American Transmission Co. is a Wisconsin-based company that owns and operates the high-voltage electric transmission system that powers communities in portions of the Upper Midwest.
electric transmission projects
What’s Current
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American Transmission Co. updates 10-Year Transmission System Assessment
Posted on October 15, 2020 -
American Transmission Co. begins electric cable removal in Straits of Mackinac for upcoming replacement project
Posted on August 20, 2020
P.O. Box 47, Waukesha, WI 53187-0047 | (866) 899-3204
© 2020 American Transmission Co. All Rights Reserved.
Recent Tweets
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As the operator of the area electric #transmission grid, we're committed to connecting communities with a… twitter.com/i/web/status/1…
ATC is #PoweringThruTogether by supporting local organizations and causes that are lending a hand to those in need… twitter.com/i/web/status/1…
As COVID-19 cases continue to spike in #WI, ensuring the safety & well-being of our workers and communities remains… twitter.com/i/web/status/1…
We are proud to be headquartered in #Waukesha, Wis. and happy to donate $1,000 to the Waukesha County Land Conserva… twitter.com/i/web/status/1…