Core Points - Ameren Missouri is advancing its generation investment plan by filing an application for the construction of an 800-megawatt natural gas energy center and a large-scale battery storage facility in Jefferson County, Missouri [1][3] - The Big Hollow Energy Center aims to enhance energy reliability and meet increased energy demands while ensuring grid resiliency [1][2] - The project is expected to create significant investment and job opportunities in the community, with the energy center projected to be operational by 2028 [3][4] Investment and Infrastructure - The Big Hollow Energy Center will feature a 400-megawatt lithium-ion battery installation, which can provide backup power during peak energy needs and improve overall grid reliability [4][5] - Ameren Missouri plans to accelerate its battery storage capacity to a total of 1,000 megawatts by 2030 and 1,800 megawatts by 2042 [4] - The natural gas and battery storage facilities will operate independently but will utilize existing infrastructure, reducing construction time and costs [5][6] Community Impact - The project is expected to support local economic development, including contributions to the Jefferson R-VII School District and local first responders [7] - Community leaders express strong support for the Big Hollow Energy Center, viewing it as a commitment to the future of Jefferson County [7][8] - The closure of the Rush Island Energy Center in October 2024 has been addressed by Ameren Missouri, ensuring continued partnership with the community [8]