TORONTO, ONTARIO -- (MARKET WIRE) -- 07/07/09 -- Atlantic Power Corporation ("Atlantic Power") (TSX: ATP.UN)(TSX: ATP.DB) will release its financial results for the three and six months ended June 30, 2009 on the afternoon of Tuesday, August 11, 2009. A telephone conference call hosted by Atlantic Power's management team will be held:

                 Wednesday, August 12, 2009 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.

Replay/Archive

The telephone numbers to listen to the conference call after it is completed (Instant Replay) are local (416) 915-1035 or toll free (866) 245-6755. Please enter the passcode 632180# when instructed. The Instant Replay will be available until midnight, August 19, 2009. 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 14 power generation projects and one transmission line located 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 more information, please visit the Corporation's website at www.atlanticpowercorporation.com.

Contacts:
Atlantic Power Corporation

        Barry Welch
        (617) 977-2700
        Email: info@atlanticpowercorporation.com

Source: Atlantic Power Corporation