Canadian Solar vs Solarspace - solar panel manufacturer comparison
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).
Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.
The two companies
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.
- Founded
- 2001
- Headquarters
- Kitchener, Canada
- Annual capacity
- 51 GW/year
- Employees
- 17,113
- Listed
- NASDAQ: CSIQ
- Tier 1 bankable
- Yes
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...
- Founded
- 2011
- Headquarters
- Xuzhou, China
- Annual capacity
- 60+ GW/year
- Employees
- 6000+
- Tier 1 bankable
- Yes
Catalogue against catalogue
An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.
What each of them builds
Canadian Solar skews to higher efficiency: 13% of lineup is 23%+
Solarspace offers more 600W+ panels (33% of lineup)
Dominant cell tech: <strong>PERC</strong> (67%)
Dominant cell tech: <strong>N-type</strong> (70%)
The flagships
Written 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.
Generated by Claude Sonnet 5 · 2026-08-21
Other brand comparisons
Shop prices: See 40 Canadian Solar offers · See 5 Solarspace offers
Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.