The Presque Isle Power Plant is an electric generating plant located at Marquette, Michigan, on the shore of Lake Superior. The plant has 5 active generating units with a total net generating capacity of 431 Megawatts. This plant has two smokestacks 400 and 410 feet (122 and 125 m) in height and was built in 1955 by Cleveland-Cliffs Iron Company. Units 1 and 2 were retired on January 1, 2007. Units 3 and 4 were retired on October 1, 2009.