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Q-SUN Solar Brand review

QNN182-HG585-72

585 Wp TOPCon Bifacial
ComparePV verdict

Solid all-round for its segment

Rank 4,188 of 14,005
Compare panels Datasheet PDF
Power (Wp)
585
Typical for its class
Efficiency (%)
22.60
Typical · median 22.44%
Density (Wp/m²)
226.4
Typical · median 224.4
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
31.4
Typical · median 31.2 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Q-SUN Solar QNN182-HG-72 series represents a new generation of modules based on advanced N-type TOPCon cell technology, which effectively eliminates the problem of light-induced degradation and provides significantly higher efficiency compared to traditional P-type solutions. The use of a durable Double Glass construction makes the panels exceptionally resistant to extreme weather conditions, such as high humidity, ammonia exposure, or heavy mechanical loads, which directly translates into an extended lifespan of the entire installation. Thanks to the full utilization of bifacial technology, these modules effectively generate additional energy from reflected radiation reaching the rear side of the cells. It is an ideal solution for projects where the priority is maximizing yields per unit area, especially when mounted on bright surfaces or ground-mounted structures. An exceptionally low temperature coefficient guarantees stable power production even on very hot days, clearly distinguishing this series from standard components that lose power at high temperatures. These modules are mainly dedicated to large-scale solar farms and demanding commercial investments aiming to optimize the LCOE index. By choosing this solution, investors receive equipment with the highest resistance to the PID effect, optimized for stable operation over decades, ensuring the financial security of every investment.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.60% 22.44% Typical 3,658
Power density 226.4 224.4 Typical 3,631
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 53.7 53.8 Typical 7,696
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 2 caution
Best for

Utility-scale and hot-climate.

What owners get
High efficiency up to 22.6%

Thanks to N-type TOPCon cell technology, the series reaches efficiency of 21.9-22.6%, placing it on par with top competitors such as Hanersun Hitouch 5N (22.65%) and clearly above typical PERC modules.

Bifacial technology boosts yield

Dual-side energy generation from the rear side of the cells enables additional output, especially when installed on light-colored ground or ground-mount structures, directly improving the LCOE for utility-scale farms.

Double Glass build improves durability

The dual-glass design increases resistance to humidity, ammonia, and mechanical loads, resulting in a longer module lifespan in harsh operating conditions compared to standard frame-and-backsheet designs.

High unit power up to 585 Wp

Power output in the 565-585 Wp range matches the upper end of the 72-cell bifacial module segment, comparable to the Risen RSM144-9-560-585BNDG and Hanersun HiTouch 5N.

30-year power warranty

The manufacturer offers a 12-year product warranty and a 30-year power warranty, a premium standard in the TOPCon segment that gives investors long-term production stability.

Trade-offs
Series discontinued

The QNN182-HG-72 series has been discontinued, meaning limited availability of spare parts, warranty service, and difficulty sourcing identical modules for future system expansion.

Manufacturer not Tier-1

Q-SUN Solar (founded 2014, China) is not on Tier-1 bankable manufacturer lists, which may complicate project financing and insurance compared to established brands like Trina or JA Solar.

Notes from the database
  • Efficiency of 22.6% matches the TOPCon 550-600W median
  • At 226.4 W/m² power density, roof space requirements are typical for TOPCon 550-600W panels
  • At -0.30%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • In the top 26% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 585 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.60 % Typical Segment median 22.44%
Vmpp · Impp 42.58 V · 13.74 A Operating point at max power
Voc · Isc 51.21 V · 14.57 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 31.4 kg Typical Typical · median 31.2 kg
Cells 144 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 511 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Q-SUN Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 585 Wp appear here. The rest cover the whole series.

Linear Performance Warranty Linear Performance Warranty Whole series P-V Curve (Power-Voltage) P-V Curve (Power-Voltage) Whole series

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
-0.300 %/°C against a segment median of -0.290
-

Alternatives

All Q-SUN Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Q-SUN Solar QNN182-HG585-72 585 W 22.60% -0.300 31.4 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +2.2 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +2.0 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +50 W, lighter, +2.0 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +45 W, cooler, +1.8 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg Cooler, 15 kg lighter, +1.8 pp
QNM182-HG530-72 530 W 20.50% -0.310 31.4 kg -55 W, hotter, -2.1 pp
QNM182-HS535-72 535 W 20.70% -0.320 28.3 kg -50 W, -1.9 pp, -5 yr warranty
QNM182-HS540-72 540 W 20.90% -0.320 28.3 kg -45 W, -1.7 pp, -5 yr warranty
QN-540HT 540 W 20.80% -0.340 26.0 kg Lighter, -1.8 pp, -5 yr warranty
QNM182-HS545-72 545 W 21.10% -0.320 28.3 kg -40 W, -1.5 pp, -5 yr warranty
QN-545HT 545 W 21.10% -0.340 26.0 kg Lighter, -1.5 pp, -5 yr warranty
QNM182-HS550-72 550 W 21.30% -0.320 28.3 kg -35 W, -1.3 pp, -5 yr warranty
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +65 W, lighter, +2.6 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +60 W, lighter, +2.4 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +55 W, lighter, +2.2 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2542 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Q-SUN Solar QNN182-HG-72 series still available for purchase?
The Q-SUN Solar QNN182-HG-72 series has been discontinued and is no longer available as a new product. If you need to expand an existing installation using these modules, contact distributors to check warehouse stock. For new projects, we recommend selecting a currently active TOPCon module line from a manufacturer with an active service and warranty network.
What warranty does the Q-SUN Solar QNN182-HG-72 come with?
The QNN182-HG-72 series carries a 12-year product warranty covering material and manufacturing defects, along with a 30-year linear power output warranty guaranteeing stable energy yield over three decades of operation. Investors should note that Q-SUN Solar is not listed as a Tier 1 manufacturer, a factor worth considering when assessing the long-term financial risk of the investment.
What is TOPCon cell technology used in the QNN182-HG-72 and is it worth the premium?
TOPCon (Tunnel Oxide Passivated Contact) relies on N-type cells that eliminate LID (Light-Induced Degradation) common in legacy P-type modules. The result is higher initial efficiency and a slower power decline over the years. In the QNN182-HG-72, this translates to a maximum output of 585 Wp and an exceptionally low temperature coefficient, meaning smaller power losses on hot days compared to standard PERC modules.
How does the bifacial feature work in the QNN182-HG-72 and when does it pay off?
Bifacial technology allows the QNN182-HG-72 to generate electricity from both the front and rear surfaces by capturing light reflected from the ground. The highest bifacial gain is achieved on light-colored surfaces such as sand, concrete, or white membranes, with adequate ground clearance. On utility-scale PV farms, bifacial modules can increase annual energy yield by 5–15% compared to a monofacial module of the same rated power.
Does the Double Glass construction in the QNN182-HG-72 genuinely extend system lifespan?
Yes, dual-glass lamination removes the backsheet as a potential failure point, significantly improving resistance to humidity, ammonia from fertilizers, and mechanical loads from snow and wind. This is especially valuable in agrivoltaic and ground-mounted installations exposed to harsh conditions. The glass rear panel also limits moisture ingress, directly reducing the risk of cell degradation throughout the module's service life.
What projects are the Q-SUN Solar QNN182-HG-72 modules designed for — can they be used on a residential roof?
The QNN182-HG-72, rated at 585 Wp in a 72-cell format, is engineered for utility-scale PV farms and commercial projects focused on LCOE optimization. The large dimensions and weight typical of 72-cell modules make them impractical for residential rooftops, where smaller 60- or 66-cell modules are the standard choice. For residential prosumer installations, a smaller, lighter module is strongly recommended.
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