Middle of its segment, weak in heat
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
Signals from the data
Hot climates and weight-limited structures.
Bottom 6% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 8,163rd in the whole database.
Bottom 7% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 10,895th in the whole database.
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.
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.
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.
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.
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.
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.
- Efficiency of 22.9% matches the TOPCon 450-500W median
- Power density of 228.8 W/m² packs 3.6 W/m² more into the same footprint vs TOPCon 450-500W median (225.2 W/m²)
- At -0.31%/°C, loses 0.02pp more power per degree than TOPCon 450-500W median (-0.29%/°C)
- Weight of 28.0 kg is 4.0 kg above TOPCon 450-500W median (24.0 kg) - verify structural support
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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
These answers cover the whole series. Where a figure differs, the specification above is this module's own.