environmental upgrade

Minnesota Power Marks Completion of Emissions-Reduction Project At Boswell Plant

Minnesota Power completed an emissions reduction project at the Boswell Energy Center to reduce mercury emissions by 90 percent and to meet all state and federal regulations for sulfur dioxide emissions and particulates. Unit 4, capable of producing 585 MW, is Minnesota Power's largest coal-fired generating unit. Total cost of the Boswell project is about $260 million.