Skip Ribbon Commands
Skip to main content
frequently asked questions Home

frequently asked questions


When was OPG incorporated?

OPG was incorporated on Dec. 1, 1998.

What happened to Ontario Hydro?

Ontario Hydro was restructured on April 1, 1999 into five successor companies. Ontario Power Generation was established to operate the electricity generating assets of Ontario Hydro.

Is OPG owned by the government or is it a private company?

OPG is a commercial company that is 100 per cent owned by the Province of Ontario.

How many employees does OPG have?

OPG employs approximately 10,000 people in communities across Ontario.

Where is OPG's head office located?

700 University Ave.
Toronto, Ontario, Canada
M5G 1X6

Back to top

Power Generation

How much of Ontario’s electricity does OPG produce?

OPG generates almost half of the power produced in Ontario, more than 99 per cent of which is free from smog and greenhouse gas emissions.

What is OPG's generating capacity?

​OPG's generating portfolio has a total in-service generating capacity of approximately 17,000 megawatts (MW).

Where can I find information on OPG’s generating facilities?

More information about our generating facilities is available in the Generating Power section of this website.

What has happened to OPG’s coal-fired generating stations?

In April of 2014, Ontario Power Generation burned its last piece of coal to generate electricity in Ontario. This move off coal was North America’s single largest climate change initiative and the equivalent of taking seven million cars off the road. This made Ontario the first jurisdiction in North America to fully eliminate coal as a source of electricity generation.

Atikokan and Thunder Bay generating stations have been converted from coal to biomass, a sustainable fuel.

Lennox Generating Station is dual-fuelled by oil and natural gas.

Lambton and Nanticoke generating stations have been safely removed from service and are being decommissioned.

What types of generating stations does OPG operate?

OPG has a diversified portfolio of generating assets which include:

2 nuclear stations

66 hydroelectric stations on 24 river systems

2 biomass stations

1 thermal station

1 wind turbine

Back to top


How do I contact Investor Relations?

Call 416-592-4008 or email

Where can I view OPG's financial reports?

Quarterly and annual reports are available for download on the Financial Reports page. ​

What is OPG’s fiscal year-end?

OPG’s fiscal year-end is December 31. ​

Where can I find historical OPG financial statements?

Historical financial statements can be found in the archives of the Financial Reports page. ​

Where can I purchase shares in OPG?

OPG shares cannot be purchased at this time. OPG is 100 per cent owned by the Province of Ontario. ​

Who is OPG’s external auditor?

OPG’s external auditor is Ernst & Young LLP. ​

Where can I find information regarding the current market price of power in Ontario?

For information on real time power prices in Ontario, visit the Independent Electricity System Operator’s website at

With which neighbouring markets is the Ontario market interconnected?

The Ontario market is interconnected with the New York, Michigan, Quebec, Manitoba and Minnesota markets. ​

Back to top