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

# Canadian Solar vs Sunplus

Canadian Solar has the broader catalog (292 vs 11 models). Canadian Solar leads on peak efficiency at 24.40%. Sunplus leans bifacial (100% of lineup).


## The two companies


| Attribute | Canadian Solar | Sunplus |
| --- | --- | --- |
| 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 | Sunplus | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 11 | +281 |
| Max Power | 730 W | 750 W | +20 W |
| Avg Power | 472 W | 670 W | +199 W |


## Efficiency


| Measure | Canadian Solar | Sunplus | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 24.10% | +0.30 pp |
| Avg Efficiency | 20.66% | 22.42% | +1.76 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Sunplus | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.318%/°C | +0.013 |
| Bifacial Share | 133 (46%) | 11 (100%) | +54 pp |
| Avg Warranty | 28.2 yrs | 30.0 yrs | +1.8 yr |


## Efficiency distribution

Sunplus skews to higher efficiency: 55% of lineup is 23%+


| Efficiency band | Canadian Solar | Sunplus |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 0 |
| 20-21% | 36 (12.3%) | 3 (27.3%) |
| 21-22% | 41 (14.0%) | 2 (18.2%) |
| 22-23% | 50 (17.1%) | 0 |
| 23%+ | 37 (12.7%) | 6 (54.5%) |


## Power distribution

Sunplus offers more 600W+ panels (64% of lineup)


| Power band | Canadian Solar | Sunplus |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 0 |
| 400-499W | 72 (24.7%) | 0 |
| 500-599W | 45 (15.4%) | 4 (36.4%) |
| 600-699W | 64 (21.9%) | 1 (9.1%) |
| 700W+ | 7 (2.4%) | 6 (54.5%) |


## Cell technology

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

Dominant cell tech: **HJT** (55%)


| Technology | Canadian Solar | Sunplus |
| --- | --- | --- |
| PERC | 195 (66.8%) | 5 (45.5%) |
| TOPCon | 85 (29.1%) | 0 |
| HJT | 12 (4.1%) | 6 (54.5%) |


## 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, Sunplus


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [750](https://comparepv.com/panel/sunplus-750) | 750 | 24.1 | -0.300 | Monocrystalline |
| 2 | [745](https://comparepv.com/panel/sunplus-745) | 745 | 24.0 | -0.300 | Monocrystalline |
| 3 | [740](https://comparepv.com/panel/sunplus-740) | 740 | 23.8 | -0.300 | Monocrystalline |
| 4 | [735](https://comparepv.com/panel/sunplus-735) | 735 | 23.7 | -0.300 | Monocrystalline |
| 5 | [730](https://comparepv.com/panel/sunplus-730) | 730 | 23.5 | -0.300 | Monocrystalline |
| 6 | [725](https://comparepv.com/panel/sunplus-725) | 725 | 23.3 | -0.300 | Monocrystalline |
| 7 | [SR5-60HBD-600M](https://comparepv.com/panel/sunplus-sr5-60hbd-600m) | 600 | 21.2 | -0.340 | Monocrystalline |
| 8 | [SR5-60HBD-595M](https://comparepv.com/panel/sunplus-sr5-60hbd-595m) | 595 | 21.0 | -0.340 | Monocrystalline |
| 9 | [SR5-60HBD-590M](https://comparepv.com/panel/sunplus-sr5-60hbd-590m) | 590 | 20.8 | -0.340 | Monocrystalline |
| 10 | [SR5-60HBD-585M](https://comparepv.com/panel/sunplus-sr5-60hbd-585m) | 585 | 20.7 | -0.340 | Monocrystalline |


## Summary

Canadian Solar is a Canadian manufacturer headquartered in Kitchener, Ontario, founded in 2001, with two decades of operating history and a consistent presence on BloombergNEF's Tier 1 bankability list; its module manufacturing capacity exceeds 50 GW per year. Sunplus Optimum is a much newer brand, founded in 2022 and based in Albany, New York, operating as a contract manufacturer (OEM/ODM) with assembly in the US and Panama and a global production capacity of roughly 6.5 GW. In terms of scale, track record and institutional credibility, Canadian Solar holds a clearly stronger footprint.

Canadian Solar's product range spans the HiKu and TOPHiKu6 lines for residential rooftops to bifacial TOPBiHiKu7 modules built for utility-scale and large commercial projects, using both PERC and newer TOPCon cell technology. Sunplus focuses on N-type, HJT, TOPCon and shingled-cell modules, alongside energy storage systems and inverters, and primarily targets developers and EPCs in North America and Western Europe rather than a broad international dealer network.

For a typical international buyer, Canadian Solar remains the safer default thanks to its longer operating history, broader service infrastructure and stronger standing with project financiers. Sunplus can be a reasonable option where its US/Panama supply chain or specific product line fits the project, but it has not yet built a comparable track record or global distribution footprint, so buyers should weigh warranty support and local availability carefully before choosing it over an established Tier 1 incumbent.

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


## Other comparisons

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


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

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