AEP / American Electric Power Company, Inc. - SEC-Einreichungen, Jahresbericht, Proxy Statement

[Signature Page to Base Forward Confirmation]

EX-10.6 Exhibit 10.6 May 13, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention:  Treasurer Telephone:  (614) 716-2576 Email:    [email protected] FROM: Morgan Stanley & Co. LLC 1585 Broadway, 6th Floor New York, NY 10036-8293 Telephone: (212) 761-4000 RE: Additional Registered Forward Transaction Dear Sirs, The purpose of this letter agreement (th

[Signature Page to Base Forward Confirmation]

EX-10.2 Exhibit 10.2 May 12, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention:  Treasurer Telephone:   (614) 716-2576 Email:    [email protected] FROM: Goldman Sachs & Co. LLC 200 West Street New York, NY 10282-2198 RE: Base Registered Forward Transaction Dear Sirs, The purpose of this letter agreement (this “Confirmation”) is to confirm the term

[Signature Page to Base Forward Confirmation]

EX-10.3 Exhibit 10.3 May 12, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention:  Treasurer Telephone:   (614) 716-2576 Email:    [email protected] FROM: Morgan Stanley & Co. LLC 1585 Broadway, 6th Floor New York, NY 10036-8293 Telephone: (212) 761-4000 RE: Base Registered Forward Transaction Dear Sirs, The purpose of this letter agreement (this “C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 12, 2026 AMERICAN ELECTRIC POW

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 12, 2026 AMERICAN ELECTRIC POWER COMPANY, INC. (Exact Name of Registrant as Specified in Its Charter) New York 1-3525 13-4922640 (State or Other Jurisdiction of Incorporation) (Com

[Signature Page to Base Forward Confirmation]

EX-10.1 Exhibit 10.1 May 12, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention: Treasurer Telephone: (614) 716-2576 Email: [email protected] FROM: Bank of America, N.A. One Bryant Park, 8th Floor New York, NY 10036 USA Attention: Strategic Equity Solutions Group Telephone: (646) 855-6770 E-mail: [email protected] RE: Base Regist

[Signature Page to Base Forward Confirmation]

EX-10.4 Exhibit 10.4 May 13, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention: Telephone: Email: Treasurer (614) 716-2576 [email protected] FROM: Bank of America, N.A. One Bryant Park, 8th Floor New York, NY 10036 USA Attention: Telephone: E-mail: Strategic Equity Solutions Group (646) 855-6770 [email protected] RE: Additional

[Signature Page to Base Forward Confirmation]

EX-10.5 Exhibit 10.5 May 13, 2026 TO: American Electric Power Company, Inc. 1 Riverside Plaza Columbus, Ohio 43215-2373 Attention:  Treasurer Telephone:   (614) 716-2576 Email:    [email protected] FROM: Goldman Sachs & Co. LLC 200 West Street New York, NY 10282-2198 RE: Additional Registered Forward Transaction Dear Sirs, The purpose of this letter agreement (this “Confirmation”) is to confirm th

AMERICAN ELECTRIC POWER COMPANY, INC. Underwriting Agreement 20,472,442 Shares of Common Stock Dated May 12, 2026

EX-1.1 Exhibit 1.1 AMERICAN ELECTRIC POWER COMPANY, INC. Underwriting Agreement 20,472,442 Shares of Common Stock Dated May 12, 2026 AGREEMENT made by and among AMERICAN ELECTRIC POWER COMPANY, INC. a corporation organized and existing under the laws of the State of New York (the “Company”), the Forward Sellers and the Underwriters, each as defined below. WITNESSETH: WHEREAS, the Company and BofA

20,472,442 Shares American Electric Power Company, Inc. Common Stock

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-291275 Prospectus Supplement (To Prospectus dated November 24, 2025) 20,472,442 Shares American Electric Power Company, Inc. Common Stock The forward sellers referred to below are offering 20,472,442 shares of our common stock, par value $6.50 per share. We expect to enter into separate forward sale agreements with each

Subject to Completion, dated May 12, 2026

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-291275 The information in this preliminary prospectus supplement is not complete and may be changed. Neither this preliminary prospectus supplement nor the accompanying prospectus is an offer to sell the securities and neither is soliciting any offer to buy the securities in any jurisdiction where the offer or sale is no

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Transition Period from to Commission Registrants; I.R.S. Employer File Number Ad

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Transition Period from to Commission Registrants; I.R.S. Employer File Number Ad

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Transition Period from to Commission Registrants; I.R.S. Employer File Number Ad

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 5, 2026 AMERICAN ELECTRIC POWE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 5, 2026 AMERICAN ELECTRIC POWER COMPANY, INC. (Exact Name of Registrant as Specified in Its Charter) New York 1-3525 13-4922640 (State or Other Jurisdiction of (Commission File Num

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Transition Period from to Commission Registrants; I.R.S. Employer File Number Ad

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

News from AEP

Exhibit 99.1 News from AEP AEP Reports First-Quarter 2026 Earnings, Reaffirms Guidance and Increases Five-Year Capital Plan •First-quarter 2026 GAAP earnings of $1.61 per share; operating earnings of $1.64 per share •AEP reaffirms full-year 2026 operating earnings guidance of $6.15 to $6.45 per share •New load additions expand to 63 gigawatts by 2030 •Cost offsets for existing customers of up to $

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BAN

Execution Copy U.S. $6,500,000,000 SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders THE LC ISSUING BANKS NAMED HEREIN and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOV

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(a) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, William J.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Quarterly Period Ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For The Transition Period from to Commission Registrants; I.R.S. Employer File Number Ad

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(b) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31(b) CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Trevor I.

U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrati

Execution Copy U.S. $1,500,000,000 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of April 30, 2026 among AMERICAN ELECTRIC POWER COMPANY, INC. as the Borrower THE LENDERS NAMED HEREIN as Initial Lenders and WELLS FARGO BANK, NATIONAL ASSOCIATION as Administrative Agent WELLS FARGO SECURITIES, LLC JPMORGAN CHASE BANK, N.A. BARCLAYS BANK PLC THE BANK OF NOVA SCOTIA MUFG BANK, LTD. CITIBANK,

Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code

Exhibit 32(a) This Certification is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.