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

# Canadian Solar vs Longi Solar

Canadian Solar has the broader catalog (292 vs 255 models). Longi Solar leads on peak efficiency at 25.00%.


## The two companies


| Attribute | Canadian Solar | Longi Solar |
| --- | --- | --- |
| Country | Canada | China |
| Headquarters | Kitchener | Xi'an, Shaanxi |
| Founded | 2001 | 2000 |
| Employees | 17,113 | 37,853 |
| Annual capacity | 51 GW/year | 85-90 GW/year |
| Tier 1 | yes | yes |
| Listed | NASDAQ: CSIQ | Shanghai Stock Exchange: 601012 |
| Website | [https://www.canadiansolar.com](https://www.canadiansolar.com) | [https://www.longi.com](https://www.longi.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.

LONGi Green Energy Technology Co., Ltd. is a world-leading solar technology company that manufactures monocrystalline silicon wafers and modules. The company is committed to providing high-efficiency and reliable clean energy solutions for large-scale power plants, various industries, and households. LONGi aims to be...


## Catalog & Power


| Measure | Canadian Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 255 | +37 |
| Max Power | 730 W | 670 W | +60 W |
| Avg Power | 472 W | 544 W | +72 W |


## Efficiency


| Measure | Canadian Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 25.00% | +0.60 pp |
| Avg Efficiency | 20.66% | 22.65% | +1.99 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.291%/°C | +0.040 |
| Bifacial Share | 133 (46%) | 101 (40%) | +6 pp |
| Avg Warranty | 28.2 yrs | 27.8 yrs | +0.4 yr |


## Efficiency distribution

Longi Solar skews to higher efficiency: 43% of lineup is 23%+


| Efficiency band | Canadian Solar | Longi Solar |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 3 (1.2%) |
| 20-21% | 36 (12.3%) | 26 (10.2%) |
| 21-22% | 41 (14.0%) | 47 (18.4%) |
| 22-23% | 50 (17.1%) | 70 (27.5%) |
| 23%+ | 37 (12.7%) | 109 (42.7%) |


## Power distribution

Longi Solar offers more 600W+ panels (38% of lineup)


| Power band | Canadian Solar | Longi Solar |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 8 (3.1%) |
| 400-499W | 72 (24.7%) | 81 (31.8%) |
| 500-599W | 45 (15.4%) | 70 (27.5%) |
| 600-699W | 64 (21.9%) | 96 (37.6%) |
| 700W+ | 7 (2.4%) | 0 |


## Cell technology

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

Dominant cell tech: **N-type** (42%)


| Technology | Canadian Solar | Longi Solar |
| --- | --- | --- |
| PERC | 195 (66.8%) | 51 (20.0%) |
| TOPCon | 85 (29.1%) | 0 |
| HJT | 12 (4.1%) | 0 |
| N-type | 0 | 107 (42.0%) |
| Unknown | 0 | 55 (21.6%) |
| Back Contact | 0 | 42 (16.5%) |


## 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, Longi Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 2 | [LR8-66HYD-670M](https://comparepv.com/panel/longi-lr8-66hyd-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 3 | [LR7-72HVH-670M](https://comparepv.com/panel/longi-lr7-72hvh-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 4 | [LR7-72HVHF-665M](https://comparepv.com/panel/longi-lr7-72hvhf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 5 | [LR7-72HVDF-665M](https://comparepv.com/panel/longi-lr7-72hvdf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 6 | [LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 7 | [LR8-66HYD-665M](https://comparepv.com/panel/longi-lr8-66hyd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 8 | [LR7-72HVD-665M](https://comparepv.com/panel/longi-lr7-72hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 9 | [LR7-72HVH-665M](https://comparepv.com/panel/longi-lr7-72hvh-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 10 | [LR7-72HVHF-660M](https://comparepv.com/panel/longi-lr7-72hvhf-660m) | 660 | 24.4 | -0.260 | Monocrystalline |


## Summary

Canadian Solar is a Chinese manufacturer incorporated in Canada and publicly listed on the NASDAQ since 2006, with its operational headquarters in Suzhou, China. The company holds Tier 1 status on the S&P Global Commodity Insights Cleantech list and reports a module production capacity of approximately 61 GW, having shipped around 24.3 GW of modules in 2025. LONGi Solar, headquartered in Xi'an, China and founded in 2000, has maintained a BloombergNEF Tier 1 ranking continuously and achieved a double Tier 1 distinction covering both PV modules and energy storage in the Q1 2026 report. LONGi targets module shipments of roughly 80 GW annually, placing it among the highest-volume solar manufacturers globally. Measured by institutional bankability and technology investment, LONGi currently holds a slight edge as the world's largest monocrystalline silicon manufacturer by most industry benchmarks.

Canadian Solar's current portfolio centers on n-type TOPCon technology across its HiKu7 and TopHiKu series, with panel efficiencies confirmed by Taiyang News listings at around 22.6% for its leading residential modules. The company spans a broad market range - from large utility-scale ground-mount projects to commercial rooftop and residential installs - making it a versatile and straightforward option for installers and EPCs. LONGi has taken a markedly different strategic path, pivoting to its proprietary HPBC 2.0 back-contact cell technology rather than conventional TOPCon. Its Hi-MO 9 and Hi-MO X10 series reach up to 24.8% module efficiency, and independent field tests published in 2025 showed LONGi's BC modules generating approximately 2.45% more energy per kilowatt than comparable TOPCon panels under desert conditions. This makes LONGi especially compelling for utility-scale developers where reducing the levelized cost of electricity is the primary objective.

For most buyers, both brands represent reliable Tier 1 choices at competitive price points and the decision often comes down to application rather than brand loyalty. Canadian Solar is the more accessible pick for installers wanting proven, widely available TOPCon modules across a broad power range. LONGi is better suited to large-scale or efficiency-critical projects where its proprietary BC technology can deliver measurable yield gains. For standard commercial and residential rooftop applications, the two brands are largely interchangeable.

Written by claude-sonnet from the figures above.


## Other comparisons

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


---

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

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