TransCanada Fourth Quarter 2002 Teleconference and Web Cast Advisory

CALGARY, Alberta - January 21, 2003 - (TSX:TRP) (NYSE:TRP) - TransCanada PipeLines Limited is scheduled to release its fourth quarter 2002 financial results in the morning of Tuesday, January 28, 2003. Analysts, members of the media and other interested parties are invited to participate in a teleconference and audio web cast, January 28, 2003 at 1:00 p.m. (Mountain) / 3:00 p.m. (Eastern) to discuss fourth quarter 2002 financial results, general developments and issues concerning the company.

To participate, please call 1-800-273-9672 or 416-695-5806 (Toronto area) at least 10 minutes prior to the start of the call. No passcode is required. A live audio web cast of the teleconference will also be available on TransCanada's web site (www.transcanada.com).

The conference will begin with a short address by members of TransCanada's executive management, followed by a question and answer period for investment analysts. A question and answer period for members of the media will immediately follow.

A replay of the teleconference will be available two hours after the conclusion of the call until midnight, February 4, 2003. Please call 1-800-408-3053 or 416-695-5800 (Toronto area) and enter passcode 1340403. The web cast will be archived and available for replay.

TransCanada is a leading North American energy company. It is focused on natural gas transmission and power services with employees who are expert in these businesses. The company's network of approximately 38,000 kilometres of pipeline transports the majority of western Canada's natural gas production to the fastest growing markets in Canada and the United States. Upon closing of its Bruce Power transaction, TransCanada will own or have interests in, control, manage or be constructing facilities for approximately 4,150 megawatts of power -- an amount of power that can meet the needs of about four million average households. The company's common shares trade under the symbol TRP on the Toronto and New York stock exchanges.

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For further information, please contact:

Media Inquiries:
Glenn Herchak / Kurt Kadatz
(403) 920-7877

Investor & Analyst Inquiries:
David Moneta / Debbie Persad
(403) 920-7911