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Epax Solar vs Q-Cells - solar panel manufacturer comparison

Epax Solar
Germany Founded 2019
Read the Epax Solar 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
Epax Solar

Epax Solar is an owner-managed wholesaler for photovoltaic components. They reliably supply solar installers across Germany and Europe with a wide product portfolio, thanks to direct manufacturer partnerships and efficient logistics. Epax Solar is committed to clean energy generation and sustainability.

Founded
2019
Headquarters
Deggendorf, Germany
Employees
1-10
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 Epax Solar 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)

Epax Solar 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
Epax Solar all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

Epax Solar GmbH is a family-owned photovoltaic wholesaler based in Deggendorf, Bavaria, Germany. The company operates as a distributor and supply intermediary rather than a panel manufacturer - sourcing products from a network of manufacturing partners and supplying solar installers across Germany and wider Europe. Because Epax Solar does not manufacture its own modules, it does not carry a BloombergNEF Tier 1 bankability rating of its own. Q CELLS, by contrast, traces its roots to a panel manufacturer founded in Germany in 1999 and acquired in 2012 by South Korea's Hanwha Group, one of the world's largest conglomerates. Hanwha Q CELLS holds confirmed Tier 1 and BloombergNEF Top Tier Class bankability status, and the company's combined global production capacity has been reported at roughly 11.3 GW per year, including a major integrated manufacturing complex in Dalton and Cartersville, Georgia. On institutional footprint and bankability, Q CELLS is in a fundamentally different league.

Epax Solar's catalog spans a broad range of brands in the residential and light-commercial segment, with panels in approximately the 380-460 W range, though no proprietary cell technology has been confirmed by available sources. Q CELLS offers two well-documented product families: the Q.TRON series, which uses N-type TOPCon cell technology and achieves efficiencies up to roughly 22.5%, and the Q.PEAK DUO line, which relies on the company's proprietary Q.ANTUM PERC technology at somewhat lower efficiency and price points. Q.TRON targets premium residential rooftops, while Q.PEAK DUO serves standard residential and small commercial applications.

For any buyer seeking a bankable, independently verified solar panel with transparent performance data, Q CELLS is the clear recommendation. Epax Solar is a legitimate distribution channel in the German market and may be a useful procurement partner for installers, but it is not a comparable entity - comparing the two as panel manufacturers misframes what Epax Solar actually does.

Generated by Claude Sonnet · 2026-06-21

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 23 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.