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

# Q-Cells vs Sunplus

Q-Cells has the broader catalog (89 vs 11 models). Sunplus leads on peak efficiency at 24.10%. Sunplus leans bifacial (100% of lineup).


## The two companies


| Attribute | Q-Cells | Sunplus |
| --- | --- | --- |
| Country | South Korea |  |
| Headquarters | Seoul |  |
| Founded | 1999 |  |
| Employees | 2000+ |  |
| Annual capacity | 11.2 GW/year |  |
| Tier 1 | yes | no |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.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 | Sunplus | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 11 | +78 |
| Max Power | 675 W | 750 W | +75 W |
| Avg Power | 468 W | 670 W | +202 W |


## Efficiency


| Measure | Q-Cells | Sunplus | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 24.10% | +0.90 pp |
| Avg Efficiency | 21.21% | 22.42% | +1.20 pp |


## Reliability & Warranty


| Measure | Q-Cells | Sunplus | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.318%/°C | +0.006 |
| Bifacial Share | 35 (39%) | 11 (100%) | +61 pp |
| Avg Warranty | 27.0 yrs | 30.0 yrs | +3.0 yr |


## Efficiency distribution

Sunplus skews to higher efficiency: 55% of lineup is 23%+


| Efficiency band | Q-Cells | Sunplus |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 0 |
| 20-21% | 29 (32.6%) | 3 (27.3%) |
| 21-22% | 30 (33.7%) | 2 (18.2%) |
| 22-23% | 21 (23.6%) | 0 |
| 23%+ | 2 (2.2%) | 6 (54.5%) |


## Power distribution

Sunplus offers more 600W+ panels (64% of lineup)


| Power band | Q-Cells | Sunplus |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 0 |
| 400-499W | 41 (46.1%) | 0 |
| 500-599W | 11 (12.4%) | 4 (36.4%) |
| 600-699W | 17 (19.1%) | 1 (9.1%) |
| 700W+ | 0 | 6 (54.5%) |


## Cell technology

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

Dominant cell tech: **HJT** (55%)


| Technology | Q-Cells | Sunplus |
| --- | --- | --- |
| PERC | 38 (42.7%) | 5 (45.5%) |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 0 |
| TOPCon | 8 (9.0%) | 0 |
| HJT | 0 | 6 (54.5%) |


## 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, Sunplus


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [750](https://comparepv.com/panel/sunplus-750) | 750 | 24.1 | -0.300 | Monocrystalline |
| 2 | [745](https://comparepv.com/panel/sunplus-745) | 745 | 24.0 | -0.300 | Monocrystalline |
| 3 | [740](https://comparepv.com/panel/sunplus-740) | 740 | 23.8 | -0.300 | Monocrystalline |
| 4 | [735](https://comparepv.com/panel/sunplus-735) | 735 | 23.7 | -0.300 | Monocrystalline |
| 5 | [730](https://comparepv.com/panel/sunplus-730) | 730 | 23.5 | -0.300 | Monocrystalline |
| 6 | [725](https://comparepv.com/panel/sunplus-725) | 725 | 23.3 | -0.300 | Monocrystalline |
| 7 | [SR5-60HBD-600M](https://comparepv.com/panel/sunplus-sr5-60hbd-600m) | 600 | 21.2 | -0.340 | Monocrystalline |
| 8 | [SR5-60HBD-595M](https://comparepv.com/panel/sunplus-sr5-60hbd-595m) | 595 | 21.0 | -0.340 | Monocrystalline |
| 9 | [SR5-60HBD-590M](https://comparepv.com/panel/sunplus-sr5-60hbd-590m) | 590 | 20.8 | -0.340 | Monocrystalline |
| 10 | [SR5-60HBD-585M](https://comparepv.com/panel/sunplus-sr5-60hbd-585m) | 585 | 20.7 | -0.340 | Monocrystalline |


## Summary

Q-Cells is a solar panel brand owned by Hanwha Group, a South Korean industrial conglomerate that acquired the originally German Q-Cells company in 2012. Operating as Hanwha Q CELLS, it holds a long-standing Tier 1 designation from BloombergNEF, reflecting consistent bankability with international project finance institutions. Its U.S. manufacturing footprint spans facilities in Dalton and Cartersville, Georgia, representing more than 8 GW of annual module capacity - the largest silicon solar manufacturing base in the Western Hemisphere. Sunplus, operating as Sunplus Optimum Inc., is a newer and considerably smaller brand that has been building its presence in the Americas, Latin America, and Caribbean markets; no current BloombergNEF Tier 1 listing was found for the brand. On institutional footprint and financial credibility, Q-Cells holds a clear advantage.

Q-Cells markets its Q.ANTUM NEO line - panels reaching above 22.5% efficiency using a proprietary variant of TOPCon cell architecture - toward premium residential and commercial rooftops, as well as larger project deployments where lender-grade warranties and domestic supply-chain traceability matter. Its 25-year product warranty is a frequently cited differentiator among installers and EPCs. Sunplus pitches bifacial, dual-glass PERC modules rated around 21.5% efficiency as a cost-competitive option across residential, commercial, and utility-scale segments in the Americas, positioning itself as an accessible entry point for contractors seeking volume pricing.

For most buyers in 2025, Q-Cells is the lower-risk default: its Tier 1 bankability, substantial domestic manufacturing, and multi-decade track record make it easier to finance, insure, and warranty over a panel's lifetime. Sunplus may suit budget-conscious buyers or developers in markets where Q-Cells distribution is limited, but its smaller scale and the absence of confirmed Tier 1 status introduce greater counterparty uncertainty over a 25-year product lifespan.

\---LINKS---

\- https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review \| Hanwha Q CELLS solar panels - expert review - SolarReviews \| review

\- https://www.ecowatch.com/solar/reviews/qcells-solar-panels \| QCells Solar Panels - 2025 cost, efficiency and performance - EcoWatch \| review

\- https://energypal.com/best-solar-panels-for-homes/sun-plus \| Sun Plus solar panels buyer guide - EnergyPal \| review

\- https://carboncredits.com/hanwha-qcells-shines-with-record-breaking-solar-cell-efficiency-and-1-45-billion-doe-loan/ \| Hanwha Qcells record efficiency and $1.45B DOE loan - Carbon Credits \| article

Sources:

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

\- \[QCells Solar Panels Review (2025 Cost, Efficiency & Performance)\](https://www.ecowatch.com/solar/reviews/qcells-solar-panels)

\- \[Sun Plus - Best Solar Panels for Homes 2026 - EnergyPal Buyer's Guide\](https://energypal.com/best-solar-panels-for-homes/sun-plus)

\- \[Hanwha Qcells Shines with Record-Breaking Solar Cell Efficiency and $1.45 Billion DOE Loan\](https://carboncredits.com/hanwha-qcells-shines-with-record-breaking-solar-cell-efficiency-and-1-45-billion-doe-loan/)

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

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 Sunplus](https://comparepv.com/aiko-vs-sunplus)
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- [ARTsolar vs Sunplus](https://comparepv.com/artsolar-vs-sunplus)


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

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