BOSTON, Sept. 13, 2013 /PRNewswire/ -- Atlantic Power Corporation (TSX: ATP) (NYSE: AT) (the "Company" or "Atlantic Power") today announced its distribution for the month of September 2013.  A dividend of Cdn$0.03333 per common share will be payable on October 31, 2013 to holders of record at the close of business on September 30, 2013.

Tax Information for Shareholders
Atlantic Power Corporation designates its entire dividend to be an "eligible dividend" pursuant to subsection 89(14) of the Income Tax Act (Canada) and its equivalent in any provinces of Canada. 

U.S. individual or other non-corporate taxpayers may be eligible for the reduced rate of tax currently applicable to "qualified dividends" provided that the investor meets the holding period and any other requirements. 

The Company's common share dividend is subject to a 25% withholding tax rate for holders that are not residents of Canada, which may be reduced pursuant to an applicable tax treaty.  The withholding tax rate is 15% for U.S.-resident holders that qualify for the benefits of the Canada – U.S. Income Tax Convention.

Non-Canadian holders may be required by their brokers to complete a Form NR301 (or an equivalent form) in order to demonstrate their entitlement to a treaty-reduced rate of withholding tax.  U.S. and other non-Canadian holders should consult their brokers about the requirement to provide such forms.

U.S. individuals holding shares in taxable accounts may be eligible to receive a credit on their U.S. income tax return for this withholding tax.  U.S. individuals holding the Company's common shares in Individual Retirement Accounts ("IRAs") may be exempt from withholding tax pursuant to the Canada – U.S. Income Tax Convention. 

Taxpayers should always seek their own independent qualified professionals regarding the tax consequences of purchasing or owning common shares of the Company.  Individuals who believe the withholding tax exemption applies to their IRA should contact their broker to determine how to claim the exemption.

About Atlantic Power
Atlantic Power owns and operates a diverse fleet of power generation assets in the United States and Canada.  Atlantic Power's power generation projects sell electricity to utilities and other large commercial customers largely under long-term power purchase agreements, which seek to minimize exposure to changes in commodity prices.  Its power generation projects in operation have an aggregate gross electric generation capacity of approximately 3,018 MW in which its aggregate ownership interest is approximately 2,098 MW. Its current portfolio consists of interests in twenty-nine operational power generation projects across eleven states in the United States and two provinces in Canada. 

Atlantic Power has a market capitalization of approximately $500 million and trades on the New York Stock Exchange under the symbol AT and on the Toronto Stock Exchange under the symbol ATP.  For more information, please visit the Company's website at www.atlanticpower.com or contact:

Atlantic Power Corporation 
Amanda Wagemaker, Investor Relations
(617) 977-2700 
info@atlanticpower.com

Copies of financial data and other publicly filed documents are filed on SEDAR at www.sedar.com or on EDGAR at www.sec.gov/edgar.shtml under "Atlantic Power Corporation" or on the Company's website.

SOURCE Atlantic Power Corporation