × 1,134 × 30 | 24.0 | 460–485 | 12.0 | 243 | ID 20260915 |
| Jinko JKM495-520N-54HL4M | 1,961 × 1,134 × 30 | 27.0 | 495–520 | 12.1 | 234 | © 2025 |
| Aiko Comet 3N72 (glass, backsheet) | 2,382 × 1,134 × 30 | 28.2 | 655–690 | 10.4 | 255 | 202608 V1.1 |
| Jinko Tiger Neo 3.0 JKM650-670N-66QL6 | 2,382 × 1,134 × 30 | 32.5 | 650–670 | 12.0 | 248 | © 2026 |
| LONGi Hi-MO X10 LR8-66HVD | 2,382 × 1,134 × 30 | 32.5 | 640–670 | 12.0 | 248 | web page |
| Trina Vertex N TSM-NEG19RC.20 | 2,382 × 1,134 × 30 | 33.0 | 625–650 | 12.2 | 241 | TSM_EN_2025_D |
| DMEGC DMxxxG12RT-B66HSW | 2,382 × 1,134 × 30 | 32.3 | 640–665 | 12.0 | 246 | ID 20260915 |
| Canadian Solar CS6.3-66TB | 2,382 × 1,134 × 30 | 32.8 | 645–670 | 12.1 | 248 | v1.11 |
| Jinko JKM625-650N-78HL4 | 2,465 × 1,134 × 30 | 34.0 | 625–650 | 12.2 | 233 | © 2025 |
| Canadian Solar CS7N-MB-AG (PERC) | 2,384 × 1,303 × 33 | 37.8 | 640–670 | 12.2 | 216 | v2.8 |
| Trina Vertex N TSM-NEG21C.20 | 2,384 × 1,303 × 33 | 38.3 | 715–740 | 12.3 | 238 | TSM_EN_2025_C |
| Aiko Stellar 2N+78 | 2,465 × 1,303 × 33 | 39.8 | 765–800 | 12.4 | 249 | 202608 V1.1 |
What the power, efficiency and warranty lines on these sheets mean is covered on the commercial PV panels page.
How does panel format affect handling and access on a roof?
Weight runs from 24.0 kg to 39.8 kg and length from 1.76 m to 2.47 m. HSE says "the law does not set specific weight limits": employers must avoid hazardous manual handling so far as reasonably practicable, assess what cannot be avoided, and reduce the risk. For a panel 2.4 m long, size matters as much as weight, so lifting method, roof access and edge protection belong in the format decision.
Build changes weight inside one envelope. Aiko's Comet 3N72 (glass with a backsheet) is 28.2 kg and Jinko's Tiger Neo 3.0 (glass front and back) is 32.5 kg, both 2,382 × 1,134 × 30 mm. The IEA PVPS report puts double-glass bifacial products at approximately 70% of module structures in 2025. See glass-glass versus glass-backsheet and lightweight panels for weak roofs.
How many modules make 100 kWp, and what do they weigh?
The count is 100,000 W divided by module power, rounded up, so a quote's kWp should equal modules times the stated power. At the top of each class:
| Module (top of power class) | Modules | kWp as built | Module face (m²) | Weight (kg) |
|---|---|---|---|---|
| DMEGC B48HBW, 485 W | 207 | 100.39 | 414 | 4,968 |
| Aiko Comet 3N72, 690 W | 145 | 100.05 | 392 | 4,089 |
| Trina NEG21C.20, 740 W | 136 | 100.64 | 422 | 5,209 |
| Canadian Solar PERC, 670 W | 150 | 100.50 | 466 | 5,670 |
On these rows 100 kWp of modules is about 4.1 to 5.7 tonnes over 390 to 470 m² of module face, or 3.9 to 4.7 m² per kWp. That is module area only; row spacing, walkways, plant and edge setbacks add to the roof area a layout needs. The kWp, kW and kWh page explains why quotes use kWp.
How heavy is a panel per square metre, and is that the roof load?
Module weight works out at 10.4 to 12.4 kg per m² of module face, and eleven of the twelve rows sit between 12.0 and 12.4; the outlier is the glass-backsheet module.
That is glass, cells and frame only, not a roof loading figure. Mounting, ballast, cabling, wind and snow all change what the structure carries, and none is on a module datasheet. Whether a roof can carry an array is a question for a structural engineer. The MCS installation standard MIS 3002 (issue 6.0, 18 March 2026), which covers systems up to 50 kWp, says for ballasted flat roofs: "A qualified structural engineer shall be consulted to ensure the roof is able to withstand the imposed load from both the solar PV system and the proposed ballast." See the flat roof mounting page.
Most sheets state static test loads of 5,400 Pa front and 2,400 Pa rear; the two Trina sheets reviewed show none. Fraunhofer ISE notes that under IEC 61215 "a homogeneous mechanical load of at least 2400 Pa at 25 °C is one criteria to pass the certification". DMEGC separates test load from design load (3,600 Pa front, 1,600 Pa rear), which is the test figure divided by 1.5.
Does module size matter for the Class J edge limits?
Class J of the General Permitted Development Order covers solar PV on non-domestic buildings in England. In paragraph J.1, equipment on a pitched roof must not protrude more than 0.2 metres beyond the roof plane, on a flat roof its highest part must not be more than 1 metre above the highest part of the roof, and on any roof it must not be within 1 metre of the external edge. Whether permitted development applies is a planning question, covered on the planning permission page.
For example, take a hypothetical flat roof 20 m by 10 m. A 1 m setback leaves 18 m by 8 m. Laying modules flat in plan view, with no tilt or row spacing:
| Format and power | Long side along 18 m | Long side along 8 m |
|---|---|---|
| 1,762 × 1,134 mm, 485 W | 70 modules, 34.0 kWp | 60 modules, 29.1 kWp |
| 2,382 × 1,134 mm, 670 W | 49 modules, 32.8 kWp | 45 modules, 30.1 kWp |
| 2,384 × 1,303 mm, 740 W | 42 modules, 31.1 kWp | 39 modules, 28.9 kWp |
| 2,465 × 1,303 mm, 800 W | 42 modules, 33.6 kWp | 39 modules, 31.2 kWp |
Orientation moves the result by 2 to 5 kWp, and large formats leave strips: 8 m holds six 1,303 mm rows with 0.18 m spare, and 18 m holds seven 2,384 mm lengths with 1.3 m spare.
The height limit works the same way. A 2,382 mm module tilted at 15 degrees rises 0.62 m (2.382 × sin 15°), at 20 degrees 0.81 m and at 25 degrees 1.01 m, before any clearance under the frame. Module length therefore caps the tilt that stays inside the 1 m rule. An enquiry about a specific quote or roof can be sent through this site's form.
Sources
- IEA PVPS: Trends in Photovoltaic Applications 2026 (PDF), September 2026, checked 22 October 2026.
- Trina Solar: TSM-NEG19RC.20 datasheet (TSM_EN_2025_D); TSM-NEG21C.20 datasheet (TSM_EN_2025_C), checked 22 October 2026.
- JinkoSolar: 66QL6 datasheet, © 2026; 54HL4M datasheet, © 2025; 78HL4 datasheet, © 2025, checked 22 October 2026.
- LONGi: LR8-66HVD datasheet page, checked 22 October 2026.
- Canadian Solar: CS6.3-66TB datasheet v1.11; CS7N-MB-AG datasheet v2.8, checked 22 October 2026.
- DMEGC: B66HSW datasheet, ID 20260915; B48HBW datasheet, ID 20260915, checked 22 October 2026.
- Aiko: Comet 3N72 datasheet, 202608 V1.1; Comet 3N72 page; Stellar 2N+78 datasheet, 202608 V1.1; Stellar 2N+78 page, checked 22 October 2026.
- Health and Safety Executive: Manual handling at work, checked 22 October 2026.
- legislation.gov.uk: General Permitted Development Order 2015, Schedule 2, Part 14, checked 22 October 2026.
- MCS Charitable Foundation: MIS 3002 The Solar PV Standard (Installation), issue 6.0 (PDF), 18 March 2026, checked 22 October 2026.
- Fraunhofer ISE: Effects of inhomogeneous snow load on the mechanics of a PV module, EU PVSEC 2021 (PDF), checked 22 October 2026.
Common questions
Is there a standard size for commercial solar panels?
No. Several makers share a 2,382 × 1,134 × 30 mm envelope, but length runs from 1.76 m to 2.47 m, frame depth is 30 or 33 mm, and weight differs between glass-glass and glass-backsheet builds. A quote should give the full model code.
How many panels does a 50 kWp system need?
On the power classes in the table, between 63 and 104 modules: 50,000 W divided by 800 W is 62.5 and divided by 485 W is 103.1, each rounded up. A 670 W module needs 75, which makes 50.25 kWp.
Do bigger solar panels need a stronger roof?
Not because of the panel itself. Weight per square metre of module face is about the same across formats, so a larger module is heavier but covers more area. Roof capacity depends on mounting, ballast, wind and snow actions and the existing structure, which a structural engineer assesses.
Are 800 W panels used on commercial roofs?
Datasheets exist: the table includes a 765 to 800 W module at 2,465 × 1,303 mm and 39.8 kg. IEA PVPS says some commercial bifacial glass modules now exceed 800 W, though larger formats are more often ground-mounted. Suitability depends on handling, access, fixings and layout.