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
8,536 MW
98.9% of 8,635 MW installed
Fleet Availability
98.9%
nuclear generating ÷ installed
Units in Outage
0
at a full outage (0% power)
Units Derated
1
running below 98% power
Region II

Southeast

Atlanta, GA
97.3%
availability
3,550 MW
online of 3,649
99 MW
offline
4 units: 3 at power 1 derated
Top markets
FPL 3,649 MW
Region IV

West / South-Central

Arlington, TX
100.0%
availability
4,986 MW
online of 4,986
0 MW
offline
4 units: 4 at power
Top markets
ERCOT 4,986 MW

Region Summary

RegionCoverageUnitsCapacity OnlineAvailability MW OfflineOffline / DeratedTop markets
Region II Southeast 4 3,649 3,550 97.3% 99 0 / 1 FPL
Region IV West / South-Central 4 4,986 4,986 100.0% 0 / 0 ERCOT
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 (4 units, 3,550 MW online)
Saint Lucie 2 FPL FL 90.0% 987 99 Derated
Saint Lucie 1 FPL FL 100.0% 981 At power
Turkey Point 4 FPL FL 100.0% 844 At power
Turkey Point 3 FPL FL 100.0% 837 At power
Region IV · West / South-Central (4 units, 4,986 MW online)
South Texas 1 ERCOT TX 100.0% 1,300 At power
South Texas 2 ERCOT TX 100.0% 1,280 At power
Comanche Peak 1 ERCOT TX 100.0% 1,209 At power
Comanche Peak 2 ERCOT TX 100.0% 1,197 At power