Ameren Corporation (AEE) — Form 8-K: Current report

Union Electric Company, doing business as Ameren Missouri, filed its 2026 integrated resource plan with the Missouri Public Service Commission on September 28, 2026. The plan outlines projected energy demand growth and preferred investments in natural gas, renewables, battery storage, and nuclear generation while retiring certain fossil fuel energy centers. Ameren Corporation and Union Electric Company jointly filed this current report on Form 8-K.