Canadian Solar vs VSUN - solar panel manufacturer comparison
Canadian Solar has the broader catalog (292 vs 111 models). Canadian Solar leads on peak efficiency at 24.40%. VSUN leans bifacial (75% 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
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%+
VSUN offers more 600W+ panels (29% of lineup)
Dominant cell tech: <strong>PERC</strong> (67%)
Dominant cell tech: <strong>TOPCon</strong> (72%)
The flagships
Written summary
Canadian Solar is a Canada-headquartered module manufacturer listed on NASDAQ since 2006, with manufacturing spread across Asia and a global commercial footprint. It has been named to S&P Global Commodity Insights' Tier 1 Cleantech Companies list and reports module production capacity around 61 GW annually, placing it among the largest suppliers worldwide. VSUN, owned by Japan's Abalance Group through Fuji Solar, was founded in 2015 with its main factory based in Vietnam; it is a smaller but independently confirmed Tier 1 manufacturer per BloombergNEF's 2025 rankings. In terms of institutional depth and scale, Canadian Solar clearly has the stronger footprint, backed by two decades of public listing history and a much larger production base.
Both brands center their current lineups on N-type TOPCon cell technology. Canadian Solar also fields an HJT line, and its TOPCon and HJT HP modules have earned FM 4478/4480 hail-resistance approvals, while its newest TOPCon 3.0 series pushes output to 670 W at 24.8% efficiency, targeted mainly at utility-scale and C&I projects. VSUN's catalog runs from 390 W to 715 W, with bifacial TOPCon dual-glass modules aimed at ground-mount and commercial installations alongside a more compact 380-460 W range for residential rooftops, backed by a 30-year performance warranty. For buyers, this suggests Canadian Solar is the safer default for large utility-scale portfolios needing top-tier bankability, while VSUN can be a competitive option for residential and mid-scale commercial jobs.
In practical terms the technological gap between the two is narrow - both hold Tier 1 status and rely on similar N-type architectures. The decision often comes down to local distributor support, warranty terms, and pricing rather than any fundamental advantage of one brand over the other.
Generated by Claude Sonnet 5 · 2026-08-05
Other brand comparisons
Shop prices: See 38 Canadian Solar offers · See 3 VSUN 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.