American Transmission Co. projects

Project website for a Wisconsin-based company that owns and operates the high-voltage electric transmission system that powers communities in portions of the Upper Midwest.

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Saukville – St. Lawrence rebuild is complete

Newly energized electric transmission line moves power; boosts reliability
ATC’s Saukville-St. Lawrence line supports output from Port Washington Generating Station

PEWAUKEE, WIS. – An existing 138-kilovolt electric transmission line between the Saukville Substation and the St. Lawrence Substation (located northeast of Slinger in the town of Hartford) was returned to service by American Transmission Co. following a year-long upgrade project.

The 19-mile line was energized last week following a year of construction activities to replace 60-year old poles and wires. “This work was done in part to address issues related to the age and condition of the facilities,” said Mary Carpenter, local relations representative. “The upgrade was also necessary to accommodate the additional output from the Port Washington Generating Station when the first of two new units is soon placed in service by We Energies.”

The need for a heaver-weight wire to carry more electricity called for the construction of stronger structures (poles). In general, the new structures were placed in the same position as the old structures. “Moving power from the generation source to where it’s needed was the goal of this project,” explained Carpenter. “This line also will strengthen reliability throughout the area.”

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Formed in 2001 as the nation’s first multi-state transmission-only utility, American Transmission Co. is a Wisconsin-based company that owns and operates 10,081 miles of electric transmission lines and 582 substations in portions of Wisconsin, Michigan, Minnesota and Illinois. Our transmission network enables the movement of electricity produced from all forms of generation resources to areas where it is needed – helping to keep the lights on, businesses running and communities strong. Visit our website at www.atcllc.com.

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