---
title: "Q-Cells vs Tata Power Solar - Brand Comparison | ComparePV"
description: "Compare Q-Cells vs Tata Power Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/q-cells-vs-tata-power-solar"
---

# Q-Cells vs Tata Power Solar

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).


## The two companies


| Attribute | Q-Cells | Tata Power Solar |
| --- | --- | --- |
| Country | South Korea | India |
| Headquarters | Seoul | Mumbai, Maharashtra |
| Founded | 1999 | 1989 |
| Employees | 2000+ | 1,245 |
| Annual capacity | 11.2 GW/year | 4.3 GW/year |
| Tier 1 | yes | yes |
| Listed | NASDAQ: HQCL | NSE: TATAPOWER |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://www.tatapower.com](https://www.tatapower.com) |

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...

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.


## Catalog & Power


| Measure | Q-Cells | Tata Power Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 38 | +51 |
| Max Power | 675 W | 642 W | +33 W |
| Avg Power | 468 W | 580 W | +112 W |


## Efficiency


| Measure | Q-Cells | Tata Power Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 23.05% | +0.15 pp |
| Avg Efficiency | 21.21% | 21.52% | +0.30 pp |


## Reliability & Warranty


| Measure | Q-Cells | Tata Power Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.354%/°C | +0.029 |
| Bifacial Share | 35 (39%) | 38 (100%) | +61 pp |
| Avg Warranty | 27.0 yrs | 28.4 yrs | +1.5 yr |


## Efficiency distribution

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


| Efficiency band | Q-Cells | Tata Power Solar |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 0 |
| 20-21% | 29 (32.6%) | 12 (31.6%) |
| 21-22% | 30 (33.7%) | 14 (36.8%) |
| 22-23% | 21 (23.6%) | 10 (26.3%) |
| 23%+ | 2 (2.2%) | 2 (5.3%) |


## Power distribution

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


| Power band | Q-Cells | Tata Power Solar |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 0 |
| 400-499W | 41 (46.1%) | 0 |
| 500-599W | 11 (12.4%) | 29 (76.3%) |
| 600-699W | 17 (19.1%) | 9 (23.7%) |


## Cell technology

Dominant cell tech: **PERC** (43%)

Dominant cell tech: **PERC** (82%)


| Technology | Q-Cells | Tata Power Solar |
| --- | --- | --- |
| PERC | 38 (42.7%) | 31 (81.6%) |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 0 |
| TOPCon | 8 (9.0%) | 7 (18.4%) |


## Top panels, Q-Cells


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-675) | 675 | 21.7 | -0.340 | Monocrystalline |
| 2 | [Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 3 | [Q.PEAK DUO ML-G12S.3 / BFG 665](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 4 | [Q.PEAK DUO ML-G12S.3 / BFG 660](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 5 | [Q.PEAK DUO ML-G12S.3 / BFG 655](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 6 | [Q.PEAK DUO ML-G12S.3 / BFG 650](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 7 | [Q.TRON XL-G2.3 / BFG 645](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-645) | 645 | 23.1 | -0.290 | Monocrystalline |
| 8 | [Q.TRON XL-G2.3 / BFG 640](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-640) | 640 | 22.9 | -0.290 | Monocrystalline |
| 9 | [Q.TRON XL-G2.3 / BFG 635](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-635) | 635 | 22.7 | -0.300 | Monocrystalline |
| 10 | [Q.TRON XL-G2.3 / BFG 630](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-630) | 630 | 22.6 | -0.300 | Monocrystalline |


## Top panels, Tata Power Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TP642LG10B](https://comparepv.com/panel/tata-power-solar-tp642lg10b) | 642 | 23.1 | -0.370 | Monocrystalline |
| 2 | [TP637LG10B](https://comparepv.com/panel/tata-power-solar-tp637lg10b) | 637 | 22.9 | -0.370 | Monocrystalline |
| 3 | [TP631LG10B](https://comparepv.com/panel/tata-power-solar-tp631lg10b) | 631 | 22.7 | -0.370 | Monocrystalline |
| 4 | [TP626LG10B](https://comparepv.com/panel/tata-power-solar-tp626lg10b) | 626 | 22.5 | -0.370 | Monocrystalline |
| 5 | [TP621LG10B](https://comparepv.com/panel/tata-power-solar-tp621lg10b) | 621 | 22.3 | -0.370 | Monocrystalline |
| 6 | [TP615LG10B](https://comparepv.com/panel/tata-power-solar-tp615lg10b) | 615 | 22.1 | -0.370 | Monocrystalline |
| 7 | [TP610LG10B](https://comparepv.com/panel/tata-power-solar-tp610lg10b) | 610 | 21.9 | -0.370 | Monocrystalline |
| 8 | [TP600LG10TB](https://comparepv.com/panel/tata-power-solar-tp600lg10tb) | 600 | 21.5 | -0.360 | Monocrystalline |
| 9 | [TP600LG10B](https://comparepv.com/panel/tata-power-solar-tp600lg10b) | 600 | 21.5 | -0.370 | Monocrystalline |
| 10 | [TP595LG10TB](https://comparepv.com/panel/tata-power-solar-tp595lg10tb) | 595 | 21.4 | -0.360 | Monocrystalline |


## Summary

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.

\---LINKS---

\- https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review \| Expert Review of Qcells Solar Panels for 2025 - SolarReviews \| review

\- https://www.pv-magazine.com/2025/06/10/tata-power-hits-4-gw-of-solar-module-production-capacity/ \| Tata Power hits 4 GW of solar module production capacity - PV Magazine \| article

\- https://www.pv-magazine.com/2024/09/10/tata-power-begins-solar-cell-production-at-4-3-gw-plant-in-india/ \| Tata Power begins solar cell production at 4.3 GW plant in India - PV Magazine \| article

\- https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-new-cartersville-factory-set-for-33-gw-of-solar-module-production-per-year.do \| Hanwha Qcells Cartersville factory set for 3.3 GW annual production \| article

\- https://www.mercomindia.com/tata-power-roofsol-mahindra-lead-indias-rooftop-solar-market-in-2025 \| Tata Power leads India rooftop solar market in 2025 - Mercom India \| article

Sources:

\- \[Expert Review of Qcells Solar Panels for 2025 - SolarReviews\](https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review)

\- \[Tata Power hits 4 GW of solar module production capacity - PV Magazine\](https://www.pv-magazine.com/2025/06/10/tata-power-hits-4-gw-of-solar-module-production-capacity/)

\- \[Tata Power begins solar cell production at 4.3 GW plant in India - PV Magazine\](https://www.pv-magazine.com/2024/09/10/tata-power-begins-solar-cell-production-at-4-3-gw-plant-in-india/)

\- \[Hanwha Qcells Cartersville factory set for 3.3 GW annual production\](https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-new-cartersville-factory-set-for-33-gw-of-solar-module-production-per-year.do)

\- \[Tata Power leads India rooftop solar market in 2025 - Mercom India\](https://www.mercomindia.com/tata-power-roofsol-mahindra-lead-indias-rooftop-solar-market-in-2025)

Written by claude-sonnet from the figures above.


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Source: https://comparepv.com/q-cells-vs-tata-power-solar

Not in this file, on the page: the distributions above drawn as charts.