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

# Canadian Solar vs G-STAR

Canadian Solar has the broader catalog (292 vs 36 models). Canadian Solar leads on peak efficiency at 24.40%. G-STAR leans bifacial (86% of lineup).


## The two companies


| Attribute | Canadian Solar | G-STAR |
| --- | --- | --- |
| 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 | G-STAR | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 36 | +256 |
| Max Power | 730 W | 725 W | +5 W |
| Avg Power | 472 W | 562 W | +90 W |


## Efficiency


| Measure | Canadian Solar | G-STAR | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 23.51% | +0.89 pp |
| Avg Efficiency | 20.66% | 22.41% | +1.75 pp |


## Reliability & Warranty


| Measure | Canadian Solar | G-STAR | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.307%/°C | +0.024 |
| Bifacial Share | 133 (46%) | 31 (86%) | +41 pp |
| Avg Warranty | 28.2 yrs | 30.0 yrs | +1.8 yr |


## Efficiency distribution

G-STAR skews to higher efficiency: 28% of lineup is 23%+


| Efficiency band | Canadian Solar | G-STAR |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 0 |
| 20-21% | 36 (12.3%) | 3 (8.3%) |
| 21-22% | 41 (14.0%) | 5 (13.9%) |
| 22-23% | 50 (17.1%) | 18 (50.0%) |
| 23%+ | 37 (12.7%) | 10 (27.8%) |


## Power distribution

G-STAR offers more 600W+ panels (36% of lineup)


| Power band | Canadian Solar | G-STAR |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 0 |
| 400-499W | 72 (24.7%) | 11 (30.6%) |
| 500-599W | 45 (15.4%) | 12 (33.3%) |
| 600-699W | 64 (21.9%) | 7 (19.4%) |
| 700W+ | 7 (2.4%) | 6 (16.7%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (72%)


| Technology | Canadian Solar | G-STAR |
| --- | --- | --- |
| PERC | 195 (66.8%) | 5 (13.9%) |
| TOPCon | 85 (29.1%) | 26 (72.2%) |
| HJT | 12 (4.1%) | 0 |
| N-type | 0 | 5 (13.9%) |


## 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, G-STAR


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [GSD8K66T-725WT](https://comparepv.com/panel/g-star-gsd8k66t-725wt) | 725 | 23.3 | -0.300 | Monocrystalline |
| 2 | [GSD8K66T-720WT](https://comparepv.com/panel/g-star-gsd8k66t-720wt) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [GSD8K66T-715WT](https://comparepv.com/panel/g-star-gsd8k66t-715wt) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [GSD8K66T-710WT](https://comparepv.com/panel/g-star-gsd8k66t-710wt) | 710 | 22.9 | -0.300 | Monocrystalline |
| 5 | [GSD8K66T-705WT](https://comparepv.com/panel/g-star-gsd8k66t-705wt) | 705 | 22.7 | -0.300 | Monocrystalline |
| 6 | [GSD8K66T-700WT](https://comparepv.com/panel/g-star-gsd8k66t-700wt) | 700 | 22.5 | -0.300 | Monocrystalline |
| 7 | [GSD8R66T-635WT](https://comparepv.com/panel/g-star-gsd8r66t-635wt) | 635 | 23.5 | -0.300 | Monocrystalline |
| 8 | [GSD8R66T-630WT](https://comparepv.com/panel/g-star-gsd8r66t-630wt) | 630 | 23.3 | -0.300 | Monocrystalline |
| 9 | [GSD8R66T-625WT](https://comparepv.com/panel/g-star-gsd8r66t-625wt) | 625 | 23.1 | -0.300 | Monocrystalline |
| 10 | [GSD8R66T-620WT](https://comparepv.com/panel/g-star-gsd8r66t-620wt) | 620 | 22.9 | -0.300 | Monocrystalline |


## Summary

Canadian Solar is a Canadian manufacturer headquartered in Kitchener, Ontario, founded in 2001, that grew from a small local startup into one of the world's largest module suppliers, having shipped more than 133 GW of panels cumulatively by 2024. It holds BloombergNEF Tier 1 bankability status, meaning it has demonstrated a track record of supplying non-recourse-financed projects for multiple banks, and its module manufacturing capacity is estimated at roughly 61 GW annually across facilities in the US, Canada, China, Indonesia, Vietnam and Brazil. G-STAR (G-STAR Pte. Ltd.) is a much younger, Singapore-registered brand founded in 2019, with production in the Philippines and a planned US facility, operating around 3 GW of cell capacity and 2 GW of module capacity - roughly an order of magnitude smaller than Canadian Solar - and available sources do not indicate it currently appears on BloombergNEF's Tier 1 list. On institutional footprint and delivery history, Canadian Solar is clearly the stronger of the two.

Canadian Solar's product range is centered on N-type TOPCon modules, supplemented by a US-made heterojunction (HJT) line aimed at higher efficiency and better high-temperature performance, and covers everything from residential and commercial rooftop systems to utility-scale solar farms and battery storage. G-STAR offers both N-type and P-type modules spanning 425W to 725W, targeting residential, commercial and some utility-scale projects mainly in the US, Europe and India, and advertises a 25-year product warranty with a 30-year linear performance warranty and 0.40 percent annual degradation.

For a typical international buyer, whether a homeowner or a commercial project developer, Canadian Solar remains the safer default choice given its confirmed bankability, long shipping history and established service network. G-STAR can be a reasonable option for price-sensitive or smaller projects, but buyers should independently verify local warranty support and service infrastructure, since it lacks a comparable institutional track record at this stage.

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


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Source: https://comparepv.com/canadian-solar-vs-g-star

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