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
10,074 MW
100.0% of 10,074 MW installed
Fleet Availability
100.0%
nuclear generating ÷ installed
Units in Outage
0
at a full outage (0% power)
Units Derated
0
running below 98% power
Region IV
West / South-Central
Arlington, TX
100.0%
availability
10,074 MW
online of 10,074
0 MW
offline
8 units:
8 at power
Top markets
ERCOT 4,986 MW
SRP 3,937 MW
BPA 1,151 MW
Region Summary
| Region | Coverage | Units | Capacity | Online | Availability | MW Offline | Offline / Derated | Top markets |
|---|---|---|---|---|---|---|---|---|
| Region IV | West / South-Central | 8 | 10,074 | 10,074 | 100.0% | — | 0 / 0 | ERCOTSRPBPA |
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 IV · West / South-Central (8 units, 10,074 MW online) | ||||||
| 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 |
| 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 |
| Columbia Generating Station | BPA | WA | 100.0% | 1,151 | — | At power |