American Transmission Co.
owns and operates the high-voltage electric transmission system in portions of Wisconsin, Michigan, Minnesota and Illinois, that provide the pathway for power into communities.

2009 Annual Report

Entering our 10th year, we renew our mission to keep the lights on and to mature into the premier transmission company.

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10-Year Plan

ATC has identified an

estimated $2.5 billion in work needed over the next 10 years to ensure that the transmission grid can reliably meet the electricity needs of people and businesses in communities throughout most of Wisconsin and Michigan’s Upper Peninsula. For more in-depth information go to: www.atc10yearplan.com

Renewable Energy

Power lines bring renewables into communities.

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Learn More About Wind Power

Connecting To The Grid

ATC’s generation, load, and transmission interconnection guides are intended to provide customers with guidance on ATC’s process and requirements for interconnecting new or modified facilities to ATC’s system.  Read more...

Supplier Information

CLICK button if you wish provide your products and/or services to ATC.

 
NEWS & INFO
ATC beginning construction on Milton power line
ATC applies for permission to improve transmission system in the Sparta-Tomah area
ATC announces plans for 150-mile,
345-kV transmission line in western Wisconsin

ATC and SMART Study co-sponsors release Phase One study results for transporting renewable energy across Upper Midwest

Fitchburg – Verona Electric System Upgrade Project Complete

ATC wins environmental stewardship award

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ATC is a Green Tier company, selected by the Wisconsin DNR for demonstrating superior environmental performance and continual improvement.
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