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

# Exiom vs Q-Cells

Q-Cells has the broader catalog (89 vs 39 models). Exiom leads on peak efficiency at 23.40%. Exiom leans bifacial (59% of lineup).


## The two companies


| Attribute | Exiom | Q-Cells |
| --- | --- | --- |
| Country | Spain | South Korea |
| Headquarters | Barcelona | Seoul |
| Founded | 2019 | 1999 |
| Employees | 100 | 2000+ |
| Annual capacity | 0.5 GW/year | 11.2 GW/year |
| Tier 1 | no | yes |
| Listed |  | NASDAQ: HQCL |
| Website | [https://www.exiomsolution.com](https://www.exiomsolution.com) | [https://www.qcells.com](https://www.qcells.com) |

Exiom is a European solar module manufacturer with production facilities in Spain. The company focuses on producing high-quality photovoltaic modules for the European market, emphasizing local manufacturing and short supply chains.

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 | Exiom | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 39 | 89 | +50 |
| Max Power | 605 W | 675 W | +70 W |
| Avg Power | 461 W | 468 W | +7 W |


## Efficiency


| Measure | Exiom | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.40% | 23.20% | +0.20 pp |
| Avg Efficiency | 20.12% | 21.21% | +1.09 pp |


## Reliability & Warranty


| Measure | Exiom | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.338%/°C | -0.325%/°C | +0.014 |
| Bifacial Share | 23 (59%) | 35 (39%) | +20 pp |
| Avg Warranty | 29.4 yrs | 27.0 yrs | +2.4 yr |


## Efficiency distribution

Exiom skews to higher efficiency: 13% of lineup is 23%+


| Efficiency band | Exiom | Q-Cells |
| --- | --- | --- |
| \<20% | 9 (23.1%) | 7 (7.9%) |
| 20-21% | 12 (30.8%) | 29 (32.6%) |
| 21-22% | 7 (17.9%) | 30 (33.7%) |
| 22-23% | 6 (15.4%) | 21 (23.6%) |
| 23%+ | 5 (12.8%) | 2 (2.2%) |


## Power distribution

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


| Power band | Exiom | Q-Cells |
| --- | --- | --- |
| \<400W | 9 (23.1%) | 20 (22.5%) |
| 400-499W | 15 (38.5%) | 41 (46.1%) |
| 500-599W | 13 (33.3%) | 11 (12.4%) |
| 600-699W | 2 (5.1%) | 17 (19.1%) |


## Cell technology

Dominant cell tech: **PERC** (69%)

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


| Technology | Exiom | Q-Cells |
| --- | --- | --- |
| PERC | 27 (69.2%) | 38 (42.7%) |
| TOPCon | 12 (30.8%) | 8 (9.0%) |
| N-type | 0 | 23 (25.8%) |
| Unknown | 0 | 20 (22.5%) |


## Top panels, Exiom


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [EX605TC-144HC182BF](https://comparepv.com/panel/exiom-ex605tc-144hc182bf) | 605 | 23.4 | -0.280 | Monocrystalline |
| 2 | [EX600TC-144HC182BF](https://comparepv.com/panel/exiom-ex600tc-144hc182bf) | 600 | 23.2 | -0.280 | Monocrystalline |
| 3 | [EX595TC-144HC182BF](https://comparepv.com/panel/exiom-ex595tc-144hc182bf) | 595 | 23.0 | -0.280 | Monocrystalline |
| 4 | [EX590TC-144HC182BF](https://comparepv.com/panel/exiom-ex590tc-144hc182bf) | 590 | 22.8 | -0.280 | Monocrystalline |
| 5 | [EX585TC-144HC182BF](https://comparepv.com/panel/exiom-ex585tc-144hc182bf) | 585 | 22.6 | -0.280 | Monocrystalline |
| 6 | [EX560MB(144)182](https://comparepv.com/panel/exiom-ex560mb-144-182) | 560 | 21.7 | -0.350 | Monocrystalline |
| 7 | [EX555MB(144)182](https://comparepv.com/panel/exiom-ex555mb-144-182) | 555 | 21.5 | -0.350 | Monocrystalline |
| 8 | [EX550MB-144BF](https://comparepv.com/panel/exiom-ex550mb-144bf) | 550 | 21.3 | -0.350 | Monocrystalline |
| 9 | [EX550MB(144)182](https://comparepv.com/panel/exiom-ex550mb-144-182) | 550 | 21.3 | -0.350 | Monocrystalline |
| 10 | [EX545MB-144BF](https://comparepv.com/panel/exiom-ex545mb-144bf) | 545 | 21.1 | -0.350 | 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

Exiom is a Spanish solar module manufacturer headquartered in Asturias, founded in 2009. The company operates production facilities in China with a reported aggregate capacity of around 2.7 GW, and in 2024 opened Spain's first large-scale photovoltaic module factory in Langreo through a strategic partnership with Iberdrola, adding approximately 500 MW of European-made capacity. Exiom claims Tier 1 bankability status and is notable as one of the very few European-origin brands to appear on mainstream manufacturer bankability lists. Q Cells, by contrast, traces its roots to Thalheim, Germany, where it was founded in 1999 as a crystalline silicon research pioneer, and is now owned by South Korean conglomerate Hanwha Group. Hanwha Q Cells holds a confirmed S&P Global Tier 1 designation for 2025 and long-standing BloombergNEF Tier 1 recognition, with global module production capacity exceeding 11 GW and projected shipments above 9 GW in 2025 alone, including a 3.3 GW facility in Cartersville, Georgia. In terms of institutional scale and financier recognition, Q Cells holds a substantially stronger footprint.

On the product side, Exiom's catalog spans both PERC and TOPCon technologies and includes bifacial modules in higher-wattage configurations - its positioning leans toward B2B commercial and industrial applications, though residential all-black monocrystalline panels are also offered. Q Cells organizes its lineup around two principal families: the Q.PEAK DUO series, built on PERC technology and aimed at cost-sensitive residential and commercial rooftop work, and the Q.TRON series, which deploys the company's proprietary Q.ANTUM NEO TOPCon N-type technology for buyers seeking higher efficiency and lower annual degradation. The Q.TRON range targets premium residential rooftops and mid-scale commercial projects, while larger Q.PEAK DUO configurations suit utility-adjacent commercial work.

For most buyers in 2025, Q Cells is the safer default - its manufacturing presence across the US and Europe, deep installer network, independently verified Tier 1 status, and well-documented 25-year warranty track record reduce procurement and financing risk considerably. Exiom is a credible, genuinely European alternative worth considering for buyers who prioritize supply-chain provenance within Spain or the EU, but its smaller institutional profile means bankability due diligence is more important before committing to a large project.

\---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.iberdrola.com/press-room/news/detail/we-partner-with-exiom-from-asturias-to-lead-the-manufacturing-of-photovoltaic-solar-panels-in-spain \| Iberdrola partners with Exiom to lead solar panel manufacturing in Spain \| article

\- https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-named-an-s-p-global-2025-tier-1-cleantech-company.do \| Hanwha Qcells named S&P Global 2025 Tier 1 cleantech company \| article

\- https://comparepv.com/reviews/exiom \| Exiom Solar Panels Review 2026: Pros, Cons and Specs - ComparePV \| review

Sources:

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

\- \[Iberdrola partners with Exiom for solar manufacturing in Spain\](https://www.iberdrola.com/press-room/news/detail/we-partner-with-exiom-from-asturias-to-lead-the-manufacturing-of-photovoltaic-solar-panels-in-spain)

\- \[Hanwha Qcells named S&P Global 2025 Tier 1 cleantech company\](https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-named-an-s-p-global-2025-tier-1-cleantech-company.do)

\- \[Exiom Solar Panels Review 2026 - ComparePV\](https://comparepv.com/reviews/exiom)

\- \[Hanwha Qcells Cartersville 3.3 GW factory announcement\](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.


## Other comparisons

- [Exiom vs A.B. Energy](https://comparepv.com/exiom-vs-a-b-energy)
- [AE Solar vs Q-Cells](https://comparepv.com/ae-solar-vs-q-cells)
- [Exiom vs AEET](https://comparepv.com/exiom-vs-aeet)
- [AIKO vs Q-Cells](https://comparepv.com/aiko-vs-q-cells)
- [Exiom vs AKCOME](https://comparepv.com/exiom-vs-akcome)
- [ARTsolar vs Q-Cells](https://comparepv.com/artsolar-vs-q-cells)


---

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

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