Canadian Solar vs Thornova Solar - solar panel manufacturer comparison
Canadian Solar has the broader catalog (292 vs 0 models). Canadian Solar leans bifacial (46% 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
Thornova Solar, formerly known as Sunova Solar Technology Co., Ltd., is a Chinese manufacturer of high-efficiency photovoltaic modules and solar cells with production facilities in China and Indonesia. The company specializes in advanced solar panel technology and holds BNEF Tier 1 bankable module manufacturer status...
- Founded
- 2016
- Headquarters
- Wuxi, China
- Annual capacity
- 5-10 GW/year
- Employees
- 500-1000
- 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%+
Canadian Solar offers more 600W+ panels (24% of lineup)
Dominant cell tech: <strong>PERC</strong> (67%)
The flagships
Written summary
Canadian Solar is a Canadian-founded company headquartered in Guelph, Ontario, that has grown since its 2001 founding into one of the world's top-tier PV manufacturers, with production operations concentrated in China and Southeast Asia. It has been publicly listed on NASDAQ since 2006 and is a long-standing fixture on the BloombergNEF Tier 1 module list. Its manufacturing scale is substantial - the company reported total 2025 module shipments of 24.3 GW and listed module capacity targets above 51 GW. Thornova Solar is a Chinese manufacturer and the international unit of Sunova Solar, headquartered in China. It earned BNEF Tier 1 status in August 2023 and carried a B-rating in the PV Tech Bankability Report through Q3 2025, reflecting solid but more modest financial standing. Notably, in 2025 the Thornova brand and related intellectual property were acquired by ICE EYE, introducing some transition-period uncertainty. By sheer scale and institutional track record, Canadian Solar holds the stronger footprint.
On the product side, Canadian Solar offers a clearly segmented lineup built around N-type TOPCon cell technology. Its TOPHiKu6 series targets residential and light commercial rooftops with an all-black aesthetic and reduced degradation, while the TOPBiHiKu6 bifacial variant is aimed at utility-scale and commercial ground mounts. Thornova's flagship offering is also a bifacial N-type TOPCon module, with its TS-BWT66 series reaching up to 720 W and 23.2% efficiency - competitive figures suited to large-scale and commercial projects. Thornova has also announced plans to establish domestic cell and module manufacturing in the United States, which could make it more attractive for buyers seeking Inflation Reduction Act domestic-content credits.
For a typical buyer in 2025, Canadian Solar is the lower-risk default: deep project financing experience, a diversified global supply chain, and a broader product range covering every segment. Thornova represents a credible mid-tier alternative - particularly for utility buyers who can act before the ownership transition settles - but its smaller footprint and brand-level change in 2025 add procurement risk that most residential and commercial buyers will reasonably prefer to avoid.
Generated by Claude Sonnet · 2026-06-07
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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.