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Trina Solar TSM-NEG19R.20-620
Trina Solar Brand review

TSM-NEG19R.20-620

620 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 2,502 of 14,129
Compare panels Datasheet PDF
Power (Wp)
620
Typical for its class
Efficiency (%)
23.00
Typical · median 22.80%
Density (Wp/m²)
229.5
Typical · median 227.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
30.0
Strong · 2.8 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

Trina Solar's Vertex N (TSM-NEG19R.20) series is designed for maximum energy return in real-world operating conditions, especially where stable production and predictable return on investment matter most. The key advantage lies in the N-type cells in TOPCon technology, which maintain their parameters better over time and are less sensitive to typical module aging mechanisms. In practice, this means a more consistent energy yield year after year and lower risk of disappointing results from the installation.

The adopted bifacial glass-glass construction allows for utilizing reflected light, helping to increase energy output without expanding the surface area. Furthermore, the low temperature sensitivity ensures efficient operation on scorching days, unlike many standard panels that lose part of their performance. Vertex N also features solutions enhancing performance under scattered light, making it ideal for less-than-ideal exposure conditions.

This is an excellent choice for commercial installations and PV farms, where higher yield from the same surface area, long-term durability, and controlled energy costs over a long horizon are crucial.

Ranking

1,085 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.00% 22.80% Typical 1,970
Power density 229.5 227.7 Typical 2,243
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 48.4 53.1 Strong · top 16% 2,248
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 0 caution
Best for

Commercial, utility-scale and hot-climate.

Strengths
48.4 kg per kWp

Top 16% of the TOPCon 600-650 W segment, against a median of 53.1.

Notes from the database
  • Efficiency of 23.0% matches the TOPCon 600-650W median
  • At 229.5 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • 30.0 kg weight - 2.8 kg lighter than TOPCon 600-650W median (32.8 kg), reducing installation effort
  • #1970 for efficiency, #2220 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 620 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.00 % Typical Segment median 22.80%
Vmpp · Impp 41.40 V · 14.99 A Operating point at max power
Voc · Isc 49.60 V · 15.91 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 30.0 kg Strong Strong · 2.8 kg below median
Cells 132 · TOPCon Monocrystalline
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 542 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 620 Wp appear here. The rest cover the whole series.

Performance Warranty Performance Warranty Whole series

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
-

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
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Trina Solar TSM-NEG19R.20-620 620 W 23.00% -0.290 30.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +30 W, lighter, +2.2 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +2.0 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +50 W, cooler, +1.8 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +50 W, cooler, +1.8 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.8 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +50 W, cooler, +1.8 pp
TEB-NEGA6ND.48-420 (Silver Grey, RAL9018) 420 W 15.50% -0.290 33.0 kg -200 W, -7.5 pp, -5 yr warranty
TEB-NEGA6ND.48-425 (Silver Grey, RAL9018) 425 W 15.70% -0.290 33.0 kg -195 W, -7.3 pp, -5 yr warranty
TEB-NEGA6ND.48-430 (Silver Grey, RAL9018) 430 W 15.90% -0.290 33.0 kg -190 W, -7.1 pp, -5 yr warranty
TEB-NEGA6ND.48-545 (Green, RAL6001) 545 W 20.20% -0.290 33.0 kg -75 W, -2.8 pp, -5 yr warranty
TEB-NEGA6ND.48-550 (Green, RAL6001) 550 W 20.30% -0.290 33.0 kg -70 W, -2.7 pp, -5 yr warranty
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +60 W, cooler, +2.2 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +55 W, cooler, +2.0 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +80 W, heavier, +2.0 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +55 W, cooler, +2.0 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +75 W, heavier, +1.9 pp

Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here

About the Vertex N (TSM-NEG19R.20) series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is TOPCon technology used in Trina Vertex N panels and how does it differ from PERC?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology where an additional tunnel oxide layer reduces carrier recombination and boosts efficiency compared to older P-type PERC cells. N-type cells degrade more slowly, have a lower LID/LeTID coefficient, and retain power better over the years, resulting in more stable and predictable energy yield throughout the warranty period.
What is the maximum power output and efficiency of the Trina Vertex N TSM-NEG19R.20 panel?
The most powerful variant in this series reaches up to 635 Wp rated power at a module efficiency of around 23.5%. A higher single-panel power output means fewer modules are needed to reach a given system size, which lowers mounting structure, cabling, and installation labor costs - especially noticeable in commercial installations and utility-scale PV farms.
Is the Trina Vertex N TSM-NEG19R.20 a bifacial (dual-sided) panel?
No - the variant labeled TSM-NEG19R.20 generates energy only from the front side of the module. Trina Solar offers a separate bifacial version of this platform - TSM-NEG19RC.20 - with a glass-glass construction that also captures light reflected off the ground. Both versions share the same TOPCon cells but differ in construction and how they generate energy, so it's worth checking the exact model code before purchasing.
What warranty comes with the Trina Vertex N TSM-NEG19R.20 series?
Trina Solar backs the Vertex N series with a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This longer power warranty compared to older PERC generations reflects the better long-term stability of N-type TOPCon cells, translating into a lower annual degradation rate and greater confidence in long-term return on investment.
Do Vertex N panels perform well on hot days and at high temperatures?
Yes, Vertex N modules have a low power temperature coefficient, typical of TOPCon technology. This means a smaller performance drop when the panel surface heats up significantly in summer compared to standard PERC modules. In practice, this results in more stable energy production on hot, sunny days, when many conventional panels lose part of their output.
What installations is the Trina Vertex N TSM-NEG19R.20 series best suited for - rooftops or PV farms?
Due to the module's large format (132 cells, up to 635 Wp) and a design optimized for low string voltage and high string power, the Vertex N series is intended primarily for commercial, industrial, and utility-scale PV farm installations, where maximizing yield per surface area and reducing BoS costs matter most. For residential sloped roofs, Trina offers lighter, smaller-format series such as Vertex S.
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