NukeGryd
Fleet by NRC Region · updated daily

Regions

The U.S. nuclear fleet across the NRC's four regulatory regions. As of Sep 17, 2026 · Updated every morning from the NRC Daily Power Reactor Status Report.
Online Now
26,449 MW
86.9% of 30,432 MW installed
Fleet Availability
86.9%
nuclear generating ÷ installed
Units in Outage
3
at a full outage (0% power)
Units Derated
1
running below 98% power
Region I

Northeast

King of Prussia, PA
100.0%
availability
3,352 MW
online of 3,352
0 MW
offline
3 units: 3 at power
Top markets
ISO-NE 3,352 MW
Region II

Southeast

Atlanta, GA
85.3%
availability
23,097 MW
online of 27,080
3,983 MW
offline
26 units: 22 at power 1 derated 3 in outage
Top markets
TVA 8,181 MW Southern 8,080 MW Duke Carolinas 7,226 MW

Region Summary

RegionCoverageUnitsCapacity OnlineAvailability MW OfflineOffline / DeratedTop markets
Region I Northeast 3 3,352 3,352 100.0% 0 / 0 ISO-NE
Region II Southeast 26 27,080 23,097 85.3% 3,983 3 / 1 TVASouthernDuke Carolinas
NRC regions are administrative areas of the U.S. Nuclear Regulatory Commission, derived here from each plant's state. Availability = generating MW ÷ installed MW.

Fleet by Region

Every reporting unit, grouped by region, biggest supply loss first
UnitMarketStatePowerCapacityMW offlineStatus
Region I · Northeast (3 units, 3,352 MW online)
Seabrook 1 ISO-NE NH 100.0% 1,246 At power
Millstone 3 ISO-NE CT 100.0% 1,243 At power
Millstone 2 ISO-NE CT 100.0% 863 At power
Region II · Southeast (26 units, 23,097 MW online)
Browns Ferry 1 TVA AL 0.0% 1,227 1,227 Outage
McGuire 1 Duke Carolinas NC 0.0% 1,158 1,158 Outage
Vogtle 2 Southern GA 0.0% 1,152 1,152 Outage
Vogtle 3 Southern GA 60.0% 1,114 446 Derated
Browns Ferry 3 TVA AL 100.0% 1,227 At power
Browns Ferry 2 TVA AL 100.0% 1,208 At power
Catawba 1 Duke Carolinas SC 100.0% 1,160 At power
McGuire 2 Duke Carolinas NC 100.0% 1,158 At power
Catawba 2 Duke Carolinas SC 100.0% 1,150 At power
Vogtle 1 Southern GA 100.0% 1,150 At power
Sequoyah 1 TVA TN 100.0% 1,148 At power
Sequoyah 2 TVA TN 100.0% 1,126 At power
Watts Bar 1 TVA TN 100.0% 1,123 At power
Watts Bar 2 TVA TN 100.0% 1,122 At power
Vogtle 4 Southern GA 100.0% 1,114 At power
Harris 1 Duke Progress NC 100.0% 964 At power
Brunswick 1 Duke Progress NC 100.0% 938 At power
Brunswick 2 Duke Progress NC 100.0% 932 At power
Farley 2 Southern AL 100.0% 896 At power
Farley 1 Southern AL 100.0% 895 At power
Hatch 2 Southern GA 100.0% 883 At power
Hatch 1 Southern GA 100.0% 876 At power
Oconee 3 Duke Carolinas SC 100.0% 873 At power
Oconee 2 Duke Carolinas SC 100.0% 865 At power
Oconee 1 Duke Carolinas SC 100.0% 862 At power
Robinson 2 Duke Progress SC 100.0% 759 At power