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Trina Solar TSM-DE17M(II)-440W
Trina Solar Brand review

TSM-DE17M(II)-440W

440 Wp PERC
ComparePV verdict

Strong in heat, modest efficiency

Rank 11,798 of 14,129
Compare panels Datasheet PDF
Power (Wp)
440
Strong · top 15%
Efficiency (%)
20.10
Weak · bottom 16%
Density (Wp/m²)
201.3
Weak · bottom 16%
Temp (%/°C)
-0.340
Strong · top 24%
Weight (kg)
24.0
Typical · median 22.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

Trina Solar Tallmax Framed 144 Layout Module (TSM-DE17M(II)) is designed to maximize energy yield and deliver real energy savings in installations. The key here is the 144 half-cut architecture - lower resistive losses translate to more stable performance in hot conditions and better tolerance to partial shading, which is crucial on rooftops with chimneys, window wells, or ground-mounted systems with uneven sun exposure. The application of MBB (multi busbar) technology improves current collection from the cells and minimizes microheating, supporting long-term reliability. The series also emphasizes high PID resistance and mechanical durability, making it suitable for demanding conditions involving wind and snow loads. Lower BOS costs are also important for investors - higher power per module allows reducing the number of panels, structures, and cabling. This is a good choice for commercial installations, PV farms, and large industrial rooftops, where LCOE and predictable long-term production matter.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.10% 20.60% Weak · bottom 16% 12,187
Power density 201.3 206.2 Weak · bottom 16% 12,174
Temperature coefficient -0.340 -0.350 Strong · top 24% 8,846
Weight per kWp 54.5 53.0 Typical 8,953
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 2 caution
Best for

Commercial and shaded-installations.

Not ideal for

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

Strengths
-0.340 %/°C temperature coefficient

Top 24% of the PERC 400-450 W segment, against a median of -0.350.

Watch-outs
20.10% module efficiency

Bottom 16% of the PERC 400-450 W segment, against a median of 20.60%.

201.3 watts per square metre

Bottom 16% of the PERC 400-450 W segment, against a median of 206.2.

Notes from the database
  • At 20.1% efficiency, this panel is on par with typical PERC 400-450W modules
  • 201.3 W/m² power density is 4.9 W/m² below PERC 400-450W median (206.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.34%/°C matches the PERC 400-450W median
  • At 24.0 kg, this panel is 2.0 kg heavier than the PERC 400-450W median (22.0 kg) - more demanding for installation crews
  • Ranked #12187 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 440 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.10 % Weak Segment median 20.60%
Vmpp · Impp 40.70 V · 10.82 A Operating point at max power
Voc · Isc 49.20 V · 11.39 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2102×1040×35 mm · 2.19 m² of roof
Weight 24.0 kg Typical Typical · median 22.0 kg
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Strong top 24% of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 361 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

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
-0.340 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Trina Solar TSM-DE17M(II)-440W 440 W 20.10% -0.340 24.0 kg You are here
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +50 W, cooler, +4.4 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +50 W, cooler, +4.4 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg Cooler, +4.2 pp, +5 yr warranty
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg Cooler, +4.2 pp, +5 yr warranty
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg Cooler, +4.2 pp, +5 yr warranty
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg Cooler, +4.2 pp, +5 yr warranty
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg Cooler, +4.2 pp, +5 yr warranty
TSM-DE17M(II)-435W 435 W 19.90% -0.340 24.0 kg -0.2 pp
TSM-DE17M(II)-445W 445 W 20.40% -0.340 24.0 kg +0.3 pp
TSM-DE17M(II)-450W 450 W 20.60% -0.340 24.0 kg +10 W, +0.5 pp
TSM-DE17M(II)-455W 455 W 20.80% -0.340 24.0 kg +15 W, +0.7 pp
TSM-DE17M(II)-460W 460 W 21.00% -0.340 24.0 kg +20 W, +0.9 pp
TSM-DE17M(II)-465W 465 W 21.30% -0.340 24.0 kg +25 W, +1.2 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +150 W, +3.7 pp, +5 yr warranty
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +145 W, +3.5 pp, +5 yr warranty
BGO 580 580 W 23.50% -0.290 26.0 kg +140 W, cooler, +3.4 pp

Found 289 panels of the same or similar size to this one, within ±10 mm. See them here Found 325 panels of the same or similar size to this one, within ±25 mm. See them here Found 352 panels of the same or similar size to this one, within ±50 mm. See them here Found 1050 panels of the same or similar size to this one, within ±100 mm. See them here

About the Tallmax Framed 144 Layout Module (TSM-DE17M(II)) series

6 answered

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

Is the Trina Solar Tallmax Framed 144 (TSM-DE17M(II)) series still available for purchase?
No, the Tallmax Framed 144 Layout Module (TSM-DE17M(II)) series has been discontinued by Trina Solar. Panels may still be found through distributors selling remaining stock, but new factory orders are no longer being fulfilled. It's worth checking current inventory with your supplier or considering newer Trina series such as Vertex or Vertex S+.
What is the maximum power output of the Tallmax Framed 144 TSM-DE17M(II) series?
Modules in this series reach a maximum power output of up to 460 Wp. Thanks to the 144 half-cut cell architecture and MBB technology, the module maintains high efficiency in a relatively compact footprint, reducing the number of panels needed to reach a given system capacity.
What warranty comes with Trina Tallmax Framed 144 (TSM-DE17M(II)) panels?
The manufacturer provides a 12-year product warranty and a 25-year power output warranty. This means protection against material and manufacturing defects for 12 years, plus a guarantee of maintaining a defined energy production level for a quarter of a century, a standard offering from a tier 1 manufacturer.
How does PERC cell technology in these panels differ from standard cells?
PERC cells feature an additional passivation layer on the rear side that reflects unused light back into the cell, increasing its absorption. In practice this means higher solar-to-electricity conversion efficiency compared to standard cells, and combined with the half-cut architecture and MBB technology, it results in more stable module performance, especially in hot weather.
Are Tallmax Framed 144 panels suitable for large industrial roofs and PV farms?
Yes, the series was designed for commercial installations, PV farms, and large industrial rooftops. The high power output per module allows for fewer panels, less mounting structure, and shorter cabling runs, lowering BoS costs and improving project economics measured by LCOE.
Are TSM-DE17M(II) modules resistant to PID and harsh weather conditions?
Yes, the series offers high resistance to potential-induced degradation (PID) along with strong mechanical durability, contributing to good resistance against wind and snow loads. MBB technology also reduces cell micro-cracking heat effects, supporting long-term reliability.
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