Media Advisory: TransCanada to Provide Update Regarding Alaska Highway Pipeline Project

 CALGARY, Alberta – April 6, 2005 – (TSX: TRP) (NYSE: TRP) – TransCanada Corporation will provide an update tomorrow regarding its Alaska Highway Pipeline Project.

Members of the media, analysts and other interested parties are invited to participate in the update via teleconference April 7 at 11 a.m. (Mountain) / 1 p.m. (Eastern). Members of the media are also invited to attend in person at the Metropolitan Centre (333 4th Ave SW) in Calgary. The meeting will be held in the Strand Tivoli Room.

To participate, please call 1-800-769-8320 or 416-695-5261 (Toronto area). Please dial in 10 minutes prior to the start of the call. No passcode is required.

The conference will begin with a presentation by Hal Kvisle, TransCanada’s chief executive officer, followed by a question and answer period for media. A question and answer period for investment analysts will follow.

Copies of the presentation, handout materials and a live audio webcast of the teleconference will also be available on TransCanada’s website.

A replay of the teleconference will be available two hours after the conclusion of the call until April 14, 2005. Please call 1-888-509-0081 or 416-695-5275 (Toronto area). The webcast will be archived and available for replay on www.transcanada.com.

TransCanada is a leading North American energy company. TransCanada is focused on natural gas transmission and power services with employees who are expert in these businesses. TransCanada’s network of approximately 41,000 kilometres (25,600 miles) of pipeline transports the majority of Western Canada’s natural gas production to the fastest growing markets in Canada and the United States. TransCanada owns, controls or is constructing approximately 5,700 megawatts of power generation – an amount of power that can meet the needs of about 5.7 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:

TransCanada
Kurt Kadatz / Hejdi Feick
(403) 920-7859 or Toll Free (800) 608-7859

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