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Q-Cells vs Selfa - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
Selfa
Poland Founded 1992
Read the Selfa review
At a glance

Q-Cells has the broader catalog (89 vs 34 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
89 34
Highest power
675 Wp 550 Wp
Best efficiency
23.2% 22.6%
Average efficiency
21.2% 20.5%
Bifacial share
39% 9%
Average warranty
27 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
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
Selfa
Founded
1992
Headquarters
Bydgoszcz, Poland
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells Selfa
Catalog & Power
Panel Models 89+55 34
Max Power 675 W+125 W 550 W
Avg Power 468 W+65 W 404 W
Efficiency
Max Efficiency 23.20%+0.60 pp 22.60%
Avg Efficiency 21.21%+0.73 pp 20.48%
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C+0.024 -0.348%/°C
Bifacial Share 35 (39%)+31 pp 3 (9%)
Avg Warranty 27.0 yrs 27.8 yrs+0.8 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

Q-Cells offers more 600W+ panels (19% of lineup)

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

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

Selfa cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (74%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Q-Cells, originally founded in 1999 in Germany and acquired by South Korean industrial conglomerate Hanwha Group in 2012, is one of the most recognized solar panel brands globally. Operating as Hanwha Q CELLS, the company holds BloombergNEF Tier 1 bankability status and produces modules at a scale measured in multiple gigawatts annually, with its U.S. facilities in Dalton and Cartersville, Georgia alone representing one of the largest solar manufacturing footprints in the Western Hemisphere. Selfa, by contrast, is a Polish manufacturer with roots going back to 1932 as an electrical and heating products company, entering photovoltaics in 2004 and launching an automated module production line in 2012. Selfa holds European certifications from VDE and KIWA Cermet Italia but does not appear on BloombergNEF Tier 1 lists, reflecting its considerably smaller regional scale. On institutional footprint and global bankability, Q-Cells holds a decisive advantage.

Q-Cells serves residential, commercial, and utility-scale customers through product families including the Q.PEAK DUO and Q.TRON series, with the Q.PEAK DUO line built on proprietary Q.ANTUM DUO Z cell technology incorporating TOPCon. Panel efficiencies in the Q.PEAK DUO range reach up to roughly 22.5% according to independent review sources, and the company backs its modules with 25-year product warranties. Selfa focuses primarily on the Polish and Central European residential and light commercial market, offering standard and premium monocrystalline modules with the PREMIUM series reaching 550 W output, and a proprietary SELF-C self-cleaning surface coating. Independent efficiency benchmarks and confirmed cell technology details for Selfa's current lineup were not surfaced by available review sources.

For most buyers outside Central Europe - particularly those undertaking commercial or utility-scale projects where long-term warranty enforcement and financial backing are priorities - Q-Cells is the clearer default choice. Selfa represents a credible option for Polish residential buyers who value proximity to a local manufacturer and domestic service infrastructure, but it is not a direct substitute where bankability or independently benchmarked performance data are required.

Generated by Claude Sonnet · 2026-06-03

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 25 Q-Cells offers · See 7 Selfa 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.