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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New transmission line placed in service in Door County

Canal-Dunn Road project boosts area reliability

DE PERE, Wis. – A new 7.7-mile transmission line between the Canal Substation in Sturgeon Bay, Wis., and the Dunn Road Substation in the Town of Sevastopol has been placed in service ahead of schedule and under budget.

“This transmission line resolves a number of issues in the peninsula,” said David Hovde, ATC local relations consultant. “The system was frequently overloaded, causing low voltages that put reliable service to customers in jeopardy. While some short-term solutions had been applied previously, the new line resolves those problems for the longer term.”

The project, which was approved by the Public Service Commission of Wisconsin in August 2010, came in about $1 million under budget and was placed in service nearly three months ahead of schedule. Final cost of the project is estimated to be $15.8 million.

ATC’s 10-Year Transmission System Assessment calls for an extension of the line from Dunn Road to Egg Harbor as a provisional project for the future. Provisional, or placeholder, projects are those for which studies are not yet complete and may not necessarily represent a preferred alternative.

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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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