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Trina Solar TSM-DEG20C.20-590W
Trina Solar Brand review

TSM-DEG20C.20-590W

590 Wp PERC Bifacial 70%
ComparePV verdict

Warranty pick, modest efficiency

Rank 6,173 of 14,129
Compare panels Datasheet PDF
Power (Wp)
590
Strong · top 17%
Efficiency (%)
20.80
Weak · bottom 13%
Density (Wp/m²)
208.5
Weak · bottom 15%
Temp (%/°C)
-0.340
Typical · median -0.350
Weight (kg)
34.9
Weak · 4.1 kg above median
Warranty (yrs)
30
Strong · top 25%

Trina Solar Vertex Series (TSM-DEG20C.20) is designed for installations where maximum energy yield from a limited number of modules and real cost reduction in construction and cabling are key. The use of large monocrystalline silicon cells in the 210 mm format and mono PERC cells enables very high unit power without compromising daily performance. In practice, this translates to better energy production under low-light conditions and more stable operation in high heat, which is crucial for commercial and industrial installations.

The Vertex TSM-DEG20C.20 also features a system-design approach - the low-voltage concept allows for longer strings, simplifying the design and helping to reduce BOS costs. These modules are primarily targeted at PV farms, large rooftops, and tracker projects, where their construction and compatibility with popular inverters and tracking systems provide greater predictability and operational safety over the long term.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.80% 21.29% Weak · bottom 13% 10,533
Power density 208.5 212.9 Weak · bottom 15% 10,435
Temperature coefficient -0.340 -0.350 Typical 8,846
Weight per kWp 59.2 52.7 Weak · bottom 13% 12,125
Performance warranty 30 yrs 27 yrs Strong · top 25% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Commercial and utility-scale.

Not ideal for

Tight roof space, weight-limited structures and roofs where every square metre has to count.

Strengths
30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Watch-outs
20.80% module efficiency

Bottom 13% of the PERC 550-600 W segment, against a median of 21.29%.

59.2 kg per kWp

Bottom 13% of the PERC 550-600 W segment, against a median of 52.7.

208.5 watts per square metre

Bottom 15% of the PERC 550-600 W segment, against a median of 212.9.

Notes from the database
  • Efficiency of 20.8% matches the PERC 550-600W median
  • 208.5 W/m² power density is 4.4 W/m² below PERC 550-600W median (212.9 W/m²) - requires larger installation area
  • At -0.34%/°C, hot weather performance is typical for PERC 550-600W panels
  • Weight of 34.9 kg is 4.1 kg above PERC 550-600W median (30.8 kg) - verify structural support
  • Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 590 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.80 % Weak Segment median 21.29%
Vmpp · Impp 34.20 V · 17.25 A Operating point at max power
Voc · Isc 41.30 V · 18.31 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2172×1303×33 mm · 2.83 m² of roof
Weight 34.9 kg Weak Weak · 4.1 kg above median
Cells 120 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.340 %/°C Typical median -0.350 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 30 years Strong top 25% · median 27 yrs
End-of-warranty output 85.0 % Equals 501 W guaranteed
Degradation 2.00 → 0.45 % 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 590 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
-
With bifacial gain
-

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
-
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-DEG20C.20-590W 590 W 20.80% -0.340 34.9 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +4.0 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +4.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.8 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +40 W, cooler, +3.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg Cooler, 19 kg lighter, +3.6 pp
TSM-DEG20C.20-585W 585 W 20.70% -0.340 34.9 kg Very close match
TSM-DEG20C.20-595W 595 W 21.00% -0.340 34.9 kg Very close match
TSM-DEG20C.20-600W 600 W 21.20% -0.340 34.9 kg +10 W, +0.4 pp
TSM-DEG20C.20-605W 605 W 21.40% -0.340 34.9 kg +15 W, +0.6 pp
TSM-NEG20C.20-625 625 W 22.10% -0.290 34.9 kg +35 W, cooler, +1.3 pp
TSM-NEG20C.20-630 630 W 22.30% -0.290 34.9 kg +40 W, cooler, +1.5 pp
TSM-NEG20C.20-635 635 W 22.40% -0.290 34.9 kg +45 W, cooler, +1.6 pp
TSM-NEG20C.20-640 640 W 22.60% -0.290 34.9 kg +50 W, cooler, +1.8 pp
TSM-NEG20C.20-645 645 W 22.80% -0.290 34.9 kg +55 W, cooler, +2.0 pp
GKA210N120 680 W 24.03% -0.340 28.0 kg +90 W, lighter, +3.2 pp

Found 497 panels of the same or similar size to this one, within ±10 mm. See them here Found 502 panels of the same or similar size to this one, within ±25 mm. See them here Found 502 panels of the same or similar size to this one, within ±50 mm. See them here Found 502 panels of the same or similar size to this one, within ±100 mm. See them here

About the Vertex (TSM-DEG20C.20) series

6 answered

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

What is the maximum power output of the Trina Solar Vertex TSM-DEG20C.20 panel?
The Vertex TSM-DEG20C.20 series delivers up to 605 Wp, achieved through large 210 mm silicon cells and monocrystalline PERC technology. The module has 120 cells, dimensions of approximately 2172x1303x33 mm, and an efficiency reaching 21.2%. This is one of the higher unit power ratings in the industrial module segment, allowing fewer panels to reach a given system capacity.
How much extra energy does the bifacial design of the Vertex TSM-DEG20C.20 provide?
The panel uses a glass-glass construction and generates power from its rear side as well, with a power bifaciality factor of roughly 70±5%. In practice this translates to an additional yield of several to over ten percent, depending on mounting height, ground albedo, and racking type. The effect is most pronounced over bright, reflective surfaces, making the module well suited to utility-scale PV farms and tracker-based installations.
Is the Trina Solar Vertex TSM-DEG20C.20 series still available for purchase?
No, the TSM-DEG20C.20 series has been discontinued and replaced by newer Trina Solar models, including the Vertex N series based on TOPCon technology. It can still be purchased through distributor stock while supplies last. Customers looking to expand an existing array with the same model should expect limited availability and verify compatibility with panels they already own.
What warranty applies to the Vertex TSM-DEG20C.20 product and power output?
Trina Solar provides a 12-year product warranty and a 30-year power output warranty, guaranteeing at least 84.95% of nominal power at the end of the period. This is standard for tier 1 industrial-grade modules. Despite the series being discontinued, the warranty remains valid and is honored by the manufacturer according to the terms in the warranty documentation.
What does the Vertex TSM-DEG20C.20's low-voltage design concept mean for installers?
Despite the module's high power output, per-panel operating voltage is kept moderate, allowing installers to build longer strings without exceeding inverter voltage limits. This reduces the number of combiner boxes, cable runs, and MC4 connectors needed, which meaningfully lowers BoS costs (cabling, mounting structures, protection devices) in large ground-mount and rooftop systems.
Is the Vertex TSM-DEG20C.20 suitable for a residential roof or better suited to utility-scale PV farms?
This series was designed primarily for utility-scale PV farms, large commercial roofs, and tracker installations, where its large format and glass-glass construction support longer string designs. On a typical sloped residential roof, the panel is often too large and heavy for standard roof trusses, so smaller series such as Vertex S are a better fit for residential use.
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