Ameren Missouri has received approval from the Missouri Public Service Commission to construct the Big Hollow Energy Center in Jefferson County. This facility will be the state’s first hybrid site, combining an 800 MW natural gas plant with a 400 MW lithium-ion battery storage system. Expected to be operational by 2028, the project aims to enhance energy reliability, support peak demand, and contribute to the company’s long-term goal of adding 1,800 MW of battery storage by 2042.
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Inside Missouri’s first gas-plus-battery plant built to bolster power reliability
Ameren Missouri has received approval from the Missouri Public Service Commission to construct the Big Hollow Energy Center in Jefferson County. This facility will be the state’s first hybrid site, combining an 800 MW natural gas plant with a 400 MW lithium-ion battery storage system. Expected to be operational by 2028, the project aims to enhance energy reliability, support peak demand, and contribute to the company’s long-term goal of adding 1,800 MW of battery storage by 2042.