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

# Aptos Solar vs Q-Cells

Q-Cells has the broader catalog (89 vs 33 models). Q-Cells leads on peak efficiency at 23.20%. Aptos Solar leans bifacial (52% of lineup).


## The two companies


| Attribute | Aptos Solar | Q-Cells |
| --- | --- | --- |
| Country | USA | South Korea |
| Headquarters | San Antonio, TX | Seoul |
| Founded | 2019 | 1999 |
| Employees | 14 | 2000+ |
| Annual capacity |  | 11.2 GW/year |
| Tier 1 |  | yes |
| Listed |  | NASDAQ: HQCL |
| Website | [https://www.aptossolar.com](https://www.aptossolar.com) | [https://www.qcells.com](https://www.qcells.com) |

Aptos Solar Technology is a U.S. based company that leverages global sourcing to provide innovative and affordable solar technology. They offer high-performance solar panels optimized with their patented Dual Nano Absorber (DNA) technology for residential, commercial, and utility applications. The company is committed...

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 | Aptos Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 33 | 89 | +56 |
| Max Power | 550 W | 675 W | +125 W |
| Avg Power | 432 W | 468 W | +37 W |


## Efficiency


| Measure | Aptos Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 21.29% | 23.20% | +1.91 pp |
| Avg Efficiency | 20.58% | 21.21% | +0.64 pp |


## Reliability & Warranty


| Measure | Aptos Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.334%/°C | -0.325%/°C | +0.009 |
| Bifacial Share | 17 (52%) | 35 (39%) | +12 pp |
| Avg Warranty | 30.0 yrs | 27.0 yrs | +3.0 yr |


## Efficiency distribution

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


| Efficiency band | Aptos Solar | Q-Cells |
| --- | --- | --- |
| \<20% | 5 (15.2%) | 7 (7.9%) |
| 20-21% | 20 (60.6%) | 29 (32.6%) |
| 21-22% | 8 (24.2%) | 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 | Aptos Solar | Q-Cells |
| --- | --- | --- |
| \<400W | 6 (18.2%) | 20 (22.5%) |
| 400-499W | 24 (72.7%) | 41 (46.1%) |
| 500-599W | 3 (9.1%) | 11 (12.4%) |
| 600-699W | 0 | 17 (19.1%) |


## Cell technology

Dominant cell tech: **PERC** (100%)

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


| Technology | Aptos Solar | Q-Cells |
| --- | --- | --- |
| PERC | 33 (100.0%) | 38 (42.7%) |
| N-type | 0 | 23 (25.8%) |
| Unknown | 0 | 20 (22.5%) |
| TOPCon | 0 | 8 (9.0%) |


## Top panels, Aptos Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [DNA-144-BF10-550W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-550w-dg) | 550 | 21.3 | -0.335 | Monocrystalline |
| 2 | [DNA-144-BF10-545W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-545w-dg) | 545 | 21.1 | -0.335 | Monocrystalline |
| 3 | [DNA-144-BF10-540W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-540w-dg) | 540 | 20.9 | -0.335 | Monocrystalline |
| 4 | [DNA-120-MF10-460W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-460w) | 460 | 21.3 | -0.350 | Monocrystalline |
| 5 | [DNA-120-BF10-460W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-460w) | 460 | 21.3 | -0.350 | Monocrystalline |
| 6 | [DNA-120-MF10-455W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-455w) | 455 | 21.0 | -0.350 | Monocrystalline |
| 7 | [DNA-120-BF10-455W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-455w) | 455 | 21.0 | -0.350 | Monocrystalline |
| 8 | [DNA-144-MF26-450W](https://comparepv.com/panel/aptos-solar-dna-144-mf26-450w) | 450 | 20.2 | -0.380 | Monocrystalline |
| 9 | [DNA-120-BF10-450W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-450w) | 450 | 20.8 | -0.350 | Monocrystalline |
| 10 | [DNA-120-MF10-450W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-450w) | 450 | 20.8 | -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

Aptos Solar is a California-based manufacturer founded in 2019 by Alex Kim and Thanh Pham, both veterans of Mission Solar Energy. Headquartered in Santa Clara, it is a young, smaller company that has built a presence in the North American residential and commercial markets by emphasizing efficiency at competitive price points. Aptos has not been confirmed as a BloombergNEF Tier 1 manufacturer, which reflects its limited production scale relative to global peers. Q-Cells traces its origins to 1999, when it was established in Thalheim, Germany; after being acquired out of bankruptcy by South Korea's Hanwha Group in 2012, it now operates as Hanwha Q CELLS and holds confirmed BloombergNEF Tier 1 status. Q-Cells runs the largest solar manufacturing facility in the Western Hemisphere in Dalton, Georgia, and according to Wood Mackenzie holds the top market-share position in both U.S. residential and commercial solar. On institutional footprint, Q-Cells is the clear leader.

Aptos Solar's product line is built around its proprietary Dual Nano Absorber (DNA) cell architecture, a multi-busbar design the company says reduces resistive losses and improves shade tolerance. Its panels are targeted at residential rooftops and mid-scale commercial installations where efficiency-per-dollar matters most. Q-Cells offers a considerably broader portfolio serving premium residential, commercial, and utility-scale segments. Its Q.ANTUM technology - a refined PERC architecture - has been its commercial backbone, and the company has been expanding into TOPCon-based modules for higher-efficiency applications.

For most buyers in 2025, Q-Cells is the lower-risk default. Its Tier 1 bankability simplifies project financing, its domestic U.S. manufacturing provides an advantage under current trade and incentive policy, and its decade-long track record under Hanwha ownership provides warranty confidence. Aptos Solar is a credible option for cost-conscious residential buyers who want solid U.S.-market-focused service, but its shorter history and smaller scale mean buyers carry more counterparty risk.

\---LINKS---

\- https://www.solarreviews.com/blog/aptos-solar-panels-expert-review \| Expert Review Of Aptos Solar Panels - SolarReviews \| review

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

\- https://www.energysage.com/supplier/25391/aptos-solar-technology/ \| Aptos Solar Technology - Profile and Reviews - EnergySage \| review

\- https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings \| Tier 1 Solar Panels List 2025 - Updated Manufacturers and Rankings \| article

\- https://www.ecowatch.com/solar/reviews/qcells-solar-panels \| QCells Solar Panels Review 2025 - Cost, Efficiency and Performance \| review

Sources:

\- \[Expert Review Of Aptos Solar Panels - SolarReviews\](https://www.solarreviews.com/blog/aptos-solar-panels-expert-review)

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

\- \[Aptos Solar Technology Profile and Reviews - EnergySage\](https://www.energysage.com/supplier/25391/aptos-solar-technology/)

\- \[Tier 1 Solar Panels List 2025 - RENVU\](https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings)

\- \[QCells Solar Panels Review 2025 - EcoWatch\](https://www.ecowatch.com/solar/reviews/qcells-solar-panels)

Written by claude-sonnet from the figures above.


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


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Source: https://comparepv.com/aptos-solar-vs-q-cells

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