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Lennox Generating Station



Canada’s largest oil/gas-fuelled generating station, Lennox GS is located on the north shore of Lake Ontario in the Town of Greater Napanee in Eastern Ontario. The last of the station’s four generators came into service in 1977 with a total output of 2,100 megawatts of electricity. That’s enough electricity to meet approximately 8 percent of the electricity needs of the Province of Ontario. The plant currently employs about 160 people. Their skills and experience are essential for making Lennox GS available to operate 24 hours a day, 365 days of the year.

The oil used at Lennox GS is known as residual oil - a by-product left after removing higher value products like gasoline from the refining process. Oil produces relatively low air emissions per unit of electrical power produced, but to further improve environmental performance and to add fuelling flexibility, in 1997 Ontario Power Generation (OPG) and Union Gas Limited invested over $40 million to build a 17 kilometre pipeline and to convert the station’s boilers to burn either oil or natural gas. This flexibility helps OPG meet its air emission targets, while allowing Lennox GS to reduce operating costs by taking advantage of spot market fuel prices. Lennox GS mainly uses natural gas in the spring, summer and fall to ensure that supplies are available for home heating during the winter months.


Community Contact

Your community contact is
Mike Kavanagh
(613) 352-3525 x5303

Station Brochure


Download our Lennox station brochure.


Community Connection

Find out more about all the ways the Lennox Generating Station is making a difference in your community.


SD Report

Our 2008 Sustainable Development Report is now available for download.