$AT
On February 28, 2014, Atlantic Power Corporation (the “Company”) filed a registration statement on Form S-3 (the “Registration Statement”) with the Securities and Exchange Commission relating to 5,000,000 common shares, no par value (the “Common Shares”), issuable under the Company’s Dividend Reinvestment Plan (the “Plan”). The Company terminated the Plan on or about February 9, 2016, and no further Common Shares will be issued under the Plan. Accordingly, the Company is filing this Post-effective Amendment No. 1 to the Registration Statement to deregister all of the Company’s remaining Common Shares that remain unissued under the Plan.