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GRI 2.7

2.7 - Markets served (including geographic breakdown, sectors served, and types of customers/beneficiaries).

AEP ranks among the nation's largest generators of electricity, owning nearly 38,000 megawatts of generating capacity in the United States. AEP also owns the nation's largest electricity transmission system, a nearly 39,000-mile network that includes more 765 kilovolt extra-high voltage transmission lines than all other U.S. transmission systems combined. AEP's transmission system directly or indirectly serves about 10 percent of the electricity demand in the Eastern Interconnection, the interconnected transmission system that covers 38 eastern and central U.S. states and eastern Canada, and approximately 11 percent of the electricity demand in ERCOT, the transmission system that covers much of Texas.

Regional Utility Divisions Electric Utility Subsidiaries # of Employees Headquarters Total Customers (12/31/06) Residential Commercial Industrial Other
AEP Ohio Columbus Southern Power
Ohio Power
Wheeling Power
1,540 Gahanna, OH 1,491,533 1,305,421 171,906 11,157 3,079
AEP Texas Texas Central Cos.
Texas North Cos.
1,162 Corpus Christi, TX 849,927 717,163 132,673 91  
Appalachian Power Appalachian Power
Kingsport Power
4,279 Charleston, WV 1,000,000 863,000 126,000 4,000 7,000
Indiana Michigan Power Indiana Michigan Power 2,647 Fort Wayne, IN 580,878 507,878 66,000 5,000 2,000
Kentucky Power Kentucky Power 447 Frankfort, KY 175,000 145,000 29,000 1,000 4,000
Public Service Company of Oklahoma Public Service Company of Oklahoma 1,712 Tulsa, OK 527,000 453,000 60,000 7,000 7,000
Southwestern Electric Power Company Southwestern Electric Power Company 1,651 Shreveport, LA 467,000 398,500 61,000 7,000 500

More information on each of AEP's regulated utility operations.

In the reporting period, AEP jointly owned a number of power plants with non-affiliated companies, in addition to the company’s own fleet of power plants, which is listed in 2.8.   The jointly owned facilities are:

AEP Capacity Percent of Ownership
W.C. Beckjord Generating Station, Unit 6 53 MW 12.5%
Conesville Generating Station, Unit 4 339 MW 43.5%
J.M. Stuart Generating Station 608 MW 26.0%
Wm. H. Zimmer Generating Station 330 MW 25.4%
Dolet Hills Generating Station, Unit 1 262 MW 40.2%
Flint Creek Generating Station, Unit 1 264 MW 50.0%
Pirkey Generating Station, Unit 1 580 MW 85.9%
Oklaunion Generating Station, Unit 1 485 MW 70.3%
Turk Generating Plant 600 MW 73.33%
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