Atlantic Power Corporation Announces September 2005 Distribution

TORONTO, ONTARIO, Sep 19, 2005 (CCNMatthews via COMTEX News Network) -- Atlantic Power Corporation (TSX:ATP.UN) (the "Company") today announced its distribution for the month of September 2005. A distribution of $0.0859 per Income Participating Security ("IPS") will be payable on October 31, 2005 to holders of record at the close of business on September 30, 2005. The distribution of $0.0859 per IPS reflects the annual distribution increase of $0.03 per IPS announced on September 8, 2005.

Each of the Company's Income Participating Securities is comprised of one common share and $5.767 aggregate principal amount of 11% subordinated notes. The total distribution of $0.0859 reflects a cash dividend per common share of $0.0330 and an interest payment of $0.0529 for the month of September 2005.

Atlantic Power Corporation owns interests in a diversified portfolio of 16 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.

SOURCE: Atlantic Power Corporation

Atlantic Power Corporation
Barry Welch
(617) 531-6379