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DAH vs Q-Cells - solar panel manufacturer comparison

DAH
China Founded 2009 Tier 1
Read the DAH 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 0 models). 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
0 89
Highest power
0 Wp 675 Wp
Best efficiency
- 23.2%
Average efficiency
- 21.2%
Bifacial share
0% 39%
Average warranty
- 27 yrs
01

The two companies

Company facts, not datasheet figures
DAH
Founded
2009
Headquarters
Hefei, China
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 DAH Q-Cells
Catalog & Power
Panel Models 0 89+89
Max Power 0 W 675 W+675 W
Avg Power 0 W 468 W+468 W
Efficiency
Max Efficiency - 23.20%
Avg Efficiency - 21.21%
Reliability & Warranty
Avg Temp Coefficient - -0.325%/°C
Bifacial Share 0 (0%) 35 (39%)+39 pp
Avg Warranty - 27.0 yrs

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)

DAH cell technology
Share of their models by cell architecture
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
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

DAH Solar is a Chinese manufacturer headquartered in Hefei, Anhui, that has built a reputation around its proprietary Full-Screen module design - a frameless, frameless-front approach that reduces dust accumulation and improves bifacial yield. The company has maintained a consistent position on BloombergNEF's Tier 1 PV module list throughout 2025, including Q1, Q3, and Q4 rankings, and has targeted a combined cell and panel production capacity in the multi-gigawatt range. Q-Cells operates under South Korea's Hanwha Group, which acquired the original German brand Q-Cells SE (founded 1999 in Thalheim, Germany) in 2012; the technology headquarters remains in Thalheim while the global executive center is in Seoul. Q-Cells also holds BloombergNEF Tier 1 status and has substantially expanded its manufacturing footprint in the United States, with its Dalton, Georgia facility scaled to approximately 5.1 GW and a new Cartersville plant adding roughly 3.3 GW, making it the largest solar manufacturing presence in the Western Hemisphere. On institutional footprint - brand recognition in regulated Western markets, domestic US manufacturing, and supply-chain depth - Q-Cells holds the stronger position.

DAH Solar's flagship product line centers on its Full-Screen TOPCon modules, with the latest V6 series reaching 650 W and an efficiency of around 24%, aimed at both residential rooftops where the clean frameless aesthetic is valued and commercial ground-mount projects seeking high bifacial output. Q-Cells competes primarily with its Q.ANTUM NEO platform, an N-type TOPCon-based technology that pushes efficiencies toward 22.5% in its Q.TRON G2 residential series, while its larger format modules serve utility-scale and commercial segments. Q-Cells is generally positioned as a premium-value option - priced meaningfully below ultra-premium brands like Maxeon but above entry-level Chinese competitors - and SolarReviews ranked it third among all manufacturers for 2025. DAH Solar typically occupies a cost-competitive niche while offering differentiated technology through its Full-Screen IP.

For a typical buyer in 2025, Q-Cells is the lower-risk default in North American and Western European residential markets: its domestic US production insulates buyers from tariff exposure, its 25-year product warranty is well-documented, and its installer network is broad. DAH Solar is a credible alternative - particularly where price sensitivity is higher or where the Full-Screen bifacial design suits a specific roof or ground-mount configuration - but buyers outside established DAH distribution regions should verify local warranty support before committing.

Generated by Claude Sonnet · 2026-05-25

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.