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Trina Solar TSM-NEG9RC.27-415
Trina Solar Brand review

TSM-NEG9RC.27-415

415 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, modest efficiency

Rank 9,496 of 14,129
Compare panels Datasheet PDF
Power (Wp)
415
Weak · bottom 9%
Efficiency (%)
20.80
Weak · bottom 3%
Density (Wp/m²)
207.7
Weak · bottom 3%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
21.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

This Trina Solar Vertex S+ (Bifacial Dual Glass) series is designed for roofs where both energy yield and resilience to challenging conditions are crucial. Its key feature is the combination of glass-glass construction with N-type bifacial cells, enabling the utilization of reflected light from the substrate and significantly boosting energy production in installations on light-colored roofs, membranes, or elevated structures. The applied i-TOPCon technology ensures more stable long-term performance and reduced susceptibility to common efficiency drops found in older solutions. Dual glass enhances safety and durability, while also better tolerating high-humidity environments, salt exposure, and the presence of ammonia. Modules in this series are also designed for high compatibility with popular inverters and optimizers, facilitating upgrades and expansions. This is an ideal solution for demanding residential and commercial installations where reliability, aesthetics, and predictable energy yield are key.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.80% 22.00% Weak · bottom 3% 10,533
Power density 207.7 220.2 Weak · bottom 3% 10,622
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 50.6 51.5 Typical 4,042
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

Residential and commercial.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Watch-outs
20.80% module efficiency

Bottom 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 10,533rd in the whole database.

207.7 watts per square metre

Bottom 3% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 10,622nd in the whole database.

Notes from the database
  • Efficiency of 20.8% is 1.2pp below the TOPCon 400-450W median (22.0%)
  • Power density of 207.7 W/m² is 12.5 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • Weight of 21.0 kg is typical for TOPCon 400-450W panels
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 415 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.80 % Weak Segment median 22.00%
Vmpp · Impp 42.10 V · 9.86 A Operating point at max power
Voc · Isc 50.10 V · 10.50 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 21.0 kg Typical Typical · median 22.0 kg
Cells 144 · 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 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 363 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 415 Wp appear here. The rest cover the whole series.

Trina Solar's Vertex Bifacial Dual Glass Performance Warranty Trina Solar's Vertex Bifacial Dual Glass 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
-
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-NEG9RC.27-415 415 W 20.80% -0.290 21.0 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +50 W, hotter, +3.0 pp
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +50 W, cooler, +3.0 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +45 W, +2.8 pp
LX-465M/182R188-108+ GG 465 W 23.60% -0.290 24.5 kg +50 W, heavier, +2.8 pp
JST-EDMH-(445-465)W-TD (460W class) 460 W 23.56% -0.300 20.5 kg +45 W, hotter, +2.8 pp
LX-460M/182R-96+ GG 460 W 23.55% -0.260 23.5 kg +45 W, cooler, +2.8 pp
PS-MNB108(HCBF)-460W 460 W 23.53% -0.290 20.5 kg +45 W, +2.7 pp
JAT54S40-460/LR 460 W 23.50% -0.260 19.3 kg +45 W, cooler, +2.7 pp
TSM-DE09R.05-405 405 W 20.30% -0.340 21.8 kg Hotter, -0.5 pp, -5 yr warranty
TSM-DE09R.05-410 410 W 20.50% -0.340 21.8 kg Hotter, -0.3 pp, -5 yr warranty
TSM-DE09R.08-420 420 W 21.00% -0.340 21.8 kg Hotter, -5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +95 W, cooler, +4.2 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +80 W, cooler, +4.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +90 W, cooler, +3.9 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +90 W, heavier, +3.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +75 W, cooler, +3.7 pp

Found 1402 panels of the same or similar size to this one, within ±10 mm. See them here Found 1432 panels of the same or similar size to this one, within ±25 mm. See them here Found 3651 panels of the same or similar size to this one, within ±50 mm. See them here Found 3999 panels of the same or similar size to this one, within ±100 mm. See them here

About the Vertex S+ (Bifacial Dual Glass) series

6 answered

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

How does the bifacial technology in Trina Vertex S+ panels differ from standard monofacial panels?
Vertex S+ panels use bifacial N-type TOPCon cells that also generate energy from the rear side of the module, capturing light reflected off the roof, membrane, or a bright ground surface. In practice this means an additional energy gain of a few to over a dozen percent compared to a classic monofacial panel, especially when installed on light, highly reflective surfaces or on elevated mounting structures.
What warranty comes with Trina Solar Vertex S+ panels and what does it cover?
The series comes with a 25-year product warranty and a 30-year linear power output warranty. The product warranty covers material and workmanship defects, while the power warranty guarantees a specified minimum energy production level over the following years of operation, ensuring a predictable return on investment even after two decades of use.
Are Trina Vertex S+ 420 Wp panels compatible with popular inverters such as Huawei, SolarEdge, or Fronius?
Yes, this series is designed for high compatibility with a wide range of inverters and optimizers available on the market, including popular brands used in residential and commercial installations. Standard operating voltages and currents fall within typical MPPT ranges, making inverter selection easier for both new installations and system expansions.
What is i-TOPCon technology and why does Trina Solar use it in the Vertex S+ series?
i-TOPCon is an N-type cell technology that reduces energy losses caused by charge carrier recombination, resulting in higher module efficiency and slower power degradation over time compared to older P-type PERC cells. This allows Vertex S+ panels to maintain more stable energy production throughout their entire service life, even after many years of operation.
Will the glass-glass construction of Vertex S+ panels hold up in coastal or high-humidity installations?
Yes, dual glass combined with an aluminum frame and sealed lamination provides better resistance to moisture, salt mist, and ammonia exposure, which matters for installations near the sea or agricultural livestock facilities. This construction also lowers the risk of PID degradation and extends module lifespan in harsher environmental conditions.
How much extra power do Vertex S+ bifacial panels realistically deliver compared to a standard installation?
The rear-side energy gain depends on ground albedo, mounting height, and tilt angle. On light-colored roofs, EPDM membranes, or elevated mounting structures, you can expect a few to over a dozen percent more annual energy yield than from a monofacial panel of the same 420 Wp rating. On dark, low-mounted roofs the bifacial effect is smaller, but the panel still performs normally on the front side.
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