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.

Northeast

King of Prussia, PA

99.7%

availability

14,261 MW

online of 14,298

37 MW

offline

13 units: 12 at power 1 derated

Top markets

PJM 14,298 MW

Region II

Southeast

Atlanta, GA

81.0%

availability

16,060 MW

online of 19,828

3,768 MW

offline

19 units: 15 at power 1 derated 3 in outage

Top markets

TVA 8,181 MW Southern 8,080 MW PJM 3,567 MW

Region III

Midwest

Lisle, IL

91.5%

availability

13,560 MW

online of 14,826

1,266 MW

offline

14 units: 11 at power 2 derated 1 in outage

Top markets

PJM 14,826 MW

Region IV

West / South-Central

Arlington, TX

100.0%

availability

8,923 MW

online of 8,923

0 MW

offline

7 units: 7 at power

Top markets

ERCOT 4,986 MW SRP 3,937 MW

Region Summary

Region	Coverage	Units	Capacity	Online	Availability	MW Offline	Offline / Derated	Top markets
Region I	Northeast	13	14,298	14,261	99.7%	37	0 / 1	PJM
Region II	Southeast	19	19,828	16,060	81.0%	3,768	3 / 1	TVASouthernPJM
Region III	Midwest	14	14,826	13,560	91.5%	1,266	1 / 2	PJM
Region IV	West / South-Central	7	8,923	8,923	100.0%	—	0 / 0	ERCOTSRP

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 I · Northeast (13 units, 14,261 MW online)
Susquehanna 1	PJM	PA	97.0%	1,247	37	Derated
Peach Bottom 3	PJM	PA	100.0%	1,285	—	At power
Peach Bottom 2	PJM	PA	98.0%	1,265	—	At power
Susquehanna 2	PJM	PA	100.0%	1,247	—	At power
Hope Creek 1	PJM	NJ	100.0%	1,172	—	At power
Salem 1	PJM	NJ	100.0%	1,146	—	At power
Salem 2	PJM	NJ	100.0%	1,142	—	At power
Limerick 2	PJM	PA	100.0%	1,122	—	At power
Limerick 1	PJM	PA	100.0%	1,120	—	At power
Beaver Valley 1	PJM	PA	100.0%	907	—	At power
Beaver Valley 2	PJM	PA	100.0%	901	—	At power
Calvert Cliffs 1	PJM	MD	100.0%	884	—	At power
Calvert Cliffs 2	PJM	MD	100.0%	861	—	At power
Region II · Southeast (19 units, 16,060 MW online)
Browns Ferry 1	TVA	AL	0.0%	1,227	1,227	Outage
Vogtle 2	Southern	GA	0.0%	1,152	1,152	Outage
North Anna 2	PJM	VA	0.0%	943	943	Outage
Vogtle 3	Southern	GA	60.0%	1,114	446	Derated
Browns Ferry 3	TVA	AL	100.0%	1,227	—	At power
Browns Ferry 2	TVA	AL	100.0%	1,208	—	At power
Vogtle 1	Southern	GA	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
Vogtle 4	Southern	GA	100.0%	1,114	—	At power
North Anna 1	PJM	VA	100.0%	948	—	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
Surry 1	PJM	VA	100.0%	838	—	At power
Surry 2	PJM	VA	100.0%	838	—	At power
Region III · Midwest (14 units, 13,560 MW online)
Davis-Besse	PJM	OH	0.0%	894	894	Outage
D.C. Cook 1	PJM	MI	71.0%	1,009	293	Derated
Byron 2	PJM	IL	93.0%	1,136	80	Derated
Perry 1	PJM	OH	98.0%	1,240	—	At power
Braidwood 1	PJM	IL	100.0%	1,183	—	At power
D.C. Cook 2	PJM	MI	100.0%	1,168	—	At power
Byron 1	PJM	IL	100.0%	1,164	—	At power
Braidwood 2	PJM	IL	100.0%	1,152	—	At power
LaSalle 2	PJM	IL	100.0%	1,134	—	At power
LaSalle 1	PJM	IL	100.0%	1,131	—	At power
Quad Cities 2	PJM	IL	100.0%	911	—	At power
Quad Cities 1	PJM	IL	100.0%	908	—	At power
Dresden 2	PJM	IL	100.0%	902	—	At power
Dresden 3	PJM	IL	100.0%	895	—	At power
Region IV · West / South-Central (7 units, 8,923 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