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

# Q-Cells vs Solitek

Q-Cells has the broader catalog (89 vs 49 models). Q-Cells leads on peak efficiency at 23.20%. Solitek leans bifacial (100% of lineup).


## The two companies


| Attribute | Q-Cells | Solitek |
| --- | --- | --- |
| Country | South Korea | Lithuania |
| Headquarters | Seoul | Vilnius |
| Founded | 1999 | 2009 |
| Employees | 2000+ | 100-500 |
| Annual capacity | 11.2 GW/year | 0.1-0.5 GW/year |
| Tier 1 | yes |  |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://www.solitek.eu](https://www.solitek.eu) |

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...

SoliTek is a European solar panel and energy storage manufacturer headquartered in Vilnius, Lithuania, and is the largest solar module producer in Northern Europe. Part of the family-owned BOD Group, the company operates a fully automated production line with approximately 250 MW of annual module capacity and exports...


## Catalog & Power


| Measure | Q-Cells | Solitek | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 49 | +40 |
| Max Power | 675 W | 720 W | +45 W |
| Avg Power | 468 W | 427 W | +42 W |


## Efficiency


| Measure | Q-Cells | Solitek | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 23.18% | +0.02 pp |
| Avg Efficiency | 21.21% | 20.43% | +0.79 pp |


## Reliability & Warranty


| Measure | Q-Cells | Solitek | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.301%/°C | +0.023 |
| Bifacial Share | 35 (39%) | 49 (100%) | +61 pp |
| Avg Warranty | 27.0 yrs | 30.0 yrs | +3.0 yr |


## Efficiency distribution

Solitek skews to higher efficiency: 4% of lineup is 23%+


| Efficiency band | Q-Cells | Solitek |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 15 (30.6%) |
| 20-21% | 29 (32.6%) | 0 |
| 21-22% | 30 (33.7%) | 4 (8.2%) |
| 22-23% | 21 (23.6%) | 28 (57.1%) |
| 23%+ | 2 (2.2%) | 2 (4.1%) |


## Power distribution

Q-Cells offers more 600W+ panels (19% of lineup)


| Power band | Q-Cells | Solitek |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 15 (30.6%) |
| 400-499W | 41 (46.1%) | 28 (57.1%) |
| 500-599W | 11 (12.4%) | 2 (4.1%) |
| 600-699W | 17 (19.1%) | 2 (4.1%) |
| 700W+ | 0 | 2 (4.1%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (98%)


| Technology | Q-Cells | Solitek |
| --- | --- | --- |
| PERC | 38 (42.7%) | 0 |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 1 (2.0%) |
| TOPCon | 8 (9.0%) | 48 (98.0%) |


## 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, Solitek


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [Forza 720](https://comparepv.com/panel/ginlong-solis-forza-720) | 720 | 23.2 | -0.300 | Monocrystalline |
| 2 | [SOLID Framed White 720W](https://comparepv.com/panel/ginlong-solis-solid-framed-white-720w) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [Forza 650](https://comparepv.com/panel/ginlong-solis-forza-650) | 650 | 23.0 | -0.300 | Monocrystalline |
| 4 | [SOLID Framed White 650W](https://comparepv.com/panel/ginlong-solis-solid-framed-white-650w) | 650 | 23.0 | -0.300 | Monocrystalline |
| 5 | [Magnus 510](https://comparepv.com/panel/ginlong-solis-magnus-510) | 510 | 22.9 | -0.300 | Monocrystalline |
| 6 | [SOLID Framed Transparent 505](https://comparepv.com/panel/ginlong-solis-solid-framed-transparent-505) | 505 | 22.3 | -0.300 | Monocrystalline |
| 7 | [SOLRIF D Black 455](https://comparepv.com/panel/ginlong-solis-solrif-d-black-455) | 455 | 22.6 | -0.300 | Monocrystalline |
| 8 | [SOLID Semi-Clear Framed 455 W](https://comparepv.com/panel/ginlong-solis-solid-semi-clear-framed-455-w) | 455 | 22.8 | -0.300 | Monocrystalline |
| 9 | [SOLRIF N Black 455](https://comparepv.com/panel/ginlong-solis-solrif-n-black-455) | 455 | 22.6 | -0.300 | Monocrystalline |
| 10 | [SOLID Black Frameless 455](https://comparepv.com/panel/ginlong-solis-solid-black-frameless-455) | 455 | 22.6 | -0.300 | Monocrystalline |


## Summary

Q-Cells, operating under the South Korean conglomerate Hanwha Solutions, traces its roots to the German Q Cells brand and today runs the largest solar module manufacturing complex in the Western Hemisphere, with facilities in Dalton and Cartersville, Georgia producing a combined capacity of roughly 8.4 GW annually in the United States alone. The brand holds BloombergNEF Tier 1 status, reflecting its ability to finance large independent commercial projects and its deep institutional relationships with lenders and project developers worldwide. Solitek, by contrast, is a family-owned Lithuanian manufacturer founded in 2013, widely cited as the largest solar panel producer in Northern Europe with around 250 MW of annual capacity at its Vilnius plant, and is now expanding via a TOPCon-focused assembly plant in Benevento, Italy targeting up to 600 MW. No BloombergNEF Tier 1 designation for Solitek appears in current industry sources. On institutional footprint, Q-Cells is substantially larger and more bankable.

The two companies serve meaningfully different market segments. Q-Cells addresses mainstream residential and commercial rooftops globally through its Q.TRON line, which employs the company's proprietary Q.ANTUM NEO TOPCon N-type cell technology and reaches efficiencies up to 22.5%, backed by a 25-year product and performance warranty. Solitek deliberately targets niches that large Chinese and Korean manufacturers underserve - building-integrated photovoltaics, agrivoltaic installations, carports, roadside barriers, and architecturally sensitive residential projects. Its glass-glass bifacial panels carry a 30-year warranty and have earned the Cradle to Cradle gold sustainability certification, making them a standout for buyers prioritizing circular-economy credentials. Its Italian plant is adopting TOPCon cells, but much of its existing portfolio uses earlier crystalline silicon configurations.

For a typical buyer seeking bankable, high-volume residential or commercial supply in 2025, Q-Cells is the clearer default - offering proven Tier 1 status, domestic U.S. production, and a well-documented performance record. Solitek is the stronger choice for European projects with strict sustainability requirements, heritage design constraints, or specialized structural applications where its glass-glass durability and certification profile justify a smaller, more specialized supplier.

\---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-tech.org/solitek-targets-niche-markets-for-italy-module-plant-to-avoid-competing-with-chinese/ \| Solitek targets niche markets for Italy module plant - PV Tech \| article

\- https://www.solarfeeds.com/biz/solitek-cells/ \| SoliTek Company Overview - Production Capacity and Tier 1 Status \| article

\- https://us.qcells.com/blog/qcells-invests-2-5-billion-in-building-complete-solar-supply-chain-in-u-s/ \| Qcells Invests $2.5 Billion in U.S. Solar Supply Chain \| article

\- https://www.pvknowhow.com/news/bifacial-solar-panels-impressive-2024-solitek-study/ \| Bifacial Solar Panels - Impressive 2024 SoliTek Study \| article

Sources:

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

\- \[Solitek targets niche markets for Italy module plant - PV Tech\](https://www.pv-tech.org/solitek-targets-niche-markets-for-italy-module-plant-to-avoid-competing-with-chinese/)

\- \[SoliTek Company Overview - SolarFeeds\](https://www.solarfeeds.com/biz/solitek-cells/)

\- \[Qcells Invests $2.5 Billion in U.S. Solar Supply Chain\](https://us.qcells.com/blog/qcells-invests-2-5-billion-in-building-complete-solar-supply-chain-in-u-s/)

\- \[Bifacial Solar Panels - 2024 SoliTek Study - PVknowhow\](https://www.pvknowhow.com/news/bifacial-solar-panels-impressive-2024-solitek-study/)

Written by claude-sonnet from the figures above.


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

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