Canadian Solar Inc., together with its subsidiaries, designs, develops, manufactures, and sells solar ingots, wafers, cells, modules, and other solar power products. The company operates through two segments, Module and System Solutions (MSS), and Energy. The MSS segment engages in the design, development, manufacture, and sale of a range of solar power products, including standard solar modules, specialty solar products, and solar system kits that are a ready-to-install packages comprising inverters, racking systems, and other accessories. It also provides engineering, procurement, and construction; and operation and maintenance (O&M) services. This segment's energy solution products include solar inverters and energy storage systems for utility, commercial, residential, and specialty product applications. Its O&M services include inspections, repair, and replacement of plant equipment; and site management and administrative support services for solar power projects. The Energy segment engages in the development and sale of solar power projects; and operation of solar power plants and sale of electricity. As of January 31, 2020, this segment had a fleet of solar power plants in operation with an aggregate capacity of approximately 880.2 MWp. The company's primary customers include distributors, system integrators, project developers, and installers/EPC companies. Canadian Solar Inc. sells its products primarily under its Canadian Solar brand name; and on an OEM basis. It has operations in North America, South America, Europe, South Africa, the Middle East, Australia, Asia, and internationally. The company was founded in 2001 and is headquartered in Guelph, Canada.