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Q-Cells vs WINAICO - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
WINAICO
Taiwan Founded 2003 Tier 1
Read the WINAICO review
At a glance

Q-Cells has the broader catalog (89 vs 44 models). WINAICO leads on peak efficiency at 25.00%. WINAICO leans bifacial (77% 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 44
Highest power
675 Wp 675 Wp
Best efficiency
23.2% 25.0%
Average efficiency
21.2% 23.0%
Bifacial share
39% 77%
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
WINAICO

WINAICO is a Taiwanese manufacturer of high-performance crystalline silicon photovoltaic modules, operating as an independent subsidiary of Win Win Precision Technology. The company focuses on premium-quality solar panels backed by long warranty periods and has built a strong reputation in markets such as Germany...

Founded
2003
Headquarters
Hsinchu, Taiwan
Annual capacity
0.1-1 GW/year
Employees
100-500
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells WINAICO
Catalog & Power
Panel Models 89+45 44
Max Power 675 W 675 W
Avg Power 468 W 491 W+22 W
Efficiency
Max Efficiency 23.20% 25.00%+1.80 pp
Avg Efficiency 21.21% 22.99%+1.77 pp
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C -0.284%/°C+0.041
Bifacial Share 35 (39%) 34 (77%)+38 pp
Avg Warranty 27.0 yrs 28.9 yrs+1.9 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

WINAICO skews to higher efficiency: 59% 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: PERC (43%)

WINAICO cell technology
Share of their models by cell architecture

Dominant cell tech: Back Contact (41%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Q-Cells is the brand of Hanwha Q Cells, a South Korean-headquartered company (part of the Hanwha Group) with a major manufacturing base in Dalton, Georgia, USA, which is described as the largest solar module factory in the Western Hemisphere; a further integrated Cartersville, Georgia facility was slated for completion around early 2026. Q-Cells has been named by S&P Global as a 2025 Tier 1 Cleantech Company and has previously carried Bloomberg New Energy Finance Tier 1 bankability status, reflecting its scale and financial track record with project lenders. WINAICO, by contrast, is a Taiwanese manufacturer founded in 2008 that has also been recognized by BloombergNEF as a Tier 1 crystalline module maker in past PV Market Outlook reports, though some installer reviews describe it as a small, family-owned company with comparatively limited annual output. Overall, Q-Cells has the stronger institutional footprint, backed by Hanwha's industrial scale, large US manufacturing investment, and broader market recognition, while WINAICO operates as a smaller, specialty player with a narrower but loyal following, particularly in markets like Australia.

Q-Cells' current flagship line, the Q.TRON series built on its Q.ANTUM NEO platform, uses N-type TOPCon cells with efficiencies around 22.5 percent and 25-year product and performance warranties; it is generally positioned as a premium-to-mainstream choice for residential and commercial rooftops, with its US-made panels also appealing to buyers seeking domestic content for incentive purposes. WINAICO's product range has historically centered on mono PERC modules in the 360-410 W class with efficiencies in the 19.6 to 20.9 percent range, and the company has also announced a newer heterojunction (HJT) module rated near 23 percent efficiency, suggesting a shift toward higher-efficiency cell technology. WINAICO panels are typically marketed as a quality-focused, non-Chinese alternative for residential rooftops in markets like Australia and Europe, often valued for build quality and warranty service rather than scale or price.

For a typical buyer in 2025, Q-Cells is generally the safer default: it combines confirmed Tier 1 or equivalent bankability recognition, a larger and more diversified manufacturing base, and a current TOPCon product line with strong, independently reviewed performance data from sources like EnergySage and SolarReviews. WINAICO remains a credible, well-regarded option, especially where its specific regional presence and installer relationships are strong, but its smaller scale and less consistently documented independent testing make it a more niche choice. The two brands are not simply interchangeable; the decision should hinge on regional availability, installer support, and whether the buyer prioritizes large-scale industrial backing (Q-Cells) or a boutique, quality-oriented alternative (WINAICO).

Generated by Claude Sonnet 5 · 2026-10-22

06

Other brand comparisons

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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 18 Q-Cells offers · See 5 WINAICO 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.