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Q-Cells vs Tata Power Solar - solar panel manufacturer comparison

Q-Cells
South Korea Founded 1999 Tier 1
Read the Q-Cells review
VS
Tata Power Solar
India Founded 1989 Tier 1
Read the Tata Power Solar review
At a glance

Q-Cells has the broader catalog (89 vs 38 models). Q-Cells leads on peak efficiency at 23.20%. Tata Power Solar 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 38
Highest power
675 Wp 642 Wp
Best efficiency
23.2% 23.1%
Average efficiency
21.2% 21.5%
Bifacial share
39% 100%
Average warranty
27 yrs 28 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
Tata Power Solar

Tata Power Solar is India's largest integrated solar company. They operate in manufacturing solar modules, EPC services for solar power projects, and creating innovative solar products. The company is committed to providing access to energy, especially in remote, off-grid parts of India.

Founded
1989
Headquarters
Mumbai, Maharashtra, India
Annual capacity
4.3 GW/year
Employees
1,245
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Q-Cells Tata Power Solar
Catalog & Power
Panel Models 89+51 38
Max Power 675 W+33 W 642 W
Avg Power 468 W 580 W+112 W
Efficiency
Max Efficiency 23.20%+0.15 pp 23.05%
Avg Efficiency 21.21% 21.52%+0.30 pp
Reliability & Warranty
Avg Temp Coefficient -0.325%/°C+0.029 -0.354%/°C
Bifacial Share 35 (39%) 38 (100%)+61 pp
Avg Warranty 27.0 yrs 28.4 yrs+1.5 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

Tata Power Solar skews to higher efficiency: 5% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Tata Power Solar offers more 600W+ panels (24% of lineup)

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

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

Tata Power Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (82%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Q-Cells, branded commercially as Hanwha Q CELLS, is headquartered in Seoul, South Korea under the Hanwha Group conglomerate, with deep engineering roots in Germany where the original Q-Cells AG was founded in 1999. The company maintains Bloomberg NEF Tier 1 bankability status and operates a global manufacturing footprint that encompasses roughly 12 GW of cell capacity and 11 GW of module capacity, including the largest solar manufacturing facility in the Western Hemisphere in Dalton, Georgia, supplemented by a new vertically integrated campus in Cartersville, Georgia capable of 3.3 GW annually. Tata Power Solar is headquartered in Bengaluru, India, operating as a subsidiary of Tata Power within the broader Tata Group. It has also been rated a Tier 1 bankable manufacturer by BNEF and has scaled to over 4 GW of module production capacity and approximately 4.8 GW of cell capacity at its Tamil Nadu facility. In terms of global institutional footprint and supply chain scale, Q-Cells holds a clear advantage.

On the product side, Q-Cells is best known for its Q.PEAK DUO series, built on the company's proprietary Q.ANTUM PERC platform and targeted primarily at premium residential rooftops and mid-size commercial arrays in North America, Europe, and Australia. The company is actively expanding into TOPCon and is developing perovskite-silicon tandem technology for future mass production. Tata Power Solar serves a broader spectrum of segments domestically, producing PERC and TOPCon bifacial modules for residential rooftops, commercial installations, and large utility-scale ground-mount projects. The company led India's rooftop solar market in 2025 with roughly 19 percent of installations and has delivered utility-scale EPC projects exceeding 11.5 GWp across India.

For buyers outside India - particularly in North America or Europe - Q-Cells is the more practical default in 2025, given its established distribution networks, US-made supply chain optionality, and long track record in those markets. Tata Power Solar is the stronger choice for Indian buyers or projects requiring DCR-compliant domestic content, where its scale, integration depth, and local EPC expertise make it highly competitive.

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 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.