Atlantic Power: Soliciting Material Under §240.14A-12 Atlantic Power Corporation

The following excerpt is from the company's SEC filing.

(Name of Registrant as Specified In Its
Charter)

(Name of Person(s) Filing Proxy Statement,
if other than the Registrant)

Payment of Filing Fee (Check the appropriate
box):

No fee required.

Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

Title of each class of securities to which transaction applies:

Aggregate number of securities to which transaction applies:

Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how i t was determined):

Proposed maximum aggregate value of transaction:

Total fee paid:

Fee paid previously with preliminary materials.

Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:

Form, Schedule or Registration Statement No.:

Filing Party:

Date Filed:

Atlantic Power Corporation Investor Call

January 15, 2021 8:00 AM ET

Transcript

Operator

Good morning, everyone, and welcome to the Atlantic Power investor
conference call. (Operator Instructions) Please note, today's event is being recorded.

I would now like to turn the conference over to Ron Bialobrzeski,
Director of Finance. Please go ahead, sir.

Ron Bialobrzeski

Atlantic Power Corporation - Director
of Finance

Welcome. Thank you for joining us this morning.

The accompanying presentation for today's call and webcast can
be found in the Conference Calls section and on the homepage of our website. Also available on our website is a summary of
key questions and answers related to the proposed transaction that may be of interest to investors.

Before we begin, we want to remind everyone that Atlantic Power
will file with the SEC and Canadian Securities Administrators and mail to its securities holders a management information circular
and proxy statement in connection with the proposed transaction. We urge investors to read the management information circular
and proxy statement, when it becomes available, because it will contain [important information] about the proposed transaction.
The management information circular and proxy statement, when it becomes available, will also include information about persons
who may be deemed to be participants in the solicitation of proxies from Atlantic Power's security holders in the proposed transaction,
including information regarding the interest of Atlantic Power's directors and executive officers in the transaction. You may obtain
a free copy of the management information circular and proxy statement when available at the SEC's website, www.sec.gov, or on
Atlantic Power's website at www.atlanticpower.com.

We also remind you that this call includes forward-looking statements
as defined under U.S. securities laws, which involve a number of known and unknown risks, uncertainties and other factors, many
of which Atlantic Power is unable to predict or control, that may cause the company's plans with respect to the proposed transaction,
actual results or performance to differ materially from current expectations. Factors that could cause actual results to differ
and other important information are included on Page 2 of the slides accompanying this presentation and in the company's SEC
reports.

Now I'll turn the call over to Jim Moore, President and CEO
of Atlantic Power.

James J. Moore, Jr.

Atlantic Power Corporation -
CEO, President & Director

Thank you, Ron. Welcome, everyone. Good morning. Thank you for
joining us today. The Atlantic Power management team is on the call this morning as well.

Last night, we announced an agreement to be acquired by I Squared
Capital. This is a good day for Atlantic Power's common holders and our other securities holders. We expect the closing to occur
in the second quarter of this year. The key conditions of the transaction are centered around the acquisition of all our publicly
traded securities.

When I joined the company in January 2015, I told
shareholders we would not be an entrenched management team. In previous management roles, I've been involved in selling IPP
companies 3 times.

In 2014, Atlantic Power ran a sales process that did not result
in a transaction.

In 2015, again when I joined as CEO, the company was threatened
with shareholder lawsuits and large walls of debt.

It took us several years, but we resolved the lawsuits without
making any payments. We paid down more than $1.1 billion of debt. We restructured debt maturities. We reduced the cash interest
payments by more than 70%. We sold assets at attractive prices. We mothballed other plants. We acquired yet other plants at attractive
prices. And we reduced the corporate overheads by nearly 50%.

Six years later, our share price has not reflected that progress.
As we point out in the investor presentation, Atlantic Power is a micro-cap energy company with a declining EBITDA profile. We
have previously heard from some investors that the company was too small and idiosyncratic to be public. We have been open to approaches
over the last six years. We've had numerous M&A conversations, and some went beyond preliminary discussions.

So along came I Squared Capital. We signed an agreement with
them yesterday. The I Squared team was resilient, resourceful and creative. They were the first firm that was able to unlock what
we consider fair value for our securities holders.

The Board and the management have worked very hard for years
to keep our eyes on whether the shareholders are better served by holding or selling the company. We have not been interested in
any inadequate proposals. As the management team, we love being independent and contrarian. Our Board is truly supportive of taking
the type of approach outlined in The Outsiders book we discussed in some of our letters to shareholders. Selling the company is
bittersweet.

But with our shareholder hat on, it's increasingly obvious that
the next five years might be a repeat of the last five years. Even if we could deploy all of our discretionary cash flow into growth,
it wouldn't be meaningful enough to offset the total decline in EBITDA from PPA expirations and lower power prices. And with declining
EBITDA, the credit of our securities may become more challenged over time. The preferred shares are perpetual and the Medium Term
Notes have long remaining tenor. By contrast, the Term Loan B gets paid off much sooner. If power prices remain lower for longer,
as they have since 2017 when we discussed that scenario, our ability to continue paying dividends on our preferred shares or to
pay off our Medium Term Notes likely would be increasingly challenged. Instead, this transaction would de-risk all our securities
at a premium to the recent and longer-term (over five years, say) trading ranges for those securities.

Getting all of our holders the ability to de-risk today at premiums
to those trading ranges is a good outcome, in our opinion.

The management and the Board, who are significant owners with
approximately 4% of the shares, have concluded that this is in the best interest of shareholders and security holders to sell at
these cash prices.

I encourage you to read the press release and other materials
we filed with the SEC this morning. The presentation and a series of investor Q&A can be found on our website. In the coming
weeks, we'll be filing the management information circular and a proxy that will contain additional detail on the transaction.

Today, we wanted to give you our thinking on why it is time
to sell and why this is a compelling transaction. I, and the rest of the management team and the Board, will be voting yes on the
transaction. We will work hard to obtain the necessary approvals to close the transaction.

Today, we ask you to limit your questions to the announcement
as we do not plan to address other matters. Operator, we are ready to begin the Q&A session.

QUESTIONS AND ANSWERS

(Operator Instructions) Today's first question comes from Nelson
Ng with RBC.

Nelson Ng

RBC Capital Markets, Research Division - Analyst

Congrats on the transaction. Just to clarify on the background
of the transaction. Since I Squared approached you guys, was it mainly a back and forth between the two parties? Or were there
other bidders involved in the process during that time?

Yeah, so let me tell you this. I've got to be very careful today.
I want to -- I don't want to disclose anything that's not disclosed in what we released last night, put on the SEC website. Usually, I'm
very unscripted and discursive, but I have to be careful that all our shareholders have the same information. And so we're going
to try to stay well away from any legal or ethical boundaries in what we discuss.

What I can tell you is that over the six years I've been here,
we've always been willing to talk to potential bidders. We've talked to many of them. We've signed NDAs with some of them. We've
gotten price quotations from some of them.

And so we view it that the company was put up for sale in 2014,
a process was run. And from when I joined in January of 2015 through today, it's been more or less a rolling process where
if credible bidders come in with credible prices and they're willing to talk, we've been willing to talk. I Squared is the first
firm that was able to come up with an offer that we deemed a good deal for our shareholders.

And our next question today comes from Rupert Merer with National
Bank.

Rupert M. Merer

National Bank Financial, Inc., Research
Division - MD and Research Analyst

Congratulations on the deal. If another party was to come forward
now and offer an attractive price, is there a break fee associated with this offer? I'm not sure that's public so I'm not sure
what you can tell me.

Yes. There is a break fee and a reverse break fee. I don't want
to say exactly what they are because I'm not sure if we've disclosed those. But if they're not in the disclosures this morning,
keep your eyes out for the circular and any future disclosures. But I'll it leave at that.

Jim? Jim?

Yes? Sorry.

Just -- I was going to indicate that is discussed in the investor
question-and-answer document that's available on the homepage and the Conference Calls page of the company website.

Thank you, [Elizabeth].

Ladies and gentlemen, this concludes the question-and-answer
session. I'd like to turn the conference back over to James Moore for any final remarks.

All right. Thanks, everybody, for being here.

It's been an honor to be the CEO for six years. I think you've
got a great management team and a great Board of Directors. And as I say, it's a bittersweet deal. But we've looked at it carefully,
and we're going to recommend and vote our shares in favor of this deal and encourage all our fellow securities holders to go ahead
and de-risk at this time at these cash prices, which the Board and the management team deemed to be a good outcome for everybody.

Thank you very much for joining, and appreciate you being on
the call.

Thank you, sir, and thank you all for attending today's presentation.
Today's conference has now concluded. Have a wonderful day.

Communication posted on Atlantic Power's website at www.atlanticpower.com:

Key Questions

Q. Background of this transaction? Did you run a process?

They approached us

As we’ve said before, we didn’t think time was right to run a process given market conditions

But we have always been willing to talk with any interested party and we have talked with a number over the years. Some discussions got further along than others

These folks did serious work on the company, more work than anybody else had. They were very creative and diligent in their approach, and came up with a proposal that we thought made sense for our shareholders

Q. Why this type of structure rather than a more conventional acquisition of only the common shares?

That’s really a question for I Squared

As I noted, they were really creative in their approach to how best to structure a deal that worked for them as well as us

Q. Why sell now? Why not wait until power markets show some improvement?

No guarantee they will improve

The real question is could you get a sufficiently better price by waiting. You might, but there’s no guarantee, and there’s no income on the shares, so you don’t get paid for waiting. Some of our investors have brought this up with us. Until now, there wasn’t a sufficiently good alternative to waiting it out. We think this deal is it.

Q. Does this reflect a more pessimistic view on your part of market conditions or the re-contracting

outlook?

The timing was driven by their approach to us

The fact is, forward power curves have continued to come down

The more significant re-contracting challenges are still two to five years out. But the way these work, there’s very little visibility until you get much closer to the PPA expiration date. In our view, the price for the shares takes the re-contracting risk off the table.

Q. How does the $3.03 price for the common shares compare to your estimates of IV?

As we’ve always said, our IV estimate is a range, not a point estimate

Reflects wide range of possible scenarios

To do better than $3.00, we’d need a material uplift in power prices and good outcomes on re-contracting

It could happen, but Board and management are of the view that the better alternative is to de-risk by selling for cash now

We came to that conclusion after studying possible outcomes over the next three to five years and conducting a probability analysis together with our financial advisors

Q. What did the Board look at in analyzing the offer?

Very thorough and rigorous approach in conjunction with financial and legal advisors

Also solicited fairness opinions from independent financial firms

There’ll be more details in the circular on the process

Q. Can you walk us through how I Squared thought about the relative prices for the common vs the

preferred? Why are the prefs getting less than par?

I can’t really comment about how I Squared structured the transaction, but I will say that:

Both securities would be acquired at meaningful cash premiums to recent trading levels

The prefs haven’t traded at par since we acquired them as part of the Capital Power Income LP transaction in 2011

There’s no requirement for us to redeem the preferred shares if we remain an independent company

Q. How do you view the probability of getting a deal done?

Most of the approvals are fairly typical in terms of third-party consents and regulatory approvals such as FERC

The less typical aspect is the vote by each group of security holders. We’re not going to handicap the voting outcome, other than to say that we think the acquisition offer is attractive relative to recent trading levels

Q. Timeline / next steps

We’ll be filing a management information circular or proxy in the next three to four weeks

It will contain more information on the transaction as well as the shareholder voting process

We’ll be working through the other needed approvals during this time

Hope to close sometime in the second quarter

Q. Will there be changes in management?

To date our focus has been on getting the best deal for the shareholders

We do expect there to be a reduction in the executive ranks consistent with no longer being a public company

Cautionary Note Regarding Forward-Looking Statements

To the extent any statements made in this
document contain information that is not historical, these statements are forward-looking statements within the meaning of Section 27A
of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended, and
forward-looking information under Canadian securities law (collectively, “

Certain statements in this document may
constitute forward-looking statements, which reflect the expectations of Atlantic Power’s management regarding the business
prospects and opportunities of Atlantic Power and its projects and the transaction. These statements, which are based on certain
assumptions and describe Atlantic Power’s future plans, strategies and expectations, can generally be identified by the use
of the words “plans”, “expects”, “does not expect”, “is expected”, “intends”,
“anticipates” or “does not anticipate”, “believes”, “outlook”, “objective”,
or “continue”, or equivalents or variations, including negative variations, of such words and phrases, or state that
certain actions, events or results “may”, “could”, “would”, “should”, “might”
or “will” be taken, occur or be achieved. Examples of such statements in this document include, but are not limited
to, statements with respect to the following:

the anticipated benefits of the transaction to the parties, the holders of Atlantic Power’s
common shares and convertible debentures, the holders of Atlantic Power Preferred Equity Ltd.’s preferred shares and the
holders of Atlantic Power Limited Partnership’s medium term notes;

the anticipated receipt of required regulatory, court and securityholder approvals for the transaction;

the receipt of third-party consents necessary to satisfy closing conditions to the transaction;

the ability of the parties to satisfy the other conditions to, and to complete, the transaction;

the mailing of the management information circular and proxy statement and/or consent solicitation
documents; and

the anticipated timing of the closing of the transaction.

Forward-looking statements involve significant
risks and uncertainties, should not be read as guarantees of future performance or results, and will not necessarily be accurate
indications of whether or not or the times at or by which such performance or results will be achieved. Risks and uncertainties
inherent in the nature of the transaction include the failure of Atlantic Power, Atlantic Power Limited Partnership, Atlantic Power
Preferred Equity Ltd. and I Squared Capital and its affiliates to obtain necessary securityholder, regulatory and court approvals,
including those noted above, obtain third-party consents, or to otherwise satisfy the conditions to the completion of the transaction,
in a timely manner, or at all. Failure to so obtain such approvals or consents, or the failure of the parties to otherwise satisfy
the conditions to or complete the transaction, may result in the transaction not being completed on the proposed terms, or at all.
Please also refer to the factors discussed under “Risk Factors” and “Forward-Looking Information” in Atlantic
Power’s periodic reports as filed with the U.S. Securities and Exchange Commission (the “

”) from time
to time for a detailed discussion of the risks and uncertainties affecting Atlantic Power. The anticipated dates provided may change
for a number of reasons, including unforeseen delays in preparing securityholder meeting or consent solicitation materials, the
inability to secure necessary securityholder, regulatory, court or other third-party approvals or consents in the time assumed,
delays resulting from the impact of the COVID-19 pandemic, or the need for additional time to satisfy the other conditions to the
completion of the transaction. Although the forward-looking statements contained in this document are based upon what are believed
to be reasonable assumptions, investors cannot be assured that actual results will be consistent with these forward-looking statements,
and the differences may be material. These forward-looking statements are made as of the date of this document and, except as expressly
required by applicable law, Atlantic Power assumes no obligation to update or revise them to reflect new events or circumstances.

Additional Information about the Arrangement
and Where to Find It

This document is not intended to and does
not constitute an offer to sell or the solicitation of an offer to subscribe for or buy or an invitation to purchase or subscribe
for any securities or the solicitation of any vote, consent or approval in any jurisdiction, nor shall there be any sale, issuance
or transfer of securities in any jurisdiction in contravention of applicable law. This document has been prepared in respect of
the transaction involving Atlantic Power, Atlantic Power Limited Partnership, Atlantic Power Preferred Equity Ltd., and certain
funds managed by I Squared Capital (the “

Purchasers

”) pursuant to the terms of the Arrangement Agreement by
and among Atlantic Power, Atlantic Power Limited Partnership, Atlantic Power Preferred Equity Ltd. and the Purchasers and may
be deemed to be soliciting material relating to the transaction. In connection with the transaction, Atlantic Power will file
a management information circular and proxy statement relating to a special meeting of the holders of its common shares with the
SEC and Canadian Securities Administrators. Additionally, Atlantic Power will file other relevant materials in connection with
the transaction with the SEC.

Securityholders of Atlantic Power are urged to read the management information circular and proxy
statement and/or consent solicitation documents regarding the transaction and any other relevant materials carefully in their
entirety when they become available before making any voting or investment decision with respect to the transaction because they
will contain important information about the transaction and the parties to the Arrangement Agreement.

The definitive management
information circular and proxy statement will be mailed to holders of Atlantic Power’s common shares. Holders of Atlantic
Power’s common shares will be able to obtain a copy of the management information circular and proxy statement, and the
filings with the SEC and Canadian Securities Administrators that will be incorporated by reference into the management information
circular and proxy statement, as well as other filings containing information about the transaction and the parties to the Arrangement
Agreement made by Atlantic Power with the SEC and Canadian Securities Administrators free of charge on EDGAR at www.sec.gov, on
SEDAR at

www.sedar.com

, or on Atlantic Power’s website at www.atlanticpower.com. Information contained on, or that
may be accessed through, the websites referenced in this communication is not incorporated into and does not constitute a part
of this document. We have included these website addresses only as inactive textual references and do not intend them to be active
links.

Participants in the Solicitation

Atlantic Power and its directors and executive
officers may be deemed to be participants in the solicitation of proxies from the holders of Atlantic Power’s common shares
in respect of the transaction. Information about Atlantic Power’s directors and executive officers is set forth in the proxy
statement and proxy circular for Atlantic Power’s 2020 Annual General Meeting of Shareholders, which was filed with the SEC
and Canadian Securities Administrators on April 28, 2020. Investors may obtain additional information regarding the interest
of such participants by reading the management information circular and proxy statement regarding the Arrangement when it becomes
available.

The above information was disclosed in a filing to the SEC. To see the filing, click here.

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Other recent filings from the company include the following:

Atlantic Power: (Name Of Registrant As Specified In Its Charter) - Feb. 24, 2021
Preliminary proxy statements relating to merger or acquisition - Feb. 19, 2021
RBC Global Asset Management Inc. just provided an update on share ownership of Atlantic Power Corporation - Feb. 16, 2021
Neuberger Berman Investment Advisers LLC just provided an update on share ownership of Atlantic Power Corporation - Feb. 11, 2021
JPMORGAN CHASE & CO. just provided an update on share ownership of Atlantic Power Corporation - Feb. 8, 2021

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