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
9,723 MW
84.8% of 11,471 MW installed
Fleet Availability
84.8%
nuclear generating ÷ installed
Units in Outage
1
at a full outage (0% power)
Units Derated
2
running below 98% power
Region II
Southeast
Atlanta, GA
78.4%
availability
6,332 MW
online of 8,080
1,748 MW
offline
8 units:
5 at power
2 derated 1 in outage
Top markets
Southern 8,080 MW
Region IV
West / South-Central
Arlington, TX
100.0%
availability
3,391 MW
online of 3,391
0 MW
offline
3 units:
3 at power
Top markets
CAISO 2,240 MW
BPA 1,151 MW
Region Summary
| Region | Coverage | Units | Capacity | Online | Availability | MW Offline | Offline / Derated | Top markets |
|---|---|---|---|---|---|---|---|---|
| Region II | Southeast | 8 | 8,080 | 6,332 | 78.4% | 1,748 | 1 / 2 | Southern |
| Region IV | West / South-Central | 3 | 3,391 | 3,391 | 100.0% | — | 0 / 0 | CAISOBPA |
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 (8 units, 6,332 MW online) | ||||||
| Vogtle 2 | Southern | GA | 0.0% | 1,152 | 1,152 | Outage |
| Vogtle 3 | Southern | GA | 60.0% | 1,114 | 446 | Derated |
| Hatch 2 | Southern | GA | 83.0% | 883 | 150 | Derated |
| Vogtle 1 | Southern | GA | 100.0% | 1,150 | — | At power |
| Vogtle 4 | Southern | GA | 100.0% | 1,114 | — | 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 |
| Region IV · West / South-Central (3 units, 3,391 MW online) | ||||||
| Columbia Generating Station | BPA | WA | 100.0% | 1,151 | — | At power |
| Diablo Canyon 1 | CAISO | CA | 100.0% | 1,122 | — | At power |
| Diablo Canyon 2 | CAISO | CA | 100.0% | 1,118 | — | At power |