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Minnesota Power celebrates project

Minnesota Power officials celebrated the completion of a three-year, $240 million project Thursday to reduce air pollution from one of its coal-burning power plant units in Cohasset. The Duluth-based utility used Earth Day to announce that the pr...

Minnesota Power officials celebrated the completion of a three-year,

$240 million project Thursday to reduce air pollution from one of its coal-burning power plant units in Cohasset.

The Duluth-based utility used Earth Day to announce that the project was completed -- a move the utility says should slash mercury, sulfur dioxide and particulate emissions by more than 90 percent and nitrogen oxides by more than 80 percent.

The improvements to comply with federal clean air regulations were made to the No. 3 unit at the utility's Boswell Energy Center along the Mississippi River.

Minnesota Power officials have cited the cost of pollution prevention and efforts to cut carbon dioxide emissions, such as adding new wind energy, as part of the justification for the company's current request for a rate increase.

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