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Tongwei Brand review

TNC M10-72 Bifacial

590 Wp TOPCon
ComparePV verdict

Strong in heat, no clear weak spot

Rank 3,836 of 14,129
Compare panels Datasheet PDF
Power (Wp)
590
Strong · top 18%
Efficiency (%)
22.80
Strong · top 22%
Density (Wp/m²)
228.4
Strong · top 17%
Temp (%/°C)
-0.280
Strong · top 5%
Weight (kg)
31.5
Typical · median 31.2 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Tongwei TNC Series of solar panels redefines performance standards thanks to proprietary N-type cell technology, which significantly reduces energy losses at the atomic level. The use of TNC (Tongwei N-type Cell) technology allows for higher light conversion efficiency compared to conventional TOPCon solutions available on the market. The innovative design based on SMBB multi-busbar cells ensures better current flow and minimizes the risk of harmful micro-cracks, which translates into decades of trouble-free operation for the entire system. These panels effectively eliminate the problem of light-induced degradation, offering exceptional resistance to LID and LeTID phenomena. Thanks to an excellent temperature coefficient, these modules work significantly more efficiently on hot summer days, generating more energy from the same roof area. This is an ideal solution for investors looking for maximum yields in difficult lighting conditions, characteristic of the capricious Polish climate. The Tongwei TNC Series stands out from the competition thanks to full control of the silicon supply chain, guaranteeing the highest material purity and stability of electrical parameters for every module. These products are ideal for both residential micro-installations and demanding commercial projects where the priority is the lowest levelized cost of energy (LCOE).

Ranking

1,022 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.80% 22.44% Strong · top 22% 2,769
Power density 228.4 224.4 Strong · top 17% 2,653
Temperature coefficient -0.280 -0.290 Strong · top 5% 1,347
Weight per kWp 53.4 53.8 Typical 7,361
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 0 caution
Best for

Residential, commercial, utility-scale, shaded-installations and hot-climate.

Strengths
-0.280 %/°C temperature coefficient

Top 5% of the TOPCon 550-600 W segment, against a median of -0.290. Ranked 1,347th in the whole database.

228.4 watts per square metre

Top 17% of the TOPCon 550-600 W segment, against a median of 224.4.

22.80% module efficiency

Top 22% of the TOPCon 550-600 W segment, against a median of 22.44%.

Notes from the database
  • At 22.8% efficiency, this panel is on par with typical TOPCon 550-600W modules
  • At 228.4 W/m² power density, this panel generates 4.0 W/m² more per unit area than TOPCon 550-600W median (224.4 W/m²)
  • At -0.28%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • Ranked #2769 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 590 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.80 % Strong Segment median 22.44%
Vmpp · Impp 44.27 V · 13.33 A Operating point at max power
Voc · Isc 52.70 V · 13.90 A Sizes the string length
Dimensions 2278×1134 mm · 2.58 m² of roof
Weight 31.5 kg Typical Typical · median 31.2 kg
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 5% of its segment
Coefficient Voc · Isc -0.240 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 516 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Tongwei 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.

Linear Power Output Warranty Linear Power Output Warranty Whole series Cell temperature 25°C (I-V curves at different irradiance levels) Cell temperature 25°C (I-V curves at different irradiance levels) Whole series Power vs Voltage curves at different irradiance levels Power vs Voltage curves at different irradiance levels 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
-0.280 %/°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
Tongwei TNC M10-72 Bifacial 590 W 22.80% -0.280 31.5 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg -30 W, lighter, +2.0 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +50 W, lighter, +2.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -35 W, lighter, +1.8 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +45 W, lighter, +1.8 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +40 W, cooler, +1.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg -40 W, 15 kg lighter, +1.6 pp
TWMND-72 HD575 575 W 22.30% -0.280 31.5 kg -15 W, -0.5 pp
TWMND-72HD580 580 W 22.50% -0.280 31.5 kg -10 W, -0.3 pp
TWMND-72HD585 585 W 22.60% -0.280 31.5 kg Very close match
TWMND-72HD595 595 W 23.00% -0.280 31.5 kg Very close match
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +60 W, lighter, +2.4 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +55 W, lighter, +2.2 pp

Found 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2548 panels of the same or similar size to this one, within ±100 mm. See them here

About the TNC Series series

6 answered

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

How much power can Tongwei TNC Series panels with 710 Wp output actually generate?
TNC Series panels reach a maximum output of up to 710 Wp thanks to N-type TOPCon cell technology, delivering higher conversion efficiency on the same surface area compared to classic PERC modules. For a typical 6 kWp residential installation, about 8-9 panels are needed, meaningfully reducing the required roof area while keeping the same system capacity.
What warranty comes with Tongwei TNC Series panels?
Tongwei provides a 12-year product warranty and a 30-year linear power output warranty. This covers both manufacturing defects and excessive efficiency loss over time. Tongwei holds Tier 1 manufacturer status, confirming financial stability and a realistic ability to honor warranty claims throughout this entire period.
Do TNC Series panels perform well on hot summer days?
Yes, TNC Series modules feature a favorable temperature coefficient typical of TOPCon technology, limiting power loss at high cell operating temperatures compared to older PERC-based solutions. In practice, this means smaller efficiency drops on hot summer days, when a roof-mounted panel's temperature can significantly exceed ambient temperature.
How does the N-type TOPCon technology in TNC Series differ from standard PERC panels?
The N-type cells used in TNC Series have a purer silicon structure and an additional passivation layer, reducing carrier recombination and energy losses compared to classic P-type PERC cells. The result is higher module efficiency, lower light-induced degradation, and better resistance to LID and LeTID, translating into more stable energy yields throughout the system's lifetime.
Are Tongwei TNC Series panels resistant to microcracks and mechanical damage?
Yes, the design based on multi-busbar SMBB cells spreads current across more connection paths, reducing the risk of microcracks and limiting the impact of a single cell defect on overall panel performance. This construction improves the module's mechanical durability, which matters both during transport and installation and over years of exposure to snow and wind loads on the roof.
Is the Tongwei TNC Series a bifacial panel?
No, this configuration of the TNC Series is a monofacial panel, not bifacial. It generates energy only from irradiance hitting the front side of the module. Customers looking for extra energy gain from light reflected off the ground can ask Tongwei about separate bifacial variants offered in other product series, so it's worth checking availability when placing an order.
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