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WINAICO Brand review

WST-415MGX-E3

415 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 11,114 of 14,129
Compare panels Datasheet PDF
Power (Wp)
415
Typical for its class
Efficiency (%)
21.30
Typical · median 21.48%
Density (Wp/m²)
212.5
Typical · median 214.7
Temp (%/°C)
-0.340
Typical · median -0.300
Weight (kg)
21.6
Typical · median 23.0 kg
Warranty (yrs)
25
Weak · bottom 18%

The WST-MGX-E3 GEMINI series from WINAICO was engineered for commercial-scale installations, where both performance and long-term reliability matter. The modules use monocrystalline half-cut cells arranged in six independent strings, which reduces power losses under partial shading and improves resistance to microcracks. The black anodised frame gives the panels a clean, uniform appearance, making them well suited to industrial rooftops as well as larger business installations where building aesthetics are a priority. The GEMINI series stands out from competing products with its extended product warranty and a linear performance guarantee spanning a quarter of a century, translating into a predictable return on investment and a lower levelized cost of energy (LCOE) over the system's lifetime. The construction withstands high mechanical loads, snow, and wind, while highly sealed connectors ensure safe operation in demanding weather conditions. This is a solution for investors and PV system designers who expect stable, proven technology from a European manufacturer along with clear warranty terms, not just a declared nominal panel output.

Ranking

6,941 panels in the 315-515 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 21.48% Typical 8,585
Power density 212.5 214.7 Typical 8,858
Temperature coefficient -0.340 -0.300 Typical 8,846
Weight per kWp 52.0 53.1 Typical 5,529
Performance warranty 25 yrs 30 yrs Weak · bottom 18% 9,912
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

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 18% of the 315-515 W band, against a median of 30 yrs.

Notes from the database
  • At 21.3% efficiency, this panel is 0.5pp below the database median of 21.8%
  • 212.5 W/m² power density is 5.6 W/m² below database median (218.1 W/m²) - requires larger installation area
  • -0.34%/°C temperature coefficient - 0.04pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • At 21.6 kg, this panel is 4.9 kg lighter than database median (26.5 kg) - easier handling during installation
  • #8585 for efficiency, #8846 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 415 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Typical Segment median 21.48%
Vmpp · Impp 31.68 V · 13.10 A Operating point at max power
Voc · Isc 37.71 V · 13.94 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 21.6 kg Typical Typical · median 23.0 kg
Cells 108 Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.260 · 0.048 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 18% · median 30 yrs
End-of-warranty output 85.3 % Equals 343 W guaranteed
Degradation 2.00 → 0.53 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by WINAICO in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 415 Wp appear here. The rest cover the whole series.

WINAICO Performance Guarantee WINAICO Performance Guarantee 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
-

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

Heat losses
-0.340 %/°C against a segment median of -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
WINAICO WST-415MGX-E3 415 W 21.30% -0.340 21.6 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +50 W, +2.5 pp, +5 yr warranty
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +50 W, cooler, +2.5 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg Cooler, +2.3 pp, +5 yr warranty
LX-465M/182R188-108+ GG 465 W 23.60% -0.290 24.5 kg +50 W, cooler, +2.3 pp
JST-EDMH-(445-465)W-TD (460W class) 460 W 23.56% -0.300 20.5 kg +45 W, +2.3 pp, +5 yr warranty
LX-460M/182R-96+ GG 460 W 23.55% -0.260 23.5 kg Cooler, +2.2 pp, +5 yr warranty
PS-MNB108(HCBF)-460W 460 W 23.53% -0.290 20.5 kg Cooler, +2.2 pp, +5 yr warranty
JAT54S40-460/LR 460 W 23.50% -0.260 19.3 kg Cooler, +2.2 pp, +5 yr warranty
WST-400MGX-P3 Full Black 400 W 20.44% -0.350 21.5 kg -15 W, -0.9 pp
WST-405MGX-E5 405 W 20.80% -0.320 21.7 kg -10 W, cooler, -0.5 pp
WST-410MGX-P3 410 W 20.95% -0.350 21.5 kg -0.4 pp
WST-410MGX-E3 410 W 21.00% -0.340 21.6 kg -0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +95 W, cooler, +3.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +80 W, cooler, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +90 W, cooler, +3.4 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +90 W, cooler, +3.4 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-MGX-E3 GEMINI 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-MGX-E3 GEMINI series still available for purchase?
The WST-MGX-E3 GEMINI series has been discontinued by WINAICO and replaced by newer models in the current lineup. Panels may still be available from distributors as remaining stock, so it's worth confirming availability and production date with your supplier before ordering a larger batch for a commercial installation.
What is the maximum power output of the WST-MGX-E3 GEMINI panel?
The GEMINI series modules reach a maximum power output of up to 415 Wp. This is achieved using monocrystalline half-cut cells arranged in six independent strings, delivering high power density while maintaining good resistance to partial shading, common on industrial rooftops with ventilation equipment.
What warranty applies to WINAICO GEMINI panels?
WINAICO provides a 15-year product warranty and a 25-year linear power output warranty on the GEMINI series. This means the manufacturer covers not only manufacturing defects but also guarantees a defined power output level over a quarter century, helping investors precisely calculate ROI for commercial PV installations.
Are the WST-MGX-E3 GEMINI panels bifacial?
No, the WST-MGX-E3 GEMINI series consists of monofacial panels and does not use bifacial technology. This means they generate electricity only from sunlight hitting the front surface of the module, a standard approach for typical rooftop installations where modules are mounted close to the roof surface.
What distinguishes the frame design of WINAICO GEMINI panels?
GEMINI panels feature a black anodized frame that gives them a uniform, aesthetic appearance, beneficial where building facade design matters, such as office or warehouse installations with a visible roof section. The frame withstands high mechanical loads, including heavy snow and strong wind, as confirmed by manufacturer certifications.
Is WINAICO a Tier 1 manufacturer, and where is it based?
Yes, WINAICO is classified as a Tier 1 manufacturer, confirming financial stability and years of experience in producing photovoltaic modules. The company is headquartered in Taiwan, where it manufactures to international quality standards, an important factor when selecting a supplier for large commercial installations with long-term warranties.
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