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Q-Cells vs Renewsys - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
Renewsys
India Founded 2011 Tier 1
Read the Renewsys review
At a glance

Q-Cells has the broader catalog (89 vs 45 models). Renewsys leads on peak efficiency at 23.64%. Renewsys leans bifacial (100% 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 45
Highest power
675 Wp 650 Wp
Best efficiency
23.2% 23.6%
Average efficiency
21.2% 22.6%
Bifacial share
39% 100%
Average warranty
27 yrs 30 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
Renewsys

RenewSys is the first integrated manufacturer of Solar PV Modules and its key components - Encapsulants, Backsheets, and Solar PV Cells. Established in 2012, RenewSys is the renewable energy arm of the ENPEE Group, a diversified global conglomerate. They have manufacturing facilities in Hyderabad and Bengaluru.

Founded
2011
Headquarters
Mumbai, India
Annual capacity
2.5 GW/year
Employees
1,071
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells Renewsys
Catalog & Power
Panel Models 89+44 45
Max Power 675 W+25 W 650 W
Avg Power 468 W 542 W+74 W
Efficiency
Max Efficiency 23.20% 23.64%+0.44 pp
Avg Efficiency 21.21% 22.57%+1.35 pp
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C -0.294%/°C+0.031
Bifacial Share 35 (39%) 45 (100%)+61 pp
Avg Warranty 27.0 yrs 30.0 yrs+3.0 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

Renewsys skews to higher efficiency: 24% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Renewsys offers more 600W+ panels (36% of lineup)

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

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

Renewsys cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (100%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Q-Cells is the consumer-facing brand of Hanwha Q CELLS, the solar division of South Korea's Hanwha Group conglomerate. The underlying Q-Cells brand was originally founded in Germany in 1999 and acquired by Hanwha in 2012, giving it a lineage that spans more than two decades in module manufacturing. Hanwha Q CELLS holds BloombergNEF Tier 1 status and has announced total module shipments anticipated to exceed 9 GW in 2025, with production facilities spanning South Korea, Malaysia, and a 3.3 GW factory in Cartersville, Georgia, that supports IRA domestic-content eligibility in the United States. RenewSys India, by contrast, was founded in 2011 and is headquartered in Mumbai. It operates three manufacturing plants in Hyderabad, Bengaluru, and Patalganga, with a total installed module manufacturing capacity of 5.6 GW. RenewSys is noted as India's first vertically integrated solar PV manufacturer, producing not only modules but also encapsulants, backsheets, and cells in-house. The company has appeared on Tier 1 solar module lists and earned an EcoVadis Platinum sustainability rating in May 2025. On raw institutional footprint - global distribution, IRA compliance, and decades of bankability track record - Q-Cells holds a clear advantage.

Q-Cells built its reputation on its proprietary Q.ANTUM cell architecture, a PERC-based technology enhanced with passivation layers and anti-LID treatments, and its panels are widely deployed in premium residential rooftop and mid-scale commercial applications across North America, Europe, and Australia, with panel efficiencies confirmed in the 20 to 22.5 percent range for mainstream lines and up to roughly 23.7 percent in newer premium variants. The company has announced plans to expand into TOPCon and perovskite-silicon tandem production as next steps. RenewSys offers its DESERV module family, which spans standard Mono Crystalline and Mono PERC formats as well as N-type TOPCon bifacial modules - including a 600 Wp bifacial TOPCon module with confirmed front-side efficiency around 23.26 percent unveiled in 2023. RenewSys targets domestic Indian utility-scale and commercial rooftop buyers, and its bifacial large-format portfolio makes it well suited for ground-mount projects where rear-side gain can be captured.

For buyers outside South Asia, Q-Cells is the more straightforward default in 2025: its global supply chain, established installer network, US domestic manufacturing, and long warranty track record reduce project-finance friction considerably. For developers and EPCs working within India or looking for competitively priced utility-scale bifacial TOPCon modules with local supply-chain advantages, RenewSys is a credible alternative - particularly given India's domestic content requirements and the company's vertical integration. The two brands serve overlapping but distinct primary markets rather than being direct substitutes in most procurement contexts.

Generated by Claude Sonnet · 2026-06-16

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 · See 5 Renewsys 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.