American Transmission Co.

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ATC applies for permission to improve transmission system in 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 http://psc.wi.gov/ and enter Docket ID: 137-CE-158.

Note to editors: A map of the route is available at http://www.atc-projects.com/MCCC.shtml.

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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 9,860 miles of electric transmission lines and 568 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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