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Fleet by NRC Region · updated daily

Regions

The U.S. nuclear fleet across the NRC's four regulatory regions. As of Sep 15, 2026 · Updated every morning from the NRC Daily Power Reactor Status Report.
Online Now
16,614 MW
87.4% of 19,000 MW installed
Fleet Availability
87.4%
nuclear generating ÷ installed
Units in Outage
2
at a full outage (0% power)
Units Derated
0
running below 98% power
Region II

Southeast

Atlanta, GA
87.4%
availability
16,614 MW
online of 19,000
2,385 MW
offline
18 units: 16 at power 2 in outage
Top markets
TVA 8,181 MW Duke Carolinas 7,226 MW Duke Progress 3,593 MW

Region Summary

RegionCoverageUnitsCapacity OnlineAvailability MW OfflineOffline / DeratedTop markets
Region II Southeast 18 19,000 16,614 87.4% 2,385 2 / 0 TVADuke CarolinasDuke Progress
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
UnitMarketStatePowerCapacityMW offlineStatus
Region II · Southeast (18 units, 16,614 MW online)
Browns Ferry 1 TVA AL 0.0% 1,227 1,227 Outage
McGuire 1 Duke Carolinas NC 0.0% 1,158 1,158 Outage
Browns Ferry 3 TVA AL 100.0% 1,227 — At power
Browns Ferry 2 TVA AL 100.0% 1,208 — At power
Catawba 1 Duke Carolinas SC 100.0% 1,160 — At power
McGuire 2 Duke Carolinas NC 100.0% 1,158 — At power
Catawba 2 Duke Carolinas SC 100.0% 1,150 — At power
Sequoyah 1 TVA TN 100.0% 1,148 — At power
Sequoyah 2 TVA TN 100.0% 1,126 — At power
Watts Bar 1 TVA TN 100.0% 1,123 — At power
Watts Bar 2 TVA TN 100.0% 1,122 — 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
Oconee 3 Duke Carolinas SC 100.0% 873 — At power
Oconee 2 Duke Carolinas SC 100.0% 865 — At power
Oconee 1 Duke Carolinas SC 100.0% 862 — At power
Robinson 2 Duke Progress SC 100.0% 759 — At power

Ontario (IESO) separate fleet

Ontario detail
MW Offline
3,632 MW
29.9% of the Ontario fleet
Units Offline
4 of 16
Bruce, Darlington, Pickering
Delivering
8,528 MW
of 12,160 MW installed
Resolution
1 hour
vs. once-daily for the U.S. fleet

Ontario is not an NRC region, so it sits outside the table above. Ontario is reported as a separate fleet and is never added into the U.S. national figures above. IESO grid-operator market data (MW delivered), not NRC percent-power.