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WINAICO Brand review

WST-435NGX-D3

435 Wp N-type Bifacial 80%
ComparePV verdict

Space saver, heavy for its output

Rank 5,989 of 14,129
Compare panels Datasheet PDF
Power (Wp)
435
Typical for its class
Efficiency (%)
22.30
Strong · top 18%
Density (Wp/m²)
222.8
Strong · top 17%
Temp (%/°C)
-0.300
Weak · bottom 25%
Weight (kg)
24.0
Weak · 2.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The WINAICO WST-NGX-D3 series is engineered to capture the maximum amount of sunlight even under diffuse or low-irradiance conditions. At the core of the design is N-type TOPCon technology paired with a bifacial glass-glass construction, allowing the module to harvest additional energy from light reflected onto its rear surface, meaningfully boosting system yield in challenging installation settings. A dual tempered-glass build replaces the traditional backsheet, delivering significantly improved resistance to PID and LID degradation along with better protection against moisture ingress and micro-damage, resulting in stable performance over decades. The series also stands out for its resilience against harsh environmental conditions, including hail impact and ammonia corrosion, making it a strong fit for agricultural and coastal installations. Robust Stäubli connectors and careful encapsulation further reduce long-term failure risk. This makes the WST-NGX-D3 a solid choice for investors and installers seeking modules with enhanced durability and predictable output, backed by a 30-year linear performance warranty with minimal annual degradation, setting it apart from standard monofacial panels commonly found on the market.

Ranking

322 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 21.95% Strong · top 18% 5,161
Power density 222.8 218.4 Strong · top 17% 5,212
Temperature coefficient -0.300 -0.290 Weak · bottom 25% 6,152
Weight per kWp 55.2 51.2 Weak · bottom 25% 9,671
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 2 caution
Best for

Commercial and agrivoltaic.

Not ideal for

Weight-limited structures and hot climates.

Strengths
222.8 watts per square metre

Top 17% of the N-type 400-450 W segment, against a median of 218.4.

22.30% module efficiency

Top 18% of the N-type 400-450 W segment, against a median of 21.95%.

Watch-outs
55.2 kg per kWp

Bottom 25% of the N-type 400-450 W segment, against a median of 51.2.

-0.300 %/°C temperature coefficient

Bottom 25% of the N-type 400-450 W segment, against a median of -0.290.

Notes from the database
  • Efficiency of 22.3% matches the N-type 400-450W median
  • 222.8 W/m² power density - 4.4 W/m² more than N-type 400-450W median (218.4 W/m²), more power per roof area
  • At -0.30%/°C, hot weather performance is typical for N-type 400-450W panels
  • Weight of 24.0 kg is 2.0 kg above N-type 400-450W median (22.0 kg) - verify structural support
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 435 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Strong Segment median 21.95%
Vmpp · Impp 33.01 V · 13.18 A Operating point at max power
Voc · Isc 38.72 V · 13.89 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×35 mm · 1.95 m² of roof
Weight 24.0 kg Weak Weak · 2.0 kg above median
Cells 108 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 25% of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 380 W guaranteed
Degradation 1.00 → 0.40 % 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
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.300 %/°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
WINAICO WST-435NGX-D3 435 W 22.30% -0.300 24.0 kg You are here
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +50 W, lighter, +2.0 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +50 W, cooler, +2.0 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.0 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +50 W, cooler, +2.0 pp
WST-400MGX-P3 Full Black 400 W 20.44% -0.350 21.5 kg Hotter, -1.9 pp, -5 yr warranty
WST-405MGX-E5 405 W 20.80% -0.320 21.7 kg -30 W, -1.5 pp, -5 yr warranty
WST-410MGX-P3 410 W 20.95% -0.350 21.5 kg Hotter, -1.4 pp, -5 yr warranty
WST-410MGX-E3 410 W 21.00% -0.340 21.6 kg Hotter, -1.3 pp, -5 yr warranty
WST-415MGX-E3 415 W 21.30% -0.340 21.6 kg Hotter, -1.0 pp, -5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +75 W, cooler, +2.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +70 W, cooler, +2.4 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +70 W, cooler, +2.4 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +55 W, cooler, +2.2 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +65 W, cooler, +2.2 pp

Found 1797 panels of the same or similar size to this one, within ±10 mm. See them here Found 1928 panels of the same or similar size to this one, within ±25 mm. See them here Found 3413 panels of the same or similar size to this one, within ±50 mm. See them here Found 4007 panels of the same or similar size to this one, within ±100 mm. See them here

About the WST-NGX-D3 Series series

6 answered

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

Is the WINAICO WST-NGX-D3 series still available for purchase?
The WST-NGX-D3 series has been discontinued from current production and replaced by newer WINAICO models. Panels may still be available as remaining stock through distributors, but it's worth confirming the manufacturing date and warranty validity before buying. If expanding an existing array, contact your supplier to confirm compatibility with already-installed modules from this series.
How does the bifacial glass-glass construction of the WST-NGX-D3 differ from a standard monofacial panel?
A standard panel has an opaque backsheet on the rear side. The WST-NGX-D3 uses two tempered glass layers instead, allowing the TOPCon cells to also capture light reflected onto the rear surface. In practice this adds several extra percentage points of energy yield, especially on light-colored ground, east-west orientations, or elevated mounting structures.
What warranty comes with WINAICO WST-NGX-D3 panels?
The WST-NGX-D3 series is backed by a 30-year product warranty and a 30-year linear power warranty with minimal annual degradation. This is significantly longer than the typical 10-12 year product warranty and 25-year power warranty offered on standard monofacial PERC panels, making this series attractive for long-term investment projects.
Are WST-NGX-D3 modules suitable for farm rooftops or coastal installations?
Yes, the series is rated for hail resistance and ammonia corrosion resistance, both confirmed by environmental certifications. This makes it well-suited for agricultural installations where ammonia fumes from livestock are present, as well as coastal zones exposed to humidity and salt. The sealed glass-glass construction also reduces the risk of internal cell corrosion over time.
What is the maximum power output of panels in the WST-NGX-D3 series?
Top variants in the WST-NGX-D3 series reach up to 540 Wp, thanks to high-efficiency N-type TOPCon cells. Combined with bifacial technology, the actual energy yield from a single module can exceed the nominal STC rating measured on the front side alone, depending on ground albedo and mounting height.
Does N-type TOPCon technology in the WST-NGX-D3 mean lower degradation over time compared to P-type panels?
Yes, N-type TOPCon cells show lower susceptibility to LID and PID degradation compared to older P-type PERC cells. WINAICO further reinforces this with the glass-glass construction, which better protects the cells from moisture ingress. The result is more stable energy production throughout the full 30-year linear power warranty period.
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