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

# Maxx vs Q-Cells

Q-Cells has the broader catalog (89 vs 0 models). Q-Cells leans bifacial (39% of lineup).


## The two companies


| Attribute | Maxx | Q-Cells |
| --- | --- | --- |
| Country |  | South Korea |
| Headquarters |  | Seoul |
| Founded |  | 1999 |
| Employees |  | 2000+ |
| Annual capacity |  | 11.2 GW/year |
| Tier 1 |  | yes |
| 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 | Maxx | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 0 | 89 | +89 |
| Max Power | 0 W | 675 W | +675 W |
| Avg Power | 0 W | 468 W | +468 W |


## Efficiency


| Measure | Maxx | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | - | 23.20% |  |
| Avg Efficiency | - | 21.21% |  |


## Reliability & Warranty


| Measure | Maxx | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | - | -0.325%/°C |  |
| Bifacial Share | 0 (0%) | 35 (39%) | +39 pp |
| Avg Warranty | - | 27.0 yrs |  |


## Efficiency distribution

Q-Cells skews to higher efficiency: 2% of lineup is 23%+


| Efficiency band | Maxx | Q-Cells |
| --- | --- | --- |
| \<20% | 0 | 7 (7.9%) |
| 20-21% | 0 | 29 (32.6%) |
| 21-22% | 0 | 30 (33.7%) |
| 22-23% | 0 | 21 (23.6%) |
| 23%+ | 0 | 2 (2.2%) |


## Power distribution

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


| Power band | Maxx | Q-Cells |
| --- | --- | --- |
| \<400W | 0 | 20 (22.5%) |
| 400-499W | 0 | 41 (46.1%) |
| 500-599W | 0 | 11 (12.4%) |
| 600-699W | 0 | 17 (19.1%) |


## Cell technology

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


| Technology | Maxx | Q-Cells |
| --- | --- | --- |
| PERC | 0 | 38 (42.7%) |
| N-type | 0 | 23 (25.8%) |
| Unknown | 0 | 20 (22.5%) |
| TOPCon | 0 | 8 (9.0%) |


## 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 |


## Summary

MAXX SOLAR & ENERGIE GmbH & Co. KG is a regional solar system integrator based in Waltershausen, Thuringia, Germany, founded in 2008. Rather than manufacturing its own panels, the company plans, installs, and services photovoltaic systems for residential and commercial customers, sourcing hardware from established third-party brands. With more than 6,350 completed installations and recognition as one of Germany's growth champions for 2025-2026, Maxx Solar has built a solid regional reputation, but it does not hold manufacturer-level certifications such as BloombergNEF Tier 1 bankability. Q CELLS, operating as the solar division of South Korean conglomerate Hanwha Group, is a fundamentally different kind of entity - a vertically integrated global panel manufacturer with roots dating to the original Q-Cells AG founded in 1999 and a European headquarters in Thalheim, Germany. Q CELLS carries Bloomberg Tier 1 bankability status and operates combined US module capacity of approximately 8.4 GW, making it one of the largest panel producers in the Western Hemisphere and a dominant force in American residential and commercial markets.

Because Maxx Solar installs rather than manufactures panels, a direct product-line comparison is not straightforward. Q CELLS fields well-defined product families built on its proprietary Q.ANTUM NEO platform - a TOPCon-based cell architecture - spanning panels suited to premium residential rooftops, mid-tier commercial arrays, and utility-adjacent ground mounts. Its flagship Q.TRON G2 residential series achieves over 22.5% efficiency and carries a 25-year product warranty alongside low annual degradation rates. Maxx Solar, by contrast, sources whichever tier-1 hardware it considers most appropriate for each project.

For a buyer choosing between these two names at the product level, the comparison does not hold in the traditional sense: Q CELLS is the panel manufacturer, while Maxx Solar is the type of regional installer that might actually fit Q CELLS modules onto a rooftop. A homeowner in Thuringia evaluating Maxx Solar should assess its workmanship and service record independently; the panel brand decision - possibly including Q CELLS - is a separate one that follows.

\---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.enfsolar.com/maxx-solar \| MAXX SOLAR & ENERGIE GmbH - installer profile \| article

\- https://www.pv-tech.org/hanwha\_q\_cells\_to\_expand\_capacity\_after\_us188\_million\_cash\_injection/ \| Hanwha Q CELLS capacity expansion - PV Tech \| article

\- 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 \| 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/)

\- \[MAXX SOLAR & ENERGIE GmbH - ENF Solar Profile\](https://www.enfsolar.com/maxx-solar)

\- \[Hanwha Q CELLS capacity expansion - PV Tech\](https://www.pv-tech.org/hanwha\_q\_cells\_to\_expand\_capacity\_after\_us188\_million\_cash\_injection/)

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

Written by claude-sonnet from the figures above.


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