Canadian Solar

Corporate brand

A Canadian renewable-energy company that manufactures solar photovoltaic equipment and develops solar and battery-storage projects worldwide.

Last updated October 21, 2026

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Overview

Canadian Solar Inc. is a Canadian renewable-energy company founded by Shawn Qu in 2001. Although its name reflects its Canadian origins, the company operates internationally and has developed a substantial manufacturing, project-development, and energy-storage presence across several regions. Its corporate headquarters are in Kitchener, Ontario, while its project-development subsidiary Recurrent Energy relocated its headquarters to Austin, Texas, in 2021. The company’s principal activities span the solar-energy value chain. Through CSI Solar and related manufacturing operations, it produces photovoltaic cells and modules, including bifacial and n-type TOPCon products based on large-format silicon cells. Through its project-development activities, including Recurrent Energy, it develops, constructs, owns, and operates utility-scale solar farms and battery-energy-storage facilities. Its energy-storage business, rebranded as e-STORAGE in 2023, supplies utility-scale battery systems and related integration services. Canadian Solar also markets distributed and residential storage products, including the EP Cube system launched in 2022. Canadian Solar became a public company in November 2006, listing on the Nasdaq under the symbol CSIQ. A major strategic step came in 2015, when it acquired Recurrent Energy from Sharp Corporation for approximately US$265 million. The acquisition strengthened the company’s position in utility-scale project development in the United States and broadened its business beyond equipment manufacturing. In 2017, Canadian Solar listed the Canadian Solar Infrastructure Fund in Japan, using the offering to support the acquisition of solar facilities in Japan. Manufacturing and supply-chain activities have included facilities and operations in Canada, China, Indonesia, Vietnam, Brazil, and the United States. In 2023, CSI Solar completed an initial public offering on the Shanghai Stock Exchange. Canadian Solar also announced a US$250 million solar-module assembly plant in Mesquite, Texas, intended to reach approximately 5 GW of annual capacity and employ up to 1,500 people. In 2024, the company announced an additional US$712 million battery-manufacturing project in Shelbyville, Kentucky, with initial planned capacity of 3 GWh and a possible second phase that would double output. Canadian Solar has supplied modules and developed projects in countries including Canada, the United States, Brazil, Argentina, Italy, Germany, Turkey, Honduras, Denmark, South Africa, Colombia, and Japan. Projects associated with the company have included utility-scale solar farms, rooftop installations, solar-plus-storage facilities, and grid-supporting battery systems. By 2024, the company reported global delivery of more than 133 GW of solar photovoltaic modules and development, construction, or connection of more than 10 GWp of solar projects and 3.3 GWh of battery-storage projects. The company has also faced scrutiny concerning supply-chain and regional exposure. In 2021, media reports and advocacy groups questioned Canadian Solar’s links to solar assets and suppliers in Xinjiang, China, in the context of allegations concerning Uyghur forced labor. Canadian Solar denied forced-labor connections and stated that it was working on supplier-audit processes; it subsequently sold two Xinjiang solar plants. In August 2023, the US Department of Commerce determined that Canadian Solar had circumvented certain tariffs on Chinese-made goods. These matters form part of the continuing regulatory, human-rights, and supply-chain risks affecting the global solar industry. Canadian Solar participates in initiatives including the United Nations Global Compact and CDP climate disclosure. Its sustainability reporting has received recognition from Environmental Finance. The company’s present positioning combines large-scale renewable-power infrastructure, photovoltaic manufacturing, and integrated battery storage, serving utilities, project developers, commercial customers, and residential users.

History

Shawn Qu founded Canadian Solar in Guelph, Ontario, in 2001. The company was established during the early expansion of the global photovoltaic industry and initially built its business around solar-module manufacturing and international supply. Canadian Solar became publicly traded on Nasdaq in November 2006 under the ticker CSIQ. During the following decade, the company expanded from equipment manufacturing into the development and construction of renewable-power assets. It entered project development in 2010 and supplied modules for major installations in Europe, North America, Latin America, and Asia. Its modules were used in projects such as the Rovigo plant in Italy, the Senftenberg solar park in Germany, and the Grand Renewable Solar Project in Ontario. The company also developed or constructed projects in Germany and Brazil and supplied equipment to installations in Turkey, Honduras, Denmark, and the United States. In 2015, Canadian Solar purchased Recurrent Energy from Sharp Corporation for approximately US$265 million. Recurrent Energy became an important vehicle for developing, owning, and operating utility-scale solar projects, particularly in North America. Canadian Solar subsequently supported large projects including the Mustang Solar Project in California and the Roserock Solar Project in Texas. The company’s project portfolio broadened as solar generation became increasingly integrated with long-term power contracts and institutional infrastructure investment. Canadian Solar expanded its financing and asset-ownership model in Japan in 2017 by listing the Canadian Solar Infrastructure Fund on the Tokyo Stock Exchange. The fund’s offering supported the acquisition of 13 Japanese solar facilities with combined capacity of 72.7 MWp. This transaction illustrated the company’s use of listed infrastructure vehicles to recycle capital and retain exposure to operating renewable assets. In the late 2010s and early 2020s, Canadian Solar continued manufacturing and project development across multiple jurisdictions. Its projects included the Cafayate solar plant in Argentina, large solar developments in Brazil, and the Suffield facility in Alberta. In 2021, Recurrent Energy moved its headquarters to Austin, Texas, reflecting the importance of the US market to the company’s development platform. Energy storage became a more prominent part of the company’s strategy. Canadian Solar launched the EP Cube residential storage system in September 2022. The modular product can combine up to six units and is designed for household backup and solar self-consumption. In 2023, the company renamed its utility-scale storage subsidiary e-STORAGE. The subsidiary operates automated production facilities and supplies battery-storage solutions to markets including the United States, Canada, the United Kingdom, and China. Canadian Solar also completed the listing of CSI Solar on the Shanghai Stock Exchange in 2023. The company pursued additional North American manufacturing in response to local-content incentives, supply-chain concerns, and demand for domestically assembled solar equipment. In June 2023, it announced a US$250 million module-assembly plant in Mesquite, Texas, designed for approximately 5 GW of annual production and up to 1,500 jobs. In March 2024, it agreed to supply Sol Systems with modules from the completed facility. In November 2024, Canadian Solar announced a US$712 million battery plant in Shelbyville, Kentucky. The project was planned as a one-million-square-foot facility with initial capacity of 3 GWh and a potential second phase doubling capacity. Canadian Solar has also become involved in larger solar-plus-storage projects. In 2023, it completed Colombia’s first utility-scale battery-storage project, a 45 MW/45 MWh lithium-ion system in Barranquilla. In 2024, bifacial Canadian Solar modules were used in the EDF Arrow Canyon solar-plus-storage project associated with renewable-power supply for Super Bowl LVIII. The company has reported more than 133 GW of module deliveries and more than 10 GWp of developed, built, or connected solar projects by 2024. Its growth has occurred alongside scrutiny of solar-industry supply chains. In 2021, reports connected Canadian Solar to solar assets and suppliers in Xinjiang, where international organizations and governments have raised forced-labor concerns. Canadian Solar denied forced-labor links, described efforts to establish supplier audits, and later sold its two Xinjiang solar plants. In 2023, the US Department of Commerce determined that the company had circumvented certain tariffs on Chinese-made goods. These issues have highlighted the regulatory and reputational challenges of operating an internationally distributed photovoltaic supply chain. Canadian Solar currently combines manufacturing, project development, energy storage, and renewable-power asset ownership. Its business is organized around global photovoltaic equipment supply and the development of increasingly integrated solar-and-storage infrastructure.

2024
Kentucky battery plant announced
[1]Canadian Solaren.wikipedia.org
Canadian Solar announced a major battery-manufacturing investment in Shelbyville, Kentucky.
2023
CSI Solar Shanghai IPO
[1]Canadian Solaren.wikipedia.org
CSI Solar completed an IPO and began trading on the Shanghai Stock Exchange.
2023
e-STORAGE brand introduced
[1]Canadian Solaren.wikipedia.org
The utility-scale storage subsidiary changed its name from CSI Energy Storage to e-STORAGE.
2022
EP Cube launched
[1]Canadian Solaren.wikipedia.org
Canadian Solar introduced its modular residential energy-storage system.
2021
Recurrent Energy moves to Austin
[1]Canadian Solaren.wikipedia.org
The project-development subsidiary relocated to Austin, Texas.
2017
Infrastructure fund listed in Japan
[1]Canadian Solaren.wikipedia.org
Canadian Solar Infrastructure Fund listed on the Tokyo Stock Exchange to finance Japanese solar assets.
2015
Recurrent Energy acquisition
[1]Canadian Solaren.wikipedia.org
Canadian Solar acquired solar developer Recurrent Energy from Sharp Corporation.
2006
Nasdaq listing
[1]Canadian Solaren.wikipedia.org
Canadian Solar became a publicly traded company on Nasdaq under CSIQ.
2001
Company founded
[1]Canadian Solaren.wikipedia.org
Shawn Qu founded Canadian Solar in Guelph, Ontario.

Products and positioning

Vertically integrated global solar and energy-storage provider serving equipment, infrastructure, and renewable-power markets.

Solar modules
TOPCon photovoltaic modules
Canadian Solar manufactures photovoltaic modules using large-format n-type TOPCon cells. Its bifacial designs can generate electricity from light reaching both the front and rear surfaces, making them suitable for utility-scale projects and installations where reflected light can improve yield. The company has reported extensive global module deliveries and positions these products as a core part of its equipment business.
Residential energy storage · 2022
EP Cube
EP Cube is a modular residential battery-storage system introduced in 2022. Multiple battery units can be connected to increase household storage capacity and output. The system is intended for solar self-consumption, backup power, and household energy management.
Utility-scale battery storage · 2023
e-STORAGE
e-STORAGE is Canadian Solar’s utility-scale battery-energy-storage business, renamed from CSI Energy Storage in 2023. It supplies integrated battery systems and related solutions for utilities and renewable-project developers in markets including North America, the United Kingdom, and China.
Solar and storage project development · 2015
Recurrent Energy projects
Recurrent Energy develops, constructs, owns, and operates utility-scale solar and battery-storage projects. The platform has been associated with projects in the United States and other international markets and is central to Canadian Solar’s infrastructure and renewable-power business.

Controversies

2023
US tariff-circumvention determination
The US Department of Commerce ruled that Canadian Solar had circumvented tariffs on certain Chinese-made goods. The determination formed part of broader US scrutiny of photovoltaic supply chains and trade practices.
Source
2021
Xinjiang supply-chain and asset scrutiny
Media reports and advocacy organizations questioned Canadian Solar’s operation of solar facilities in Xinjiang and its relationship with suppliers connected to allegations of forced labor involving Uyghurs. The company denied forced-labor connections and stated that it was developing supplier-audit processes. It later sold its two Xinjiang solar plants.
Source
2020
Solaria sues Canadian Solar over patent infringement claims
Solaria filed suit against Canadian Solar in federal court in California, alleging that Canadian Solar infringed Solaria's U.S. patent related to shingled solar panels. The source reports the allegation, not a court determination.
Source

2024
Announce Kentucky battery plantStrategy
Background
Canadian Solar pursued regionalized battery manufacturing to support the North American storage market.
Action taken
The company announced a planned one-million-square-foot battery plant in Shelbyville, Kentucky.
Aftermath
Initial production was scheduled for 2025, with full-scale production expected in early 2026 according to the cited reference.
Planned investment. US$712 million (Announced November 2024)
Source
2023
Expand North American manufacturingStrategy
Background
US demand and policy incentives increased the strategic value of domestic solar-equipment production.
Action taken
Canadian Solar announced a planned module-assembly plant in Mesquite, Texas, with intended annual capacity of approximately 5 GW.
Aftermath
The company later agreed to supply Sol Systems with modules from the facility.
Planned investment. US$250 million (Announced 2023)
Source
2023
Rebrand utility-scale storage businessStrategy
Background
Canadian Solar sought a clearer identity for its growing battery-storage business.
Action taken
It renamed CSI Energy Storage as e-STORAGE.
Aftermath
The rebranded subsidiary continued supplying integrated utility-scale storage solutions.
Source
2022
Launch EP CubeProduct launch
Background
Residential customers were seeking modular storage for solar self-consumption and backup power.
Action taken
Canadian Solar launched the EP Cube residential energy-storage system.
Aftermath
The launch broadened the company’s storage portfolio beyond utility-scale projects.
Source
2015
Acquire Recurrent EnergyM&A
Background
Canadian Solar sought to expand from module manufacturing into utility-scale renewable-power development.
Action taken
It purchased Recurrent Energy from Sharp Corporation for approximately US$265 million.
Aftermath
Recurrent Energy became a major project-development platform within the Canadian Solar group.
Acquisition price. Approximately US$265 million (2015)
Source

Recent events

2020-09-21
BluEarth acquires Suffield Solar Project[4]BluEarth收购Suffield太阳能项目privateequityinternational.com
Reported: 2020-09-21
BluEarth Renewables acquired Alberta's Suffield Solar Project from Canadian Solar.
2020-07-01
Canadian Solar launches Series 5 and Series 6 PV modules[5]Canadian Solar 发布 Series 5 和 Series 6 光伏组件prnewswire.com
Reported: 2020-07-01
Canadian Solar launched its Series 5 and Series 6 photovoltaic modules, adding them to its HiKu, BiHiKu and HiDM portfolios.
2020-04-01
Solaria sues Canadian Solar over patent infringement claims[3]Solaria sues Canadian Solar over patent infringement claimspv-magazine-usa.com
Reported: 2020-04-01
Solaria filed suit against Canadian Solar in federal court in California, alleging that Canadian Solar infringed Solaria's U.S. patent related to shingled solar panels. The source reports the allegation, not a court determination.
2020-02-06
Canadian Solar announces acquisition of Chilean solar portfolio[6]Canadian Solar宣布收购智利太阳能项目组合prnewswire.com
Reported: 2020-02-06
Canadian Solar announced its acquisition of a 47.5 MWp portfolio of solar projects under development in Chile. The projects were expected to become operational in two stages beginning in the fourth quarter of 2020.
2020-01-01
Canadian Solar appoints an independent director and a strategic advisor[7]Canadian Solar任命独立董事和战略顾问prnewswire.com
Reported: 2020-01-06
Canadian Solar appointed Lauren C. Templeton as an independent director and Karl E. Olsoni as a strategic advisor to its board, effective January 1, 2020.
2019-12-18
Solar Frontier Americas acquired the Mustang Two solar project[8]Solar Frontier Americas收购Mustang Two太阳能项目pvbuzz.com
Reported: 2019-12-18
Canadian Solar announced that its wholly owned subsidiary Recurrent Energy completed the sale of its 150 MWac/210 MWp Mustang Two solar project to Solar Frontier Americas.

Sources11 sources

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