• 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 535 employees working in Wisconsin, Michigan and Washington, DC

• 9,400 circuit miles of transmission line
• 510 substations (wholly or jointly owned)
• $2.75 billion in total assets

• Two system operations centers
• 2009 Peak demand: 11,868 MW
• 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 1,400 miles of lines
• Built 476 miles of new lines
• Improved 130 substations
• Supported 1,100 megawatts of new electric usage
• Connected 4,293 megawatts of new generation at 18 sites
• Reduced energy losses by more than 15 million megawatt hours
• Approximately $2.5 billion investment planned over the next 10 years based on our 2009 Ten Year Transmission System Assessment