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. Data refreshed 13.3h ago

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Data Archive
This timeline maps 51 reactor outages across the US fleet for Spring 2026. That includes 33 completed refueling outages, 8 unplanned outages, and 10 reactor trips. The longest ran 97 days at Turkey Point 3.

Gantt Chart Timeline

Unit
Jan
Feb
Mar
Apr
May
Jun
McGuire 1 1,158 MW
Hatch 1 876 MW
D.C. Cook 2 1,168 MW
Summer 977 MW
LaSalle 1 1,131 MW
Grand Gulf 1 1,401 MW
Browns Ferry 3 1,260 MW
Monticello 617 MW
Vogtle 1 1,150 MW
Hope Creek 1 1,172 MW
Brunswick 1 938 MW
Davis-Besse 894 MW
Byron 1 1,164 MW
Point Beach 2 603 MW
Palo Verde 2 1,314 MW
South Texas 1 1,300 MW
McGuire 2 1,158 MW
Fermi 2 1,141 MW
Susquehanna 1 1,247 MW
Quad Cities 2 911 MW
Catawba 2 1,150 MW
Seabrook 1 1,250 MW
Salem 2 1,142 MW
Ginna 581 MW
Dresden 3 895 MW
Surry 2 838 MW
Browns Ferry 1 1,256 MW
Catawba 1 1,160 MW
Saint Lucie 2 987 MW
Watts Bar 1 1,123 MW
Vogtle 3 1,117 MW
Braidwood 2 1,154 MW
Limerick 1 1,120 MW
Comanche Peak 2 1,197 MW
Oconee 3 873 MW
Hatch 2 883 MW
South Texas 2 1,280 MW
Updated Jul 17, 20267/17/26 · 5:16 AM
Actual
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 Spring 2026 averaged 30 days. The Projected Extension column is NukeWorker's estimate of how many extra days an outage may run beyond its scheduled or logged length.
Unit Type Start Date End Date Duration Projected Extension Context
McGuire 1 Scram Jan 1, 2026 Jan 2, 2026 2 days - -
Hatch 1
Sched: Feb 8 (27d) 		Actual Jan 17, 2026 Feb 28, 2026 43 days -
D.C. Cook 2 Scram Jan 18, 2026 Jan 20, 2026 3 days - -
Summer Scram Jan 31, 2026 Feb 7, 2026 8 days - -
Turkey Point 3
Sched: Mar 7 (28d) 		Actual Feb 4, 2026 May 11, 2026 97 days -
LaSalle 1
Sched: Feb 9 (16d) 		Actual Feb 9, 2026 Feb 27, 2026 19 days - -
Columbia Generating Station Scram Feb 13, 2026 Feb 16, 2026 4 days - -
Grand Gulf 1
Sched: Feb 26 (21d) 		Actual Feb 14, 2026 Mar 26, 2026 41 days -
Calvert Cliffs 1
Sched: Feb 16 (27d) 		Actual Feb 16, 2026 Mar 14, 2026 27 days - -
Monticello Unscheduled Feb 21, 2026 Apr 2, 2026 41 days -
Browns Ferry 3
Sched: Feb 20 (31d) 		Actual Feb 21, 2026 Mar 26, 2026 34 days - -
Vogtle 1
Sched: Feb 21 (44d) 		Actual Feb 22, 2026 Apr 2, 2026 40 days - -
Hope Creek 1 Scram Feb 23, 2026 Mar 7, 2026 13 days - -
Brunswick 1
Sched: Feb 28 (27d) 		Actual Feb 26, 2026 Apr 14, 2026 48 days - -
Summer
Sched: Feb 27 (31d) 		Actual Feb 28, 2026 Apr 9, 2026 41 days - -
Davis-Besse
Sched: Feb 28 (25d) 		Actual Mar 1, 2026 Mar 30, 2026 30 days - -
Byron 1
Sched: Mar 2 (31d) 		Actual Mar 2, 2026 Apr 1, 2026 31 days - -
Nine Mile Point 2
Sched: Mar 7 (23d) 		Actual Mar 9, 2026 Apr 1, 2026 24 days - -
Arkansas Nuclear 2
Sched: Mar 7 (30d) 		Actual Mar 14, 2026 Apr 30, 2026 48 days - -
Point Beach 2
Sched: Mar 7 (26d) 		Actual Mar 14, 2026 Apr 10, 2026 28 days - -
Palo Verde 2
Sched: Mar 28 (35d) 		Scram Mar 20, 2026 May 4, 2026 46 days +7 days -
South Texas 1
Sched: Mar 20 (32d) 		Actual Mar 21, 2026 Apr 22, 2026 33 days - -
McGuire 2
Sched: Mar 21 (24d) 		Actual Mar 22, 2026 Apr 18, 2026 28 days - -
Fermi 2
Sched: Mar 21 (41d) 		Actual Mar 23, 2026 May 11, 2026 50 days - -
Susquehanna 1
Sched: Mar 23 (46d) 		Actual Mar 23, 2026 May 4, 2026 43 days - -
Quad Cities 2
Sched: Mar 30 (16d) 		Actual Mar 30, 2026 Apr 23, 2026 25 days - -
Catawba 2 Unscheduled Mar 31, 2026 Apr 14, 2026 15 days - -
Seabrook 1
Sched: Apr 4 (24d) 		Actual Apr 4, 2026 May 6, 2026 33 days - -
Salem 2
Sched: Apr 4 (26d) 		Actual Apr 5, 2026 May 6, 2026 32 days - -
Beaver Valley 2
Sched: Apr 11 (30d) 		Actual Apr 5, 2026 May 3, 2026 29 days - -
Ginna
Sched: Apr 6 (21d) 		Actual Apr 6, 2026 Apr 23, 2026 18 days - -
Dresden 3 Unscheduled Apr 8, 2026 Apr 13, 2026 6 days - -
Surry 2
Sched: Apr 5 (62d) 		Actual Apr 12, 2026 Jun 7, 2026 57 days - -
Millstone 2
Sched: Apr 9 (28d) 		Actual Apr 13, 2026 May 13, 2026 31 days - -
Saint Lucie 2
Sched: Apr 4 (30d) 		Actual Apr 18, 2026 Jun 4, 2026 48 days - -
Watts Bar 1
Sched: Apr 17 (29d) 		Actual Apr 18, 2026 May 15, 2026 28 days - -
Catawba 1
Sched: Apr 18 (21d) 		Actual Apr 18, 2026 May 13, 2026 26 days - -
Browns Ferry 1 Unscheduled Apr 18, 2026 Apr 23, 2026 6 days - -
Vogtle 3
Sched: Apr 19 (36d) 		Actual Apr 19, 2026 May 16, 2026 28 days - -
Braidwood 2
Sched: Apr 20 (19d) 		Actual Apr 20, 2026 May 6, 2026 17 days - -
Hatch 1 Scram Apr 24, 2026 Apr 27, 2026 4 days - -
Limerick 1
Sched: Apr 20 (24d) 		Actual Apr 27, 2026 May 19, 2026 23 days - -
Browns Ferry 3 Unscheduled Apr 28, 2026 Apr 29, 2026 2 days - -
Comanche Peak 2
Sched: Apr 18 (28d) 		Actual May 4, 2026 May 28, 2026 25 days - -
Oconee 3
Sched: May 1 (24d) 		Actual May 6, 2026 May 28, 2026 23 days - -
Quad Cities 2 Unscheduled May 9, 2026 May 16, 2026 8 days - -
Hatch 2 Unscheduled May 11, 2026 May 15, 2026 5 days - -
Fermi 2 Scram May 19, 2026 May 21, 2026 3 days -
LaSalle 1 Unscheduled May 27, 2026 May 30, 2026 4 days - -
Millstone 2 Scram Jun 5, 2026 Jun 14, 2026 10 days - -
South Texas 2 Scram Jun 18, 2026 Jun 27, 2026 10 days - -
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