As energy demand and threats of extreme weather rise, strengthening the energy grid is more important than ever ST. LOUIS, June 10, 2024 /PRNewswire/ -- Ameren Missouri, a subsidiary of Ameren Corporation (NYSE: AEE), has filed an application with the Missouri Public Service Commission to build an 800 megawatt simple- cycle natural gas energy center to serve as a reliable backup source of energy, ready to use when customers need it most. The Castle Bluff Energy Center is designed to bolster grid reliability ...