Tennessee Valley Authority

Item 1.01 Entry into a Material Definitive Agreement. On July 10, 2026, TVA entered into a Third Amended and Restated $1,000,000,000 July Maturity Credit Agreement (the “Credit Agreement”) that amends and restates the Second Amended and Restated $1,000,000,000 March Maturity Credit Agreement dated as of March 25, 2022. Toronto Dominion (Texas) LLC serves as Administrative Agent for the Credit Agreement, and The Toronto-Dominion Bank, New York Branch, serves as Letter of Credit Issuer and a Lender. Other Lenders include Bank of America, N.A., Canadian Imperial Bank of Commerce, New York Branch, Morgan Stanley Bank, N.A., The Bank of New York Mellon, and U.S. Bank National Association. TD Securities (USA) LLC serves as Lead Arranger and Bookrunner. The Credit Agreement allows TVA to access up to $1,000,000,000 in either loans or letters of credit and will expire on July 10, 2031, unless the maturity date is extended in accordance with the terms of the agreement. The interest rate on any borrowing under the Credit Agreement is variable based on market factors and the rating of TVA’s senior unsecured long-term non-credit enhanced debt. TVA is required to pay an unused facility fee on the portion of the $1,000,000,000 against which TVA has not borrowed or committed under letters of credit. This fee, along with the fee on any letter of credit, may fluctuate depending on the rating of TVA’s senior unsecured long-term non-credit enhanced debt. This description of the Credit Agreement is a summary only and is qualified in its entirety by the full and complete text of the Credit Agreement. A copy of the Credit Agreement is filed as Exhibit 10.1 hereto and is incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth in Item 1.01 above is incorporated herein by reference.