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Spring 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.

Historical Data Archive

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Gantt Chart Timeline

Actual
Unscheduled
Utility Schedule
Predicted Extension

Detailed Schedule

Unit Type Start Date End Date Scheduled Duration Predicted Extension Context
Hatch 1
Sched: Feb 8 (27d)
Actual Jan 17, 2026 Feb 28, 2026 43 days +12 days
D.C. Cook 2 Unscheduled Jan 18, 2026 Jan 20, 2026 3 days - -
Summer Unscheduled Jan 31, 2026 Feb 7, 2026 8 days - -
Turkey Point 3
Sched: Mar 7 (28d)
Actual Feb 4, 2026 Ongoing 50 days+ +5 days
LaSalle 1
Sched: Feb 9 (16d)
Actual Feb 9, 2026 Feb 27, 2026 19 days +2 days -
Grand Gulf 1
Sched: Feb 26 (21d)
Actual Feb 14, 2026 Ongoing 40 days+ +7 days
Calvert Cliffs 1
Sched: Feb 16 (27d)
Actual Feb 16, 2026 Mar 13, 2026 26 days - -
Browns Ferry 3
Sched: Feb 20 (31d)
Actual Feb 21, 2026 Ongoing 33 days+ +5 days -
Monticello Unscheduled Feb 21, 2026 Ongoing 33 days+ -
Vogtle 1
Sched: Feb 21 (44d)
Actual Feb 22, 2026 Ongoing 32 days+ +3 days -
Hope Creek 1 Unscheduled Feb 23, 2026 Mar 6, 2026 12 days - -
Brunswick 1
Sched: Feb 28 (27d)
Actual Feb 26, 2026 Ongoing 28 days+ +2 days -
Summer
Sched: Feb 27 (31d)
Actual Feb 28, 2026 Ongoing 26 days+ +10 days -
Davis-Besse
Sched: Feb 28 (25d)
Actual Mar 1, 2026 Ongoing 25 days+ +5 days -
Byron 1
Sched: Mar 2 (31d)
Actual Mar 2, 2026 Ongoing 24 days+ - -
Nine Mile Point 2
Sched: Mar 7 (23d)
Actual Mar 9, 2026 Ongoing 17 days+ +3 days -
Arkansas Nuclear 2
Sched: Mar 7 (30d)
Actual Mar 16, 2026 Ongoing 10 days+ +5 days -
Point Beach 2
Sched: Mar 7 (26d)
Actual Mar 16, 2026 Ongoing 10 days+ +1 days -
Palo Verde 2
Sched: Mar 28 (35d)
Unscheduled Mar 20, 2026 Ongoing 6 days+ +4 days -
Fermi 2
Sched: Mar 21 (41d)
Actual Mar 23, 2026 Ongoing 3 days+ +11 days -
McGuire 2
Sched: Mar 21 (24d)
Unscheduled Mar 23, 2026 Ongoing 3 days+ - -
South Texas 1
Sched: Mar 20 (32d)
Actual Mar 23, 2026 Ongoing 3 days+ +1 days -
Susquehanna 1
Sched: Mar 23 (46d)
Actual Mar 23, 2026 Ongoing 3 days+ +4 days -