Energy Northwest today, December 7, took the 1,210-megawatt (MW) Columbia Nuclear 02 unit offline at its Columbia Nuclear Generating Station in Washington, for maintenance and vibration reduction. This event is expected to end December 12.
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.
