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Q-Cells vs Seraphim - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
Seraphim
China Founded 2011 Tier 1
Read the Seraphim review
At a glance

Seraphim has the broader catalog (160 vs 89 models). Seraphim leads on peak efficiency at 23.50%. Seraphim leans bifacial (69% 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
89 160
Highest power
675 Wp 730 Wp
Best efficiency
23.2% 23.5%
Average efficiency
21.2% 21.8%
Bifacial share
39% 69%
Average warranty
27 yrs 29 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
Seraphim

Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...

Founded
2011
Headquarters
Changzhou, China
Annual capacity
13 GW/year
Employees
1001-5000
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells Seraphim
Catalog & Power
Panel Models 89 160+71
Max Power 675 W 730 W+55 W
Avg Power 468 W 549 W+81 W
Efficiency
Max Efficiency 23.20% 23.50%+0.30 pp
Avg Efficiency 21.21% 21.82%+0.61 pp
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C -0.316%/°C+0.008
Bifacial Share 35 (39%) 111 (69%)+30 pp
Avg Warranty 27.0 yrs 28.8 yrs+1.8 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

Seraphim skews to higher efficiency: 12% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Seraphim offers more 600W+ panels (35% of lineup)

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

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

Seraphim cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (52%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

I have enough sourced information now.

Q-Cells is a South Korea headquartered manufacturer, operating under parent company Hanwha Group, tracing its roots to a 1999 founding in Thalheim, Germany, before Hanwha acquired the insolvent original company in 2012. It carries BloombergNEF Tier 1 bankability status and reports around 11.2 GW of global annual module production capacity as of 2025. Seraphim, by contrast, is a Chinese manufacturer founded in 2011 and headquartered in Changzhou, Jiangsu, with roughly 13 GW of production capacity and a claimed 11 consecutive years of BNEF Tier 1 recognition. Q-Cells has the deeper institutional footprint in Western markets, holding a long-standing number one position in US residential and commercial solar, while Seraphim's presence is more globally distributed but less dominant in any single market.

Q-Cells' flagship Q.TRON line uses monocrystalline Q.ANTUM NEO N-type TOPCon half-cell technology and is positioned primarily for premium residential and commercial rooftops, especially in North America and Europe, alongside utility-scale offerings. Seraphim's catalog spans the Sable series (TOPCon), the Hydra series (heterojunction, HJT), the Nebula series, and flexible modules, giving it a broader spread across budget-to-midrange commercial rooftops and utility-scale ground mounts, with HJT development signaling ambition on the higher-efficiency end.

For a typical buyer in 2025, Q-Cells is generally the safer default in the US and European residential market, given its longer track record of consecutive market leadership and strong local brand recognition, which can matter for financing and resale value. Seraphim is a reasonable choice for larger commercial or utility-scale projects where competitive TOPCon or HJT capacity and cost matter more than brand pedigree, though buyers should independently verify current Tier 1 listings and warranty terms before purchase, since both firms' rankings shift from quarter to quarter.

Generated by Claude Sonnet 5 · 2026-08-22

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 4 Seraphim 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.