Join us at 1:00 pm CDT Monday Oct. 16 for a virtual open house. (Please submit comments about the WWTConnection proposal by Oct. 31 here)

Western Wisconsin Transmission Connection

Proposal will add a new 345-kV transmission line connecting new and existing substations.

Project Description

The electric energy system continues to change as older traditional power plants throughout the region are shut down and more low-cost renewable energy throughout the Upper Midwest is added to the grid. Xcel Energy is proposing to add a new 345-kV transmission line that will connect to new and existing substations. This new infrastructure will enable us to deliver continued reliable, affordable, and increasingly carbon-free electricity to our customers throughout Wisconsin.

Click Here to view a recording of our virtual open house and review displays from the in-person meetings.

Our current plan is to file a Certificate of Public Convenience and Necessity with the Public Service Commission of Wisconsin in mid-2024. The Commission’s process generally takes about a year and, if approved, we would begin construction in 2027-2028.

Regional projects will work together​

The Mid-Continent Independent System Operator worked with energy companies throughout the Upper Midwest to identify new transmission projects that can be built to manage the new energy system, including several in Minnesota and Wisconsin. These projects will connect the new low-cost renewable energy with customers, ensuring that as older plants retire, customers will continue to receive the electric service they depend on when they need it.

Re-using existing infrastructure corridors key to project development

As much as possible, Xcel Energy expects to propose using existing transmission line corridors to lessen the impact of the new infrastructure on landowners and communities. In some cases, we will replace existing ‘single circuit’ transmission lines with new ‘double-circuit’ poles that include the existing and new transmission lines.