Overview

Atlantic Power owns and operates a diverse fleet of twenty-three power generation assets across nine states in the United States and two provinces in Canada. The Company’s power generation projects sell electricity to utilities and other large commercial customers largely under long-term power purchase agreements, which seek to minimize exposure to changes in commodity prices. The aggregate gross electric generation capacity of this portfolio is approximately 2,138 megawatts (MW), and the Company’s aggregate net ownership interest is approximately 1,500 MW. Nineteen of the projects are currently operational, totaling 1,975 MW on a gross capacity basis and 1,337 MW on a net ownership basis. The remaining four projects, all in Ontario, are not operational, three due to revised contractual arrangements with the offtaker and the other, Tunis, has a forward-starting 15-year contractual agreement that will commence between November 2017 and June 2019.

Atlantic Power trades on the New York Stock Exchange under the symbol AT and on the Toronto Stock Exchange under the symbol ATP.

Listed Securities:

Common shares

ATP:TSX; AT:NYSE
Shares Issued & Outstanding: 115,211,976

Preferred shares

Dividends on preferred shares are paid quarterly in Canadian dollars.

AZP.PR.A:TSX (par value Cdn$25.00)
Shares Issued & Outstanding: 4,750,000
Interest rate: 4.85%

AZP.PR.B:TSX (par value Cdn$25.00)
Shares Issued & Outstanding: 2,338,094
Interest rate: 5.57%

AZP.PR.C:TSX (par value Cdn$25.00)
Shares Issued & Outstanding: 1,661,906
Interest rate: floating rate which is calculated quarterly using the Canadian Government 90-day Treasury Bill yield plus 4.18%.

5.75% Series C Convertible Subordinated Debentures

The Debentures pay interest semi-annually on June 30 and December 31 each year. The Debentures mature on June 30, 2019 and are convertible into 57.9710 common shares per US$1,000 principal amount of Debentures, at any time, at the option of the holder, representing a conversion price of US$17.25 per common share.

Ticker Symbol: ATP.DB.U:TSX Principal Amount Outstanding: US$42.5 million

6.00% Series D Convertible Subordinated Debentures

The Debentures pay interest semi-annually on June 30 and December 31 each year. The Debentures mature on December 31, 2019 and are convertible into 68.9655 common shares per Cdn$1,000 principal amount of Debentures, at any time, at the option of the holder, representing a conversion price of Cdn$14.50 per common share.

Ticker Symbol: ATP.DB.D:TSX Principal Amount Outstanding: Cdn$81.0 million

Transfer Agent:

Computershare Investor Services, Inc
100 University Avenue, 8th Floor Toronto, ON M5J 2Y1

Legal Counsel:
Goodmans LLP
Bay Adelaide Centre
333 Bay Street, Suite 3400
Toronto, ON M5H 2S7 CANADA

Cleary Gottlieb
One Liberty Plaza
New York, NY 10006

Auditor:
KPMG LLP
345 Park Avenue
New York, NY 10154 USA

Our Office Locations:
Dedham, MA (Headquarters):
3 Allied Drive, Suite 220
Dedham, MA 02026
617-977-2400
617-977-2700 (Investor Relations)
Info@atlanticpower.com

EMERGENCY HOTLINE
To report an emergency at one of our facilities,
please call: 617-977-8588

San Diego:
8835 Balboa Avenue, Ste. D
San Diego, CA 92123
858-492-5460