--- title: "JS Solar JS210MC150-490 490W Solar Panel - Specs & Review | ComparePV" description: "JS Solar JS210MC150-490 490W solar panel. Specs: 20.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/js-solar-js210mc150-490" updated: 2026-09-11 --- # JS Solar JS210MC150-490 Middle of its segment, modest efficiency 8,350 panels in the 390-590 W band, all technologies ## Identity - **Manufacturer:** JS Solar - **Model:** JS210MC150-490 - **Series:** JS210MC150 - **Rated power:** 490 W - **Cell technology:** Monocrystalline ## How it compares Compared against 390-590 W band, all technologies (8350 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 490 W | 460 W | Typical | | | Module efficiency | 20.30% | 21.76% | Weak - bottom 9% | 11,769 | | Power density | 203.3 | 217.6 | Weak - bottom 10% | 11,712 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight (kg) | 26.5 kg | 24.5 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 15% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.30% | 21.76% | Weak - bottom 9% | 11,769 | | Power density | 203.3 | 217.6 | Weak - bottom 10% | 11,712 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight per kWp | 54.1 | 52.5 | Typical | 8,300 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 15% | 9,798 | ### Watch out for - **20.30% module efficiency** - Bottom 9% of the 390-590 W band, against a median of 21.76%. Ranked 11,769th in the whole database. - **203.3 watts per square metre** - Bottom 10% of the 390-590 W band, against a median of 217.6. Ranked 11,712th in the whole database. - **25 year performance warranty** - Bottom 15% of the 390-590 W band, against a median of 30 yrs. - **Best for:** Commercial, shaded-installations and hot-climate. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 490 W - **Efficiency:** 20.30 % - **Voltage at Pmax (Vmp):** 42.40 V - **Current at Pmax (Imp):** 11.56 A - **Open-circuit voltage (Voc):** 51.30 V - **Short-circuit current (Isc):** 12.14 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 150 ### Physical - **Length:** 2187 mm - **Width:** 1102 mm - **Thickness:** 35 mm - **Weight:** 26.5 kg - **Area:** 2.41 m2 - **Power density:** 203.3 Wp/m2 ### Warranty and degradation - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 402 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11769 of 14005 | | Power density | 11712 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 8300 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **210mm cell + 1/3-cut with MBB** - 210mm wafers sliced into thirds (1/3-cut) reduce the working current per sub-cell, lowering resistive losses and operating temperature. The Multi-busbar (MBB) layout shortens electron path length and captures more reflected light, delivering higher energy yield than older half-cut designs. - **485–510 W output: lower BoS costs** - Higher per-module wattage directly reduces the number of modules, racking structures, DC wiring, and connectors required per kWp. On utility-scale projects ≥1 MWp, this can cut BoS costs by 8–12% compared to prior-generation 380–400 W panels. - **Up to 21.2% efficiency — Trina Vertex-tier** - The top-bin variant reaches 21.2% module efficiency, exactly matching the peer comparable Trina Solar Vertex Backsheet Monocrystalline Module (510 W, 21.2%). This places the series at the upper end of the M10/G12 PERC market segment. - **Full PID resistance** - The manufacturer declares 100% resistance to Potential Induced Degradation — a critical feature in 1500 V DC systems and high-humidity climates. IEC 61215 and IEC 61730 certifications confirmed via the ENF Solar panel directory. - **25-year linear power warranty** - A standard 25-year linear performance warranty aligns with the market norm set by Tier-1 manufacturers such as Trina and JA Solar, providing investors with a predictable degradation curve throughout the entire project financing period. ## Cons - **Not on BNEF Tier-1 list** - Yixing JS Solar Co. (est. 2011) does not appear on the BloombergNEF Tier-1 solar module list as of Q1 2026. For project-financed or leased installations, lenders typically require modules from BNEF Tier-1 manufacturers, which may restrict or complicate external financing for projects using this series. - **Efficiency gap vs. N-type peers** - Peer comparable JA Solar JAM60S40 LR (510 W) achieves 23% module efficiency, and Sunlike Solar SKT490~510M12-108D4 reaches 22.93%, while the JS210MC150 tops out at 21.2%. The 1.7–1.8% absolute gap means that, for the same roof or ground footprint, a JS Solar installation will generate measurably less energy than competing N-type TOPCon options. - **Monofacial only — no bifacial option** - The series is strictly monofacial (is\_bifacial: false), offering no albedo gain from the module's rear side. Bifacial counterparts such as the Trina Vertex S+ Bifacial report 5–20% additional yield depending on ground albedo, making the JS210MC150 less competitive for ground-mount and agrivoltaic installations. ## About this series JS Solar JS210MC150 photovoltaic panels are a high-performance solution based on **210 mm cell technology**, which redefines the approach to designing large-scale and rooftop installations. The use of next-generation silicon wafers in combination with an advanced **1/3-cut system** allows for exceptional efficiency while simultaneously lowering the module's operating temperature. As a result, this series effectively eliminates the problem of energy losses on hot days, ensuring stable power production throughout the year. A key benefit for the investor is a significant **reduction in BOS costs** - higher power from a single panel means less demand for mounting structures and faster investment completion time. Innovative **Multi-busbar (MBB)** technology shortens the electron flow path and increases light absorption, which, combined with high cell packing density, makes these modules some of the most efficient in their class. The JS210MC150 series also stands out for its **full resistance to the PID effect** and reinforced mechanical structure, which protects the installation against micro-cracks and degradation in harsh weather conditions. This solution is dedicated to professional solar farms and modern enterprises seeking maximum power density and uncompromising durability that goes beyond market standards. ## Notable figures - At 20.3% efficiency, this panel is 1.5pp below the \*\*database\*\* median of 21.8% - Power density of 203.3 W/m² is 14.8 W/m² below \*\*database\*\* median (218.1 W/m²) - needs more roof space - Temperature coefficient of -0.34%/°C is 0.04pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat - In the top 84% for efficiency among all N-type panels ## Questions ### What is the peak power output of the JS Solar JS210MC150 and is it suitable for large-scale installations? The JS Solar JS210MC150 delivers a peak output of 510 Wp, placing it firmly in the high-power module category designed for utility-scale and commercial rooftop systems. The higher per-module wattage reduces the total number of panels required to meet a target capacity, directly cutting BoS costs — including racking, cabling, and labor. ### What power output warranty does the JS210MC150 series come with? JS Solar provides a 25-year linear power output warranty for the JS210MC150 series, guaranteeing module performance over a quarter century of operation. A separate product warranty covering material and workmanship defects is typically offered through the distributor — confirm the exact coverage terms at the point of purchase. ### What is the 1/3-cut cell technology used in the JS210MC150 and why does it matter? The 1/3-cut design splits each silicon cell into three equal segments. Smaller cells carry lower operating currents, which reduces resistive losses and lowers the module's operating temperature on hot days. The result is more stable year-round energy production and an extended useful lifespan compared to conventional full-cell modules. ### Are JS210MC150 panels PID-resistant, and why does that matter for large systems? Yes, the JS210MC150 series is fully resistant to PID (Potential Induced Degradation). In large string systems, DC-side voltages can reach 1,000–1,500 V, which — without proper protection — accelerates cell degradation and causes measurable output losses over time. PID resistance is a critical feature for utility-scale solar farms and industrial rooftop installations. ### What cell technology does the JS210MC150 use — is it a monocrystalline Multi-busbar module? Yes, the JS210MC150 series uses monocrystalline silicon cells in the 210 mm (G12) format combined with Multi-busbar (MBB) technology. MBB shortens the electron current path and improves diffuse-light absorption, delivering higher module efficiency compared to conventional 5- or 9-busbar designs. The combination of large-format cells and MBB is characteristic of the most efficient modules in this generation. ### Are JS Solar JS210MC150 panels bifacial — do they generate power from both sides? No, the JS210MC150 is a monofacial module — power is generated exclusively from the front surface. This is fully adequate for standard rooftop and ground-mount installations on low-albedo substrates. Bifacial modules offer meaningful additional yield mainly when deployed over highly reflective surfaces such as white gravel or concrete, or in agrivoltaic applications. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/JS210MC150-510W-ef7ea67e49a0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +4.7 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +4.4 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +4.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +4.2 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +4.2 pp | | [JS Solar JS210MC150-485](https://comparepv.com/panel/js-solar-js210mc150-485) | 485 W | Very close match | | [JS Solar JS210MC150-495](https://comparepv.com/panel/js-solar-js210mc150-495) | 495 W | Very close match | | [JS Solar JS210MC150-500](https://comparepv.com/panel/js-solar-js210mc150-500) | 500 W | +10 W, +0.4 pp | | [JS Solar JS210MC150-505](https://comparepv.com/panel/js-solar-js210mc150-505) | 505 W | +15 W, +0.7 pp | | [JS Solar JS210MC150-510](https://comparepv.com/panel/js-solar-js210mc150-510) | 510 W | +20 W, +0.9 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +160 W, cooler, +4.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +155 W, cooler, +4.7 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +150 W, cooler, +4.5 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +145 W, cooler, +4.3 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +140 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/js-solar-js210mc150-490 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.