Canadian Solar vs Renewsys - solar panel manufacturer comparison
Canadian Solar has the broader catalog (292 vs 45 models). Canadian Solar leads on peak efficiency at 24.40%. Renewsys leans bifacial (100% 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
RenewSys is the first integrated manufacturer of Solar PV Modules and its key components - Encapsulants, Backsheets, and Solar PV Cells. Established in 2012, RenewSys is the renewable energy arm of the ENPEE Group, a diversified global conglomerate. They have manufacturing facilities in Hyderabad and Bengaluru.
- Founded
- 2011
- Headquarters
- Mumbai, India
- Annual capacity
- 2.5 GW/year
- Employees
- 1,071
- 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
Renewsys skews to higher efficiency: 24% of lineup is 23%+
Renewsys offers more 600W+ panels (36% of lineup)
Dominant cell tech: <strong>PERC</strong> (67%)
Dominant cell tech: <strong>TOPCon</strong> (100%)
The flagships
Written summary
Canadian Solar is a Canadian manufacturer founded in 2001 in Guelph, Ontario by Dr. Shawn Qu, publicly listed on NASDAQ under CSIQ since 2006, and now headquartered in Kitchener, Ontario. It holds Tier 1 status on S&P Global Commodity Insights' bankable manufacturer list, has shipped roughly 170 GW of modules cumulatively worldwide, and plans module manufacturing capacity above 50 GW per year. RenewSys, founded around 2011-2012 in Bengaluru and operating as the renewable-energy arm of India's ENPEE Group headquartered in Mumbai, is described as India's first fully vertically integrated manufacturer of cells, modules, and key components such as EVA/POE encapsulants and backsheets, but its module capacity in the single-digit-GW range and the absence of confirmed BloombergNEF Tier 1 listing in available sources point to a considerably smaller scale and shorter track record than Canadian Solar, which clearly has the stronger institutional footprint and global recognition.
Canadian Solar's product lineup spans residential-focused HiHero modules (N-type TOPCon, efficiency up to roughly 23-24%, 25-year product and 30-year performance warranties) to bifacial TOPCon 2.0 and TOPBiHiKu modules built for utility-scale and commercial ground-mount projects, alongside an energy-storage business. RenewSys focuses primarily on the Indian and South Asian markets, offering bifacial TOPCon modules from its Deserv/Deserv Extreme line rated up to 720 Wp with front-side efficiency near 23.26%, aimed at both residential rooftops and commercial installations, backed by 10-12 year product and 25-27 year performance warranties; it exports to over 40 countries but shows no clearly documented distribution presence in Europe.
For a typical international buyer who prioritizes product availability, established project bankability, and a long supply track record, Canadian Solar remains the safer default choice given its manufacturing scale and established distributor networks. RenewSys is worth considering for projects with exposure to the Indian or broader Asian market, where its vertically integrated component production is a genuine advantage, but outside that region it is not yet an interchangeable alternative to Canadian Solar in terms of availability and established market standing.
Generated by Claude Sonnet 5 · 2026-09-09
Other brand comparisons
Shop prices: See 38 Canadian Solar offers · See 3 Renewsys 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.