• Began operations Jan. 1, 2001, as the first multi-state electric transmission-only utility
• Companies that transferred transmission assets or cash to ATC now are equity owners
• A transmission-owning member of the Midwest ISO, Midwest Reliability Organization and Reliability First Corporation.
• 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

• 9,350 circuit miles of transmission line
• 500 substations (wholly or jointly owned)
• $2.5 billion in total assets

• 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

• $2.2 billion investment since 2001
• Upgraded more than 1,360 miles of lines
• Built 351 miles of new lines and 15 new substations
• Improved 114 substations
• Supported 828 megawatts of new electric usage
• Connected 2,768 megawatts of new generation at 13 sites
• Reduced energy losses by more than 16 million megawatt hours
• Approximately $2.7 billion investment planned over the next 10 years based on our 2008 Ten Year Transmission System Assessment