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Tongwei Brand review

TWMNH-48HD460

460 Wp N-type Bifacial 80%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 7,487 of 14,129
Compare panels Datasheet PDF
Power (Wp)
460
Typical for its class
Efficiency (%)
23.00
Typical · median 22.52%
Density (Wp/m²)
230.2
Typical · median 225.3
Temp (%/°C)
-0.280
Strong · top 21%
Weight (kg)
23.7
Typical · median 23.7 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Tongwei TWMNH-48HD series are compact N-type modules engineered to generate more energy from the same rooftop surface - without compromising on durability. The key difference lies in the bifacial construction, which harnesses both direct and reflected light, significantly boosting energy yield in ground-mounted installations, carports, and light-coloured rooftops. The implementation of half-cut cell technology enhances performance under partial shading and minimizes losses, enabling the modules to perform optimally in typical urban environments (e.g., chimneys, antennas, trees).

In practice, the TWMNH-48HD series addresses energy production drops on overcast days - N-type cells maintain stable performance in low-light conditions and demonstrate greater resistance to long-term degradation. Moreover, the dual-glass (dual glass) construction increases environmental resilience and facilitates long-term system design. This series targets demanding prosumers and small to medium-sized commercial projects where energy output, aesthetic appeal of the black frame, and predictable system performance are paramount.

Ranking

302 panels in the segment N-type 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.00% 22.52% Typical 1,970
Power density 230.2 225.3 Typical 1,927
Temperature coefficient -0.280 -0.290 Strong · top 21% 1,347
Weight per kWp 51.5 49.7 Typical 4,928
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 · 0 caution
Best for

Residential, commercial, shaded-installations and BIPV.

Strengths
-0.280 %/°C temperature coefficient

Top 21% of the N-type 450-500 W segment, against a median of -0.290.

Notes from the database
  • At 23.0% efficiency, this panel is on par with typical N-type 450-500W modules
  • At 230.2 W/m² power density, this panel generates 4.9 W/m² more per unit area than N-type 450-500W median (225.3 W/m²)
  • Temperature coefficient of -0.28%/°C matches the N-type 450-500W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 14% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 460 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.00 % Typical Segment median 22.52%
Vmpp · Impp 30.69 V · 14.99 A Operating point at max power
Voc · Isc 36.15 V · 16.05 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 23.7 kg Typical Typical · median 23.7 kg
Cells 96 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 21% of its segment
Coefficient Voc · Isc -0.240 · 0.046 %/°C
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 402 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 460 Wp appear here. The rest cover the whole series.

Linear Power Output Warranty Linear Power Output Warranty Whole series Cell temperature 25°C Cell temperature 25°C Whole series Power-Voltage (P-V) Curve Power-Voltage (P-V) Curve 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 TWMNH-48HD460 460 W 23.00% -0.280 23.7 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +50 W, cooler, +2.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +35 W, lighter, +1.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +45 W, cooler, +1.7 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +45 W, cooler, +1.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +30 W, lighter, +1.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +40 W, cooler, +1.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +40 W, lighter, +1.5 pp
TWMNH-48HD430 430 W 21.50% -0.280 20.9 kg -30 W, lighter, -1.5 pp
TWMNH-48HD435 435 W 21.80% -0.280 20.9 kg -25 W, lighter, -1.2 pp
TWMNH-48HD440 440 W 22.00% -0.280 20.9 kg -20 W, lighter, -1.0 pp
TWMNH-48HD445 445 W 22.30% -0.280 20.9 kg -15 W, lighter, -0.7 pp
TWMNH-48HD450 450 W 22.50% -0.280 20.9 kg -10 W, lighter, -0.5 pp

Found 1402 panels of the same or similar size to this one, within ±10 mm. See them here Found 1432 panels of the same or similar size to this one, within ±25 mm. See them here Found 3651 panels of the same or similar size to this one, within ±50 mm. See them here Found 3999 panels of the same or similar size to this one, within ±100 mm. See them here

About the TWMNH-48HD series

6 answered

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

What does N-type cell technology mean for the Tongwei TWMNH-48HD and is it worth the price?
N-type cells have lower annual degradation and perform better in low-light conditions than older P-type (PERC) cells. In practice, TWMNH-48HD loses less power on cloudy days and over its lifetime, translating into higher total energy yield over 25-30 years, despite a somewhat higher upfront cost compared to cheaper cell technologies.
Is the bifacial version of TWMNH-48HD worth choosing over a standard panel?
Bifacial construction makes the most sense for ground-mount, carport, and light-colored flat roof installations, where the rear side captures reflected light and can boost output by several to over ten percent. On a typical dark, pitched roof with little clearance, the bifacial gain will be minimal, but the module still benefits from the more durable glass-glass build.
What warranty comes with Tongwei TWMNH-48HD modules?
The TWMNH-48HD series carries a 15-year product warranty covering material and workmanship defects, plus a 30-year power warranty guaranteeing 87.4 percent of rated output after 30 years. This is standard for a tier-1 manufacturer like Tongwei and among the longer warranty periods currently available for N-type modules.
Does the TWMNH-48HD 465W panel handle partial shading well, such as from a chimney or antenna?
Yes, the half-cut cell layout splits each cell into halves wired into independent strings with bypass diodes. When part of the panel is shaded by a chimney, antenna, or tree, power loss is limited to the affected section rather than the whole module. This is a meaningful advantage in typical urban rooftop conditions where full roof exposure is often hard to achieve.
What are the dimensions and weight of the Tongwei TWMNH-48HD panel, and does it fit a typical pitched roof?
The module measures 1762 x 1134 x 30 mm with a 96-cell (6x16) layout, fitting standard mounting rail spacing available on the market. The glass-glass construction is heavier than backsheet panels, so it's worth confirming roof load capacity and suitable mounting clamps with your installer, especially on older, lighter roof structures.
Does the TWMNH-48HD reach the full 465 Wp rating, and why do power figures vary between offers?
The TWMNH-48HD series is manufactured across a 445 to 465 Wp power range, with the exact output depending on the cell binning class of a given production batch - higher bins cost more. Check the datasheet for the specific batch you're buying, since market listings sometimes quote the top of the range as a representative figure.
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