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Background
- Formed in 2001 as the nation’s 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 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 and Michigan.
Assets
- 9,440 circuit miles of transmission line
- 519 substations (wholly or jointly owned)
- $3.1 billion in total assets
Operations
Construction Program
- $2.7 billion investment in the transmission system since 2001
- Upgraded more than 1,700 miles of lines
- Built 540 miles of new lines
- Improved 140 substations
- Supported 1,100 megawatts of new peak electric usage
- Connected 5,711 megawatts of new generation at 21 sites
- Reduced energy losses by more than 15 million megawatt hours
- $3.4 to $4.4 billion investment planned over the next 10 years based on our 2011 Ten-Year Transmission System Assessment
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