Boswell Energy Center, Unit 3

Boswell Energy Center air emission project

Minnesota Power is investing nearly $200 million to reduce mercury emissions and cut nitrogen oxide and sulfur dioxide emissions from its Boswell 3 generating unit at Cohasset. The project addresses new Environmental Protection Agency rules dealing with interstate air quality, mercury reduction, and regional haze.

Installing "Best Available Control Technology," eliminates nearly all Boswell 3 particulate matter emissions, reduces mercury emissions by up to 90 percent, and cuts nitrogen oxide and sulfur dioxide emissions by more than 80 percent.

The Boswell 3 generating unit produces 350 megawatts of electricity, the second largest generator operated by Minnesota Power. Work on the project began in 2007 and is expected to be completed by the end of 2009. Separately, Minnesota Power has invested about $36 million of an estimated total expenditure of about $60 million to upgrade emissions control equipment at its Laskin Energy Center at Hoyt Lakes and Taconite Harbor Energy Center at Schroeder. These two emission control projects are known as AREA, for Arrowhead Regional Emission Abatement. Work is essentially complete at the two-unit Laskin facility, while one of three generating units has been retrofitted at Taconite Harbor.

Project News

$200 million Boswell 3 upgrade begins 2nd construction season

COHASSET, MN— Minnesota Power has begun a second season of construction at its Clay Boswell electric generating plant here.

The utility Read More »

Company Press Releases

Fewer air emissions at Boswell Energy Center this Earth Day

Cleaner air in the skies above Minnesota Power’s second-largest generating unit was cause for an Earth Day observance at the Read More »