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.
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22,663 MW
92.9% of 24,392 MW installed
Fleet Availability
92.9%
nuclear generating ÷ installed
Units in Outage
1
at a full outage (0% power)
Units Derated
3
running below 98% power
Region II
Southeast
Atlanta, GA
87.1%
availability
11,429 MW
online of 13,126
1,696 MW
offline
13 units:
10 at power
2 derated 1 in outage
Top markets
Southern 8,080 MW
FPL 3,649 MW
MISO 1,397 MW
Region III
Midwest
Lisle, IL
100.0%
availability
6,253 MW
online of 6,253
0 MW
offline
8 units:
8 at power
Top markets
MISO 6,253 MW
Region IV
West / South-Central
Arlington, TX
99.3%
availability
4,981 MW
online of 5,013
33 MW
offline
5 units:
4 at power
1 derated
Top markets
MISO 3,862 MW
BPA 1,151 MW
Region Summary
| Region | Coverage | Units | Capacity | Online | Availability | MW Offline | Offline / Derated | Top markets |
|---|---|---|---|---|---|---|---|---|
| Region II | Southeast | 13 | 13,126 | 11,429 | 87.1% | 1,696 | 1 / 2 | SouthernFPLMISO |
| Region III | Midwest | 8 | 6,253 | 6,253 | 100.0% | — | 0 / 0 | MISO |
| Region IV | West / South-Central | 5 | 5,013 | 4,981 | 99.3% | 33 | 0 / 1 | MISOBPA |
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 (13 units, 11,429 MW online) | ||||||
| Vogtle 2 | Southern | GA | 0.0% | 1,152 | 1,152 | Outage |
| Vogtle 3 | Southern | GA | 60.0% | 1,114 | 446 | Derated |
| Saint Lucie 2 | FPL | FL | 90.0% | 987 | 99 | Derated |
| Grand Gulf 1 | MISO | MS | 100.0% | 1,397 | — | At power |
| Vogtle 1 | Southern | GA | 100.0% | 1,150 | — | At power |
| Vogtle 4 | Southern | GA | 100.0% | 1,114 | — | At power |
| Saint Lucie 1 | FPL | FL | 100.0% | 981 | — | 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 |
| Turkey Point 4 | FPL | FL | 100.0% | 844 | — | At power |
| Turkey Point 3 | FPL | FL | 100.0% | 837 | — | At power |
| Region III · Midwest (8 units, 6,253 MW online) | ||||||
| Callaway | MISO | MO | 100.0% | 1,190 | — | At power |
| Fermi 2 | MISO | MI | 100.0% | 1,141 | — | At power |
| Clinton | MISO | IL | 100.0% | 1,079 | — | At power |
| Monticello | MISO | MN | 100.0% | 617 | — | At power |
| Point Beach 2 | MISO | WI | 100.0% | 597 | — | At power |
| Point Beach 1 | MISO | WI | 100.0% | 589 | — | At power |
| Prairie Island 1 | MISO | MN | 100.0% | 521 | — | At power |
| Prairie Island 2 | MISO | MN | 100.0% | 519 | — | At power |
| Region IV · West / South-Central (5 units, 4,981 MW online) | ||||||
| Waterford 3 | MISO | LA | 97.0% | 1,087 | 33 | Derated |
| Columbia Generating Station | BPA | WA | 100.0% | 1,151 | — | At power |
| Arkansas Nuclear 2 | MISO | AR | 100.0% | 982 | — | At power |
| River Bend 1 | MISO | LA | 100.0% | 968 | — | At power |
| Arkansas Nuclear 1 | MISO | AR | 100.0% | 826 | — | At power |