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WINAICO Brand review

WST-500NGX60-AA

500 Wp TOPCon Bifacial 80%
ComparePV verdict

Space saver, heavy for its output

Rank 6,037 of 14,269
Compare panels Datasheet PDF
Power (Wp)
500
Weak · bottom 10%
Efficiency (%)
23.10
Strong · top 23%
Density (Wp/m²)
231.1
Strong · top 22%
Temp (%/°C)
-0.310
Weak · bottom 9%
Weight (kg)
28.0
Weak · 1.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The WINAICO WST-NGX60-AA series consists of solar modules built on N-type TOPCon cells in a half-cut configuration, enclosed in a glass-glass construction that delivers outstanding mechanical durability and resistance to microcracks and PID degradation. Thanks to bifacial technology, the panels also capture light reflected off the ground, generating extra energy yield without increasing the installed footprint - a real advantage wherever every square meter of roof or land matters. The series was designed for commercial and residential installations where high power density and a low levelized cost of energy (LCOE) over the system's lifetime are the priority. Cells arranged across six independent strings reduce the impact of partial shading on overall module output, while the double glass sheets minimize corrosion risk and extend service life even in harsh weather conditions. The manufacturer backs the series with a 15-year product warranty and a 30-year linear power warranty, making it an appealing choice for investors who expect predictable returns and stable energy production over many decades of operation.

Ranking

438 panels in the segment TOPCon 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.10% 22.74% Strong · top 23% 1,660
Power density 231.1 227.4 Strong · top 22% 1,717
Temperature coefficient -0.310 -0.290 Weak · bottom 9% 8,163
Weight per kWp 56.0 52.5 Weak · bottom 9% 10,478
Performance warranty 30 yrs 30 yrs Typical 31
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 3 caution
Best for

Roofs where every square metre counts and small roofs that need every watt.

Not ideal for

Weight-limited structures and hot climates.

Strengths
231.1 watts per square metre

Top 22% of the TOPCon 500-550 W segment, against a median of 227.4.

23.10% module efficiency

Top 23% of the TOPCon 500-550 W segment, against a median of 22.74%.

Watch-outs
56.0 kg per kWp

Bottom 9% of the TOPCon 500-550 W segment, against a median of 52.5. Ranked 10,478th in the whole database.

-0.310 %/°C temperature coefficient

Bottom 9% of the TOPCon 500-550 W segment, against a median of -0.290. Ranked 8,163rd in the whole database.

What owners get
High-efficiency N-type TOPCon cells

Efficiency of 22.7-23.1% places the WST-NGX60-AA series clearly above the Silfab SIL HM (21%) and roughly in line with the Selfa SV120M.2.4 (22.6%), translating into higher energy yield per m² of roof or ground area.

30-year linear power warranty

The manufacturer guarantees a linear power degradation curve over 30 years, exceeding the standard 25-year warranty offered by most tier-1 manufacturers and giving investors a longer, more predictable payback horizon.

Glass-glass construction with bifacial technology

Double glass panes reduce the risk of PID degradation and micro-cracking, while bifacial rear-side generation from reflected light delivers additional energy yield without increasing installation footprint - a key advantage where roof or land area is limited.

Established Tier-1 bankable manufacturer

WINAICO is a Taiwan-based manufacturer founded in 2003 and classified as a bankable Tier-1 supplier, reducing financing risk for investors and lenders compared with less established brands among the peer comparables.

Six independent cell strings

Splitting the module into six independent strings limits output loss from partial shading (e.g., leaves, chimneys, masts), which is especially relevant for residential installations with irregular sun exposure.

Trade-offs
Efficiency trails the segment leader

Peak efficiency of 23.1% is about 1.4 percentage points below the Gokin GK-3-54HGF (24.5%) at the same 500 Wp maximum power, which can mean lower total energy yield in projects where roof/ground area is a hard constraint.

Notes from the database
  • At 23.1% efficiency, this panel is on par with typical TOPCon 500-550W modules
  • At 231.1 W/m² power density, this panel generates 3.7 W/m² more per unit area than TOPCon 500-550W median (227.4 W/m²)
  • At -0.31%/°C, loses 0.02pp more power per degree than TOPCon 500-550W median (-0.29%/°C)
  • Weight of 28.0 kg is typical for TOPCon 500-550W panels
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 500 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.10 % Strong Segment median 22.74%
Vmpp · Impp 35.86 V · 13.94 A Operating point at max power
Voc · Isc 43.18 V · 14.55 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1908×1134×40 mm · 2.16 m² of roof
Weight 28.0 kg Weak Weak · 1.0 kg above median
Cells 120 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.310 %/°C Weak bottom 9% of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°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 437 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
-0.310 %/°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-500NGX60-AA 500 W 23.10% -0.310 28.0 kg You are here
JKM510T-48HL6M-DB 510 W 25.52% -0.240 22.0 kg Cooler, lighter, +2.4 pp
JKM505T-48HL6M-DB 505 W 25.27% -0.240 22.0 kg Cooler, lighter, +2.2 pp
JKM500T-48HL6M-DB 500 W 25.02% -0.240 22.0 kg Cooler, lighter, +1.9 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +1.9 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +1.7 pp
JKM495T-48HL6M-DB 495 W 24.77% -0.240 22.0 kg Cooler, lighter, +1.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +1.6 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, lighter, +1.6 pp
SPR-BE54-HD505 505 W 24.70% -0.260 26.0 kg Cooler, +1.6 pp, +10 yr warranty
WST-490NGX60-AA 490 W 22.70% -0.310 28.0 kg -10 W, -0.4 pp
WST-495NGX60-AW 495 W 22.90% -0.310 28.0 kg -0.2 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +60 W, cooler, +1.7 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +55 W, cooler, +1.5 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +50 W, lighter, +1.3 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg Cooler, lighter, +1.3 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg Cooler, lighter, +1.3 pp

Found 766 panels of the same or similar size to this one, within ±10 mm. See them here Found 775 panels of the same or similar size to this one, within ±25 mm. See them here Found 926 panels of the same or similar size to this one, within ±50 mm. See them here Found 1510 panels of the same or similar size to this one, within ±100 mm. See them here

About the WST-NGX60-AA 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 WINAICO WST-NGX60-AA solar panels?
Modules from the WST-NGX60-AA series reach a maximum power output of up to 500 Wp. This is achieved thanks to N-type TOPCon half-cut cells, which deliver higher efficiency and lower losses than older PERC cells. The high per-unit power output allows fewer panels to be used to reach a target system capacity, which matters when roof space is limited.
How do bifacial WST-NGX60-AA panels differ from standard modules?
WST-NGX60-AA panels have a transparent rear side, allowing them to capture light reflected off the ground, roof, or surroundings, not just direct irradiance from above. This provides an additional energy yield, especially on bright surfaces like white gravel, roofing membranes, or snow. The actual gain depends on mounting height, tilt angle, and ground albedo, but typically ranges from a few to over ten percent.
What warranty comes with WINAICO WST-NGX60-AA panels?
The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power warranty guaranteeing a minimum performance level throughout that period. This exceeds the standard 10-12 year product warranty offered by many manufacturers, resulting in more predictable long-term returns on investment.
Is the glass-glass construction of the WST-NGX60-AA more durable than a standard glass-foil panel?
Yes. Encapsulating the cells between two glass sheets significantly increases resistance to microcracks, moisture ingress, and PID degradation compared to a standard glass-foil construction. This build better withstands mechanical loads such as hail or snow pressure, ensuring more stable module performance under harsh weather conditions throughout its service life.
Are WST-NGX60-AA panels suitable for large-scale commercial installations?
Yes, the WST-NGX60-AA series is designed for commercial and residential applications where high power density and low levelized cost of energy (LCOE) are priorities. Six independent strings reduce the impact of partial shading on overall module output, which is important for large installations on industrial roofs or solar farms with uneven sunlight exposure.
Is WINAICO a reliable solar panel manufacturer?
WINAICO is a Taiwan-based manufacturer classified as a Tier 1 supplier, indicating financial stability and a documented track record of uninterrupted production for at least two years. The Tier 1 status combined with long product and power warranties provides additional security for investors, increasing the likelihood of successful warranty claims throughout the system's operational lifetime.
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