AEP filed an application yesterday (October 18) with the Public Utilities Commission of Ohio seeking approval of a merger between its Ohio Power and Columbus Southern Power subsidiaries. AEP's application states that the merger is necessary to "efficiently prepare, file, and process" a standard service offer (SSO) application (which is expected to be filed soon) as well as a general distribution rate (which AEP proposes to file within the next few months).

The application can be found on the PUCO's website (pdf required).