--- title: "WINAICO WST-490NGX60-AA Solar Panel: Specs & Datasheet | ComparePV" description: "WINAICO WST-490NGX60-AA solar panel. Specs: 22.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/winaico-wst-490ngx60-aa" image: "https://comparepv.com/og/panel/winaico-wst-490ngx60-aa.png" updated: 2026-11-06 --- # WINAICO WST-490NGX60-AA Middle of its segment, heavy for its output 1,105 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** WINAICO - **Model:** WST-490NGX60-AA - **Series:** WST-NGX60-AA - **Rated power:** 490 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1105 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 490 W | 465 W | Strong - top 13% | | | Module efficiency | 22.70% | 22.52% | Typical | 3,430 | | Power density | 226.5 | 225.2 | Typical | 3,617 | | Temperature coefficient | -0.310 | -0.290 | Weak - bottom 6% | 8,163 | | Weight (kg) | 28.0 kg | 24.0 kg | Weak - bottom 6% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 31 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.70% | 22.52% | Typical | 3,430 | | Power density | 226.5 | 225.2 | Typical | 3,617 | | Temperature coefficient | -0.310 | -0.290 | Weak - bottom 6% | 8,163 | | Weight per kWp | 57.1 | 52.2 | Weak - bottom 6% | 11,266 | | Performance warranty | 30 yrs | 30 yrs | Typical | 31 | ### Watch out for - **57.1 kg per kWp** - Bottom 6% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 11,266th in the whole database. - **-0.310 %/°C temperature coefficient** - Bottom 6% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 8,163rd in the whole database. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 490 W - **Efficiency:** 22.70 % - **Voltage at Pmax (Vmp):** 35.66 V - **Current at Pmax (Imp):** 13.74 A - **Open-circuit voltage (Voc):** 42.96 V - **Short-circuit current (Isc):** 14.39 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.310 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 120 - **Bifacial:** yes - **Bifacial gain:** 20.00 ### Physical - **Length:** 1908 mm - **Width:** 1134 mm - **Thickness:** 40 mm - **Weight:** 28.0 kg - **Area:** 2.16 m2 - **Power density:** 226.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 428 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3430 of 14269 | | Power density | 3617 of 14269 | | Temperature coefficient | 8163 of 14269 | | Weight | 11266 of 14269 | | Warranty | 31 of 14269 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - Efficiency of 22.7% matches the \*\*TOPCon 450-500W\*\* median - Power density of 226.5 W/m² matches the \*\*TOPCon 450-500W\*\* median - 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 - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/WINAICO_WST-500NGX60-AA_TW_0925-75c5f34a292a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Jinko Solar JKM510T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm510t-48hl6m-db) | 510 W | Cooler, lighter, +2.8 pp | | [Jinko Solar JKM505T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm505t-48hl6m-db) | 505 W | Cooler, lighter, +2.6 pp | | [Jinko Solar JKM500T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm500t-48hl6m-db) | 500 W | Cooler, lighter, +2.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +2.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.1 pp | | [Jinko Solar JKM495T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm495t-48hl6m-db) | 495 W | Cooler, lighter, +2.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.0 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, lighter, +2.0 pp | | [Maxeon SPR-BE54-HD505](https://comparepv.com/panel/maxeon-spr-be54-hd505) | 505 W | Cooler, +2.0 pp, +10 yr warranty | | [WINAICO WST-495NGX60-AW](https://comparepv.com/panel/winaico-wst-495ngx60-aw) | 495 W | Very close match | | [WINAICO WST-500NGX60-AW](https://comparepv.com/panel/winaico-wst-500ngx60-aw) | 500 W | +10 W, +0.4 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +70 W, cooler, +2.1 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +65 W, cooler, +1.9 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +60 W, lighter, +1.7 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +50 W, cooler, +1.7 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +50 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/winaico-wst-490ngx60-aa Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.