Canadian Solar Inc. (the "Company," "we" or "Canadian Solar") (NASDAQ: CSIQ), one of the world's largest solar companies, today announced that it has been awarded CSA1000V certification. With this certification, Canadian Solar modules are now authorized to receive 1000V of maximum system voltage, allowing the company to more efficiently meet customer demand for high-voltage applications in the Americas, while reducing overall system costs.

CSA International tests products for compliance to national and international standards and issues certification marks for qualified products. Potential customers and users review certification marks for assurance that a product has been through a formal process involving careful examination, testing and follow-up inspection. Additionally, certification marks indicate that the product complies with applicable standards for safety and performance, including the applicable standards written or administered by the American National Standards Institute(ANSI), Underwriters Laboratories (UL), Canadian Standards Association (CSA), National Sanitation Foundation (NSF), and others.

"Canadian Solar has always been a global leader in product quality, innovation and service," said Dr. Shawn Qu, Chairman and CEO for Canadian Solar. "This latest certification further bolsters our credentials as we continue to expand our presence in higher voltage utility-scale PV installations. Our high voltage 1000V modules allow system owners to harvest more energy output with fewer module strings and improved system performance ratio, which serves the bottom line of utility-scale projects."

Canadian Solar modules have received extensive international recognition and certifications validating the quality of the Company's products through rigorous formal inspections and testing. The company's modules are ranked among the top of the California Energy Commission's Solar Electric Incentive Program for their high PTC efficiency ratings.

About Canadian Solar Inc. (NASDAQ: CSIQ)

Canadian Solar Inc. is one of the world's largest solar companies. As a leading vertically integrated provider of ingots, wafers, solar cells, solar modules and other solar applications,Canadian Solar designs, manufactures and delivers solar products and solar system solutions for on-grid and off-grid use to customers worldwide. With operations in North America, Europe,Australia and Asia, Canadian Solar provides premium quality, cost-effective and environmentally-friendly solar solutions to support global, sustainable development. For more information, visitwww.canadiansolar.com.

Certain statements in this press release are forward-looking statements that involve a number of risks and uncertainties that could cause actual results to differ materially. These statements are made under the "Safe Harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by such terms as "believes," "expects," "anticipates," "intends," "estimates," the negative of these terms, or other comparable terminology. Factors that could cause actual results to differ include the risks regarding the previously disclosed SEC investigation as well as general business and economic conditions and the state of the solar industry; governmental support for the deployment of solar power; future available supplies of high-purity silicon; demand for end-use products by consumers and inventory levels of such products in the supply chain; changes in demand from significant customers; changes in demand from major markets such as Germany; changes in customer order patterns; changes in product mix; capacity utilization; level of competition; pricing pressure and declines in average selling prices; delays in new product introduction; continued success in technological innovations and delivery of products with the features customers demand; shortage in supply of materials or capacity requirements; availability of financing; exchange rate fluctuations; litigation and other risks as described in the Company's SEC filings, including its annual report on Form 20-F filed on April 27, 2012. Although the Company believes that the expectations reflected in the forward looking statements are reasonable, it cannot guarantee future results, level of activity, performance, or achievements. You should not place undue reliance on these forward-looking statements. All information provided in this press release is as of today's date, unless otherwise stated, and Canadian Solar undertakes no duty to update such information, except as required under applicable law.