Canadian Solar vs Solaria - solar panel manufacturer comparison
Canadian Solar has the broader catalog (292 vs 27 models). Canadian Solar leads on peak efficiency at 24.40%. 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
Solaria is a leading European company focused on developing and generating solar photovoltaic energy. The company aims to contribute to decarbonization by creating a global energy model based on clean energy. Solaria specializes in the implementation and development of solar photovoltaic technology, from manufacturing...
- Founded
- 2002
- Headquarters
- Madrid, Spain
- Annual capacity
- 1.658 GW/year
- Employees
- 235
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%)
Dominant cell tech: <strong>TOPCon</strong> (19%)
The flagships
Written summary
Canadian Solar is a Canadian manufacturer headquartered in Guelph, Ontario, founded in 2001 and NASDAQ-listed since 2006. It consistently appears on Tier 1 bankability lists (including S&P Global Commodity Insights) and operates at very large scale, with module capacity around 50 GW per year and nearly 170 GW of modules shipped cumulatively worldwide. Solaria, by contrast, is a name that has undergone significant restructuring in recent years: the US-based Solaria (Fremont, California), known for its shingled-cell PowerXT panels, merged with Complete Solar in 2022, sold its shingled-cell patents to Maxeon in 2023, and in April 2025 the combined entity, Complete Solaria, rebranded entirely as SunPower. A separate, unrelated company, Solaria Energia y Medio Ambiente of Madrid, closed its own module production lines years ago and now focuses on developing and operating utility-scale solar plants rather than manufacturing panels. As a result, Canadian Solar today holds a far stronger and clearer institutional footprint as an active module producer.
Canadian Solar's product range spans TOPCon modules (the TopHiKu6 series, reaching roughly 22.5 percent efficiency) as its high-volume offering for residential and commercial rooftops, alongside the HiHero HJT line positioned as a premium, high-bifaciality option (up to around 95 percent) for projects prioritizing maximum yield. The company serves both rooftop and utility-scale ground-mount segments, and it also supplies battery storage through its e-STORAGE division. Solaria's PowerXT panels, built on shingled-cell technology, were once well regarded for high power density in compact roof spaces, but that brand no longer exists as an independent panel manufacturer.
For a typical buyer today, Canadian Solar is clearly the safer default given its active production, Tier 1 status, and established distribution network. Solaria is no longer a functioning standalone solar panel brand, so this comparison is largely historical rather than a reflection of current market competition - buyers previously considering Solaria panels should look at SunPower's current lineup instead.
Generated by Claude Sonnet 5 · 2026-09-20
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.