AT Atlantic Power Corporation

On April 7, 2021, Atlantic Power Corporation (“Atlantic Power” or the “Company”) convened a special meeting (the “Common Shareholder Meeting”) of holders (the “Common Shareholders”) of the Company's common shares (the “Common Shares”).

The following matters were submitted to a vote of the Company’s Common Shareholders at the Common Shareholder Meeting: (i) a proposal to consider, pursuant to an interim order of the Supreme Court of British Columbia, dated as of February 19, 2021 (the “Interim Order”), and, if deemed advisable, to pass, with or without variation, a special resolution (the “Arrangement Resolution”) to approve an arrangement (the “Arrangement”) in accordance with Division 5 of Part 9 of the Business Corporations Act (British Columbia) (the “BCBCA”) pursuant to the Arrangement Agreement (the “Arrangement Agreement”), dated as of January 14, 2021, as amended on April 1, 2021, by and among the Company, Atlantic Power Preferred Equity Ltd. (“APPEL”), Atlantic Power Limited Partnership (“APLP”), Tidal Power Holdings Limited, and Tidal Power Aggregator, L.P., (together with Tidal Power Holdings Limited, the “Purchasers”), to effect among other things, the acquisition by the Purchasers of all of the outstanding Common Shares in exchange for US$3.03 in cash per Common Share (less any applicable withholding taxes) (ii) a proposal to consider and vote on a proposal to approve, by non-binding, advisory vote, certain compensation arrangements for the Company’s named executive officers in connection with the Arrangement (the “NEO arrangement-related compensation proposal”); and (iii) a proposal, subject to the provisions of the Arrangement Agreement, to consider and vote on the proposal to approve the adjournment or postponement of the Common Shareholder Meeting, if necessary, to solicit additional proxies if there are insufficient votes at the time of the meeting to approve the Arrangement Resolution (the “Adjournment Resolution”). These proposals are described in more detail in the definitive information circular and proxy statement filed by Atlantic Power on March 2, 2021. The number of Common Shares outstanding and eligible to vote as of the record date for the Common Shareholder Meeting, February 16, 2021, was 89,222,568, and a total of 54,730,623 shares of Common Shares (61.34%) were represented at the meeting in person or by proxy.

Each of the matters submitted to a vote of the Company’s Common Shareholders at the Common Shareholder Meeting was approved by the requisite vote of the Company’s Common Shareholders. Set forth below is the number of votes cast for or against as to each such matter:

In addition, on April 7, 2021, APPEL, a wholly owned subsidiary of Atlantic Power, convened a special meeting (the “Preferred Shareholder Meeting”) of holders (the “Preferred Shareholders”) of preferred shares in the capital of APPEL, being (i) the 4.85% cumulative redeemable preferred shares, Series 1 in the capital of APPEL, (ii) the 7.00% cumulative rate reset preferred shares, Series 2 in the capital of APPEL, and (iii) the cumulative floating rate preferred shares, Series 3 in the capital of APPEL (collectively, the “Preferred Shares”).

The following matters were submitted to a vote of APPEL’s Preferred Shareholders at the Preferred Shareholder Meeting: (i) a proposal to consider and, if deemed advisable, to pass, with or without variation, a special resolution to approve the continuance (the “Continuance”) of APPEL from the jurisdiction of the Province of Alberta to the jurisdiction of the Province of British Columbia pursuant to Section 302 of the Business Corporations Act (British Columbia) (the “BCBCA”) and Section 189 of the Business Corporations Act (Alberta) (the “ABCA”) (the “Continuance Resolution”); and (ii) a proposal to consider, pursuant to an interim order of the Supreme Court of British Columbia, dated as of February 19, 2021, (the “Interim Order”) and, if deemed advisable, to pass, with or without variation, a special resolution to approve the Arrangement in accordance with Division 5 of Part 9 of the BCBCA pursuant to the Arrangement Agreement to effect among other things, the transfer to APPEL of all of the outstanding Preferred Shares in exchange for C$22.00 in cash per Preferred Share (less any applicable withholding taxes) (the “Preferred Shareholder Resolution”). These proposals are described in more detail in the definitive information circular and proxy statement filed by Atlantic Power on March 2, 2021. The number of Preferred Shares outstanding and eligible to vote as of the record date for the Preferred Shareholder Meeting, February 16, 2021, was 6,864,863, and a total of 3,843,338 Preferred Shares (55.99%) were represented at the meeting in person or by proxy.

Each of the matters submitted to a vote of APPEL’s Preferred Shareholders at the Preferred Shareholder Meeting was approved by the requisite vote of APPEL’s Preferred Shareholders. Set forth below is the number of votes cast for or against as to each such matter: