---
title: "Canadian Solar vs QSun Solar - Brand Comparison | ComparePV"
description: "Compare Canadian Solar vs QSun Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/canadian-solar-vs-qsun-solar"
---

# Canadian Solar vs QSun Solar

Canadian Solar has the broader catalog (292 vs 0 models). Canadian Solar leans bifacial (46% of lineup).


## The two companies


| Attribute | Canadian Solar | QSun Solar |
| --- | --- | --- |
| Country | Canada |  |
| Headquarters | Kitchener |  |
| Founded | 2001 |  |
| Employees | 17,113 |  |
| Annual capacity | 51 GW/year |  |
| Tier 1 | yes | no |
| Listed | NASDAQ: CSIQ |  |
| Website | [https://www.canadiansolar.com](https://www.canadiansolar.com) |  |

Canadian Solar Inc. is a global renewable energy company founded in 2001. Headquartered in Kitchener, Ontario, it manufactures solar PV modules and provides battery energy storage solutions. The company also develops utility-scale solar power and battery energy storage projects.


## Catalog & Power


| Measure | Canadian Solar | QSun Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 0 | +292 |
| Max Power | 730 W | 0 W | +730 W |
| Avg Power | 472 W | 0 W | +472 W |


## Efficiency


| Measure | Canadian Solar | QSun Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | - |  |
| Avg Efficiency | 20.66% | - |  |


## Reliability & Warranty


| Measure | Canadian Solar | QSun Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | - |  |
| Bifacial Share | 133 (46%) | 0 (0%) | +46 pp |
| Avg Warranty | 28.2 yrs | - |  |


## Efficiency distribution

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


| Efficiency band | Canadian Solar | QSun Solar |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 0 |
| 20-21% | 36 (12.3%) | 0 |
| 21-22% | 41 (14.0%) | 0 |
| 22-23% | 50 (17.1%) | 0 |
| 23%+ | 37 (12.7%) | 0 |


## Power distribution

Canadian Solar offers more 600W+ panels (24% of lineup)


| Power band | Canadian Solar | QSun Solar |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 0 |
| 400-499W | 72 (24.7%) | 0 |
| 500-599W | 45 (15.4%) | 0 |
| 600-699W | 64 (21.9%) | 0 |
| 700W+ | 7 (2.4%) | 0 |


## Cell technology

Dominant cell tech: **PERC** (67%)


| Technology | Canadian Solar | QSun Solar |
| --- | --- | --- |
| PERC | 195 (66.8%) | 0 |
| TOPCon | 85 (29.1%) | 0 |
| HJT | 12 (4.1%) | 0 |


## Top panels, Canadian Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [CS7N-730TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-730tb-ag) | 730 | 23.5 | -0.290 | Monocrystalline |
| 2 | [CS7N-725TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-725tb-ag) | 725 | 23.3 | -0.290 | Monocrystalline |
| 3 | [CS7N-720TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-720tb-ag) | 720 | 23.2 | -0.290 | Monocrystalline |
| 4 | [CS7N-715TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-715tb-ag) | 715 | 23.0 | -0.290 | Monocrystalline |
| 5 | [CS7N-710TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-710tb-ag) | 710 | 22.9 | -0.290 | Monocrystalline |
| 6 | [CS7N-705TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-705tb-ag) | 705 | 22.7 | -0.290 | Monocrystalline |
| 7 | [CS7N-700TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-700tb-ag) | 700 | 22.5 | -0.290 | Monocrystalline |
| 8 | [CS7N-695TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-695tb-ag) | 695 | 22.4 | -0.290 | Monocrystalline |
| 9 | [CS7N-690TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-690tb-ag) | 690 | 22.2 | -0.290 | Monocrystalline |
| 10 | [CS7N-675MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-675ms) | 675 | 21.7 | -0.340 | Monocrystalline |


## Summary

Canadian Solar is a publicly traded company founded in 2001 and headquartered in Guelph, Ontario, Canada, with the bulk of its manufacturing in China. It has appeared on the S&P Global Commodity Insights Premier List of Tier 1 Cleantech Companies for 2025 and has maintained BloombergNEF Tier 1 bankability status for many consecutive quarters. As of mid-2025 its module production capacity stands at roughly 59 GW, placing it firmly among the five largest solar manufacturers in the world. Q-SUN Solar, by contrast, is a Chinese manufacturer founded in 2014 and headquartered in Nanjing, Jiangsu, with an annual module capacity reported above 4 GW. No independent confirmation of a BNEF Tier 1 listing for Q-SUN Solar appeared in available sources, which reflects its significantly smaller institutional footprint relative to Canadian Solar.

Canadian Solar's main residential and light-commercial offerings are the HiKu6 series, based on mature PERC cell technology, and the TOPHiKu6 series, which uses N-type TOPCon cells and reaches up to roughly 23% module efficiency. These lines target premium residential rooftops, mid-scale commercial rooftops, and utility-scale ground-mount projects alike. SolarReviews named Canadian Solar its top panel brand for 2025, and EnergySage places it among its highest-ranked brands, citing consistent availability and strong warranty terms - a 12-year product warranty and a 30-year linear power output guarantee. Q-SUN Solar also builds on N-type TOPCon technology, marketing its Onyx series (full-black bifacial double-glass panels aimed at aesthetics-conscious residential buyers) and its Mercury series (large-format modules up to 720 W targeting commercial and utility buyers). Q-SUN claims first-year degradation below 1% and a 30-year linear power warranty, but these figures come from the manufacturer's own materials and have not been independently validated in published reviews.

For most buyers in 2025, Canadian Solar is the safer default: its Tier 1 bankability eases project financing, its multi-decade track record reduces long-term counterparty risk, and its global service network is well-established. Q-SUN Solar may appeal to budget-sensitive commercial buyers or integrators who have vetted the brand locally, but the absence of independent performance data and a confirmed BNEF listing warrants additional due diligence before committing at scale.

\---LINKS---

\- https://www.solarreviews.com/blog/canadian-solar-panels-expert-review \| Canadian Solar Panels 2025 Expert Review - SolarReviews \| review

\- https://www.energysage.com/solar/best-solar-panels-complete-ranking/canadian-solar-panels-complete-review/ \| Canadian Solar Panels Complete Review - EnergySage \| review

\- https://www.prnewswire.com/news-releases/canadian-solar-makes-sp-global-commodity-insights-premier-list-of-tier-1-cleantech-companies-2025-302553562.html \| Canadian Solar Makes S&P Global Tier 1 Cleantech Companies 2025 List \| article

\- https://energypal.com/best-solar-panels-for-homes/q-sun \| Q-SUN Solar Panels Buyer's Guide - EnergyPal \| review

\- https://www.enfsolar.com/q-sun-solar \| Q-SUN Anhui Co. Ltd Solar Panels Profile - ENF Solar \| article

Sources:

\- \[Canadian Solar Panels 2025 Expert Review - SolarReviews\](https://www.solarreviews.com/blog/canadian-solar-panels-expert-review)

\- \[Canadian Solar Panels Complete Review - EnergySage\](https://www.energysage.com/solar/best-solar-panels-complete-ranking/canadian-solar-panels-complete-review/)

\- \[Canadian Solar Makes S&P Global Tier 1 Cleantech Companies 2025 List\](https://www.prnewswire.com/news-releases/canadian-solar-makes-sp-global-commodity-insights-premier-list-of-tier-1-cleantech-companies-2025-302553562.html)

\- \[Q-SUN Solar Panels Buyer's Guide - EnergyPal\](https://energypal.com/best-solar-panels-for-homes/q-sun)

\- \[Q-SUN Anhui Co. Ltd Solar Panels Profile - ENF Solar\](https://www.enfsolar.com/q-sun-solar)

Written by claude-sonnet from the figures above.


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- [Canadian Solar vs A.B. Energy](https://comparepv.com/canadian-solar-vs-a-b-energy)
- [AE Solar vs QSun Solar](https://comparepv.com/ae-solar-vs-qsun-solar)
- [Canadian Solar vs AEET](https://comparepv.com/canadian-solar-vs-aeet)
- [AIKO vs QSun Solar](https://comparepv.com/aiko-vs-qsun-solar)
- [Canadian Solar vs AKCOME](https://comparepv.com/canadian-solar-vs-akcome)
- [ARTsolar vs QSun Solar](https://comparepv.com/artsolar-vs-qsun-solar)


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Source: https://comparepv.com/canadian-solar-vs-qsun-solar

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