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

# Q-Cells vs Solplanet

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


## The two companies


| Attribute | Q-Cells | Solplanet |
| --- | --- | --- |
| Country | South Korea | China |
| Headquarters | Seoul | Shanghai |
| Founded | 1999 | 2007 |
| Employees | 2000+ | 127 |
| Annual capacity | 11.2 GW/year | 10 GW/year |
| Tier 1 | yes |  |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://www.solplanet.net](https://www.solplanet.net) |

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...

Solplanet, a brand of AISWEI, manufactures user-friendly and reliable solar inverters, EV chargers and monitoring solutions. AISWEI, formerly SMA's Chinese subsidiary, has been manufacturing high-quality products since 2007. The company is driven by the idea of 'solar for everybody', making solar energy accessible...


## Catalog & Power


| Measure | Q-Cells | Solplanet | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 0 | +89 |
| Max Power | 675 W | 0 W | +675 W |
| Avg Power | 468 W | 0 W | +468 W |


## Efficiency


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


## Reliability & Warranty


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


## Efficiency distribution

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


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


## Power distribution

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


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


## Cell technology

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


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

Q-Cells is a South Korean and German solar manufacturer, founded in Germany in 1999 and now operating as Hanwha Qcells under Korean conglomerate Hanwha, with manufacturing in South Korea, the United States, and Malaysia. It holds Top Tier Class bankability status in BloombergNEF reports and sits consistently on the BloombergNEF Tier 1 list, with annual module production capacity reported around 11 GW as of late 2025. Solplanet, by contrast, is a brand of AISWEI, a Shanghai-headquartered company founded in 2009 that began as the Chinese manufacturing arm of Germany's SMA before launching its own Solplanet-branded products in 2019. AISWEI reports roughly 10 GW of annual production capacity and ranks among the top global suppliers of residential inverters and storage systems, but it is important to note that Solplanet is primarily an inverter and battery-storage brand rather than a solar panel manufacturer, so direct panel-to-panel comparisons with Q-Cells are not well supported by available sources. On institutional footprint, Q-Cells has the stronger and longer-established position specifically in panel manufacturing and bankability.

Q-Cells' product lineup, such as the Q.TRON series, targets premium residential and commercial rooftops, with independent testing noting efficiencies up to around 23.7 percent and strong temperature coefficients that aid performance in hot climates; the company uses advanced cell technology and has also expanded into utility-scale supply through its US manufacturing base. Solplanet's relevant offerings are string inverters, hybrid inverters, and all-in-one battery systems for single-phase and three-phase residential and small commercial installations, often paired with third-party solar panels rather than its own.

For a typical buyer in 2025 seeking solar panels specifically, Q-Cells is the more directly comparable and better-documented choice given its Tier 1 bankability and dedicated module manufacturing track record. Solplanet is better evaluated as a complementary inverter or battery brand rather than as a panel competitor to Q-Cells, so the two brands are not truly interchangeable within the panel category.

\---LINKS---

\- https://www.q-cells.eu/press-releases/detail?tx\_news\_pi1%5Baction%5D=detail&tx\_news\_pi1%5Bcontroller%5D=News&tx\_news\_pi1%5Bnews%5D=50 \| Qcells achieves Top Tier Class bankability score in BloombergNEF report \| article

\- https://www.cleanenergyreviews.info/blog/q-cells-solar-panels-review \| Q Cells Solar and battery independent review \| review

\- https://www.energysage.com/solar/best-solar-panels-complete-ranking/q-cells-solar-panels-complete-review/ \| Q CELLS Solar Panels: The Complete Review \| review

\- https://www.pv-magazine.com/2024/04/03/solplanet-launches-new-inverters-for-rooftop-insallations/ \| Solplanet launches new inverters for rooftop installations \| article

\- https://www.pv-tech.org/industry-updates/solis-earns-tier-1-recognition-from-sp-global-energy-and-bloombergnef/ \| Context on BloombergNEF Tier 1 inverter recognition criteria \| article

Written by claude-sonnet-5 from the figures above.


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- [Q-Cells vs A.B. Energy](https://comparepv.com/q-cells-vs-a-b-energy)
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- [AIKO vs Solplanet](https://comparepv.com/aiko-vs-solplanet)
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- [ARTsolar vs Solplanet](https://comparepv.com/artsolar-vs-solplanet)


---

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

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