American Electric Power

American Electric Power is a company based in Columbus, Ohio. AEP ranks among the nation's largest generators of electricity. American Electric Power (AEP) is a major investor-owned electric utility in the United States of America, delivering electricity to more than five million customers in 11 states. AEP ranks among the nation's largest generators of electricity, owning nearly also owns the nation's largest electricity transmission system

AEP's utility units operate as AEP Ohio, AEP Texas, Appalachian Power (in Virginia, West Virginia, and Tennessee), Indiana Michigan Power, Kentucky Power, Public Service Company of Oklahoma, and Southwestern Electric Power Company (in Arkansas, Louisiana and east Texas). AEP's headquarters are in Columbus, Ohio.

AEP Ohio serves customers in central, southern and northwestern Ohio.
AEP Texas
Appalachian Power
Indiana Michigan Power
Kentucky Power
Public Service Company of Oklahoma (PSO)
Southwestern Electric Power Company