LionTransmission Line Project


AEP Texas representatives plan power grid upgrades to improve electric reliability for customers in San Juan and Hildalgo County. The Lion Transmission Line Project involves building a new 138-kilovolt (kV) transmission line and a new electrical substation to strengthen the local transmission system.

Project Updates

October 2022 - AEP Texas representatives hosted an open house on Thursday, September 29 from 2-7 p.m. at Cambria Hotel McAllen Convention Center located at 701 S Ware Road in McAllen. During these hours, attendees had the opportunity to hear from the AEP Texas project team about the project including information about project plans, the PUC regulatory approval process, the project need and benefits and the routing analysis process.

Company representatives plan to file a Certificate of Convenience and Necessity (CCN) with the Public Utility Commission of Texas (PUC) following a review of public input on route link development and additional route analysis. Project officials expect to file a CCN application by early 2023.


Project Timeline



Typical Structure Height: Approximately 80-110 feet
Typical Distance Between Structures: Approximately 600-700 feet
Typical ROW Width: Approximately 100 feet

*Exact structure, height and right-of-way requirements may vary


Virtual Open House Project Fact Sheet Project Map Access Roads Field Activities

AEP Texas serves more than 900,000 electric consumers in the deregulated Texas marketplace.

Adriana Knight

Project Outreach Specialist

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