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EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the AES Corporation’s Registration Statements (Form S-8 No.’s 333-179701, 333-82306, 333-115028, 333-135128, and 333-156242) pertaining to the Employees’ Thrift Plan of Indianapolis Power & Light Company of our report dated June 25, 2026, with respect to the financial statements and schedule of the Employees’ Thrift Plan of Indianapolis Power & Light Company included in this Annual Report (Form 11-K) for the year ended December 31, 2025.

/s/ Ernst & Young LLP

Indianapolis, Indiana

June 25, 2026