Ameren Missouri's 1,300-megawatt (MW), nuclear-fired Callaway 01 unit is offline due to a reactor trip caused by a mechanical equipment issue at its Callaway Energy Center in Missouri. The cause is under investigation.
Site-wide Scheduled Maintenance for April 12, 2025, between 9 A.M. - 9 P.M. CST. During this time, all services will be unavailable periodically throughout the scheduled maintenance window.
