The Big Stone South-Brookings County project is an approximately 70-mile, 345 kV transmission line proposed between a new Big Stone South Substation near Big Stone City, S.D., to the Brookings County Substation near Brookings, S.D.
The project is one of 16 multi-value projects (MVP), as approved by the Midwest Independent Transmission System Operator (MISO) in December 2011. The MVPs will help expand and enhance the region’s transmission system, reduce congestion, provide access to affordable energy sources and meet public policy requirements, including renewable energy mandates.
Xcel Energy and Otter Tail Power Company are joint owners of the project. Xcel Energy is the development manager.
Multi Value Project Portfolio results and analyses – January 10, 2012
South Dakota permitting
The South Dakota Public Utilities Commission must issue a Facility Permit before transmission line construction.