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720Wp
Trina Solar Review

TSM-NEG21C.20 720W

MonocrystallineBifacial
23.20%
Efficiency
231.8 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
629W from 720W
Power after 30 years
  • At 23.2% efficiency, this panel is on par with typical TOPCon 700-750W modules
  • At 231.8 W/m² power density, roof space requirements are typical for TOPCon 700-750W panels
  • Temperature coefficient of -0.29%/°C matches the TOPCon 700-750W median
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • #971 for efficiency, #1754 for temperature performance out of 11891 panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series Vertex N N-type TOPCon Bifacial Dual Glass Monocrystalline Module 6 variants
Efficiency Range 22.4% - 23.2%
Avg. Efficiency 22.78%
Technology TOPCon
Dimensions 2384 × 1303 mm
Show series description

The Vertex N series is a breakthrough solution based on N-type TOPCon technology, which significantly increases module efficiency beyond market standards. Thanks to the use of a bifacial dual glass construction, these panels absorb light from both sides, which, combined with the double glass, guarantees exceptional resistance to difficult weather conditions and extreme mechanical durability. Using monocrystalline cells in an advanced architecture allows for maximizing energy yields while reducing the mounting area, which optimizes the costs of the entire installation. A key advantage of this model is minimal light-induced degradation and an excellent temperature coefficient, ensuring the system works efficiently even on very sunny and hot days. This solution is dedicated primarily to large-scale photovoltaic farms and demanding commercial installations, where the priority is the highest return on investment rate. Vertex N effectively solves the problem of power drops over time, offering energy production stability for several decades. What sets them apart from competing products is an innovative approach to cell packing density and increased resistance to micro-cracks, making them some of the most reliable modules currently available on the Polish market.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)720 Wp
Module Efficiency23.20%
Voltage at Max Power (Vmpp)41.30 V
Current at Max Power (Impp)17.44 A
Open Circuit Voltage (Voc)49.40 V
Short Circuit Current (Isc)18.49 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 Density231.8 Wp/m²
Warranty
Product Warranty12 years
Performance Warranty30 years
End-of-Warranty Output87.4%
First Year Degradation1.00%
Annual Degradation0.40%/year
Key Specifications
23.20%
Efficiency
720 Wp
Power
-0.29%/°C
Temp Coeff
30 yrs
Warranty