Thunder Bay Generating Station

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Thunder Bay Generating Station
Thunder Bay Generating Station is a coal fired station owned by Ontario Power Generation, located on Mission Island on the shore of Thunder Bay, an inlet of Lake Superior. The plant provides energy to parts of Thunder Bay District in Northwestern Ontario. Thunder Bay Generating Station began operation in 1963, with one 100 MW coal-fuelled generating unit. Two additional coal-fuelled units were added in the early 1980s, and in 1984 the original 100 MW unit was removed from service. This plant is connected to the power grid via 115 Kv and 230 Kv transmission lines. Its two coal-fuelled boilers provide a peak output of 326 MW fuelled by low sulphur lignite coal from Western Canada and low sulphur sub-bituminous coal from the Powder River Basin in the United States. Annual production at the plant is approximately 1.5 billion kilowatt-hours (KWh), enough energy to supply over 100,000 households for one year. The station occupies 53 ha (131 acres) on Mission Island, at the mouth of the Kaministiquia River delta on Thunder Bay. The plant's chimney is 198 m (650 ft) tall and the steam temperature is 538 °C (1,000 °F).