Quad Cities 2 offline in extended unscheduled outage

[News Wire]

CORDOVA, IL — An unscheduled outage at Quad Cities 2 began on May 9, 2026. The NRC has not yet issued an event notification for this trip; this post will be updated if one is filed. This has been classified as an extended forced outage based on its duration.

This is the first unscheduled outage of 2026 for the unit. Prior to this trip, the unit had run for more than 2 years without an unscheduled outage.

Based on the unit's history and similar reactor types, projected total duration is about 13 days. NukeWorker's predictive model scores 94% on forced-outage duration accuracy for this unit, with past calls usually landing within a day.

Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 91.3% (5 currently in refueling), above the 87.0% baseline for this month over the past five years. At the same site, Quad Cities 1 is running at full power. Hatch 2 also had an unscheduled outage within the past week.

Quad Cities 2 is a 911-MW General Electric BWR/3 operated by Constellation Nuclear (commercial operation since 1973). At full power, it supplies enough electricity for roughly 729,000 homes. The utility operates 20 other U.S. nuclear units. Its operating license runs through 2032 (renewed in 2004).

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View Quad Cities 2's ratings, history, predictions, and current status on NukeWorker. This thread will be updated when the unit returns to service.

Want the full picture? Subscribe to the NukeWorker outage schedule for every current and upcoming U.S. nuclear outage: refueling, forced, and the 18-month rolling forecast.

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

[News Wire]

Quad Cities 2 returned to service on May 16 after an eight-day forced extended outage, finishing five days ahead of the initial 13-day projection. This event marks the first forced outage for the unit in 2026. The NukeWorker projection accuracy for this unit remains at 94 percent within tolerance across seven total forced outages.

Quad Cities 2 returned to service on May 16, 2026 after a 8-day unscheduled outage that began on May 9, 2026. A multi-day outage in this range typically points to a single equipment fix rather than a major component issue.

NukeWorker's predictive model projected this at about 13 days at outage start; actual was 5 days shorter.

The 8-day outage removed roughly 161,000 MWh from the grid, worth approximately $6 million at recent wholesale prices, equivalent to a year's electricity for about 15,000 homes.

View Quad Cities 2's ratings, history, predictions, and current status on NukeWorker.

Want the full picture? Subscribe to the NukeWorker outage schedule for every current and upcoming U.S. nuclear outage: refueling, forced, and the 18-month rolling forecast.

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