Atlantic Power Announces Closing of
Transaction With I Squared Capital

DEDHAM, Mass., May 14, 2021 – Atlantic Power Corporation (NYSE: AT) (TSX: ATP) (“Atlantic Power”), announced today the closing (“Closing”) of its previously announced transaction with affiliates of infrastructure funds managed by I Squared Capital Advisors (US) LLC (the “Transaction”). In connection with the Transaction:

  • All of the common shares of Atlantic Power (“Common Shares”) were acquired for US$3.03 in cash per Common Share (less applicable withholdings).
  • All of the preferred shares of Atlantic Power Preferred Equity Ltd. (“APPEL”) were acquired by APPEL for C$22.00 in cash per preferred share (less applicable withholdings).
  • Atlantic Power Limited Partnership’s (“APLP”) 5.95% medium term notes due June 23, 2036 (“MTNs”) were redeemed for consideration equal to 106.071% of the principal amount of MTNs outstanding, plus accrued and unpaid interest on the MTNs up to, but excluding, the closing date of the Transaction. Holders of MTNs that delivered a written consent to the previously disclosed amendments to the trust indenture governing the medium term notes prior to 5:00 p.m. (Toronto time) on March 16, 2021 also received a consent fee equal to 0.25% of the principal amount of MTNs held by such holders.
  • Atlantic Power’s 6.00% Series E Convertible Unsecured Subordinated Debentures due January 31, 2025 (the “Convertible Debentures”) have been defeased effective as of Closing, as described below.

As previously announced, holders of Convertible Debentures that converted their Convertible Debentures during the period beginning on April 30, 2021 and ending at 4:00 p.m. (Toronto time) on May 11, 2021 (the “Conversion Deadline”) participated in the Transaction as holders of underlying Common Shares and will receive US$3.03 per underlying Common Share (including Common Shares issuable on account of the Make Whole Premium (as defined in the trust indenture governing the Convertible Debentures)), together with accrued interest paid in Canadian dollars up to, but excluding, the date of conversion. All Convertible Debentures that were not converted prior to the Conversion Deadline were defeased (the “Defeasance”).

Notwithstanding the Defeasance, any holder of Convertible Debentures who converts their Convertible Debentures during the period beginning today and ending at 5:00 p.m. (Toronto time) on June 14, 2021 (the “Make Whole Conversion Period”), will also be entitled to receive the Make Whole Premium. The Convertible Debentures are no longer convertible into Common Shares and holders are entitled to receive C$3.72 in lieu of each Common Shares previously issuable on a conversion (including any Common Shares otherwise issuable on account of the Make Whole Premium if converted within the Make Whole Conversion Period). Any Convertible Debentures which remain outstanding following the expiry of the Make Whole Conversion Period will continue to receive interest at a rate of 6.00% per annum, payable semi-annually in arrears up to but excluding, and the repayment of principal upon, the date of redemption of the Convertible Debentures at par on January 31, 2023.

In connection with the Transaction (i) the Common Shares will be de-listed from the TSX and the NYSE, (ii) the preferred shares of APPEL will be de-listed from the TSX, and (iii) the Convertible Debentures will be de-listed from the TSX, in each case shortly following Closing. Atlantic Power, APPEL and APLP intend to apply to Canadian securities regulators to cease being reporting issuers and Atlantic Power also intends to file to deregister under the U.S. Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Registered common shareholders of Atlantic Power and preferred shareholders of APPEL are reminded that they must properly complete, sign and return the letter of transmittal, along with their share certificate(s) (if any), to Computershare Trust Company of Canada, as depositary, in order to receive the consideration they are entitled to under the Transaction. Non-registered securityholders of Atlantic Power and its subsidiaries will receive the consideration they are entitled to under the Transaction through the intermediary in whose name their securities are registered.