Duke Energy Ohio, Kentucky join PJM Interconnection, effective midnight Jan. 1

VALLEY FORGE, Pennsylvania , January 4, 2012 (press release) – Regional Operations Strengthen Reliability, Coordination and Competition

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.

 
PJM

1993
(PJM Interconnection Association formed)

 
 

PJM

as of May 31, 2011

 
 
 

PJM

with ATSI & CPP

 
 
 

PJM

with Duke OH & KY

 
 

Key Statistics

 
 

Millions of people served

22

54

58

60.1

All-time peak demand

46,429

144,644

158,448

163,848

Generating capacity in megawatts

55,575

167,362

180,400

185,600

Miles of transmission lines

6,821

56,750

61,200

62,591

Square miles of territory

48,700

168,500

211,000

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.

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