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705Wp
Trina Solar TSM-NEG21C.20-705W
Trina Solar Review

TSM-NEG21C.20-705W

MonocrystallineBifacial
Datasheet
22.70%
Efficiency
227.0 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
616W from 705W
Power after 30 years
Smart Insights (data-driven)
  • At 22.7% efficiency, this panel is on par with typical TOPCon 700-750W modules
  • Power density of 226.9 W/m² matches the TOPCon 700-750W median
  • Temperature coefficient of -0.29%/°C matches the TOPCon 700-750W median
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
  • In the top 22% for efficiency among all TOPCon panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series Vertex N 27 variants
Efficiency Range 22.0% - 23.5%
Avg. Efficiency 22.84%
Technology TOPCon
Dimensions 2382 × 1134 mm
Show series description

Trina Solar Vertex N modules are based on N-type cells in i-TOPCon technology, designed to maximize gains throughout the entire lifecycle of the installation. In practice, this means better performance at high temperatures and significantly more stable energy production over the long term – especially where predictability and low operational costs are key.

A major highlight is the dual-glass construction, which enhances resistance to moisture, temperature fluctuations, and micro-cracks. Combined with high bifaciality (in two-sided variants), the Vertex N series enables a truly significant gain when modules operate above a light-colored background or on elevated structures.

Vertex N is an excellent choice for utility-scale PV farms and commercial installations, where lower BOS costs, easier logistics, and compatibility with trackers are crucial. It stands out from the competition thanks to its refined platform for large-size cells and a focus on long-term reliability, rather than short-term paper gains.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)705 Wp
Module Efficiency22.70%
Voltage at Max Power (Vmpp)40.70 V
Current at Max Power (Impp)17.33 A
Open Circuit Voltage (Voc)48.80 V
Short Circuit Current (Isc)18.36 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.290%/°C
Temp. Coeff. Voc-0.240%/°C
Temp. Coeff. Isc0.040%/°C
NOCT43°C
Cell Technology
Cell TypeMonocrystalline
Cell Count132
BifacialYes
Bifaciality Factor80%
Dimensions & Weight
Length2384 mm
Width1303 mm
Height33 mm
Weight38.3 kg
Area3.11 m²
Power Density227.0 Wp/m²
Warranty
Product Warranty12 years
Performance Warranty30 years
End-of-Warranty Output87.4%
First Year Degradation1.00%
Annual Degradation0.40%/year
Key Specifications
22.70%
Efficiency
705 Wp
Power
-0.29%/°C
Temp Coeff
30 yrs
Warranty
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