ABOUT US
    What we do
Key facts
Leadership
Contributing owners
Service area
System planning
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Annual Report
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In the Community
 
KEY FACTS  
 
Background
  • Began operations Jan. 1, 2001, as the first multi-state transmission-only utility
  • Companies that transferred transmission assets or cash to ATC now are equity owners
  • A transmission-owning member of the Midwest Independent Transmission System Operator
  • Regulated by the Federal Energy Regulatory Commission for rates and tariffs
  • Regulated by states for siting transmission infrastructure
  • Headquartered in Pewaukee, Wis., with approximately 500 employees working in Wisconsin, Michigan and Washington, DC

Assets
  • 9,350 circuit miles of transmission line
  • 500 substations (wholly or jointly owned)
  • $2.2 billion in total assets

Operations
  • Two system operations centers
  • Peak demand: 69,459 GWH
  • Service area includes portion of Wisconsin, Michigan, Minnesota and Illinois
  • Peak electric demand is projected to grow at just under 2 percent; up to 8 percent in some areas; no growth in other areas

 

Construction Program

  • $1.7 billion investment since 2001
  • Upgraded more than 1,200 miles of lines
  • Built 30 new lines (327 miles); 12 new substations
  • Improved 103 substations
  • Supported 828 megawatts of new electric usage
  • Connected 2,768 megawatts of new generation at 13 sites
  • Increased import capacity by 1,000 megawatts
  • Approximately $2.8 billion investment planned over the next 10 years based on our 10-Year Transmission System Assessment



 
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