Comanche Peak 1 begins Fall 2026 refueling outage

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Comanche Peak 1, Glen Rose, Texas.

Comanche Peak 1 began a routine refueling outage on Oct 19, 2026, starting 1 day later than the scheduled Oct 18, 2026 date. The published schedule anticipates a duration of 32 days for the fall outage. Going into this refuel, the unit had gone about 13 months without an unscheduled outage and had run about 95% of its typical 549-day operating cycle.

GLEN ROSE, TX. Refueling activities began at Comanche Peak 1 on Oct 19, 2026. The published schedule called for a start on Oct 18, 2026; actual is 1 day later than planned. Planned outage length is 32 days (back to service around Nov 19, 2026).

Going into the refueling, the unit had run for about 13 months without an unscheduled outage. NukeWorker's start-date projection scores 100% accuracy for this unit.

Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 80.8% (18 units currently refueling), below the 81.8% baseline for this month over the past five years. At the same site, Comanche Peak 2 is running at full power. Farley 2 and Waterford 3 also began refueling outages within the past week. With the unit offline for refueling, that takes about 967,000 homes' worth of generation off the grid.

Comanche Peak 1 is a 1,209-MW Westinghouse 4-loop PWR operated by Vistra (commercial operation since 1990). The utility operates both units at this site and 4 more at 3 other U.S. plants. Ownership history: Luminant (Energy Future Holdings) took it over in an October 2007 buyout of TXU, and Vistra Energy took it over in Luminant's October 2016 spin-off. Its operating license runs through 2050 (renewed in 2024). The unit ran at a 92.4% capacity factor in 2025, a solid year of operation.

Heading to Glen Rose, TX for outage work? RSCS / Allied Power holds the radiation protection staffing contract here. RSCS / Allied Power's Fall 2026 outage list includes this outage, with RP tech and decon positions. Current per-diem averages $113/night lodging plus $68/day meals (total $181/day), and Unemployment Benefits are $605 weekly. Texas has no state income tax. NukeWorker lists 1 open job at Comanche Peak and 46 more across Texas.

View Comanche Peak 1's ratings, history, projections, and current status on NukeWorker.

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Sources: NRC Daily Reactor Power Status reports, validated outage schedules, and NukeWorker's projections.