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Manufacturer review

Q-Cells panels, read off the datasheets

Qcells is a renowned global provider of complete energy solutions, specializing in solar cells and modules, energy storage solutions, downstream project business, and energy retail. The company has a strong heritage dating back to its foundation in Germany and has become a...

Everything below is computed from those 89 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Q-Cells does not publish a figure, it is left out of the average rather than assumed.

Panels
89
models in the database
Average efficiency
21.2%
across the catalogue
Best efficiency
23.2%
their strongest module
Power range
335-675 Wp
smallest to largest
Bifacial share
39%
35 dual-sided models
Average warranty
27 years
guaranteed output term
01

The top of the range

The leaders of Q-Cells's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.

Most efficient module efficiency
1 Q.TRON M-G3R.12+ / BFG 515 Monocrystalline bifacial 515 Wp 23.2% 2 Q.TRON XL-G2.3 / BFG 645 Monocrystalline bifacial 645 Wp 23.1% 3 Q.TRON M-G3R.12+ / BFG 510 Monocrystalline bifacial 510 Wp 22.9% 4 Q.TRON XL-G2.3 / BFG 640 Monocrystalline bifacial 640 Wp 22.9% 5 Q.TRON XL-G2.3 / BFG 635 Monocrystalline bifacial 635 Wp 22.7%
Sort the whole catalogue by efficiency
Highest power nameplate output
1 Q.PEAK DUO ML-G12S.3 / BFG 675 Monocrystalline bifacial 21.7% 675 Wp 2 Q.PEAK DUO ML-G12S.3 / BFG 670 Monocrystalline bifacial 21.6% 670 Wp 3 Q.PEAK DUO ML-G12S.3 / BFG 665 Monocrystalline bifacial 21.4% 665 Wp 4 Q.PEAK DUO ML-G12S.3 / BFG 660 Monocrystalline bifacial 21.2% 660 Wp 5 Q.PEAK DUO ML-G12S.3 / BFG 655 Monocrystalline bifacial 21.1% 655 Wp
Sort the whole catalogue by power
02

By what the array is for

Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.

For a house roof 380-460 Wp
1 Q.TRON BLK M-G2.H1+/AC (Power class 440W) Monocrystalline 440 Wp 22.5% 2 Q.TRON BLK M-G2+ 440 Monocrystalline 440 Wp 22.5% 3 Q.TRON S-G3R.12+ / BFG 450 Monocrystalline bifacial 450 Wp 22.5% 4 Q.TRON BLK M-G2.D1+/AC (Power class 435W) Monocrystalline 435 Wp 22.3% 5 Q.TRON BLK M-G2+ 435 Monocrystalline 435 Wp 22.3%
For a commercial array 500 Wp and up
1 Q.PEAK DUO ML-G12S.3 / BFG 675 Monocrystalline bifacial 675 Wp 21.7% 2 Q.PEAK DUO ML-G12S.3 / BFG 670 Monocrystalline bifacial 670 Wp 21.6% 3 Q.PEAK DUO ML-G12S.3 / BFG 665 Monocrystalline bifacial 665 Wp 21.4% 4 Q.PEAK DUO ML-G12S.3 / BFG 660 Monocrystalline bifacial 660 Wp 21.2% 5 Q.PEAK DUO ML-G12S.3 / BFG 655 Monocrystalline bifacial 655 Wp 21.1%
For a ground mount dual-sided
1 Q.TRON M-G3R.12+ / BFG 515 Monocrystalline bifacial 515 Wp 23.2% 2 Q.TRON XL-G2.3 / BFG 645 Monocrystalline bifacial 645 Wp 23.1% 3 Q.TRON M-G3R.12+ / BFG 510 Monocrystalline bifacial 510 Wp 22.9% 4 Q.TRON XL-G2.3 / BFG 640 Monocrystalline bifacial 640 Wp 22.9% 5 Q.TRON XL-G2.3 / BFG 635 Monocrystalline bifacial 635 Wp 22.7%
03

What the catalogue is made of

Cell technology across the market

Shares are of the 89 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.

Cell technology share of the catalogue
PERC 42.7% 38 N-type 25.8% 23 Unknown 22.5% 20 TOPCon 9.0% 8
PERC accounts for 42.7% of the catalogue - 38 of 89 modules.
Efficiency spread share of the catalogue
<20% 7.9% 7 20-21% 32.6% 29 21-22% 33.7% 30 22-23% 23.6% 21 23%+ 2.2% 2
04

Strengths and gaps

Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.

What this catalogue is good at
  • Solid portfolio of 89 panels
  • Tier 1 bankable manufacturer - recognized by major financial institutions
  • High-efficiency panels available (up to 23.2%)
  • Strong warranty coverage averaging 27 years
  • High-power panels available (up to 675W) for commercial applications
  • Established manufacturer with 27+ years of experience
  • Large-scale production capacity of 11.2 GW
Where it is thin
  • Limited adoption of latest cell technologies (TOPCon/HJT)
05

In short

Q-Cells: Q-Cells is an industry leader in efficiency, offering 89 panels suitable for both residential and commercial buyers. With an average efficiency of 21.2% and top models reaching 23.2%, their panels deliver competitive performance. As a Tier 1 bankable manufacturer, they offer strong financial backing and long-term reliability.
Common questions
Is Q-Cells a good solar panel manufacturer?
Q-Cells offers 89 solar panel models with an average efficiency of 21.2%. They are a Tier 1 bankable manufacturer, recognized by major financial institutions for reliability. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Q-Cells make?
Q-Cells manufactures panels ranging from 335W to 675W, covering both residential and commercial applications. Their portfolio includes PERC (43%), N-type (26%), Unknown (22%) cell technologies.
How efficient are Q-Cells solar panels?
Q-Cells panels have an average efficiency of 21.2%, with their most efficient model reaching 23.2%. This puts them among the industry leaders in the current market.
Does Q-Cells make bifacial solar panels?
Yes, Q-Cells offers 35 bifacial panels, representing 39% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Q-Cells offer on their solar panels?
Q-Cells panels come with an average performance warranty of 27 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.
Are Q-Cells panels good for residential use?
Q-Cells offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.
06

Compared with

Build your own

A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.

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