Tranche One Transmission Projects
The Midcontinent Independent System Operator (MISO) approved a $10.3 billion investment package of 18 transmission projects, three of which are entirely or partially located in Minnesota. The projects were called Tranche One.
About the project
These projects were approved by MISO to help integrate additional generation, mainly renewables, and to increase resiliency in the electricity energy grid. The Minnesota Public Utilities Commission (Commission) is beginning its review of applications related to the Tranche one projects in Minnesota, which will include certificate of needs and route permits for the individual projects. MISO assumes in-service dates by 2030.
How to comment
We welcome and encourage public participation by making a comment.
Landowner Rights
If a utility company plans to build transmission lines on or near your property, understanding your rights as a landowner is essential.
Map of project
Current projects under consideration
Big Stone South-Alexandria-Big Oaks
Several utilities are jointly pursuing permits and approvals from the Minnesota Public Utilities Commission (Commission) for the proposed Big Stone South-Alexandria-Big Oaks Transmission Project (the Project).
Mankato to Mississippi
This project includes the installation of an approximately 130-mile single circuit 345kV transmission line beginning at the existing Wilmarth Substation and running east to the Mississippi River near Kellogg.
Minnesota Energy Connection
Xcel Energy has applied to the Minnesota Public Utilities Commission (Commission) for a certificate of need and a route permit to construct the Minnesota Energy Connection (MNEC) Project, a new 345-kilovolt (kV) double-circuit transmission line between the existing Sherco Substation in the city of Becker, Minnesota and a new substation (Terminal Substation) proposed near the town of Garvin in Lyon County, Minnesota.
Northland Reliability
This project includes the installation of an approximately 180-mile double circuit 345kV transmission line from the existing Iron Range Substation to the existing Benton Country Substation, to the new Big Oaks substation.