Northeastern Wisconsin and the Upper Peninsula of Michigan are served electrically by 345- and 138-kilovolt transmission lines that are some of the most constrained in the ATC system. These constraints limit ATC's ability to move power in and out of the Upper Peninsula, and cause overloading on other parts of the electric system. To address the reliability problems, ATC is proposing a new 50-mile transmission line from the Morgan Substation south of Oconto Falls to a new substation - called Werner West - in the New London area.