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ATC files application with Public Service Commission of Wisconsin for new southeast Wisconsin transmission line

Project will strengthen the electric system in southern Walworth and western Kenosha counties

PEWAUKEE, Wis. – Following more than two years of public outreach with local residents, American Transmission Co. today filed an application with the Public Service Commission of Wisconsin seeking approval for the Spring Valley-North Lake Geneva Transmission Line Project.

The project includes the construction of a new 138,000-volt transmission line from the North Lake Geneva Substation in southern Walworth County to the Spring Valley Substation in western Kenosha County. ATC’s preferred route is approximately 25 miles and runs primarily along Highway 50. This option also includes construction of a new substation, called Balsam Substation, on an ATC-owned parcel along Highway 50 in the Town of Wheatland. A new 69-kV transmission line along County Highway O would connect the new substation to the existing Twin Lakes Substation in Twin Lakes. The alternate route is longer at approximately 34 miles and it follows a more southerly route from the North Lake Geneva Substation through Bloomfield and Twin Lakes, veering north along County Highway O, then west along County Highway K before tracking south to connect with the Spring Valley Substation.

“Additional electricity is needed in this area to ensure electric system reliability, especially since the population in the region is increasing,” said Doug Berton, ATC project manager. “In addition, when other lines in the region need to be taken out of service for maintenance, or there is an unplanned outage, this project would provide redundancy to help ensure that the lights stay on.”

The PSC will conduct a comprehensive review of ATC’s application, including the two proposed route options. The PSC’s regulatory review process includes conducting technical and public hearings that likely will be held in fall 2015, with a final decision expected in 2016. The PSC will notify local residents and businesses of the dates and times of the hearings, which provide the public an opportunity to make their concerns known to the decision makers.

The project is estimated to cost $71 million to $91 million. If the project is approved, construction would begin in 2017 to meet an in-service date of 2019. Additional information, including a copy of the application, can be found on the PSC’s website under Docket No. 137-CE-167.

Note to editors: A map of the project can be found here and additional information can be found at:

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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 $3.8 billion to improve the adequacy and reliability of its infrastructure. ATC now has $4 billion in assets, including more than 9,540 miles of transmission lines and 548 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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