AEP Texas S-4 Registration of securities issued in business combination transactions

Exhibit 23(a)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-4of AEP Texas Inc.of our report dated February 22, 2018 relating to the financial statements, which appears in AEP Texas Inc.’s Annual Report on Form 10‑K for the year ended December 31, 2017. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Columbus, Ohio

December 3, 2018