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Q-Cells vs RedSolar - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
RedSolar
China Founded 2008
Read the RedSolar review
At a glance

Q-Cells has the broader catalog (89 vs 41 models). RedSolar leans bifacial (88% 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 41
Highest power
675 Wp 720 Wp
Best efficiency
23.2% 23.2%
Average efficiency
21.2% 22.4%
Bifacial share
39% 88%
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
RedSolar

Hunan Red Solar New Energy Science and Technology Co., Ltd. (RedSolar) is a state-owned high-tech enterprise incubated by the 48th Research Institute of China Electronics Technology Group Corporation (CETC), one of China's largest Fortune 500 state-owned conglomerates. The company manufactures solar cells, PV modules...

Founded
2008
Headquarters
Changsha, China
Employees
1000-2000
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells RedSolar
Catalog & Power
Panel Models 89+48 41
Max Power 675 W 720 W+45 W
Avg Power 468 W 582 W+113 W
Efficiency
Max Efficiency 23.20% 23.20%
Avg Efficiency 21.21% 22.36%+1.15 pp
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C -0.303%/°C+0.022
Bifacial Share 35 (39%) 36 (88%)+48 pp
Avg Warranty 27.0 yrs 29.4 yrs+2.4 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

RedSolar skews to higher efficiency: 10% of lineup is 23%+

Power spread
Share of each catalogue in every power band

RedSolar offers more 600W+ panels (61% of lineup)

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

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

RedSolar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (83%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Q-Cells is South Korean in origin, operating under the Hanwha Group conglomerate, with its founding history tracing to a German startup in 1999 that Hanwha acquired in 2012. The company holds confirmed BloombergNEF Tier 1 status and has expanded its manufacturing footprint significantly in the United States, with facilities in Dalton and Cartersville, Georgia contributing to a global module production capacity reported at over 11 GW annually. RedSolar, formally Hunan RedSolar New Energy Technology Co., Ltd., is a Chinese state-owned enterprise founded in 2008 and incubated by the 48th Research Institute of CETC - the China Electronics Technology Group Corporation - drawing on decades of semiconductor research. Headquartered in Hunan Province, RedSolar reports cumulative deliveries of over 30 GW of PV products and claims a commercial presence in more than 50 countries, though its BloombergNEF Tier 1 bankability status was not confirmed in available independent sources. On institutional footprint and recognized bankability in major Western project-finance markets, Qcells holds a clear advantage.

Qcells' main product families are the Q.PEAK DUO and Q.TRON lines, targeting residential and commercial rooftop installations. The Q.TRON series is built on the company's proprietary Q.ANTUM NEO technology - an advanced PERC-based platform - and reaches efficiencies up to 22.5%, while a Q.TRON AC variant integrates a microinverter for simplified installation. Qcells has also announced investment in TOPCon and perovskite-silicon tandem cell production for future product generations. According to Wood Mackenzie, the brand holds a top market-share position in both U.S. residential and commercial segments. RedSolar's catalog, organized around what it calls a "1+3+N" business matrix, spans residential, commercial, and industrial PV solutions. Specific cell-technology details for its current lineup - whether TOPCon, HJT, or PERC - were not independently confirmed in available sources, so efficiency and technology claims should be verified directly against current datasheets before any procurement decision.

For a typical buyer in 2025 - a homeowner in North America, a commercial developer in Europe, or an independent power producer seeking financeable equipment - Qcells is the more reliable default, given its confirmed bankability, broad third-party review coverage, strong warranty terms, and growing domestic U.S. manufacturing presence. RedSolar may be a competitive option for buyers in Asian or emerging markets where CETC's state-backed supply chain and pricing matter more than Western bankability credentials, but the lack of independent review data means due diligence on Tier 1 status and warranty backing should be completed on a project-by-project basis.

Generated by Claude Sonnet · 2026-06-08

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

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.