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Q-SUN Solar Brand review

QNM210-HG590-60

590 Wp PERC Bifacial
ComparePV verdict

Warranty pick, modest efficiency

Rank 6,112 of 14,005
Compare panels Datasheet PDF
Power (Wp)
590
Strong · top 17%
Efficiency (%)
20.80
Weak · bottom 13%
Density (Wp/m²)
208.5
Weak · bottom 15%
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
34.8
Weak · 4.0 kg above median
Warranty (yrs)
30
Strong · top 25%

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.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall 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
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 6 caution
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.

Strengths
30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Watch-outs
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.

What owners get
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.

Trade-offs
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.

Notes from the database
  • 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

Specifications

Open datasheet PDF
Nominal power (Pmax) 590 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.80 % Weak Segment median 21.29%
Vmpp · Impp 34.20 V · 17.25 A Operating point at max power
Voc · Isc 41.23 V · 17.94 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2172×1303×35 mm · 2.83 m² of roof
Weight 34.8 kg Weak Weak · 4.0 kg above median
Cells 120 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.280 · 0.054 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 85.0 % Equals 501 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.350 %/°C against a segment median of -0.350
-

Alternatives

All Q-SUN Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Q-SUN Solar QNM210-HG590-60 590 W 20.80% -0.350 34.8 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +4.0 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +4.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.8 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +40 W, cooler, +3.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg Cooler, 18 kg lighter, +3.6 pp
QNM210-HG595-60 595 W 21.00% -0.350 34.8 kg Very close match
QNM210-HG600-60 600 W 21.20% -0.350 34.8 kg +10 W, +0.4 pp
QNM210-HG605-60 605 W 21.40% -0.350 34.8 kg +15 W, +0.6 pp
QNM210-HG610-60 610 W 21.60% -0.350 34.8 kg +20 W, +0.8 pp
GKA210N120 680 W 24.03% -0.340 28.0 kg +90 W, lighter, +3.2 pp
GKA210N120-675 675 W 23.85% -0.340 28.0 kg +85 W, lighter, +3.1 pp
QN-670HJT-01 670 W 23.70% -0.240 35.5 kg +80 W, cooler, +2.9 pp
GKA210N120-670 670 W 23.67% -0.340 28.0 kg +80 W, lighter, +2.9 pp
QN-665HJT-01 665 W 23.50% -0.240 35.5 kg +75 W, cooler, +2.7 pp
GKA210N120-665 665 W 23.50% -0.340 28.0 kg +75 W, lighter, +2.7 pp

Found 497 panels of the same or similar size to this one, within ±10 mm. See them here Found 502 panels of the same or similar size to this one, within ±25 mm. See them here Found 502 panels of the same or similar size to this one, within ±50 mm. See them here Found 506 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
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.
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