Duke Energy transmission project to deliver wind power to California, Southwest

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Charlotte, N.C., December 19, 2011 – Duke-American Transmission Co. has acquired the Zephyr Power Transmission Project and will continue the design and development of the proposed 950-mile transmission line that would deliver wind energy generated in eastern Wyoming to California and the southwestern U.S.

DATC, a joint venture of Duke Energy and American Transmission Co., acquired the Zephyr Power Transmission Project from a unit of Pathfinder Renewable Wind Energy LLC. Pathfinder is developing a wind power project on more than 100,000 acres near Chugwater, Wyo., and has committed to use at least 2,100 MW of the Zephyr project’s 3,000-MW capacity.

The Zephyr project would originate in Chugwater and terminate in the Eldorado Valley just south of Las Vegas, Nev. The 500-kV high-voltage direct current project, estimated at about $3.5 billion, will include an AC/DC converter station at each terminus.

California may be the largest market for renewable power in the country with a renewable energy portfolio standard of 33 percent. DATC’s Zephyr project creates a highly efficient and strategic connection between the wind-rich areas of Wyoming and electricity load centers in California and the southwestern U.S.

While wind generation and transmission development are being pursued separately, Pathfinder and DATC have agreed to work together to increase the viability of the integrated projects.

In 2012, DATC will continue its studies, begin environmental analysis, and design routing and siting before seeking regulatory approvals. If approved, the transmission line would be in service in 2020.

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The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at Jennifer.Runyon@ClarionEvents.com.

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