Power Market Update — April 2023

The Management’s Discussion and Analysis (MD&A) dated February 22, 2007 should be read in conjunction with the audited Consolidated Financial Statements of TransCanada PipeLines Limited (TCPL or the Company) and the notes thereto for the year ended December 31, 2006.

This document provides a comprehensive report on a company's activities throughout the preceding year.

NGTL is proposing to permanently cease operations at 28 meter stations and 31 lateral pipelines, loops and/or producer tie-ins on the NGTL System within Alberta as these facilities are no longer necessary to provide service to customers.