UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 28, 2017

ATLANTIC POWER CORPORATION

(Exact name of registrant as specified in its charter)

(617) 977-2400

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o                 Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o                 Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o                 Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o                 Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 7.01                                           Regulation FD Disclosure.

On April 28, 2017, Atlantic Power Corporation (the “Company”) posted its 2016 Annual Report to the Company’s website, http://www.atlanticpower.com, in the “Investors” section under “Corporate Profile.”  The Annual Report includes a letter to shareholders from President and Chief Executive Officer James J. Moore, Jr., containing a discussion of the Company’s business, a summary of the Company’s 2016 financial and operating results, and a review of the progress made by the Company in 2015 and 2016.  In addition, the letter provides an estimate of the amount of additional revenues expected to be received from the Ontario Electricity Financial Corporation with respect to the Global Adjustment dispute.  The letter also discloses that the Company’s liquidity as of March 31, 2017 was approximately $214 million.

Information contained on the Company’s website or that can be accessed through the Company’s website is not incorporated into and does not constitute a part of this Current Report on Form 8-K.  The Company has included its website address only as an inactive textual reference and does not intend it to be an active link to the Company’s website.

The information in this Item 7.01 is being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that Section, nor shall such information be deemed to be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise stated in that filing.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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