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Lennox Generating Station



Canada’s largest oil/gas-fuelled electricity generating station, Lennox Generating Station (GS), is located on the north shore of Lake Ontario, in the Town of Greater Napanee, in eastern Ontario. With a generating capacity of 2,100 megawatts (MW), Lennox GS can produce enough electricity to meet approximately 8 per cent of the province of Ontario’s needs. Historically, the station’s annual electricity production has been as high as 3.16 billion kilowatt-hours (kWh), enough to supply about 250,000 homes for a year. Lennox GS’s role is to provide reliability during peak demand times and back up when other sources are not available.

Lennox GS employs about 160 people from the surrounding community. Their skills and experience are essential to safe and reliable operation.

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. To 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 reduce air emissions, while allowing Lennox GS to reduce operating costs by taking advantage of spot market fuel prices.