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Talesun TM3G48M-450W
Talesun Brand review

TM3G48M-450W

450 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 8,563 of 14,005
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 9%
Efficiency (%)
22.50
Typical · median 22.52%
Density (Wp/m²)
225.2
Typical · median 225.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
24.7
Weak · bottom 17%
Warranty (yrs)
30
Typical · median 30 yrs

The Talesun TM3G48M (BIPRO) series are bifacial modules with a 96-cell configuration, designed for reliable operation in demanding installation conditions. The key advantage is the combination of N-type TOPCon cell technology with a dual glass construction, resulting in lower degradation over time and better environmental resilience compared to many traditional modules with a rear film. The application of 16BB half-cut helps minimize internal losses and improves power output under low-light conditions, which is significant for real-world operation in Poland.

This series is for investors seeking to extract more energy from the same surface area-particularly on ground-mounted systems, flat roofs, and installations where reflected light from the ground actually contributes to energy yield. Additionally, the modules feature high resistance to PID and a sealed component housing (e.g., junction box), facilitating the design of systems resilient to humidity, dust, and wind without concerns about performance degradation.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.50% 22.52% Typical 4,222
Power density 225.2 225.2 Typical 4,225
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 54.9 52.2 Weak · bottom 17% 9,274
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 · 1 caution
Best for

Commercial and shaded-installations.

Not ideal for

Weight-limited structures.

Watch-outs
54.9 kg per kWp

Bottom 17% of the TOPCon 450-500 W segment, against a median of 52.2.

Notes from the database
  • Efficiency of 22.5% matches the TOPCon 450-500W median
  • At 225.2 W/m² power density, roof space requirements are typical for TOPCon 450-500W panels
  • Temperature coefficient of -0.29%/°C matches the TOPCon 450-500W median
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • #4222 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.50 % Typical Segment median 22.52%
Vmpp · Impp 30.09 V · 14.96 A Operating point at max power
Voc · Isc 35.64 V · 15.86 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 24.7 kg Weak Weak · bottom 17%
Cells 96 · 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 · 0.043 %/°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 393 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Talesun in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 450 Wp appear here. The rest cover the whole series.

30-Year Linear Performance Warranty 30-Year Linear 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
Talesun TM3G48M-450W 450 W 22.50% -0.290 24.7 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +45 W, lighter, +2.3 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +40 W, lighter, +2.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +2.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, lighter, +2.0 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, lighter, +2.0 pp
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, cooler, +2.0 pp
TM3G48M-435W 435 W 21.80% -0.290 24.7 kg -15 W, -0.7 pp
TM3G48M-440W 440 W 22.00% -0.290 24.7 kg -10 W, -0.5 pp
TM3G48M-445W 445 W 22.30% -0.290 24.7 kg Very close match
TM3G48M-455W 455 W 22.80% -0.290 24.7 kg +0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +55 W, cooler, +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
How much extra energy does the bifacial design of the Talesun TM3G48M generate?
Thanks to the dual glass construction and rear-side generation, the module also captures light reflected from the ground. In practice this adds a bifacial gain of roughly a few up to around ten-plus percent compared to a standard monofacial panel, depending on mounting height, ground albedo (e.g., light gravel or snow), and tilt angle. The largest gains occur in ground-mount and flat-roof east-west installations.
Is the Talesun TM3G48M suitable for flat roofs, or only ground-mount systems?
The TM3G48M series performs well both on ground-mount arrays and flat roofs, where the panel sits with clearance above the surface so reflected light can reach the rear glass. On sloped roofs mounted flush to the surface, the bifacial gain will be minimal, but the panel still functions as a standard high-efficiency mono module. The rigid dual glass build also handles heavy snow and wind loads well.
What warranty applies to the product and power output of the TM3G48M series?
Talesun offers a 15-year product warranty and a 30-year linear power warranty, standard for its newer TOPCon module generation. First-year degradation is capped at around 1%, with subsequent annual degradation not exceeding roughly 0.4%, meaning the panel should retain over 87% of its original output after 30 years.
How does TOPCon technology in the TM3G48M differ from older PERC cells?
N-type TOPCon cells feature an additional thin passivating oxide layer that reduces electron recombination and lowers energy losses compared to conventional P-type PERC cells. This results in higher efficiency (the module reaches up to 455 Wp), better low-light performance, and slower degradation over time, meaningfully extending the system's productive lifespan.
Are Talesun TM3G48M modules resistant to PID and moisture?
Yes, the series offers high resistance to potential-induced degradation (PID), which matters in large arrays running at higher system voltages. The junction box also carries an IP68 rating, and combined with the dual glass construction it effectively shields the module interior from moisture, dust, and water vapor, reducing corrosion risk and preventing performance loss in harsh environments.
How does the TM3G48M perform in cold winter conditions like in Poland?
Solar panels, including the TM3G48M series, actually perform more efficiently at lower temperatures because cooler silicon reduces voltage losses. The half-cut cell design with 16 busbars further improves output under the diffuse, low-intensity light typical of Polish winters, while the rigid frame and glass backsheet handle snow load well, which matters when snow cover lingers on the module.
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