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| Presque Isle Power Plant | |
|---|---|
 Presque Isle Power Plant | |
 | |
| Country | United States |
| Location | Marquette, Michigan |
| Coordinates | 46°34′45″N87°23′47″W / 46.57917°N 87.39639°W /46.57917; -87.39639 |
| Status | Decommissioned |
| Decommission date | Units 1-2: January 2007 Units 3-4: October 2009 Units 5-9: March 2019 |
| Owner | Wisconsin Energy |
| Thermal power station | |
| Primary fuel | Coal |
| Cooling source | Lake Superior |
| Power generation | |
| Nameplate capacity | 431MW |
ThePresque Isle Power Plant was acoal power plant located atMarquette, Michigan, on the shore ofLake Superior. The plant has 5 inactive 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 byCleveland-Cliffs Iron Company. Units 1 and 2 were retired on January 1, 2007. Units 3 and 4 were retired on October 1, 2009. Units 5 through 9 went into service between 1975 and 1979 and were retired in March 2019.[1]
This plant generated 90% of the Upper Peninsula's electricity and 12% of the electricity in theWisconsin Energy system.[citation needed] Half of the plant's generating capacity went to the Empire and Tilden iron ore mines on the nearbyMarquette Iron Range.[citation needed]
The plant was sold to UPPCO in the early 1980s as Cleveland-Cliffs struggled, and it is now owned by Wisconsin Energy. The plant is connected to the grid by numerous 138-kilovolt transmission lines and one 345-kilovolt line known as the Presque Isle–Plains–Morgan line which runs from Marquette southwest to Plains Substation nearIron Mountain and south to the Morgan Substation just outsideOconto Falls, Wisconsin, where it ties into other 345-kilovolt lines going south towardsMilwaukee andAppleton and west towardsWausau, Wisconsin, andSt. Paul, Minnesota.
In 2006, the plant incorporated a new process for capturing and reducingmercury emissions.[2]
We Energies has indicated that it may be forced to permanently shut down the Presque Isle plant in 2017 as it may not be able to meet new EPA pollution standards that will be in place at that time, though in 2012 there was an announcement of investment to upgrade the facility to meet standards.[3] We Energies andAmerican Transmission Company are looking at building two new 345,000-volt transmission lines from Wisconsin to theUpper Peninsula of Michigan. If the new lines are built, one would go fromGreen Bay, Wisconsin toIshpeming, Michigan and the second 345kv line would go from theWeston Power Plant nearWausau, Wisconsin north to Marquette.
On March 31, 2019, the plant was decommissioned and its generating capacity was replaced with two newgas-fired power plants: A.J. Mihm Generating Station and F.D. Kuester Generating Station.[4]
