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Ontario Power Generation


Ontario Power Generation (OPG) is an Ontario-based electricity generation company whose principal business is the generation and sale of electricity in Ontario. Our focus is on the efficient production and sale of electricity from our generation assets, while operating in a safe, open and environmentally responsible manner.

OPG's generating portfolio has a total capacity of over 19,000 megawatts (MW) making us one of the largest power generators in North America. Our generating assets include:

  • 2 nuclear generating stations
  • 5 thermal generating stations
  • 65 hydroelectric generating stations

OPG also owns two other nuclear generating stations which are leased on a long-term basis to Bruce Power L.P.

In 2010, OPG generated 88.6 terawatt hours (TWh) of electricity. Ontario Power Generation is committed to enhancing the quality of life in the communities where it operates. Through our Corporate Citizenship Program, the company provides financial and in-kind support to registered charities and not-for-profit environmental, educational and community organizations whose initiatives reflect OPG's vision of citizenship and sustainable development.

OPG also annually purchases approximately $1 billion in goods and services from primarily Ontario-based suppliers and contributes to the province in taxes, dividends and other payments.


700 University Ave., H9
Toronto, Ontario M5G 1X6
Phone: 416-592-2555