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

# Canadian Solar vs Selfa

Canadian Solar has the broader catalog (292 vs 34 models). Canadian Solar leads on peak efficiency at 24.40%. Canadian Solar leans bifacial (46% of lineup).


## The two companies


| Attribute | Canadian Solar | Selfa |
| --- | --- | --- |
| Country | Canada | Poland |
| Headquarters | Kitchener | Bydgoszcz |
| Founded | 2001 | 1992 |
| Employees | 17,113 |  |
| Annual capacity | 51 GW/year |  |
| Tier 1 | yes | no |
| Listed | NASDAQ: CSIQ |  |
| Website | [https://www.canadiansolar.com](https://www.canadiansolar.com) | [https://www.selfa-pv.com](https://www.selfa-pv.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 | Selfa | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 34 | +258 |
| Max Power | 730 W | 550 W | +180 W |
| Avg Power | 472 W | 404 W | +68 W |


## Efficiency


| Measure | Canadian Solar | Selfa | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 22.60% | +1.80 pp |
| Avg Efficiency | 20.66% | 20.48% | +0.17 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Selfa | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.348%/°C | +0.017 |
| Bifacial Share | 133 (46%) | 3 (9%) | +37 pp |
| Avg Warranty | 28.2 yrs | 27.8 yrs | +0.4 yr |


## Efficiency distribution

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


| Efficiency band | Canadian Solar | Selfa |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 13 (38.2%) |
| 20-21% | 36 (12.3%) | 8 (23.5%) |
| 21-22% | 41 (14.0%) | 7 (20.6%) |
| 22-23% | 50 (17.1%) | 6 (17.6%) |
| 23%+ | 37 (12.7%) | 0 |


## Power distribution

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


| Power band | Canadian Solar | Selfa |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 16 (47.1%) |
| 400-499W | 72 (24.7%) | 12 (35.3%) |
| 500-599W | 45 (15.4%) | 6 (17.6%) |
| 600-699W | 64 (21.9%) | 0 |
| 700W+ | 7 (2.4%) | 0 |


## Cell technology

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

Dominant cell tech: **PERC** (74%)


| Technology | Canadian Solar | Selfa |
| --- | --- | --- |
| PERC | 195 (66.8%) | 25 (73.5%) |
| TOPCon | 85 (29.1%) | 0 |
| HJT | 12 (4.1%) | 0 |
| N-type | 0 | 9 (26.5%) |


## 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, Selfa


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SV144M.5.3-550](https://comparepv.com/panel/selfa-sv144m-5-3-550) | 550 | 21.3 | -0.360 | Monocrystalline |
| 2 | [SV144M.5.3-545](https://comparepv.com/panel/selfa-sv144m-5-3-545) | 545 | 21.1 | -0.360 | Monocrystalline |
| 3 | [SV144M.5.3-540](https://comparepv.com/panel/selfa-sv144m-5-3-540) | 540 | 20.9 | -0.360 | Monocrystalline |
| 4 | [SV144M.5.1-540](https://comparepv.com/panel/tcl-zhonghuan-sv144m-5-1-540) | 540 | 20.9 | -0.360 | Monocrystalline |
| 5 | [SV120M.3.4-500](https://comparepv.com/panel/selfa-sv120m-3-4-500) | 500 | 22.6 | -0.300 | Monocrystalline |
| 6 | [SV120M.2.4-500](https://comparepv.com/panel/selfa-sv120m-2-4-500) | 500 | 22.6 | -0.300 | Monocrystalline |
| 7 | [SV120M.3.4-480](https://comparepv.com/panel/selfa-sv120m-3-4-480) | 480 | 21.7 | -0.300 | Monocrystalline |
| 8 | [SV108M.2.4-450](https://comparepv.com/panel/selfa-sv108m-2-4-450) | 450 | 22.5 | -0.300 | Monocrystalline |
| 9 | [SV108M.3.4-450](https://comparepv.com/panel/tcl-zhonghuan-sv108m-3-4-450) | 450 | 22.5 | -0.300 | Monocrystalline |
| 10 | [SV108M.2.4-440](https://comparepv.com/panel/selfa-sv108m-2-4-440) | 440 | 22.0 | -0.300 | Monocrystalline |


## Summary

Canadian Solar is a Canadian-headquartered manufacturer, publicly listed on NASDAQ since 2006, that produces panels mainly through its Chinese factories along with a growing US manufacturing base, with module capacity targeted at over 50 GW by the end of 2025. It has consistently held Tier 1 bankability status on BloombergNEF's list and was named to S&P Global's Premier Tier 1 Cleantech Companies list for 2025 and 2026, reflecting a strong track record of non-recourse project financing across dozens of banks. Selfa GE S.A., by contrast, is a Polish manufacturer based in Szczecin with roots going back to 1932 and its own automated PV module production line launched in 2012; it is 100 percent Polish-owned and its modules are certified by Germany's VDE and Italy's KIWA Cermet, but the company operates at a fraction of Canadian Solar's scale and does not appear on global Tier 1 bankability lists. On institutional footing and financing scale, Canadian Solar clearly has the stronger position.

Canadian Solar's product range spans TOPCon modules (TOPHiKu6, TOPBiHiKu6/7, and the newer TOPCon 2.0/3.0 platforms) and increasingly HJT panels under its HiHero line, reaching up to 690 W with efficiencies as high as 24.8 percent, serving residential, commercial and utility-scale markets, and it has recently expanded into residential storage with the EP Cube system. Selfa's catalog is narrower, ranging from roughly 230 W entry-level modules to its flagship 550 W SV144M PREMIUM series built on N-type cells, and the company is oriented almost entirely toward the Polish residential and small-scale rooftop segment rather than utility projects.

For buyers prioritizing proven bankability, a wide efficiency range, and utility-scale or commercial deployment, Canadian Solar is the safer default. Selfa remains a reasonable choice for Polish homeowners who value a domestic supply chain and local service reach, though user feedback points to average efficiency and some quality inconsistencies relative to established international brands.

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


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

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