TIVERTON, ON – Sept. 27, 2007 – Unit 4 at the Bruce A generating station returned to service tonight following a planned inspection and maintenance program that began Sept 4.

During this period, work was conducted on a number of systems and components that cannot be accessed while the unit is running. All of these activities are intended to enhance the long-term performance and reliability of the 750 megawatt unit.

The inspections and modifications are part of an ongoing program to optimize the operating life of Unit 4’s steam generators, which will be replaced as part of the $5.25 billion Bruce A Restart and Refurbishment program. Work is currently underway to replace the steam generators in Units 1 and 2, which are expected to restart in late 2009, early 2010.

Meanwhile, preparation work continues for Unit 3’s planned inspection and maintenance program, which is set to begin later this quarter and is scheduled to last approximately two months.

Units 3, 5, 6, 7 and 8 remain at high power.

For further information, please contact:

Steve Cannon                                    519-361-6559                 steve.cannon@brucepower.com

24-hour Duty Media Officer        519-361-6161