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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15,145 MW
98.6% of 15,367 MW installed
Fleet Availability
98.6%
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
98.6%
availability
7,143 MW
online of 7,242
99 MW
offline
8 units:
7 at power
1 derated
Top markets
FPL 3,649 MW
Duke Progress 3,593 MW
Region IV
West / South-Central
Arlington, TX
98.5%
availability
8,002 MW
online of 8,125
123 MW
offline
7 units:
6 at power
1 derated
Top markets
SRP 3,937 MW
CAISO 2,240 MW
SPP 1,948 MW
Region Summary
| Region | Coverage | Units | Capacity | Online | Availability | MW Offline | Offline / Derated | Top markets |
|---|---|---|---|---|---|---|---|---|
| Region II | Southeast | 8 | 7,242 | 7,143 | 98.6% | 99 | 0 / 1 | FPLDuke Progress |
| Region IV | West / South-Central | 7 | 8,125 | 8,002 | 98.5% | 123 | 0 / 1 | SRPCAISOSPP |
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, 7,143 MW online) | ||||||
| Saint Lucie 2 | FPL | FL | 90.0% | 987 | 99 | Derated |
| Saint Lucie 1 | FPL | FL | 100.0% | 981 | — | 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 (7 units, 8,002 MW online) | ||||||
| Cooper | SPP | NE | 84.0% | 772 | 123 | 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 |
| Diablo Canyon 1 | CAISO | CA | 100.0% | 1,122 | — | At power |
| Diablo Canyon 2 | CAISO | CA | 100.0% | 1,118 | — | At power |