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

# Q-Cells vs VSUN

VSUN has the broader catalog (111 vs 89 models). Q-Cells leads on peak efficiency at 23.20%. VSUN leans bifacial (75% of lineup).


## The two companies


| Attribute | Q-Cells | VSUN |
| --- | --- | --- |
| Country | South Korea | Germany |
| Headquarters | Seoul | Frankfurt am Main |
| Founded | 1999 | 2012 |
| Employees | 2000+ |  |
| Annual capacity | 11.2 GW/year |  |
| Tier 1 | yes | no |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://www.vsun-solar.com](https://www.vsun-solar.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...


## Catalog & Power


| Measure | Q-Cells | VSUN | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 111 | +22 |
| Max Power | 675 W | 715 W | +40 W |
| Avg Power | 468 W | 524 W | +55 W |


## Efficiency


| Measure | Q-Cells | VSUN | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 23.14% | +0.06 pp |
| Avg Efficiency | 21.21% | 21.71% | +0.50 pp |


## Reliability & Warranty


| Measure | Q-Cells | VSUN | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.308%/°C | +0.017 |
| Bifacial Share | 35 (39%) | 83 (75%) | +35 pp |
| Avg Warranty | 27.0 yrs | 29.7 yrs | +2.7 yr |


## Efficiency distribution

VSUN skews to higher efficiency: 3% of lineup is 23%+


| Efficiency band | Q-Cells | VSUN |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 1 (0.9%) |
| 20-21% | 29 (32.6%) | 13 (11.7%) |
| 21-22% | 30 (33.7%) | 55 (49.5%) |
| 22-23% | 21 (23.6%) | 39 (35.1%) |
| 23%+ | 2 (2.2%) | 3 (2.7%) |


## Power distribution

VSUN offers more 600W+ panels (29% of lineup)


| Power band | Q-Cells | VSUN |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 3 (2.7%) |
| 400-499W | 41 (46.1%) | 48 (43.2%) |
| 500-599W | 11 (12.4%) | 28 (25.2%) |
| 600-699W | 17 (19.1%) | 27 (24.3%) |
| 700W+ | 0 | 5 (4.5%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (72%)


| Technology | Q-Cells | VSUN |
| --- | --- | --- |
| PERC | 38 (42.7%) | 28 (25.2%) |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 3 (2.7%) |
| TOPCon | 8 (9.0%) | 80 (72.1%) |


## 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, VSUN


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [VSUN715N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun715n-132bmht-dg) | 715 | 23.0 | -0.300 | Monocrystalline |
| 2 | [VSUN710N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun710n-132bmht-dg) | 710 | 22.9 | -0.300 | Monocrystalline |
| 3 | [VSUN705N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun705n-132bmht-dg) | 705 | 22.7 | -0.300 | Monocrystalline |
| 4 | [VSUN700N-132BMH-DG](https://comparepv.com/panel/vsun-vsun700n-132bmh-dg) | 700 | 22.5 | -0.300 | Monocrystalline |
| 5 | [VSUN700N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun700n-132bmht-dg) | 700 | 22.5 | -0.300 | Monocrystalline |
| 6 | [VSUN695N-132BMH-DG](https://comparepv.com/panel/vsun-vsun695n-132bmh-dg) | 695 | 22.4 | -0.300 | Monocrystalline |
| 7 | [VSUN695N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun695n-132bmht-dg) | 695 | 22.4 | -0.300 | Monocrystalline |
| 8 | [VSUN690N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun690n-132bmht-dg) | 690 | 22.2 | -0.300 | Monocrystalline |
| 9 | [VSUN690N-132BMH-DG](https://comparepv.com/panel/vsun-vsun690n-132bmh-dg) | 690 | 22.2 | -0.300 | Monocrystalline |
| 10 | [VSUN685N-132BMH-DG](https://comparepv.com/panel/vsun-vsun685n-132bmh-dg) | 685 | 22.1 | -0.300 | Monocrystalline |


## Summary

Q-Cells is the solar brand of South Korea's Hanwha Group, one of the country's largest conglomerates, with roots in the original Q-Cells GmbH founded in Germany in 1999 and acquired by Hanwha in 2012. The brand holds a long-standing BloombergNEF Tier 1 bankability ranking and operates manufacturing in South Korea, Malaysia, and the United States, where its Dalton and Cartersville, Georgia facilities together represent approximately 8.4 GW of annual module capacity - the largest solar manufacturing footprint in the Western Hemisphere. Globally, Q-Cells ships in the range of 11-12 GW annually, placing it among the top ten module producers worldwide. VSUN is a smaller manufacturer headquartered in Tokyo, Japan, backed by Fuji Solar, a Japanese firm focused on solar development and EPC services. VSUN achieved BloombergNEF Tier 1 status in Q1 2025, having first appeared on that list as early as 2019. Its production scale is considerably more modest, and its name recognition outside Asia-Pacific is limited. On institutional footprint, Q-Cells is clearly the stronger of the two.

For residential and light-commercial rooftops, Q-Cells centers its current lineup on the Q.TRON G2 series, which uses Q.ANTUM NEO - the company's proprietary TOPCon cell architecture - to deliver module efficiencies above 22.5% alongside a notably low temperature coefficient. VSUN's panels incorporate what the company calls HOT 2.0 technology alongside multi-busbar and half-cell design, with bifacial variants available; the company reports peak efficiencies up to 22.65%. Both brands offer 25-year product warranties and multi-decade performance guarantees. VSUN leans toward the residential and small-commercial segment, while Q-Cells serves a broader range from premium rooftops to larger commercial ground mounts.

For most buyers in 2025, Q-Cells is the safer default choice. Its global manufacturing scale, well-documented US supply chain, and decade-long track record with financiers give it a bankability edge that matters for both homeowners seeking long-term confidence and developers arranging project finance. VSUN is a credible option, particularly in markets where it is distributed by established local partners, but it remains a less-proven name in most regions outside Asia.

\---LINKS---

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

\- https://solartechonline.com/blog/hanwha-q-cells-solar-panels-review-2025/ \| Hanwha Q CELLS Solar Panels Review 2025 - Expert Analysis \| review

\- https://www.energysage.com/solar-panels/vsun/ \| VSUN Solar Panels - EnergySage Buyer Guide \| review

\- https://www.pv-magazine.com/press-releases/vsun-solar-successfully-listed-on-q3-bloomberg-new-energy-finance-tier-1-solar-module-manufacturers-list/ \| VSun Solar listed on BloombergNEF Tier 1 Solar Module list \| article

Sources:

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

\- \[Hanwha Q CELLS Solar Panels Review 2025\](https://solartechonline.com/blog/hanwha-q-cells-solar-panels-review-2025/)

\- \[VSUN Solar Panels - EnergySage\](https://www.energysage.com/solar-panels/vsun/)

\- \[VSun Solar listed on BloombergNEF Tier 1 list - PV Magazine\](https://www.pv-magazine.com/press-releases/vsun-solar-successfully-listed-on-q3-bloomberg-new-energy-finance-tier-1-solar-module-manufacturers-list/)

\- \[VSUN Q1 2025 Tier 1 Achievement\](https://www.vsun-solar.com/news-detail/421.html)

Written by claude-sonnet from the figures above.


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- [Q-Cells vs A.B. Energy](https://comparepv.com/q-cells-vs-a-b-energy)
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- [AIKO vs VSUN](https://comparepv.com/aiko-vs-vsun)
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- [ARTsolar vs VSUN](https://comparepv.com/artsolar-vs-vsun)


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

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