Duke Energy Ohio, Kentucky link into PJM

Valley Forge, Pa. Jan. 3, 2012. At midnight Eastern Time, Jan. 1, PJM Interconnection successfully assumed operational control of the transmission systems of Duke Energy Ohio, Inc. and Duke Energy Kentucky, Inc.,  both subsidiaries of Duke Energy Corporation, and began administering open, competitive wholesale electricity markets in those areas.


With the integrations, PJM’s all-time peak demand would have been 163,848 megawatts (MW). PJM now includes 185,600 MW of generating capacity and more than 62,000 miles of transmission lines. The generators in PJM can produce more electricity than Canada and Mexico combined.


Statistics for PJM with the addition of Duke Energy Ohio and Kentucky are in the table below.


Key Statistics               PJM 1993    PJM 2011    PJM with Duke OH & KY

Millions of people served     22          54          60.1

All-time peak demand          46,429      144,644     163,848

Generating Capacity (MW)      55,575      167,362     185,600

Miles of transmission lines   6,821       56,750      62,591

Sq. miles of territory        48,700      168,500     214,000


  PJM Interconnection, founded in 1927, ensures the reliability of the high-voltage electric power system serving 60 million people in all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia. PJM coordinates and directs the operation of the region’s transmission grid, which includes 62,000 miles of transmission lines; administers a competitive wholesale electricity market; and plans regional transmission expansion improvements to maintain grid reliability and relieve congestion. Visit PJM at www.pjm.com.



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