--- title: "WINAICO WST-495NGX60-AB Solar Panel: Specs & Datasheet | ComparePV" description: "WINAICO WST-495NGX60-AB solar panel. Specs: 22.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/winaico-wst-495ngx60-ab" image: "https://comparepv.com/og/panel/winaico-wst-495ngx60-ab.png" updated: 2026-11-06 --- # WINAICO WST-495NGX60-AB Middle of its segment, heavy for its output 1,105 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** WINAICO - **Model:** WST-495NGX60-AB - **Series:** WST-NGX60-AB - **Rated power:** 495 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) | 495 W | 465 W | Strong - top 4% | | | Module efficiency | 22.90% | 22.52% | Typical | 2,466 | | Power density | 228.8 | 225.2 | Typical | 2,552 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,240 | | Weight (kg) | 27.8 kg | 24.0 kg | Weak - bottom 8% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 31 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.90% | 22.52% | Typical | 2,466 | | Power density | 228.8 | 225.2 | Typical | 2,552 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,240 | | Weight per kWp | 56.2 | 52.2 | Weak - bottom 8% | 10,609 | | Performance warranty | 30 yrs | 30 yrs | Typical | 31 | ### Watch out for - **56.2 kg per kWp** - Bottom 8% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 10,609th in the whole database. - **-0.300 %/°C temperature coefficient** - Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 495 W - **Efficiency:** 22.90 % - **Voltage at Pmax (Vmp):** 37.25 V - **Current at Pmax (Imp):** 13.29 A - **Open-circuit voltage (Voc):** 44.70 V - **Short-circuit current (Isc):** 14.12 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 42 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:** 35 mm - **Weight:** 27.8 kg - **Area:** 2.16 m2 - **Power density:** 228.8 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:** 433 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2466 of 14269 | | Power density | 2552 of 14269 | | Temperature coefficient | 6240 of 14269 | | Weight | 10609 of 14269 | | Warranty | 31 of 14269 | ## Pros - **High N-type TOPCon efficiency** - Efficiency of 22.9-23.1% outperforms comparable 500 Wp modules such as Silfab SIL HM (21%) and Selfa SV120M.2.4 (22.6%), delivering higher energy yield per rooftop area. - **Glass-glass construction with bifacial cells** - Two layers of 2.0 mm tempered glass replace the traditional backsheet, significantly reducing PID degradation and microcrack risk, while bifaciality captures reflected light for extra yield, especially on light-colored roofs and ground-mount structures. - **30-year linear power warranty** - A 30-year performance warranty is among the longest in the segment, directly supporting lower LCOE across the installation's full lifecycle. - **Tier-1 manufacturer with 20+ years of history** - Founded in 2003 in Taiwan, WINAICO holds bankable Tier-1 status, reducing financial risk for bank or leasing-financed projects. - **Salt mist and ammonia corrosion resistance** - Certified frame corrosion resistance makes the series well-suited for agricultural and coastal installations, where standard modules degrade faster. ## Cons - **Efficiency trails segment leader** - At 22.9-23.1%, efficiency is notably lower than the Gokin GK-3-54HGF (24.5%) at the same 500 Wp power class, meaning potentially lower energy yield per square meter versus newer competing modules. - **15-year product warranty shorter than market trend** - The 15-year product warranty lags behind the 25-year standard increasingly offered by Tier-1 manufacturers on new-generation TOPCon modules, even though the power warranty reaches 30 years. ## About this series The WINAICO WST-NGX60-AB series consists of dual-glass N-type modules built on **TOPCon** technology, engineered for commercial and residential installations where maximizing energy yield per square meter of roof matters most. The use of **bifacial cells** lets the panel capture light reflected off the surrounding surface, meaningfully boosting energy production without adding to the installation's footprint, which is especially valuable on sites with light-colored roofing or ground-mounted arrays. The **glass-glass** construction, with two layers of 2.0 mm tempered glass replacing the traditional backsheet, significantly improves resistance to moisture ingress, microcracking, and PID degradation, extending module lifespan in demanding operating conditions. As a result, the manufacturer backs the series with one of the longer **linear performance warranties** on the market, spanning three decades of operation with minimal annual power loss. The series fits equally well on commercial rooftops and industrial buildings as it does in residential PV systems, where investors are focused on keeping LCOE low across the full lifecycle of the installation. A sturdy, anodized aluminum frame along with certified resistance to salt mist and ammonia corrosion make these panels a solid choice for agricultural and coastal sites, where standard modules tend to lose performance faster. ## Notable figures - At 22.9% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - 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) - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 450-500W\*\* median - Weight of 27.8 kg is 3.8 kg above \*\*TOPCon 450-500W\*\* median (24.0 kg) - verify structural support - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What is TOPCon technology in WINAICO WST-NGX60-AB panels and does it offer a real advantage over classic PERC? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces electron recombination at the cell surface through an additional passivation layer. In practice, this results in higher module efficiency and lower power degradation over time compared to older P-type PERC cells. For the WST-NGX60-AB series, this means higher energy yield from the same roof area and more stable performance at high temperatures. ### Does it make sense to install bifacial WST-NGX60-AB panels on a sloped residential roof? Bifacial cells deliver the most benefit when light can reflect off the surface beneath the panel, such as on ground-mounted systems, flat roofs with light-colored coverings, or freestanding structures. On a typical sloped roof, where the panel sits close to the surface, the extra gain from the rear side will be minimal, but the module still performs normally and does not lose efficiency compared to the monofacial version. ### What warranty comes with WINAICO WST-NGX60-AB panels and what does it cover? The manufacturer offers a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty guaranteeing a minimum output level throughout that period. This is one of the longest warranties on the market, which matters when calculating return on investment over a three-decade system lifespan. ### How does glass-glass construction differ from a standard backsheet panel, and is it worth the extra cost? In the glass-glass version, the rear backsheet is replaced with a second layer of 2.0 mm tempered glass, increasing resistance to moisture, micro-cracks, and PID degradation. This design is heavier but more durable in harsh conditions - on industrial roofs, agricultural buildings, or coastal sites where moisture and temperature swings degrade standard modules faster. The premium pays off through longer lifespan and a stronger linear power warranty. ### What is the maximum power output of the WST-NGX60-AB panel and what installations is it suited for? The series reaches a maximum power of up to 500 Wp, which combined with TOPCon technology and bifacial cells delivers a high energy yield per square meter. This makes the modules well suited for large commercial installations on industrial buildings as well as residential PV systems, where limited roof area and low lifecycle LCOE are key priorities. ### Are WINAICO panels suitable for coastal installations or agricultural buildings? Yes, the panel frame is anodized aluminum and the module has certified resistance to salt mist and ammonia corrosion. As a result, WST-NGX60-AB panels retain performance longer than standard modules in coastal environments, where salty air accelerates corrosion, and in agricultural buildings, where ammonia from livestock production can damage typical components. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/WINAICO_WST-500NGX60-AB_TW_1225-f09ab7cecca3.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, +2.6 pp | | [Jinko Solar JKM505T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm505t-48hl6m-db) | 505 W | Cooler, lighter, +2.4 pp | | [Jinko Solar JKM500T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm500t-48hl6m-db) | 500 W | Cooler, lighter, +2.1 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +1.9 pp | | [Jinko Solar JKM495T-48HL6M-DB](https://comparepv.com/panel/jinko-solar-jkm495t-48hl6m-db) | 495 W | Cooler, lighter, +1.9 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +1.8 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, lighter, +1.8 pp | | [Maxeon SPR-BE54-HD505](https://comparepv.com/panel/maxeon-spr-be54-hd505) | 505 W | Cooler, +1.8 pp, +10 yr warranty | | [WINAICO WST-490NGX60-AA](https://comparepv.com/panel/winaico-wst-490ngx60-aa) | 490 W | Hotter | | [WINAICO WST-500NGX60-AW](https://comparepv.com/panel/winaico-wst-500ngx60-aw) | 500 W | Hotter, +0.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +65 W, cooler, +1.9 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +60 W, cooler, +1.7 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +55 W, lighter, +1.5 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +45 W, lighter, +1.5 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +45 W, lighter, +1.5 pp | --- Source: https://comparepv.com/panel/winaico-wst-495ngx60-ab Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.