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.

2011 Annual Report

While we continued to build upon our proven record in transmission planning, construction and operations, we took the bold step of
moving our business forward into new areas of growth.

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2011 10-Year Plan

The 2011 10-Year Transmission System Assessment calls for $3.8 to $4.4 billion in new and upgraded lines and facilities through 2020.  Mandatory reliability standards, economics and public policy initiatives are playing an increasing role in planning improvements to the electric transmission grid. For more in-depth information, visit 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

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NEWS & INFO

ATC names Catherine Heigel general counsel

Process for introducing new route options for Western Milwaukee County Electric Reliability Project clarified

PSC approves ATC’s Pleasant
Prairie-Zion Energy Center Transmission Line Project
ATC to discuss preliminary route corridors for Bay Lake Project at open houses
ICC approves Pleasant Prairie-Zion Energy Center project
ATC proposes new project serving Upper Peninsula, northern and northeastern Wisconsin
  More news
ATC is a Green Tier company, selected by the Wisconsin DNR for demonstrating superior environmental performance and continual improvement.
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