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

# Q-Cells vs Tongwei

Tongwei has the broader catalog (122 vs 89 models). Tongwei leads on peak efficiency at 24.20%. Tongwei leans bifacial (69% of lineup).


## The two companies


| Attribute | Q-Cells | Tongwei |
| --- | --- | --- |
| Country | South Korea | China |
| Headquarters | Seoul | Chengdu |
| Founded | 1999 | 2013 |
| Employees | 2000+ |  |
| Annual capacity | 11.2 GW/year |  |
| Tier 1 | yes | yes |
| Listed | NASDAQ: HQCL | SSE: 600438 |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) |

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...


## Catalog & Power


| Measure | Q-Cells | Tongwei | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 122 | +33 |
| Max Power | 675 W | 750 W | +75 W |
| Avg Power | 468 W | 584 W | +115 W |


## Efficiency


| Measure | Q-Cells | Tongwei | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 24.20% | +1.00 pp |
| Avg Efficiency | 21.21% | 22.59% | +1.37 pp |


## Reliability & Warranty


| Measure | Q-Cells | Tongwei | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.284%/°C | +0.040 |
| Bifacial Share | 35 (39%) | 84 (69%) | +30 pp |
| Avg Warranty | 27.0 yrs | 29.5 yrs | +2.6 yr |


## Efficiency distribution

Tongwei skews to higher efficiency: 41% of lineup is 23%+


| Efficiency band | Q-Cells | Tongwei |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 2 (1.6%) |
| 20-21% | 29 (32.6%) | 6 (4.9%) |
| 21-22% | 30 (33.7%) | 14 (11.5%) |
| 22-23% | 21 (23.6%) | 50 (41.0%) |
| 23%+ | 2 (2.2%) | 50 (41.0%) |


## Power distribution

Tongwei offers more 600W+ panels (53% of lineup)


| Power band | Q-Cells | Tongwei |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 0 |
| 400-499W | 41 (46.1%) | 41 (33.6%) |
| 500-599W | 11 (12.4%) | 16 (13.1%) |
| 600-699W | 17 (19.1%) | 33 (27.0%) |
| 700W+ | 0 | 32 (26.2%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (47%)


| Technology | Q-Cells | Tongwei |
| --- | --- | --- |
| PERC | 38 (42.7%) | 10 (8.2%) |
| N-type | 23 (25.8%) | 44 (36.1%) |
| Unknown | 20 (22.5%) | 6 (4.9%) |
| TOPCon | 8 (9.0%) | 57 (46.7%) |
| HJT | 0 | 5 (4.1%) |


## 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, Tongwei


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TWMNF-66HD750](https://comparepv.com/panel/tongwei-solar-twmnf-66hd750) | 750 | 24.1 | -0.280 | Monocrystalline |
| 2 | [TWMNF-66HD745](https://comparepv.com/panel/tongwei-solar-twmnf-66hd745) | 745 | 24.0 | -0.280 | Monocrystalline |
| 3 | [TWMNF-66HD740](https://comparepv.com/panel/tongwei-solar-twmnf-66hd740) | 740 | 23.8 | -0.280 | Monocrystalline |
| 4 | [TWMHF-66HD740X](https://comparepv.com/panel/tw-solar-twmhf-66hd740x) | 740 | 23.8 | -0.240 | Monocrystalline |
| 5 | [THC G12-66 Bifacial](https://comparepv.com/panel/tongwei-thc-g12-66-bifacial) | 740 | 23.8 | -0.280 | Monocrystalline |
| 6 | [TWMNF-66HD735](https://comparepv.com/panel/tongwei-solar-twmnf-66hd735) | 735 | 23.7 | -0.280 | Monocrystalline |
| 7 | [TWMHF-66HD735X](https://comparepv.com/panel/tw-solar-twmhf-66hd735x) | 735 | 23.7 | -0.240 | Monocrystalline |
| 8 | [TWMHF-66HD730X](https://comparepv.com/panel/tw-solar-twmhf-66hd730x) | 730 | 23.5 | -0.240 | Monocrystalline |
| 9 | [TWMNF-66HD730](https://comparepv.com/panel/tongwei-solar-twmnf-66hd730) | 730 | 23.5 | -0.280 | Monocrystalline |
| 10 | [TWMNF-66HD725](https://comparepv.com/panel/tongwei-solar-twmnf-66hd725) | 725 | 23.3 | -0.280 | Monocrystalline |


## Summary

Q-Cells, operating under South Korea's Hanwha Group, was founded in 1999 and is listed on NASDAQ, with a rated production capacity of 11.2 GW. Tongwei, headquartered in China and founded in 2013, trades on the Shanghai Stock Exchange and has scaled to approximately 85 GW of module capacity as of early 2025, placing it among the world's five largest producers. Both carry BloombergNEF Tier 1 bankability, confirming lender confidence for project finance. Q-Cells holds a stronger institutional footprint in Western markets - particularly North America, where it operates the largest solar manufacturing facility in that region - while Tongwei's production scale and aggressive capacity expansion give it commanding reach in global utility procurement.

Q-Cells' 91-model catalog is anchored in PERC cell technology, averaging 462 Wp per panel and peaking at 635 Wp, with average module efficiency of 21.3% and a maximum of 23.2%. About 42% of its lineup is bifacial, and average warranty coverage reaches 27.1 years. That profile suits premium residential and mid-scale commercial rooftops where brand familiarity and supply-chain stability matter. Tongwei's broader 132-model portfolio tilts heavily toward N-type cells, delivering a higher average efficiency of 22.6% - peaking at 24.2% - and an average output of 588 Wp that tops out at 750 Wp. Its bifacial share reaches 71%, and its temperature coefficient of -0.284%/°C outperforms Q-Cells' -0.323%/°C, meaning less power loss in warm climates. An average warranty of 29.6 years further raises the bar. This combination points squarely at utility-scale ground mounts and large commercial arrays.

For most buyers in 2025, the technical data clearly favors Tongwei in efficiency, power density, bifacial coverage, thermal behavior, and warranty depth. Q-Cells is the stronger choice for residential installations and North American commercial developers who benefit from its regional manufacturing presence, established installer network, and a track record stretching back more than two decades. Both are genuinely bankable options, and for mid-scale projects caught between the two use cases, either brand is a defensible and well-supported selection.

\---LINKS---

\- https://www.pvtime.org/tongwei-solar-earns-bloombergnef-tier-1-module-manufacturer-status-in-q1-2025/ \| Tongwei Solar Earns BloombergNEF Tier 1 Status in Q1 2025 \| article

\- 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/2025/05/06/chinese-pv-industry-brief-financials-from-tonwgei-ginlong-goodwe-flat-glass/ \| pv magazine - Tongwei and GoodWe post 2024 financial losses \| article

\- https://scorecard.pvel.com/manufacturer\_name/tongwei-solar/ \| Tongwei Solar - Kiwa PVEL 2025 PV Module Reliability Scorecard \| review

Sources:

\- \[Tongwei Solar Earns BloombergNEF Tier 1 Status in Q1 2025\](https://www.pvtime.org/tongwei-solar-earns-bloombergnef-tier-1-module-manufacturer-status-in-q1-2025/)

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

\- \[pv magazine - Tongwei and GoodWe post 2024 financial losses\](https://www.pv-magazine.com/2025/05/06/chinese-pv-industry-brief-financials-from-tonwgei-ginlong-goodwe-flat-glass/)

\- \[Tongwei Solar - Kiwa PVEL 2025 PV Module Reliability Scorecard\](https://scorecard.pvel.com/manufacturer\_name/tongwei-solar/)

\- \[Hanwha Qcells Named S&P Global 2025 Tier 1 Cleantech Company\](https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-named-an-s-p-global-2025-tier-1-cleantech-company.do)

Written by claude-sonnet from the figures above.


## Other comparisons

- [Q-Cells vs A.B. Energy](https://comparepv.com/q-cells-vs-a-b-energy)
- [AE Solar vs Tongwei](https://comparepv.com/ae-solar-vs-tongwei)
- [Q-Cells vs AEET](https://comparepv.com/q-cells-vs-aeet)
- [AIKO vs Tongwei](https://comparepv.com/aiko-vs-tongwei)
- [Q-Cells vs AKCOME](https://comparepv.com/q-cells-vs-akcome)
- [ARTsolar vs Tongwei](https://comparepv.com/artsolar-vs-tongwei)


---

Source: https://comparepv.com/q-cells-vs-tongwei

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