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Trina Solar TSM-445NED9R.28
Trina Solar Brand review

TSM-445NED9R.28

445 Wp TOPCon Bifacial
ComparePV verdict

Efficiency leader, heavy for its output

Rank 9,006 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.30
Strong · top 17%
Density (Wp/m²)
222.7
Typical · median 220.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
27.0
Weak · 5.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Vertex S+ Shield i-TOPCon Ultra series is engineered for rooftops exposed to harsh weather conditions - hail, strong winds, and heavy snow loads. At its core lies the patented n-type i-TOPCon Ultra technology, which delivers stable cell performance throughout the system's lifetime by reducing carrier recombination at the metal contact and optimizing edge passivation. The panel features a dual-glass construction, resistant to hailstone impact up to 55 mm and mechanical loads reaching thousands of pascals, making it a solution for installers seeking durability beyond the market standard. Its clean, uniform surface with no visible gaps between cells makes the module equally suited for residential rooftops and commercial installations. Thanks to low power degradation in the first year and throughout subsequent years of operation, the series delivers higher long-term energy yield and lower system costs. The whole series is backed by a 30-year linear performance warranty, giving investors confidence in the project's long-term profitability. This is a proposition for those who expect not only high efficiency but also module resilience against extreme weather events.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 22.00% Strong · top 17% 5,100
Power density 222.7 220.2 Typical 5,302
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 60.7 51.4 Weak · bottom 5% 12,514
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 · 1 caution
Best for

Residential, commercial and cold-climate.

Not ideal for

Weight-limited structures.

Strengths
22.30% module efficiency

Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%.

Watch-outs
60.7 kg per kWp

Bottom 5% of the TOPCon 400-450 W segment, against a median of 51.4. Ranked 12,514th in the whole database.

Notes from the database
  • At 22.3% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • Power density of 222.7 W/m² matches the TOPCon 400-450W median
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 27.0 kg (5.0 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
  • In the top 36% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Strong Segment median 22.00%
Vmpp · Impp 44.30 V · 10.05 A Operating point at max power
Voc · Isc 52.60 V · 10.71 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 27.0 kg Weak Weak · 5.0 kg above 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 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 389 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 445 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-445NED9R.28 445 W 22.30% -0.290 27.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, lighter, +2.5 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, lighter, +2.2 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, lighter, +2.2 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, lighter, +2.0 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, lighter, +2.0 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +2.0 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, lighter, +2.0 pp
TSM-DE09R.05-405 405 W 20.30% -0.340 21.8 kg Hotter, lighter, -2.0 pp
TSM-DE09R.05-410 410 W 20.50% -0.340 21.8 kg Hotter, lighter, -1.8 pp
TSM-DE09R-415 415 W 20.80% -0.340 21.8 kg Hotter, lighter, -1.5 pp
TSM-DE09R.08-420 420 W 21.00% -0.340 21.8 kg Hotter, lighter, -1.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, cooler, +2.4 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +55 W, cooler, +2.2 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +55 W, lighter, +2.2 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Trina Solar Vertex S+ Shield i-TOPCon Ultra series still available for purchase?
The Vertex S+ Shield i-TOPCon Ultra series has been discontinued by Trina Solar and replaced by newer models. Remaining stock may still be available through distributors, but quantities are limited. Anyone planning to expand an existing installation with additional modules from this series should act quickly, as matching this exact model may become impossible once remaining inventory sells out.
What warranty comes with the Trina Solar Vertex S+ Shield i-TOPCon Ultra 470 Wp modules?
The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power warranty. This means the panel guarantees a minimum percentage of its rated power output even after three decades of use. For installers and investors, this is a key factor when calculating return on investment over a 25-30 year horizon.
What is n-type i-TOPCon Ultra technology and how does it differ from standard PERC panels?
i-TOPCon Ultra is a patented n-type cell technology that reduces carrier recombination at the metal contact and optimizes edge passivation. In practice, this means lower internal energy losses and more stable module performance throughout its service life compared to older p-type PERC cells. The result is higher efficiency, lower annual degradation, and greater real-world energy yield over the long term.
Are the Vertex S+ Shield 470 Wp panels bifacial, and is it worth the extra investment?
Yes, this series uses bifacial cells in a glass-glass construction, allowing the rear side to capture reflected radiation as well. Depending on ground albedo, mounting height, and tilt angle, the additional energy gain can range from a few percent to over ten percent. This makes the panels especially effective on light-colored roofs, ground-mount systems, and installations on elevated racking.
Can the Vertex S+ Shield i-TOPCon Ultra withstand hail and heavy snow loads?
Yes, the Shield series was specifically engineered for harsh weather conditions. Its dual-glass construction withstands hailstones up to 55 mm in diameter and mechanical loads in the thousands of pascals generated by strong wind and snow accumulation. This makes it a recommended choice for roofs in mountainous regions or areas prone to extreme weather events.
Is Trina Solar a Tier 1 manufacturer, and what does that mean for investment security?
Yes, Trina Solar is a China-based Tier 1 manufacturer, reflecting financial stability, a long production track record, and product bankability recognized by financing institutions worldwide. For investors, this translates into lower risk when it comes to enforcing warranty claims in the future, as well as easier access to financing or insurance for PV installations built with modules from this manufacturer.
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