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

# Canadian Solar vs Resun Solar

Canadian Solar has the broader catalog (292 vs 236 models). Canadian Solar leads on peak efficiency at 24.40%. Canadian Solar leans bifacial (46% of lineup).


## The two companies


| Attribute | Canadian Solar | Resun Solar |
| --- | --- | --- |
| Country | Canada | China |
| Headquarters | Kitchener | Suzhou |
| Founded | 2001 | 2007 |
| Employees | 17,113 |  |
| Annual capacity | 51 GW/year | 1 GW/year |
| Tier 1 | yes |  |
| Listed | NASDAQ: CSIQ |  |
| Website | [https://www.canadiansolar.com](https://www.canadiansolar.com) | [http://www.resunsolar.com](http://www.resunsolar.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.

Resun Solar Energy Co., Ltd. specializes in developing and manufacturing high-quality, cost-effective photovoltaic solar modules. With factories accredited by ISO9001 & 14001, their panels are certified by TUV, IEC61215, IEC61730, and other international quality systems. The company's sales network spans over 80...


## Catalog & Power


| Measure | Canadian Solar | Resun Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 236 | +56 |
| Max Power | 730 W | 735 W | +5 W |
| Avg Power | 472 W | 510 W | +38 W |


## Efficiency


| Measure | Canadian Solar | Resun Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 23.66% | +0.74 pp |
| Avg Efficiency | 20.66% | 21.52% | +0.86 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Resun Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.318%/°C | +0.013 |
| Bifacial Share | 133 (46%) | 73 (31%) | +15 pp |
| Avg Warranty | 28.2 yrs | 30.0 yrs | +1.8 yr |


## Efficiency distribution

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


| Efficiency band | Canadian Solar | Resun Solar |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 28 (11.9%) |
| 20-21% | 36 (12.3%) | 30 (12.7%) |
| 21-22% | 41 (14.0%) | 60 (25.4%) |
| 22-23% | 50 (17.1%) | 101 (42.8%) |
| 23%+ | 37 (12.7%) | 17 (7.2%) |


## Power distribution

Resun Solar offers more 600W+ panels (29% of lineup)


| Power band | Canadian Solar | Resun Solar |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 33 (14.0%) |
| 400-499W | 72 (24.7%) | 80 (33.9%) |
| 500-599W | 45 (15.4%) | 55 (23.3%) |
| 600-699W | 64 (21.9%) | 54 (22.9%) |
| 700W+ | 7 (2.4%) | 14 (5.9%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (66%)


| Technology | Canadian Solar | Resun Solar |
| --- | --- | --- |
| PERC | 195 (66.8%) | 0 |
| TOPCon | 85 (29.1%) | 155 (65.7%) |
| HJT | 12 (4.1%) | 0 |
| Unknown | 0 | 81 (34.3%) |


## 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 |


## Top panels, Resun Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [RS9H-M TOPCON-735](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-735) | 735 | 23.7 | -0.300 | Monocrystalline |
| 2 | [RS9H-M TOPCON-730](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-730) | 730 | 23.5 | -0.300 | Monocrystalline |
| 3 | [RS9H-M TOPCON-725](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-725) | 725 | 23.3 | -0.300 | Monocrystalline |
| 4 | [RS9H-M TOPCON-720](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-720) | 720 | 23.2 | -0.300 | Monocrystalline |
| 5 | [RS9H-M-720](https://comparepv.com/panel/resun-solar-rs9h-m-720) | 720 | 23.2 | -0.300 | Monocrystalline |
| 6 | [RS9H-M-DG-720](https://comparepv.com/panel/resun-solar-rs9h-m-dg-720) | 720 | 23.2 | -0.300 | Monocrystalline |
| 7 | [RS9H-M-715](https://comparepv.com/panel/resun-solar-rs9h-m-715) | 715 | 23.0 | -0.300 | Monocrystalline |
| 8 | [RS9H-M-DG-715](https://comparepv.com/panel/resun-solar-rs9h-m-dg-715) | 715 | 23.0 | -0.300 | Monocrystalline |
| 9 | [RS9H-M-710](https://comparepv.com/panel/resun-solar-rs9h-m-710) | 710 | 22.9 | -0.300 | Monocrystalline |
| 10 | [RS9H-M-DG-710](https://comparepv.com/panel/resun-solar-rs9h-m-dg-710) | 710 | 22.9 | -0.300 | Monocrystalline |


## Summary

Canadian Solar is a Canadian manufacturer headquartered in Kitchener, Ontario, founded in 2001 and publicly listed on NASDAQ since 2006. It appears on S&P Global Commodity Insights' Tier 1 Cleantech Companies list for both PV modules and battery energy storage, runs annual production capacity of roughly 61 GW, and has shipped close to 165 GW of modules cumulatively, placing it among the top five solar manufacturers worldwide. Resun Solar is a Chinese manufacturer based in Changzhou, Jiangsu province, founded in 2005, operating at a much smaller scale with reported annual capacity in the 1-3 GW range, and it does not appear on published Tier 1 bankability lists. In terms of institutional footprint and financial track record, Canadian Solar holds a clear edge.

Canadian Solar's lineup spans TOPCon-based n-type modules (the TOPHiKu6 and TOPBiHiKu7 series) and heterojunction HJT panels (the HiHero series), covering residential rooftop, commercial and industrial, and utility-scale ground-mount projects. Resun Solar focuses mainly on monocrystalline modules, including some TOPCon cells, in the roughly 420W to 590W range, with average efficiency around 22.3 percent, TUV, UL and CE certification, and a standard 30-year performance warranty, and it is positioned primarily for residential and smaller commercial installations rather than large utility projects.

For a typical international buyer prioritizing bankability, financing access, and long-term supplier stability, Canadian Solar is the safer default given its Tier 1 status and manufacturing scale. Resun Solar can be a reasonable lower-cost option for smaller residential jobs, but installers and buyers should verify warranty backing and supply continuity more carefully, since the brand lacks a comparable bankability track record.

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


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


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

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