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CSUN vs Q-Cells - solar panel manufacturer comparison

CSUN
China Founded 2004 Tier 1
Read the CSUN review
VS
Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
At a glance

Q-Cells has the broader catalog (89 vs 35 models). Q-Cells leads on peak efficiency at 23.20%. Q-Cells leans bifacial (39% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
35 89
Highest power
670 Wp 675 Wp
Best efficiency
21.6% 23.2%
Average efficiency
20.2% 21.2%
Bifacial share
0% 39%
Average warranty
25 yrs 27 yrs
01

The two companies

Company facts, not datasheet figures
CSUN

China Sunergy (CSUN) is a Chinese manufacturer of solar cells and photovoltaic modules headquartered in Nanjing, Jiangsu. The company produces high-efficiency mono- and multicrystalline solar cells and modules from production facilities in China and, historically, Turkey. It was formerly listed on NASDAQ and was...

Founded
2004
Headquarters
Nanjing, China
Annual capacity
2-3 GW/year
Employees
1000-5000
Tier 1 bankable
Yes
Q-Cells

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 leader in technology innovations. As an...

Founded
1999
Headquarters
Seoul, South Korea
Annual capacity
11.2 GW/year
Employees
2000+
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric CSUN Q-Cells
Catalog & Power
Panel Models 35 89+54
Max Power 670 W 675 W+5 W
Avg Power 478 W+10 W 468 W
Efficiency
Max Efficiency 21.60% 23.20%+1.60 pp
Avg Efficiency 20.15% 21.21%+1.06 pp
Reliability & Warranty
Avg Temp Coefficient -0.366%/°C -0.325%/°C+0.041
Bifacial Share 0 (0%) 35 (39%)+39 pp
Avg Warranty 25.0 yrs 27.0 yrs+2.0 yr

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Q-Cells skews to higher efficiency: 2% of lineup is 23%+

Power spread
Share of each catalogue in every power band

CSUN offers more 600W+ panels (20% of lineup)

CSUN cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (94%)

Q-Cells cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (43%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...
06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 1 CSUN offer · See 28 Q-Cells offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.