Xcel Energy has filed plans that the company says will reduce mercury emissions from two Minnesota plants by 90 percent.
The plans were filed with the Minnesota Public Utilities Commission and the Minnesota Pollution Control Agency and involve the King Plant in Oak Park Heights and the Sherco Plant in Becker. The control of the mercury emissions will occur through installation and operation of a sorbent injection systems.
Each system is expected to cost $4.5 million for installation and anywhere from $3.8 to $5.5 million annually to operate. On average, it will cost a residential customer 16 cents a month.
The plan still needs to be approved by state regulators before they can be implemented.