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Trina Solar TSM-NEG9R.25-435
Trina Solar Brand review

TSM-NEG9R.25-435

435 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 7,586 of 14,129
Compare panels Datasheet PDF
Power (Wp)
435
Typical for its class
Efficiency (%)
21.80
Typical · median 22.00%
Density (Wp/m²)
217.7
Typical · median 220.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
21.0
Strong · 1.0 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

Trina Solar’s Vertex S+ (Dual Glass Monocrystalline Module) combines dual glass construction with cutting-edge n-type i-TOPCon cells, delivering enhanced module performance over a long lifespan and superior resistance to typical operational issues. The dual glass structure, replacing traditional backsheets, offers superior protection against moisture ingress and accelerated aging, while improving resilience against micro-cracks, delamination, and impacts - a key advantage for investors in hail-prone areas, high-humidity environments, or corrosive conditions. This design also ensures a high level of fire safety and greater reliability in real-world rooftop applications.

The Vertex S+ is engineered for residential and commercial rooftops, where both performance and aesthetics matter. An optional low-profile design supports a discreet installation appearance. Additionally, its compatibility with popular inverters and optimizers streamlines system design and upgrades. This series is ideal for clients seeking reduced maintenance risks and improved system profitability without compromising on quality.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.80% 22.00% Typical 7,085
Power density 217.7 220.2 Typical 7,129
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 48.3 51.5 Strong · top 22% 2,142
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

Residential and commercial.

Strengths
48.3 kg per kWp

Top 22% of the TOPCon 400-450 W segment, against a median of 51.5.

Notes from the database
  • At 21.8% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • Power density of 217.7 W/m² matches the TOPCon 400-450W median
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 21.0 kg, weight matches the TOPCon 400-450W median
  • Ranked #7085 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 435 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.80 % Typical Segment median 22.00%
Vmpp · Impp 43.60 V · 9.99 A Operating point at max power
Voc · Isc 51.80 V · 10.64 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 Strong Strong · 1.0 kg below median
Cells 144 · 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 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 380 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 435 Wp appear here. The rest cover the whole series.

Trina Solar's Dual Glass Performance Warranty Trina Solar's 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
-

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-NEG9R.25-435 435 W 21.80% -0.290 21.0 kg You are here
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +50 W, cooler, +2.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +50 W, cooler, +2.5 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.5 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +50 W, heavier, +2.5 pp
TSM-DE09R.05-405 405 W 20.30% -0.340 21.8 kg Hotter, -1.5 pp, -5 yr warranty
TSM-DE09R.05-410 410 W 20.50% -0.340 21.8 kg Hotter, -1.3 pp, -5 yr warranty
TSM-DE09R-415 415 W 20.80% -0.340 21.8 kg Hotter, -1.0 pp, -5 yr warranty
TSM-DE09R.08-420 420 W 21.00% -0.340 21.8 kg Hotter, -0.8 pp, -5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +75 W, cooler, +3.2 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +60 W, cooler, +3.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +70 W, cooler, +2.9 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +70 W, heavier, +2.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +55 W, cooler, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +65 W, cooler, +2.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +65 W, cooler, +2.7 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+ (Dual Glass Monocrystalline Module) series

6 answered

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

What is n-type i-TOPCon technology in Trina Vertex S+ panels and how does it differ from older PERC cells?
i-TOPCon is an n-type cell technology featuring an additional passivation layer on the rear side that reduces current losses and boosts module efficiency, reaching up to 22.5% at 450 Wp power output. Compared to conventional p-type PERC cells, TOPCon offers a lower annual power degradation rate, better performance in low-light conditions, and a lower temperature coefficient, resulting in higher annual energy yield, especially during summer months.
Does the dual glass construction of the Trina Vertex S+ mean it's a bifacial panel?
No, the dual glass construction of the Vertex S+ does not make it bifacial - the module is monofacial and generates power only from the front side. The two glass sheets replace the traditional backsheet foil, protecting the cells from moisture, microcracks, and accelerated aging. This design increases panel durability but does not provide the additional energy gain from reflected light that true bifacial modules offer.
What warranty comes with Trina Solar Vertex S+ panels?
The Vertex S+ series comes with a 25-year product warranty and a 30-year linear power warranty, ensuring the module maintains high performance throughout the entire lifespan of the PV installation. As a Tier 1 manufacturer with a long track record, Trina Solar offers a realistic chance of honoring such a long-term warranty, which is an important factor when choosing panels for a residential solar installation.
Which inverters and power optimizers are compatible with Vertex S+ panels?
Vertex S+ panels are designed for compatibility with widely available string inverters and power optimizers from popular brands, simplifying component selection when designing a system and making future upgrades or system expansion easier. The standard voltage and current parameters of the 450 Wp module don't require dedicated, expensive inverter solutions, which helps keep overall installation costs down.
Are Trina Vertex S+ panels suitable for a single-family home roof in terms of appearance?
Yes, the Vertex S+ series is designed with residential installations in mind, where aesthetics matter alongside energy yield. Versions with a more discreet, uniform appearance are available, blending well with single-family home architecture. The dual glass construction also gives the module a more consistent, cleaner visual finish compared to panels with a traditional backsheet.
What does Tier 1 manufacturer status mean for Trina Solar, and why does it matter when buying panels?
Tier 1 status, awarded by organizations such as Bloomberg New Energy Finance, indicates that Trina Solar is a financially stable manufacturer with a proven production track record and strong bankability in the eyes of financing institutions. In practice, this increases the likelihood the company will remain operational throughout the 25-year product warranty and 30-year power warranty period, reducing the buyer's risk regarding future warranty claims.
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