<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>h01912a1exv23w1.txt
<DESCRIPTION>EX-23.1 CONSENT OF DELOITTE TOUCHE TOHMATSU CPA LTD.
<TEXT>
<PAGE>

                                                                    Exhibit 23.1


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Amendment No. 1 to
Registration Statement No. 333-149497 on Form F-3 of our report dated May 28,
2007, relating to the financial statements and financial statement schedule of
Canadian Solar Inc., appearing in the Annual Report on Form 20-F of Canadian
Solar Inc. for the year ended December 31, 2006, and to the reference to us
under the heading "Experts" in the Prospectus, which is part of such
Registration Statement.




/s/ Deloitte Touche Tohmatsu CPA Ltd.

Deloitte Touche Tohmatsu CPA Ltd.

Shanghai, China

March 25, 2008



</TEXT>
</DOCUMENT>
