Transource Missouri powers up 180-mile, 345-kV power line

A new, 180-mile transmission project built in Missouri by Transource Missouri LLC, called the Midwest Transmission Project, was energized Dec. 15.

Transource Missouri is a subsidiary of Transource Energy, a competitive electric transmission joint venture formed in 2012 by American Electric Power (NYSE: AEP) and Great Plains Energy (NYSE: GXP).

The 345-kV Midwest Transmission Project connects Kansas City Power & Light‘s (KCP&L) Sibley Substation located near Sibley, Mo., with a new transmission substation (Mullin Creek Substation) located south of Maryville, Mo. It then extends to the Omaha Public Power District’s (OPPD) Substation 3458 located near Nebraska City, Neb. Transource Missouri built and owns approximately 135 miles of the project in Missouri and the new Mullin Creek Substation. Transource Missouri’s portion of the project cost was approximately $250 million. OPPD built and owns approximately 45 miles of the project in Nebraska.

“This project clearly demonstrates that the combined transmission experience and expertise of AEP and Great Plains Energy allows Transource to develop transmission solutions that successfully balance system requirements, project constructability and costs. This project was a Priority Project in the Southwest Power Pool region and will reduce grid congestion, increase system reliability, provide additional grid capability for future needs and enable large-scale renewable energy development in the region,” said Antonio Smyth, president, Transource Energy.

Transource Missouri built an additional, separate 31-mile, 345-kV transmission project to enhance reliability and relieve grid congestion in northwest Missouri from KCP&L’s Iatan substation to the Nashua substation near Smithville. That project was energized in April 2015.

“Transource Energy has been active in other markets, and was recently awarded two competitive transmission projects in the PJM Interconnection – a $72 million transmission upgrade project in West Virginia and a $225 million market efficiency transmission project to address congestion across the Pennsylvania and Maryland border. We continue to pursue competitive transmission opportunities in PJM, the Southwest Power Pool, Midwest ISO and other markets in order to deliver effective transmission solutions that benefit customers,” Smyth said.   

AEP owns 86.5% of Transource and Great Plains Energy owns 13.5%. Transource has offices in Columbus, Ohio and Kansas City, Mo.

Headquartered in Kansas City, Mo., Great Plains Energy is the holding company of Kansas City Power & Light and KCP&L Greater Missouri Operations Co.

American Electric Power is one of the largest electric utilities in the United States, delivering electricity and custom energy solutions to nearly 5.4 million customers in 11 states. AEP owns the nation’s largest electricity transmission system, a more than 40,000-mile network that includes more 765-kilovolt extra-high voltage transmission lines than all other U.S. transmission systems combined. AEP also operates 224,000 miles of distribution lines. AEP ranks among the nation’s largest generators of electricity, owning approximately 31,000 megawatts of generating capacity in the U.S. AEP also supplies 3,200 megawatts of renewable energy to customers.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.