<Page> Exhibit 23.1 <Table> <Caption> To: The Board of Directors TransCanada Corporation </Table> We consent to the use in this Post-effective Amendment No. 1 to the registration statement on Form F-3 of our report incorporated herein by reference and to the reference to our firm under the heading "Experts" in the Prospectus. /s/ KPMG LLP Calgary, Canada June 19, 2003