Fall 2026 Outage Data

Benchmark historical performance across a quarter-century of fleet-wide reactor data. Track long-term maintenance trends, refueling cycles, and realized generation impacts from 2000 to the present. Data refreshed 9.3h ago

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Data Archive
This timeline maps 10 reactor outages across the US fleet for Fall 2026. That includes 2 completed refueling outages, 4 unplanned outages, and 4 reactor trips. The longest ran 18 days at Monticello and 4 reactors are offline right now.

Gantt Chart Timeline

Updated Sep 9, 20269/9/26 · 5:21 AM
Refueling Outage
Unscheduled
Utility Schedule
Projected Extension
Forced Outage Projection

Detailed Schedule

The table below lists each outage with its exact start date, end date, and duration. Completed outages during Fall 2026 averaged 10 days. Refueling outages also show the plant's own cycle designator next to the type (for example 1R23); outages with no recorded designator show none.
Unit Type Start Date End Date Duration Context
Fermi 2 Scram Jul 4, 2026 Jul 11, 2026 8 days
River Bend 1 Unscheduled Aug 1, 2026 Aug 8, 2026 8 days -
Millstone 2 Scram Aug 4, 2026 Aug 5, 2026 2 days -
Monticello Unscheduled Aug 10, 2026 Aug 27, 2026 18 days -
Saint Lucie 1 Scram Aug 14, 2026 Aug 14, 2026 1 days -
Browns Ferry 2 Unscheduled Aug 27, 2026 Aug 31, 2026 5 days -
Dresden 2 Scram Sep 4, 2026 Ongoing 6 days+ -
McGuire 1 RFO Sep 5, 2026 Ongoing 5 days+ -
North Anna 2 RFO 2R31 Sep 6, 2026 Ongoing 4 days+ -
Davis-Besse Unscheduled Sep 8, 2026 Ongoing 2 days+ -
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