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Trina Solar Brand review

TSM-NEG19RC.20-640

640 Wp TOPCon Bifacial 80%
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 1,540 of 14,005
Compare panels Datasheet PDF
Power (Wp)
640
Strong · top 9%
Efficiency (%)
23.70
Strong · top 4%
Density (Wp/m²)
236.9
Strong · top 4%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
33.0
Typical · median 32.7 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Vertex N TSM-NEG19RC.20 is built around n-type cells and Trina Solar's patented i-TOPCon technology, pairing high unit power with low long-term degradation. The series relies on n-type TOPCon cells and a bifacial design, allowing the panel to capture extra energy from light reflected onto its rear side, which meaningfully boosts the energy yield of an installation, especially on bright roof surfaces or ground-mount systems. The 210 mm cell platform combined with a half-cut cell layout reduces resistive losses and improves resilience to partial shading. A key advantage is the low-voltage design, which enables longer strings without exceeding inverter voltage limits, cutting down the number of required installation components and lowering BoS costs. This translates directly into a reduced LCOE for the overall investment. The panel suits both large-scale solar farms and commercial projects where maximizing power output per available surface area matters, along with a predictable, long-term power warranty. It's a solid choice for investors seeking high performance while keeping operating costs low over many years of system operation.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.70% 22.80% Strong · top 4% 517
Power density 236.9 227.7 Strong · top 4% 521
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 51.6 53.1 Typical 4,940
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Price offers

1 from shops we track
Shop Country Price Per kWp Stock Offer updated Link to shop
livre.pt Portugal 127.99 € net 199.98 €/kWp In stock 19h ago Visit shop

Signals from the data

2 positive · 0 caution
Best for

Utility-scale, commercial and shaded-installations.

Strengths
23.70% module efficiency

Top 4% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 517th in the whole database.

236.9 watts per square metre

Top 4% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 521st in the whole database.

Notes from the database
  • 23.7% module efficiency - 0.9pp better than the TOPCon 600-650W median of 22.8%
  • At 236.9 W/m² power density, this panel generates 9.2 W/m² more per unit area than TOPCon 600-650W median (227.7 W/m²)
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
  • In the top 4% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 640 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.70 % Strong Segment median 22.80%
Vmpp · Impp 41.06 V · 15.60 A Operating point at max power
Voc · Isc 49.30 V · 16.51 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 33.0 kg Typical Typical · median 32.7 kg
Cells 132 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 559 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Trina Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 640 Wp appear here. The rest cover the whole series.

I-V Curves of PV Module (640W) I-V Curves of PV Module (640W) 640 W P-V Curves of PV Module (640W) P-V Curves of PV Module (640W) 640 W

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Trina Solar TSM-NEG19RC.20-640 640 W 23.70% -0.290 33.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +1.5 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +40 W, lighter, +1.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +35 W, lighter, +1.3 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.3 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +30 W, lighter, +1.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +30 W, lighter, +1.1 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.1 pp
TEB-NEGA6ND.48-420 (Silver Grey, RAL9018) 420 W 15.50% -0.290 33.0 kg -220 W, -8.2 pp, -5 yr warranty
TEB-NEGA6ND.48-425 (Silver Grey, RAL9018) 425 W 15.70% -0.290 33.0 kg -215 W, -8.0 pp, -5 yr warranty
TEB-NEGA6ND.48-430 (Silver Grey, RAL9018) 430 W 15.90% -0.290 33.0 kg -210 W, -7.8 pp, -5 yr warranty
TEB-NEGA6ND.48-545 (Green, RAL6001) 545 W 20.20% -0.290 33.0 kg -95 W, -3.5 pp, -5 yr warranty
TEB-NEGA6ND.48-550 (Green, RAL6001) 550 W 20.30% -0.290 33.0 kg -90 W, -3.4 pp, -5 yr warranty
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +60 W, cooler, +1.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +55 W, cooler, +1.2 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +30 W, cooler, +1.1 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output and efficiency of the Trina Vertex N TSM-NEG19RC.20 panel?
The highest-power version of this series reaches up to 650 Wp with module efficiency of up to 24.1%. This high unit power comes from the 210 mm platform, 132 half-cut cells, and n-type i-TOPCon technology. As a result, more energy can be generated from the same roof or ground area compared to classic PERC modules of similar size.
How do the n-type TOPCon cells in Vertex N differ from classic PERC cells?
N-type TOPCon cells have lower annual degradation (0.40% after the first year versus roughly 0.55% for PERC) and handle high temperatures better thanks to a -0.29%/°C power temperature coefficient. In practice this means higher and more stable energy yield over the long term, which lowers the levelized cost of energy (LCOE) compared to older technologies.
What does the bifacial design of the Vertex N TSM-NEG19RC.20 add, and is it worth the extra cost?
The bifacial construction lets the rear side of the module capture light reflected off the ground, roof, or snow, which can boost energy yield by several to well over ten percent depending on surface albedo. It's especially worth choosing for light-colored roofs, gravel ground-mount surfaces, or racking systems with high ground clearance.
What warranty comes with the Trina Vertex N TSM-NEG19RC.20 solar panels?
The manufacturer provides a 12-year product warranty and a 30-year linear power warranty, guaranteeing at least 87.4% of rated power retained after that period. The first year is covered by a 99% power output guarantee. This is standard for premium n-type modules and one of the longer coverage periods currently available on the PV market.
Is the Vertex N TSM-NEG19RC.20 suitable for large solar farms and long strings?
Yes, the low-voltage design of this series allows for longer strings without exceeding inverter voltage limits, reducing the number of BoS components needed, shortening cabling, and lowering installation costs. Combined with a unit power of up to 650 Wp, the panel is a popular choice for large ground-mount farms and commercial or industrial projects.
Does the Vertex N TSM-NEG19RC.20 perform well in high temperatures and strong sunlight?
Yes, thanks to its low power temperature coefficient of -0.29%/°C, the module loses less output as operating temperature rises compared to classic PERC panels (typically around -0.35%/°C). This is a significant advantage in hot climates and on large ground-mount farms, where panels reach high operating temperatures in summer, and stable power translates into predictable energy yield.
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