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Panasonic vs Q-Cells - solar panel manufacturer comparison

Panasonic
Japan Founded 1918
Read the Panasonic 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 25 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
25 89
Highest power
430 Wp 675 Wp
Best efficiency
22.2% 23.2%
Average efficiency
20.7% 21.2%
Bifacial share
16% 39%
Average warranty
25 yrs 27 yrs
01

The two companies

Company facts, not datasheet figures
Panasonic

Panasonic is a global leader in the development of innovative technologies and solutions for wide-ranging applications in the consumer electronics, housing, automotive, industry, communications, and energy sectors. The company was founded in 1918 by Konosuke Matsushita and has been committed to enhancing the quality...

Founded
1918
Headquarters
Kadoma, near Ōsaka, Japan
Annual capacity
1+ GW/year
Employees
9,500+
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 Panasonic Q-Cells
Catalog & Power
Panel Models 25 89+64
Max Power 430 W 675 W+245 W
Avg Power 367 W 468 W+101 W
Efficiency
Max Efficiency 22.20% 23.20%+1.00 pp
Avg Efficiency 20.68% 21.21%+0.53 pp
Reliability & Warranty
Avg Temp Coefficient -0.267%/°C+0.057 -0.325%/°C
Bifacial Share 4 (16%) 35 (39%)+23 pp
Avg Warranty 25.0 yrs 27.0 yrs+2.0 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)

Panasonic cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>HJT</strong> (88%)

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
05

Written summary

Checking cache...

Panasonic is a Japanese electronics conglomerate founded in 1918 and headquartered in Osaka, which spent decades building a reputation in solar around its heterojunction (HJT) EverVolt panels - praised for efficiency ratings above 22% and a low temperature coefficient. Crucially, however, Panasonic announced on April 28, 2025 that it was exiting the solar and battery storage business entirely, ending all new panel production and sales. It had already transferred manufacturing to OEM partner REC Group in 2021, and its residential installation share had slid from roughly 35% in 2020 to around 6% by 2024, according to reporting by pv-magazine and CleanTechnica. Existing warranty obligations are being honored, but Panasonic panels are no longer available for new projects. Q-Cells - formally Hanwha Q CELLS - traces its roots to a German company founded in 1999 and acquired by South Korea's Hanwha Group in 2012. It holds a consistent BloombergNEF Tier 1 bankability rating and was named an S&P Global 2025 Tier 1 Cleantech company. The company operates manufacturing at significant scale, with facilities in Cartersville, Georgia anchoring a combined US capacity reportedly above 8 GW, giving it strong domestic-content credentials under the Inflation Reduction Act. Q-Cells carries the stronger active institutional footprint of the two.

Q-Cells built its product identity around Q.ANTUM, a proprietary PERC-based cell platform incorporating Anti-LeTID, Anti-PID, and Hot-Spot Protect features to reduce real-world degradation. Its current flagship residential series, the Q.TRON G2, uses the Q.ANTUM NEO platform with TOPCon cell architecture and pushes efficiencies above 22%, closing the gap that once separated its PERC modules from HJT competitors. The portfolio spans residential rooftop, commercial flat-roof, and utility-scale applications at mid-market pricing, and SolarReviews ranked Q-Cells among the top three solar panel manufacturers for 2025.

For any buyer planning a new installation today, the comparison is effectively settled by Panasonic's market exit. Panasonic's EverVolt technology was genuinely competitive - arguably best-in-class on temperature performance and warranty depth - but no new units are available and no manufacturing roadmap exists. Q-Cells is the active, bankable, and widely distributed choice, particularly well-positioned in North America given its domestic manufacturing footprint and continued product development.

Generated by Claude Sonnet · 2026-06-17

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 3 Panasonic offers · 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.