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

# GCL vs Q-Cells

GCL has the broader catalog (232 vs 89 models). GCL leads on peak efficiency at 24.50%. GCL leans bifacial (65% of lineup).


## The two companies


| Attribute | GCL | Q-Cells |
| --- | --- | --- |
| Country | China | South Korea |
| Headquarters | Suzhou/Hong Kong | Seoul |
| Founded | 1990 | 1999 |
| Employees | 6000+ | 2000+ |
| Annual capacity | 30+ GW/year | 11.2 GW/year |
| Tier 1 | yes | yes |
| Listed | Hong Kong Stock Exchange/Shenzhen Stock Exchange: 03800.HK/002506.SZ | NASDAQ: HQCL |
| Website | [http://www.gcltech.com/](http://www.gcltech.com/) | [https://www.qcells.com](https://www.qcells.com) |

GCL is a global company focusing on green energy and high-efficiency photovoltaic materials. They are known for their innovation in polysilicon and wafer technologies, with a focus on low-carbon solutions. GCL is committed to building a low-carbon PV value chain and advancing global clean energy transformation.

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 | GCL | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 232 | 89 | +143 |
| Max Power | 740 W | 675 W | +65 W |
| Avg Power | 558 W | 468 W | +90 W |


## Efficiency


| Measure | GCL | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.50% | 23.20% | +1.30 pp |
| Avg Efficiency | 22.03% | 21.21% | +0.81 pp |


## Reliability & Warranty


| Measure | GCL | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.320%/°C | -0.325%/°C | +0.004 |
| Bifacial Share | 151 (65%) | 35 (39%) | +26 pp |
| Avg Warranty | 28.4 yrs | 27.0 yrs | +1.4 yr |


## Efficiency distribution

GCL skews to higher efficiency: 28% of lineup is 23%+


| Efficiency band | GCL | Q-Cells |
| --- | --- | --- |
| \<20% | 2 (0.9%) | 7 (7.9%) |
| 20-21% | 43 (18.5%) | 29 (32.6%) |
| 21-22% | 73 (31.5%) | 30 (33.7%) |
| 22-23% | 48 (20.7%) | 21 (23.6%) |
| 23%+ | 66 (28.4%) | 2 (2.2%) |


## Power distribution

GCL offers more 600W+ panels (44% of lineup)


| Power band | GCL | Q-Cells |
| --- | --- | --- |
| \<400W | 6 (2.6%) | 20 (22.5%) |
| 400-499W | 60 (25.9%) | 41 (46.1%) |
| 500-599W | 63 (27.2%) | 11 (12.4%) |
| 600-699W | 81 (34.9%) | 17 (19.1%) |
| 700W+ | 22 (9.5%) | 0 |


## Cell technology

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

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


| Technology | GCL | Q-Cells |
| --- | --- | --- |
| TOPCon | 108 (46.6%) | 8 (9.0%) |
| PERC | 102 (44.0%) | 38 (42.7%) |
| N-type | 10 (4.3%) | 23 (25.8%) |
| HJT | 7 (3.0%) | 0 |
| BIPV | 5 (2.2%) | 0 |
| Unknown | 0 | 20 (22.5%) |


## Top panels, GCL


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [GCL-NT12/66GDF-740](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-740) | 740 | 23.8 | -0.290 | Monocrystalline |
| 2 | [GCL-NT12/66GDF-735](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-735) | 735 | 23.7 | -0.290 | Monocrystalline |
| 3 | [GCL-NT12/66GDF-730](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-730) | 730 | 23.5 | -0.290 | Monocrystalline |
| 4 | [NT12/66GDF-730](https://comparepv.com/panel/gcl-nt12-66gdf-730) | 730 | 23.5 | -0.290 | Monocrystalline |
| 5 | [GCL-NT12/66GDF-725](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-725) | 725 | 23.3 | -0.290 | Monocrystalline |
| 6 | [NT12/66GDF-725](https://comparepv.com/panel/gcl-nt12-66gdf-725) | 725 | 23.3 | -0.290 | Monocrystalline |
| 7 | [GCL-NT12/66GDF 725](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-725-1) | 725 | 23.3 | -0.290 | Monocrystalline |
| 8 | [GCL-NH12/66GDF-720](https://comparepv.com/panel/gcl-gcl-nh12-66gdf-720) | 720 | 23.2 | -0.240 | Monocrystalline |
| 9 | [GCL-NT12/66GDF-720](https://comparepv.com/panel/gcl-gcl-nt12-66gdf-720) | 720 | 23.2 | -0.290 | Monocrystalline |
| 10 | [NT12/66GDF-720](https://comparepv.com/panel/gcl-nt12-66gdf-720) | 720 | 23.2 | -0.290 | Monocrystalline |


## 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 |


## Summary

GCL (GCL System Integration Technology) is a Chinese manufacturer headquartered in Jiangsu Province and part of the broader GCL Group, which traces its origins to 1990 and ranks among the world's largest polysilicon producers. GCL SI carries Bloomberg Tier 1 bankability status, and its annual module production capacity has been reported at approximately 30 GW, placing it among the highest-volume module manufacturers on the planet. Q-Cells was originally founded in 1999 in Bitterfeld-Wolfen, Germany, and listed on the Frankfurt Stock Exchange before filing for bankruptcy in 2011 amid a sharp collapse in panel prices. The South Korean conglomerate Hanwha Group acquired it in 2012, and the company now operates as Hanwha Q CELLS, headquartered in Seoul. Q-Cells also holds Bloomberg Tier 1 status and operates what is reported to be the largest solar manufacturing facility in the Western Hemisphere, in Dalton, Georgia. In terms of institutional brand recognition and positioning in regulated tenders, Q-Cells commands a stronger foothold, underpinned by its European engineering heritage and a geographically diversified manufacturing base.

GCL's current product portfolio centers on large-format N-type TOPCon modules in 182 mm and 210 mm form factors. Its 182-72 TOPCon line has achieved a confirmed mass-production module efficiency of 23.42%, with wattage options ranging from around 380 W to over 680 W. These products are principally aimed at utility-scale ground-mount projects and large commercial rooftop installations where cost-per-watt is the dominant selection criterion. Q-Cells competes across a broader range of market segments. Its Q.ANTUM NEO technology, deployed in the Q.TRON G2 line, employs TOPCon cell architecture and achieves efficiencies reported at up to 22.5%, with select models reaching 23.2%. The portfolio spans residential rooftop, commercial and industrial, and utility-scale applications. Q-Cells backs its products with a 25-year product warranty, a differentiator that carries meaningful weight for homeowners and smaller commercial buyers who prioritize long-term manufacturer support.

For a typical buyer outside large-volume procurement, Q-Cells is the more defensible default choice. Its European brand history, strong warranty terms, consistent Tier 1 recognition, and diversified manufacturing reduce perceived risk over a 25-year system lifetime. GCL becomes the more compelling option at utility scale, where its enormous production capacity enables competitive module pricing and supply reliability for high-volume orders. The two brands are not straightforwardly interchangeable - Q-Cells skews toward quality-assurance-sensitive and warranty-driven markets, while GCL targets volume-driven and cost-sensitive procurement.

Written by claude-sonnet from the figures above.


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

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