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

# Canadian Solar vs Just Solar

Canadian Solar has the broader catalog (292 vs 42 models). Canadian Solar leads on peak efficiency at 24.40%. Canadian Solar leans bifacial (46% of lineup).


## The two companies


| Attribute | Canadian Solar | Just 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 | Just Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 42 | +250 |
| Max Power | 730 W | 740 W | +10 W |
| Avg Power | 472 W | 491 W | +19 W |


## Efficiency


| Measure | Canadian Solar | Just Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 23.82% | +0.58 pp |
| Avg Efficiency | 20.66% | 22.08% | +1.42 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Just Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.306%/°C | +0.025 |
| Bifacial Share | 133 (46%) | 7 (17%) | +29 pp |
| Avg Warranty | 28.2 yrs | 28.5 yrs | +0.2 yr |


## Efficiency distribution

Just Solar skews to higher efficiency: 33% of lineup is 23%+


| Efficiency band | Canadian Solar | Just Solar |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 0 |
| 20-21% | 36 (12.3%) | 8 (19.0%) |
| 21-22% | 41 (14.0%) | 14 (33.3%) |
| 22-23% | 50 (17.1%) | 6 (14.3%) |
| 23%+ | 37 (12.7%) | 14 (33.3%) |


## Power distribution

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


| Power band | Canadian Solar | Just Solar |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 7 (16.7%) |
| 400-499W | 72 (24.7%) | 21 (50.0%) |
| 500-599W | 45 (15.4%) | 7 (16.7%) |
| 600-699W | 64 (21.9%) | 0 |
| 700W+ | 7 (2.4%) | 7 (16.7%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (52%)


| Technology | Canadian Solar | Just Solar |
| --- | --- | --- |
| PERC | 195 (66.8%) | 0 |
| TOPCon | 85 (29.1%) | 22 (52.4%) |
| HJT | 12 (4.1%) | 7 (16.7%) |
| Back Contact | 0 | 13 (31.0%) |


## 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 |


## Top panels, Just Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 | 23.8 | -0.260 | Monocrystalline |
| 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 | 23.7 | -0.260 | Monocrystalline |
| 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 | 23.5 | -0.260 | Monocrystalline |
| 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 | 23.3 | -0.260 | Monocrystalline |
| 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 | 23.2 | -0.260 | Monocrystalline |
| 6 | [JST-FCMH-715W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-715w-hd) | 715 | 23.0 | -0.260 | Monocrystalline |
| 7 | [JST-FCMH-710W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-710w-hd) | 710 | 22.9 | -0.260 | Monocrystalline |
| 8 | [JST-EBMH-560W-D](https://comparepv.com/panel/just-solar-jst-ebmh-560w-d) | 560 | 21.9 | -0.360 | Monocrystalline |
| 9 | [JST-EBMH-555W-D](https://comparepv.com/panel/just-solar-jst-ebmh-555w-d) | 555 | 21.7 | -0.360 | Monocrystalline |
| 10 | [JST-EBMH-550W-D](https://comparepv.com/panel/just-solar-jst-ebmh-550w-d) | 550 | 21.5 | -0.360 | Monocrystalline |


## Summary

Canadian Solar is a Canadian manufacturer headquartered in Guelph, Ontario, founded in 2001 by Dr. Shawn Qu and publicly listed on Nasdaq since 2006 (CSIQ). It is widely recognized as one of the most bankable Tier 1 manufacturers globally, again named to S&P Global Energy's Premier Tier 1 Cleantech Companies list in 2026, with module production capacity targeted at roughly 51-56 GW per year by end of 2026, including an expanding factory footprint in Texas. Just Solar Group is a Chinese manufacturer founded in 2010, operating factories in Zhejiang along with additional production lines in Europe and Vietnam, with capacity around 1.2 GW per year - a substantially smaller scale, and without a confirmed listing on the BloombergNEF Tier 1 list. In terms of institutional footprint and financial bankability, Canadian Solar holds a clear edge.

Canadian Solar's portfolio spans residential rooftop panels through to utility-scale and commercial and industrial (C&I) modules, built around TOPCon (TOPHiKu and TOPBiHiKu series) and HJT (HiHero series) cell technology, with modules reaching up to 690 W output and hail-resistance testing aimed at utility-scale deployments. Just Solar's lineup centers on monocrystalline half-cut modules, such as the JST450M line sold through European distributors, typically backed by a 10-year product warranty and a 25-year linear power warranty, and is positioned mainly toward residential and small commercial rooftop installations.

For a typical buyer, whether a homeowner or a developer of larger commercial and utility projects, Canadian Solar is the safer default choice given its confirmed Tier 1 bankability, long operating history, and global manufacturing scale, which generally translates into easier financing and stronger long-term warranty assurance. Just Solar can be a reasonable budget-oriented option for smaller residential installations, provided the buyer accepts a smaller manufacturer scale and a less documented bankability track record - the two brands are not fully interchangeable, and the right choice depends on project size and risk tolerance.

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 Just Solar](https://comparepv.com/ae-solar-vs-just-solar)
- [Canadian Solar vs AEET](https://comparepv.com/canadian-solar-vs-aeet)
- [AIKO vs Just Solar](https://comparepv.com/aiko-vs-just-solar)
- [Canadian Solar vs AKCOME](https://comparepv.com/canadian-solar-vs-akcome)
- [ARTsolar vs Just Solar](https://comparepv.com/artsolar-vs-just-solar)


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

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