In the event of an electricity-related emergency, such as a power outage, or in the event of problems related to the Transmission & Distribution Utility (TDU), please contact your TDU. -Oncor (DFW and West Texas): 888.313.4747 -CenterPoint (Houston and surrounding areas): 800.332.7143 -AEP Central (CP&L Area): 866.223.8508 -AEP North (WTU Area): 866.223.8508 -TNMP (Texas-New Mexico Power): 888.866.7456