Canadian Solar vs TN Solar - solar panel manufacturer comparison
Canadian Solar has the broader catalog (292 vs 10 models). Canadian Solar leads on peak efficiency at 24.40%.
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
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%+
TN Solar offers more 600W+ panels (50% of lineup)
Dominant cell tech: <strong>PERC</strong> (67%)
Dominant cell tech: <strong>HJT</strong> (50%)
The flagships
Written summary
Canadian Solar is headquartered in Guelph, Ontario, Canada, and was founded in 2001, though most of its manufacturing is based in China. The company appears on BloombergNEF's Tier 1 list, confirming its bankability for financiers backing large-scale projects, and its annual module production capacity exceeds 50 GW, placing it among the largest module suppliers worldwide. TN Solar, operating as TN Solar Co., Limited, is a considerably smaller and less internationally documented manufacturer, producing panels ranging from small 20-200 W modules up to 400-755 W units built on PERC, TOPCon and HJT cell platforms, but searches of trade outlets such as pv-magazine, PVTech and TaiyangNews turned up no confirmed Tier 1 or BNEF bankability listing, nor independent field-test coverage. On institutional footprint and documented scale, Canadian Solar is clearly the stronger of the two.
In practice, Canadian Solar covers nearly every market segment with dedicated product lines for residential rooftop systems, commercial and industrial (C&I) installations, and utility-scale ground-mount farms, increasingly built around higher-efficiency TOPCon cells. TN Solar's catalog seems to span both niche small-format panels (suited to portable or specialty applications) and more conventional commercial-size modules, but the lack of broad independent documentation makes it hard to gauge its real presence in markets like the US or Europe.
For a typical buyer, whether a homeowner or a commercial project developer, Canadian Solar is the safer default choice given its verified bankability, long supply track record, and established warranty support infrastructure. TN Solar could be worth considering for specific niche use cases, but buyers should request independent certifications and project references directly from the supplier before committing.
Generated by Claude Sonnet 5 · 2026-10-02
Other brand comparisons
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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.