TORONTO, ONTARIO--(CCNMatthews - July 11, 2006) - Atlantic Power (TSX:ATP.UN) will release its financial results for the three and six months ended June 30, 2006 during the afternoon of Thursday, August 10, 2006. A telephone conference call hosted by Atlantic Power's management team will be held:

Friday, August 11, 2006 at 10.00 am ET

The telephone numbers for the conference call are:

Local / International: (416) 849-2698

North American Toll Free: (866) 400-2270

The Conference Call will also be broadcast over Atlantic Power's website at www.atlanticpowercorporation.com. Please call or log in 10 minutes prior to the call.

The telephone numbers to listen to the conference call after it is completed (Instant Replay) are local (402) 220-2508 or toll free (888) 566-0814. Please enter the passcode 2786460# when instructed. The Instant Replay will be available until midnight, August 17, 2006. The conference call will also be archived on Atlantic Power's web site.

About Atlantic Power

Atlantic Power Corporation owns interests in a diversified portfolio of 15 power generation projects located primarily in major markets in the United States. Atlantic Power's objectives are to sustain and grow its cash distributions over the long term by enhancing the performance of its existing assets and by making accretive acquisitions.

FOR FURTHER INFORMATION PLEASE CONTACT:
        Atlantic Power Corporation
        
        Barry Welch
        (617) 977-2700
        Email: info@atlanticpowercorporation.com

Source: Atlantic Power Corporation