United States securities and exchange commission logo August 19, 2020 James J. Moore, Jr. President, Chief Executive Officer and Director Atlantic Power Corporation 3 Allied Drive, Suite 155 Dedham, Massachusetts 02026 Re: Atlantic Power Corporation Registration Statement on Form S-3 Filed August 12, 2020 File No. 333-245462 Dear Mr. Moore: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Irene Barberena-Meissner, Staff Attorney, at 202-551-6548 with any questions. Sincerely, Division of Corporation Finance Office of Energy & Transportation cc: Craig B. Brod, Esq.