Comanche Peak 2 completes Spring refueling outage in 25 days

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Comanche Peak 2 completed its spring refueling outage three days ahead of the 28-day schedule. The unit finished the maintenance period in 25 days, which is 4.6 days faster than the average duration of the 18 previous refuels for this reactor.

This 25-day duration ranks as the 13th-longest among the 19 tracked refuels for the unit. The reactor entered this outage with an unscheduled-outage-free streak of 229 days and recorded a 98.9 percent capacity factor during the 2025 cycle. Luminant Generation Company operates this 1,195-MW Westinghouse 4-loop PWR and one other U.S. nuclear unit. Across the industry, 94 units are operating at a 94 percent capacity factor, with four other units currently in outages.

25 days outage · 3 days ahead of schedule · 1,195 MW back online

Comanche Peak 2 resumed power production on May 28, 2026 after a 25-day Spring 2026 refueling outage that began May 4, 2026.

The published schedule had it at 28 days (Apr 18, 2026 to May 16, 2026), so the actual ran 3 days shorter than planned.

The 25-day outage removed roughly 660,000 MWh from the grid, worth approximately $26 million at recent wholesale prices, equivalent to a year's electricity for about 61,000 homes.

Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 94.0% (2 currently in refueling, 1 in unscheduled outages), above 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, Palisades, Surry 2, and Saint Lucie 2 also completed refueling outages 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 (renewed in 2024). The unit ran at a 98.9% capacity factor in 2025, among the unit's strongest cycles.

View Comanche Peak 2's ratings, history, projections, and current status on NukeWorker.

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