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 21 min ago

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Data Archive
This timeline maps 14 reactor outages across the US fleet for Fall 2026. That includes 6 completed refueling outages, 4 unplanned outages, and 4 reactor trips. The longest ran 21 days at McGuire 1 and 6 reactors are offline right now.

Gantt Chart Timeline

Updated Sep 25, 20269/25/26 · 8:01 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 11 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 Sep 9, 2026 6 days -
McGuire 1 RFO M1R31 Sep 5, 2026 Ongoing 21 days+ -
North Anna 2 RFO 2R31 Sep 6, 2026 Ongoing 20 days+ -
Davis-Besse Unscheduled Sep 8, 2026 Sep 18, 2026 11 days -
Browns Ferry 1 RFO U1R16 Sep 12, 2026 Ongoing 14 days+ -
Vogtle 2 RFO 2R25 Sep 13, 2026 Ongoing 13 days+ -
FitzPatrick RFO RO27 Sep 14, 2026 Ongoing 12 days+ -
D.C. Cook 1 RFO U1C34 Sep 19, 2026 Ongoing 7 days+ -
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