Ameren Missouri files 2026 integrated resource plan with Missouri PSC

• Ameren Missouri filed a non-binding 2026 integrated resource plan with the Missouri Public Service Commission on Sept. 28, 2026.
• Preferred plan targets major additions of natural gas generation, renewables, battery storage, nuclear capacity. Coal retirements shift later in some cases.
• Plan assumes demand growth of about 2.9-3.9 GW by 2030, rising to 6-9 GW by 2045.
• Utility expects to seek Nuclear Regulatory Commission approval to extend Callaway’s operating license beyond its 2044 expiration.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Ameren Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001104659-26-111420), on September 28, 2026, and is solely responsible for the information contained therein.