--- title: "Q-SUN Solar QNM210-HG590-60 590W Solar Panel - Specs & Review | ComparePV" description: "Q-SUN Solar QNM210-HG590-60 590W solar panel. Specs: 20.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg590-60" updated: 2026-09-11 --- # Q-SUN Solar QNM210-HG590-60 Warranty pick, modest efficiency 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Q-SUN Solar - **Model:** QNM210-HG590-60 - **Series:** QNM210-HG-60 (Bifacial PERC Half-Cell Module) - **Rated power:** 590 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 590 W | 560 W | Strong - top 17% | | | Module efficiency | 20.80% | 21.29% | Weak - bottom 13% | 10,457 | | Power density | 208.5 | 212.9 | Weak - bottom 15% | 10,359 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 34.8 kg | 30.8 kg | Weak - bottom 16% | | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.80% | 21.29% | Weak - bottom 13% | 10,457 | | Power density | 208.5 | 212.9 | Weak - bottom 15% | 10,359 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 59.0 | 52.7 | Weak - bottom 16% | 11,973 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. ### Watch out for - **20.80% module efficiency** - Bottom 13% of the PERC 550-600 W segment, against a median of 21.29%. - **208.5 watts per square metre** - Bottom 15% of the PERC 550-600 W segment, against a median of 212.9. - **59.0 kg per kWp** - Bottom 16% of the PERC 550-600 W segment, against a median of 52.7. - **Best for:** Utility-scale, commercial and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 590 W - **Efficiency:** 20.80 % - **Voltage at Pmax (Vmp):** 34.20 V - **Current at Pmax (Imp):** 17.25 A - **Open-circuit voltage (Voc):** 41.23 V - **Short-circuit current (Isc):** 17.94 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.054 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 34.8 kg - **Area:** 2.83 m2 - **Power density:** 208.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 501 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10457 of 14005 | | Power density | 10359 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 11973 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Bifacial dual-side energy generation** - Bifacial construction captures light reflected from the ground surface, delivering a real yield boost over monofacial modules of equivalent nominal power when installed over light-colored surfaces (gravel, roofing membrane, tracker systems). - **Half-cut PERC design reduces losses** - Half-cell architecture lowers resistive losses and improves partial-shading tolerance, which matters under variable irradiance and incidence angles typical of Polish weather conditions. - **30-year power warranty at 84.95%** - The manufacturer specifies \<2% first-year degradation and \<0.45% per year afterward, guaranteeing at least 84.95% of initial power after 30 years - better than the typical 25-year/80.7% standard for older PERC modules. - **High unit power up to 610 Wp** - The top variant reaches 610 Wp at 21.6% efficiency, matching the leading peer comparable GCL-M12/60GDF (610 Wp/21.6%) and exceeding Techwise Solar Summit Series (610 Wp/21.55%). - **Reinforced frame for high mechanical loads** - The strengthened frame improves resistance to snow and wind loads, relevant for utility-scale and commercial installations exposed to extreme weather conditions. ## Cons - **No Tier-1 (BNEF) status** - Q-SUN Solar (founded 2014) does not appear on the BNEF Tier-1 manufacturer list, unlike major players in the peer comparables such as GCL. This can complicate bank financing for large-scale farm projects where bankability is a lender requirement. - **Efficiency trails leading TOPCon modules** - Maximum efficiency of 21.6% is nearly 2 percentage points behind Renewsys DESERV Extreme TOPCon (23.64% at the same 610 Wp power class), meaning a larger installation footprint is needed for comparable output. - **PERC technology losing ground to TOPCon/HJT** - The premium segment is shifting toward N-type TOPCon and HJT cells with lower LID degradation and better high-temperature performance; P-type PERC technology may see reduced resale value and price competitiveness longer term. ## About this series The Q-SUN Solar QNM210-HG-60 panel series is an advanced solution based on **210 mm format cells** that redefines efficiency standards in professional installations. Thanks to the use of **Bifacial PERC Half-Cell** technology, these modules not only generate energy from direct solar radiation but also effectively utilize light reflected from the ground. The half-cell construction effectively reduces losses resulting from internal resistance and significantly increases the panel's resistance to partial shading, which is crucial in the variable weather conditions of Poland. Utilizing **bifacial energy generation** allows investors to maximize yields from every square meter of surface, especially when installed on bright surfaces or tracking systems. This solution is primarily dedicated to large photovoltaic farms and commercial facilities, where the key indicator is the lowest levelized cost of energy (LCOE). This series is distinguished from the competition by a precise combination of high power density and exceptional thermal stability, which guarantees **long-term operational reliability** and a faster return on investment. The robust frame design provides protection against extreme mechanical loads, making this series one of the most **cost-effective choices in the premium segment** for demanding energy projects. ## Notable figures - At 20.8% efficiency, this panel is on par with typical \*\*PERC 550-600W\*\* modules - At 208.5 W/m², this panel generates 4.4 W/m² less per unit area than \*\*PERC 550-600W\*\* median (212.9 W/m²) - At -0.35%/°C, hot weather performance is typical for \*\*PERC 550-600W\*\* panels - At 34.8 kg, this panel is 4.0 kg heavier than the \*\*PERC 550-600W\*\* median (30.8 kg) - more demanding for installation crews - Ranked #10457 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output of the Q-SUN Solar QNM210-HG-60 and what sets it apart from competing modules? The Q-SUN Solar QNM210-HG-60 delivers a maximum power output of 610 Wp, achieved through the combination of 210 mm-format cells and Bifacial PERC Half-Cell technology. The large cell format enables a higher power density per square meter, which directly reduces the LCOE in utility-scale installations. This makes the module a compelling option for solar farms looking to maximize energy yield within a limited footprint. ### What does bifacial mean for the QNM210-HG-60 and how much additional energy can it generate? Bifacial means the module generates electricity from both sides: the front, capturing direct solar irradiance, and the rear, harvesting albedo light reflected from the ground surface. For the QNM210-HG-60 series, rear-side gain typically ranges from 10 to 20 percent depending on ground reflectivity and tilt angle. Best results are achieved over light-colored gravel, white roofing membranes, or tracker-mounted systems that optimize the angle of incidence throughout the day. ### Is the Q-SUN Solar QNM210-HG-60 suitable for residential rooftop installations or is it designed exclusively for utility-scale projects? The QNM210-HG-60 series is engineered primarily for large-scale solar farms and commercial installations where LCOE is the key performance indicator. The 610 Wp output and 210 mm cell format result in significant module dimensions and weight, which can complicate handling and mounting on typical pitched residential roofs. For residential prosumer systems, lighter and more compact modules are generally a better fit. Large flat roofs on warehouses or industrial buildings remain a viable application. ### What warranties come with the QNM210-HG-60 series and what do they cover? Q-SUN Solar provides a 12-year product warranty on the QNM210-HG-60 series, covering defects in materials and workmanship. The linear power output warranty extends to 30 years, guaranteeing that the module will maintain a defined percentage of its rated efficiency throughout that period. The extended power warranty is particularly important when calculating return on investment for commercial projects that are typically financed over two to three decades. ### Does the Half-Cell design of the QNM210-HG-60 improve performance under cloudy conditions or partial shading? Yes, the Half-Cell design splits each PERC cell into two halves, reducing internal resistance and minimizing power losses when irradiance is uneven across the module surface. Because each half-cell operates semi-independently, shading one portion of the panel does not suppress the output of the entire string to the same degree as in full-cell designs. Under the variable weather conditions common in Central Europe, this translates into measurably higher annual energy yields compared to conventional full-cell modules. ### Is Q-SUN Solar a Tier 1 manufacturer and does that matter when purchasing QNM210-HG-60 panels? Q-SUN Solar is not currently listed among Tier 1 manufacturers according to the BNEF bankability ranking. This means that securing project financing from lenders who require Tier 1 equipment may involve additional due diligence or risk assessment. For private investors and smaller installations the distinction carries less weight, but for large utility-scale projects with external financing it is advisable to confirm bankability requirements with a financial advisor before committing to this module series. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/QNM210-HG590-610-60-f098198a4b1e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.0 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +4.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +40 W, cooler, +3.6 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, 18 kg lighter, +3.6 pp | | [Q-SUN Solar QNM210-HG595-60](https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg595-60) | 595 W | Very close match | | [Q-SUN Solar QNM210-HG600-60](https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg600-60) | 600 W | +10 W, +0.4 pp | | [Q-SUN Solar QNM210-HG605-60](https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg605-60) | 605 W | +15 W, +0.6 pp | | [Q-SUN Solar QNM210-HG610-60](https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg610-60) | 610 W | +20 W, +0.8 pp | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | +90 W, lighter, +3.2 pp | | [Gamko New Energy GKA210N120-675](https://comparepv.com/panel/gamko-new-energy-gka210n120-675) | 675 W | +85 W, lighter, +3.1 pp | | [Q-SUN Solar QN-670HJT-01](https://comparepv.com/panel/q-sun-solar-qn-670hjt-01) | 670 W | +80 W, cooler, +2.9 pp | | [Gamko New Energy GKA210N120-670](https://comparepv.com/panel/gamko-new-energy-gka210n120-670) | 670 W | +80 W, lighter, +2.9 pp | | [Q-SUN Solar QN-665HJT-01](https://comparepv.com/panel/q-sun-solar-qn-665hjt-01) | 665 W | +75 W, cooler, +2.7 pp | | [Gamko New Energy GKA210N120-665](https://comparepv.com/panel/gamko-new-energy-gka210n120-665) | 665 W | +75 W, lighter, +2.7 pp | --- Source: https://comparepv.com/panel/qn-solar-pv-limited-qnm210-hg590-60 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.