Presque Isle Power Plant

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The Presque Isle Power Plant is an electric generating plant located in Marquette, Michigan on the shore of Lake Superior. The plant has 6 generating units with a total generating capacity of 650 megawatts. This plant has two smokestacks 450' in height and was built in 1955. Units #6 and #7 went into service in 1979.

This plant generates 90% of the Upper Peninsula's electricity. Half of the plants generating capacity goes to the Tilden Mine and Empire Mines in Marquette County, Michigan.

The plant is owned by Wisconsin Energy and is connected to the grid by numerous 138kV transmission lines and one 345kV line known as the Presque Isle-Plains-Morgan line which runs from Marquette southwest to Iron Mountain and south to Appleton, Wisconsin where it ties into numerous other 345Kv lines going south towards Milwaukee and west towards Wausau, Wisconsin and St. Paul, Minnesota.