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

# Canadian Solar vs Solarspace

Canadian Solar has the broader catalog (292 vs 82 models). Canadian Solar leads on peak efficiency at 24.40%. Solarspace leans bifacial (93% of lineup).


## The two companies


| Attribute | Canadian Solar | Solarspace |
| --- | --- | --- |
| Country | Canada | China |
| Headquarters | Kitchener | Xuzhou |
| Founded | 2001 | 2011 |
| Employees | 17,113 | 6000+ |
| Annual capacity | 51 GW/year | 60+ GW/year |
| Tier 1 | yes | yes |
| Listed | NASDAQ: CSIQ |  |
| Website | [https://www.canadiansolar.com](https://www.canadiansolar.com) | [https://solarspace.com](https://solarspace.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.

SolarSpace is a world-leading solar cell and module manufacturer, focusing on high-efficiency solar technology production both in China and overseas. They are among the top solar cell manufacturers, providing high-quality solar modules with core cell technology worldwide. SolarSpace is dedicated to empowering solar...


## Catalog & Power


| Measure | Canadian Solar | Solarspace | Margin |
| --- | --- | --- | --- |
| Panel Models | 292 | 82 | +210 |
| Max Power | 730 W | 710 W | +20 W |
| Avg Power | 472 W | 539 W | +67 W |


## Efficiency


| Measure | Canadian Solar | Solarspace | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.40% | 23.16% | +1.24 pp |
| Avg Efficiency | 20.66% | 22.04% | +1.38 pp |


## Reliability & Warranty


| Measure | Canadian Solar | Solarspace | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.331%/°C | -0.299%/°C | +0.032 |
| Bifacial Share | 133 (46%) | 76 (93%) | +47 pp |
| Avg Warranty | 28.2 yrs | 29.6 yrs | +1.4 yr |


## Efficiency distribution

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


| Efficiency band | Canadian Solar | Solarspace |
| --- | --- | --- |
| \<20% | 128 (43.8%) | 0 |
| 20-21% | 36 (12.3%) | 7 (8.5%) |
| 21-22% | 41 (14.0%) | 26 (31.7%) |
| 22-23% | 50 (17.1%) | 46 (56.1%) |
| 23%+ | 37 (12.7%) | 3 (3.7%) |


## Power distribution

Solarspace offers more 600W+ panels (33% of lineup)


| Power band | Canadian Solar | Solarspace |
| --- | --- | --- |
| \<400W | 104 (35.6%) | 1 (1.2%) |
| 400-499W | 72 (24.7%) | 35 (42.7%) |
| 500-599W | 45 (15.4%) | 19 (23.2%) |
| 600-699W | 64 (21.9%) | 24 (29.3%) |
| 700W+ | 7 (2.4%) | 3 (3.7%) |


## Cell technology

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

Dominant cell tech: **N-type** (70%)


| Technology | Canadian Solar | Solarspace |
| --- | --- | --- |
| PERC | 195 (66.8%) | 18 (22.0%) |
| TOPCon | 85 (29.1%) | 7 (8.5%) |
| HJT | 12 (4.1%) | 0 |
| N-type | 0 | 57 (69.5%) |


## 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, Solarspace


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SS9-66HD-710N](https://comparepv.com/panel/solarspace-ss9-66hd-710n) | 710 | 22.9 | -0.290 | Monocrystalline |
| 2 | [SS9-66HD-705N](https://comparepv.com/panel/solarspace-ss9-66hd-705n) | 705 | 22.7 | -0.290 | Monocrystalline |
| 3 | [SS9-66HD-700N](https://comparepv.com/panel/solarspace-ss9-66hd-700n) | 700 | 22.5 | -0.290 | Monocrystalline |
| 4 | [SS9-66HD-695N](https://comparepv.com/panel/solarspace-ss9-66hd-695n) | 695 | 22.4 | -0.290 | Monocrystalline |
| 5 | [SS9-66HD-690N](https://comparepv.com/panel/solarspace-ss9-66hd-690n) | 690 | 22.2 | -0.290 | Monocrystalline |
| 6 | [SS9-66HD-685N](https://comparepv.com/panel/solarspace-ss9-66hd-685n) | 685 | 22.1 | -0.290 | Monocrystalline |
| 7 | [SS9-66HD-680N](https://comparepv.com/panel/solarspace-ss9-66hd-680n) | 680 | 21.9 | -0.290 | Monocrystalline |
| 8 | [SS9-66HD-675N](https://comparepv.com/panel/solarspace-ss9-66hd-675n) | 675 | 21.7 | -0.290 | Monocrystalline |
| 9 | [SS9-66HD-670M](https://comparepv.com/panel/solarspace-ss9-66hd-670m) | 670 | 21.6 | -0.330 | Monocrystalline |
| 10 | [SS9-66HD-670N](https://comparepv.com/panel/solarspace-ss9-66hd-670n) | 670 | 21.6 | -0.290 | Monocrystalline |


## Summary

Canadian Solar was founded in 2001 in Guelph, Ontario by Dr. Shawn Qu and has been listed on Nasdaq since 2006, making it one of the longest-established and most bankable names in the industry. The company appears on the S&P Global Commodity Insights (formerly BloombergNEF) Tier 1 list for both PV modules and battery storage, with annual module production capacity in the 51-61 GW range and nearly 165 GW of cumulative module shipments to date. Solarspace, founded in 2011 and headquartered in China, is a younger manufacturer that has also earned Tier 1 status from BloombergNEF and ranked second globally in solar cell shipments in the first half of 2025, backed by roughly 60 GW of cell capacity and 7.2 GW of module capacity. In terms of institutional track record and market longevity, Canadian Solar holds a clear edge.

Canadian Solar's lineup spans TOPCon modules (the TOPHiKu series, around 21-22 percent efficiency) up to its flagship HiHero HJT panels reaching nearly 23.9 percent efficiency, sold in both monofacial and bifacial versions suited to residential rooftops and utility-scale ground-mount projects alike. Solarspace's portfolio centers on N-Type and HJT cells under its Lumina II family, including the high-power SS9-66HD-H module (over 740 W) aimed at utility-scale installations, alongside full-black aesthetic modules positioned for the premium residential market in Europe and North America. Both brands therefore field broadly comparable technology stacks, though Solarspace is leaning more heavily into HJT as its core growth technology.

For a typical international buyer, Canadian Solar remains the safer default thanks to its longer operating history, established distribution and service network, and proven warranty performance. Solarspace, however, is a credible alternative with similar Tier 1 credentials and technical specifications, so for many projects the two brands can be treated as largely interchangeable, with the final decision hinging more on local support, lead times, and pricing of the specific batch than on any fundamental technology gap.

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


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

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