Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on FormS-3(No. 333-282058) of Public Service Company of Oklahoma of our report dated February 12, 2026 relating to the financial statements Public Service Company of Oklahoma which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Columbus, Ohio
February 12, 2026