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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ATC applies for permission to improve transmission system in the Sparta-Tomah area

Regulatory filing submitted to Public Service Commission of Wisconsin

PEWAUKEE, Wis. – American Transmission Co. has filed an application with the Public Service Commission of Wisconsin to rebuild and upgrade an existing electric transmission line that connects the Monroe County Substation near Sparta and the Council Creek Substation near Tomah. ATC also will build a new substation as part of the project to improve electric system reliability.

“Rebuilding the existing line and adding an additional 161-kilovolt line will enhance electric reliability for the Sparta and Tomah communities,” said Charles Gonzales, senior local relations representative for ATC. “The new 161-kilovolt line will also provide economic savings by reducing line losses and providing access to lower-cost generation.”

Work on the 17-mile line, primarily along Highway 16, will involve replacing poles and wires on the existing 69-kV transmission line, adding a 161-kV circuit to the new steel poles and building the new Timberwolf Substation approximately one half-mile south of Interstate 90 along Highway 131.

ATC is coordinating with Dairyland Power Cooperative, Xcel Energy, Alliant Energy and Oakdale Electric Cooperative on the project. Construction of the approximately $36 million project will be completed within the area of the existing right-of-way and is expected to be in service mid-2013. For more information visit the PSC website at and enter Docket ID: 137-CE-158.

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American Transmission Co. is a Wisconsin-based company that owns and operates the electric transmission system in portions of the Upper Midwest. Formed in 2001 as the nation’s first multi-state transmission-only utility, ATC has invested to improve the adequacy and reliability of its infrastructure. ATC now has $5 billion in assets, including more than 9,890 miles of transmission lines and 568 substations. The company is a member of the MISO regional transmission organization, and provides nondiscriminatory service to all customers, supporting effective competition in energy markets without favoring any market participant. For more information, visit our website at

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