MADISON, Wis. -

A Virginia-based energy provider said it will continue with plans to close and decommission its Kewaunee Power Station in northeastern Wisconsin.

Dominion Resources, Inc. said Tuesday that the Midwest Independent System Operator determined the shutdown will not affect the reliability of the regional electrical grid.

The Midwest Independent System Operator is a federally-regulated firm that manages energy exchange among Midwest states and Manitoba.

The Kewaunee Power Station is one of two active nuclear facilities in Wisconsin. It is located 34 miles from Green Bay, on the shore of Lake Michigan.

The company announced plans last fall to close Kewaunee in the second quarter of 2013, after it was unable to find a buyer for the 556-megawatt nuclear power plant in Carlton.

Dominion CEO Thomas F. Farrell II said the employees of Kewaunee have been doing "an outstanding job," and the decision to close the plant "is in no way a reflection on them."

The plant will remain under the oversight of the Nuclear Regulatory Commission during the shutdown and decommissioning.

The plant has an estimated 400 employees.