The Oklahoma Corporation Commission (OCC) will begin a final proceeding today that will weigh heavily on whether American Electric Power (AEP) can obtain regulatory approval for its landmark 2GW Wind Catcher Energy Connection project.

Three commissioners will weigh the merits of a recommendation by an OCC administrative law judge that they deny a preapproval request by AEP subsidiary Public Service Company of Oklahoma (PSO) to fully recover its anticipated $1.36bn