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FACTS & FIGURES
MidAmerican Transmission

MidAmerican Transmission builds upon the significant operational and ownership experience gained by MidAmerican through its subsidiaries’ ownership of existing electric transmission systems to provide cost-effective, reliable transmission solutions for wholesale customers.

The transmission delivery team has developed approximately $1.6 billion of transmission projects at voltages of 345 kilovolts and higher and has extensive experience in traditional utility and stand-alone transmission project development.

MidAmerican Transmission is committed to long-term ownership of transmission assets and is working to acquire transmission assets and develop transmission projects within the regulated competitive frameworks that exist in the U.S. and Canada. It has two established joint ventures with transmission assets that are operational or under construction and is engaged in various stages of joint venture development with other entities.

MidAmerican Transmission, along with subsidiaries of American Electric Power Company, indirectly owns a 50 percent interest in Electric Transmission Texas. ETT owns and operates electric transmission assets in the Electric Reliability Council of Texas.

ETT forecasts to complete a total of approximately $1.5 billion of Competitive Renewable Energy Zone projects before the end of 2013, with $207 million in-service at year-end 2012. Additionally, ETT is developing or constructing approximately $1.5 billion of transmission projects within ERCOT that were transferred from AEP subsidiaries. Of these transmission projects, a total of $672 million were in-service at year-end 2012, with the remaining projects forecast to be completed between 2013 and 2022. ETT’s transmission system included 562 line miles of transmission and 19 substations at year-end 2012.

MidAmerican Transmission indirectly owns a 25 percent interest in the Prairie Wind Transmission project in Kansas, which has received the necessary approvals from the Federal Energy Regulatory Commission and the Southwest Power Pool. Construction began in 2012. The project is expected to cost approximately $180 million, consists of approximately 108 miles of extra-high- voltage 345-kV double-circuit transmission, and is targeted to be in-service by year-end 2014. MidAmerican Transmission is partnering with Westar Energy and AEP in this venture.

In 2012, MidAmerican Transmission’s Canadian development affiliate entered into a joint venture with Renewable Energy Systems Canada Inc. in Ontario, Canada, to sponsor a competitive proposal for the province’s East-West Tie Line project.






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