Ameren Missouri plans 2,100-MW West Alton combined-cycle gas plant, targets 2031 completion

Ameren Missouri filed with the Missouri Public Service Commission to build the 2,100-megawatt West Alton Energy Center, a combined-cycle natural gas plant.

Targeted for completion in 2031, pending regulatory approval, the project is intended to add 24/7 baseload generation as demand rises and older plants retire.

Planned next to the existing Sioux Energy Center, the project is expected to use existing equipment and grid connections, with the aim of limiting capital costs.

The project is expected to support more than 1,000 construction jobs over several years.