Solar Panel Dimensions Guide: LONGi, Trina, and Jinko Compared

By David Chen · March 2026 · 4 min read

As solar panel technology advances through 2026, dimensional standardization is converging around formats championed by the industry's largest manufacturers. Knowing the physical dimensions of panels from LONGi, Trina Solar, and Jinko Solar is essential for determining how many panels will fit on your roof.

LONGi Hi-MO X10: 2382x1134mm Gold Standard

LONGi's Hi-MO X10 series, unveiled at SNEC 2025, establishes the 2382 x 1134 mm form factor as the premium residential-commercial crossover standard. The flagship HIBC (Heterojunction Interdigitated Back Contact) variant reaches 700W+ with a module efficiency of 25.9%, yielding an exceptional power density of 259 W/m² [Source: LONGi 2025 SNEC Product Announcement, longi.com].

LONGi Hi-MO X10 Key Dimensions

• Dimensions: 2382 x 1134 x 30 mm
• Area: 2.70 m² (29.1 sq ft) per panel
• Weight: Approximately 28 kg (61.7 lbs)
• Power Range: 670W - 700W+ (HIBC variant)
• Efficiency: Up to 25.9%
• Power Density: 259 W/m²

Trina Solar Vertex S+: Compact 1762x1134mm

Trina Solar's Vertex S+ series uses a more compact 1762 x 1134 mm form factor based on 210 mm silicon wafers. At approximately 2.0 m² per panel, the Vertex S+ is ideal for roofs with irregular geometry or limited continuous south-facing area. Trina's n-type TOPCon cell technology delivers power ratings up to 450W with module efficiencies exceeding 22.5% [Source: Trina Solar Vertex S+ Product Datasheet, trinasolar.com].

Trina Vertex S+ Key Dimensions

• Dimensions: 1762 x 1134 x 30 mm
• Area: 2.00 m² (21.5 sq ft) per panel
• Weight: Approximately 21.5 kg (47.4 lbs)
• Power Range: 430W - 450W
• Efficiency: Up to 22.5%

Jinko Solar Tiger Neo: n-Type Versatility

Jinko's Tiger Neo series, built on n-type TOPCon technology, is offered in multiple form factors. Residential variants deliver power ratings from 440W to 620W. Jinko's bifacial variants capture reflected light from light-colored roof surfaces to boost total output by 5-15% [Source: Jinko Solar Tiger Neo Product Page, jinkosolar.com].

Calculating Roof Capacity

To determine how many panels fit on your roof:

1. Measure usable roof area: Identify south-facing roof planes, subtracting vents, chimneys, and shaded zones. Typical usable area: 200-500 sq ft.
2. Select panel area: LONGi Hi-MO X10 = 29.1 sq ft; Trina Vertex S+ = 21.5 sq ft.
3. Apply row spacing: Add 10-15% for access pathways, reducing effective capacity to 85-90%.
4. Multiply by wattage: 15 LONGi panels at 670W = 10.05 kW. 20 Trina panels at 450W = 9.0 kW.

Which Size for Your Home?

Homes with large, unobstructed rectangular roof planes benefit most from LONGi Hi-MO X10's higher power density — fewer panels, fewer racking points, and lower labor per watt. Homes with dormers or multiple roof facets may achieve better coverage with Trina Vertex S+ compact format. A professional drone-based site assessment is the definitive way to determine optimal panel selection.