Fleet by NRC Region · updated daily
Regions
The U.S. nuclear fleet across the NRC's four regulatory regions. As of Sep 16, 2026 · Updated every morning from the NRC Daily Power Reactor Status Report.
Online Now
9,965 MW
98.0% of 10,167 MW installed
Fleet Availability
98.0%
nuclear generating ÷ installed
Units in Outage
0
at a full outage (0% power)
Units Derated
2
running below 98% power
Region II
Southeast
Atlanta, GA
99.0%
availability
8,140 MW
online of 8,219
79 MW
offline
9 units:
8 at power
1 derated
Top markets
FPL 3,649 MW
Duke Progress 3,593 MW
Dominion SC 977 MW
Region IV
West / South-Central
Arlington, TX
93.7%
availability
1,825 MW
online of 1,948
123 MW
offline
2 units:
1 at power
1 derated
Top markets
SPP 1,948 MW
Region Summary
| Region | Coverage | Units | Capacity | Online | Availability | MW Offline | Offline / Derated | Top markets |
|---|---|---|---|---|---|---|---|---|
| Region II | Southeast | 9 | 8,219 | 8,140 | 99.0% | 79 | 0 / 1 | FPLDuke ProgressDominion SC |
| Region IV | West / South-Central | 2 | 1,948 | 1,825 | 93.7% | 123 | 0 / 1 | SPP |
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| Unit | Market | State | Power | Capacity | MW offline | Status |
|---|---|---|---|---|---|---|
| Region II · Southeast (9 units, 8,140 MW online) | ||||||
| Saint Lucie 2 | FPL | FL | 92.0% | 987 | 79 | Derated |
| Saint Lucie 1 | FPL | FL | 100.0% | 981 | — | At power |
| Summer | Dominion SC | SC | 100.0% | 977 | — | 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 |
| Turkey Point 4 | FPL | FL | 100.0% | 844 | — | At power |
| Turkey Point 3 | FPL | FL | 100.0% | 837 | — | At power |
| Robinson 2 | Duke Progress | SC | 100.0% | 759 | — | At power |
| Region IV · West / South-Central (2 units, 1,825 MW online) | ||||||
| Cooper | SPP | NE | 84.0% | 772 | 123 | Derated |
| Wolf Creek 1 | SPP | KS | 100.0% | 1,177 | — | At power |