NukeGryd
Fleet by NRC Region · updated daily

Regions

The U.S. nuclear fleet across the NRC's four regulatory regions. As of Sep 15, 2026 · Updated every morning from the NRC Daily Power Reactor Status Report.
Online Now
22,323 MW
90.1% of 24,784 MW installed
Fleet Availability
90.1%
nuclear generating ÷ installed
Units in Outage
2
at a full outage (0% power)
Units Derated
2
running below 98% power
Region II

Southeast

Atlanta, GA
87.6%
availability
16,553 MW
online of 18,899
2,345 MW
offline
19 units: 16 at power 1 derated 2 in outage
Top markets
Southern 8,080 MW Duke Carolinas 7,226 MW Duke Progress 3,593 MW
Region IV

West / South-Central

Arlington, TX
98.0%
availability
5,769 MW
online of 5,885
116 MW
offline
5 units: 4 at power 1 derated
Top markets
SRP 3,937 MW SPP 1,948 MW

Region Summary

RegionCoverageUnitsCapacity OnlineAvailability MW OfflineOffline / DeratedTop markets
Region II Southeast 19 18,899 16,553 87.6% 2,345 2 / 1 SouthernDuke CarolinasDuke Progress
Region IV West / South-Central 5 5,885 5,769 98.0% 116 0 / 1 SRPSPP
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 II · Southeast (19 units, 16,553 MW online)
McGuire 1 Duke Carolinas NC 0.0% 1,158 1,158 Outage
Vogtle 2 Southern GA 0.0% 1,152 1,152 Outage
Hatch 2 Southern GA 96.0% 883 35 Derated
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
Vogtle 3 Southern GA 100.0% 1,114 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 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
Region IV · West / South-Central (5 units, 5,769 MW online)
Cooper SPP NE 85.0% 772 116 Derated
Palo Verde 2 SRP AZ 100.0% 1,314 At power
Palo Verde 3 SRP AZ 100.0% 1,312 At power
Palo Verde 1 SRP AZ 100.0% 1,311 At power
Wolf Creek 1 SPP KS 100.0% 1,177 At power

Ontario (IESO) separate fleet

Ontario detail
MW Offline
3,632 MW
29.9% of the Ontario fleet
Units Offline
4 of 16
Bruce, Darlington, Pickering
Delivering
8,528 MW
of 12,160 MW installed
Resolution
1 hour
vs. once-daily for the U.S. fleet

Ontario is not an NRC region, so it sits outside the table above. Ontario is reported as a separate fleet and is never added into the U.S. national figures above. IESO grid-operator market data (MW delivered), not NRC percent-power.