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Continued: Minnesota power plants cut mercury in half

That law affected six other coal units at the Sherco and Boswell plants and at Xcel’s Allen S. King plant in Oak Park Heights. The upgrade to the King plant was part of Xcel’s Metropolitan Emissions Reduction Project, which also retired two other Twin Cities coal generators and replaced them with natural gas-fired units.

They have also added alternative sources of energy, primarily wind.

 

marcotty@startribune.com

612-673-7394 • @marcotty

dshaffer@startribune.com

612-673-7090 • @ShafferStrib

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