[] [Barristers & Solicitors November 25, 2011 Wayne T. Egan T: 416-947-5086 wegan@weirfoulds.com File 11628.00001 Canadian Solar Inc. Xin Zhuang Industry Park Changshu, Suzhou Jiangsu 215562 People’s Republic of China Dear Sirs: Re: Canadian Solar Inc. (the “Company”) “Registration Statement”) “Commission” “Securities Act”) “Common Shares” “Plan”) We have acted as legal counsel in Canada to the Company, a limited liability corporation] [CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Registration Statement on Form S-8 of our reports relating to the financial statements of Canadian Solar Inc. and the effectiveness of Canadian Solar Inc.’s internal control over financial reporting dated May 17, 2011, appearing in the Annual Report on Form 20-F of Canadian Solar]