Comanche Peak 2 starts Spring 2026 refueling outage 16 days late

[Outage Wire]

GLEN ROSE, TX — Comanche Peak 2 came offline on May 4, 2026 for refueling. The published schedule had a Apr 18, 2026 start; actual is 16 days later than planned. Planned outage length is 28 days (back to service around May 16, 2026).

Going into the refueling, the unit had run for more than 7 years without an unscheduled outage. NukeWorker's predictive model scores 99% on start-date accuracy for this unit.

Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 85.6% (9 currently in refueling, 2 in unscheduled outages), below the 87.0% baseline for this month over the past five years. At the same site, Comanche Peak 1 is running at full power. Oconee 3 also began a refueling outage within the past week.

Comanche Peak 2 is a 1,195-MW Westinghouse 4-loop PWR operated by Luminant Generation Company (commercial operation since 1993). At full power, it supplies enough electricity for roughly 956,000 homes. The utility operates 1 other U.S. nuclear unit. Its operating license runs through 2053. The unit ran at a 98.9% capacity factor in 2025, among the unit's strongest cycles.

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Sources: NRC Daily Reactor Power Status reports, utility-published outage schedules, and NukeWorker's predictive model.