Fleet by NRC Region · updated daily

Regions

The U.S. nuclear fleet across the NRC's four regulatory regions. As of Oct 16, 2026 · Updated every morning from the NRC Daily Power Reactor Status Report.

Northeast

King of Prussia, PA

78.4%

availability

16,457 MW

online of 20,979

4,522 MW

offline

20 units: 15 at power 2 derated 3 in outage

Top markets

PJM 14,298 MW ISO-NE 3,352 MW NYISO 3,329 MW

Region II

Southeast

Atlanta, GA

88.1%

availability

32,294 MW

online of 36,669

4,358 MW

offline

36 units: 30 at power 2 derated 4 in outage

Top markets

TVA 8,181 MW Southern 8,080 MW Duke Carolinas 7,226 MW

Region III

Midwest

Lisle, IL

78.5%

availability

16,547 MW

online of 21,079

4,508 MW

offline

22 units: 16 at power 1 derated 5 in outage

Top markets

PJM 14,826 MW MISO 6,253 MW

Region IV

West / South-Central

Arlington, TX

81.2%

availability

14,713 MW

online of 18,124

3,411 MW

offline

16 units: 11 at power 2 derated 3 in outage

Top markets

ERCOT 4,986 MW SRP 3,937 MW MISO 3,862 MW

Region Summary

Region	Coverage	Units	Capacity	Online	Availability	MW Offline	Offline / Derated	Top markets
Region I	Northeast	20	20,979	16,457	78.4%	4,522	3 / 2	PJMISO-NENYISO
Region II	Southeast	36	36,669	32,294	88.1%	4,358	4 / 2	TVASouthernDuke Carolinas
Region III	Midwest	22	21,079	16,547	78.5%	4,508	5 / 1	PJMMISO
Region IV	West / South-Central	16	18,124	14,713	81.2%	3,411	3 / 2	ERCOTSRPMISO

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 (20 units, 16,457 MW online)
Peach Bottom 2	PJM	PA	0.0%	1,265	1,265	Outage
Millstone 3	ISO-NE	CT	0.0%	1,243	1,243	Outage
Salem 1	PJM	NJ	0.0%	1,146	1,146	Outage
Salem 2	PJM	NJ	60.0%	1,142	457	Derated
Susquehanna 1	PJM	PA	67.0%	1,247	412	Derated
Peach Bottom 3	PJM	PA	100.0%	1,285	—	At power
Nine Mile Point 2	NYISO	NY	100.0%	1,283	—	At power
Susquehanna 2	PJM	PA	100.0%	1,247	—	At power
Seabrook 1	ISO-NE	NH	100.0%	1,246	—	At power
Hope Creek 1	PJM	NJ	100.0%	1,172	—	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
Millstone 2	ISO-NE	CT	100.0%	863	—	At power
Calvert Cliffs 2	PJM	MD	100.0%	861	—	At power
FitzPatrick	NYISO	NY	100.0%	844	—	At power
Nine Mile Point 1	NYISO	NY	100.0%	621	—	At power
Ginna	NYISO	NY	100.0%	581	—	At power
Region II · Southeast (36 units, 32,294 MW online)
Vogtle 2	Southern	GA	0.0%	1,152	1,152	Outage
Sequoyah 2	TVA	TN	0.0%	1,126	1,126	Outage
North Anna 2	PJM	VA	0.0%	943	943	Outage
Robinson 2	Duke Progress	SC	0.0%	759	759	Outage
Hatch 1	Southern	GA	64.0%	876	315	Derated
Farley 2	Southern	AL	93.0%	896	63	Derated
Grand Gulf 1	MISO	MS	100.0%	1,397	—	At power
Browns Ferry 1	TVA	AL	100.0%	1,227	—	At power
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 1	Duke Carolinas	NC	100.0%	1,158	—	At power
McGuire 2	Duke Carolinas	NC	100.0%	1,158	—	At power
Catawba 2	Duke Carolinas	SC	100.0%	1,150	—	At power
Vogtle 1	Southern	GA	100.0%	1,150	—	At power
Sequoyah 1	TVA	TN	100.0%	1,148	—	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 3	Southern	GA	100.0%	1,114	—	At power
Vogtle 4	Southern	GA	100.0%	1,114	—	At power
Saint Lucie 2	FPL	FL	100.0%	987	—	At power
Saint Lucie 1	FPL	FL	100.0%	981	—	At power
Summer	Dominion SC	SC	100.0%	977	—	At power
Harris 1	Duke Progress	NC	100.0%	964	—	At power
North Anna 1	PJM	VA	100.0%	948	—	At power
Brunswick 1	Duke Progress	NC	100.0%	938	—	At power
Brunswick 2	Duke Progress	NC	100.0%	932	—	At power
Farley 1	Southern	AL	100.0%	895	—	At power
Hatch 2	Southern	GA	100.0%	883	—	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	98.0%	862	—	At power
Turkey Point 4	FPL	FL	100.0%	844	—	At power
Surry 1	PJM	VA	100.0%	838	—	At power
Surry 2	PJM	VA	100.0%	838	—	At power
Turkey Point 3	FPL	FL	100.0%	837	—	At power
Region III · Midwest (22 units, 16,547 MW online)
Callaway	MISO	MO	0.0%	1,190	1,190	Outage
Byron 2	PJM	IL	0.0%	1,136	1,136	Outage
D.C. Cook 1	PJM	MI	0.0%	1,009	1,009	Outage
Point Beach 1	MISO	WI	0.0%	589	589	Outage
Prairie Island 1	MISO	MN	0.0%	521	521	Outage
Dresden 3	PJM	IL	93.0%	895	63	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
Fermi 2	MISO	MI	100.0%	1,141	—	At power
LaSalle 2	PJM	IL	100.0%	1,134	—	At power
LaSalle 1	PJM	IL	100.0%	1,131	—	At power
Clinton	MISO	IL	100.0%	1,079	—	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
Davis-Besse	PJM	OH	100.0%	894	—	At power
Monticello	MISO	MN	100.0%	617	—	At power
Point Beach 2	MISO	WI	100.0%	597	—	At power
Prairie Island 2	MISO	MN	100.0%	519	—	At power
Region IV · West / South-Central (16 units, 14,713 MW online)
Palo Verde 1	SRP	AZ	0.0%	1,311	1,311	Outage
Diablo Canyon 1	CAISO	CA	0.0%	1,122	1,122	Outage
Cooper	SPP	NE	0.0%	772	772	Outage
Comanche Peak 1	ERCOT	TX	91.0%	1,209	109	Derated
Waterford 3	MISO	LA	91.0%	1,087	98	Derated
Palo Verde 2	SRP	AZ	100.0%	1,314	—	At power
Palo Verde 3	SRP	AZ	100.0%	1,312	—	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 2	ERCOT	TX	100.0%	1,197	—	At power
Wolf Creek 1	SPP	KS	100.0%	1,177	—	At power
Columbia Generating Station	BPA	WA	100.0%	1,151	—	At power
Diablo Canyon 2	CAISO	CA	100.0%	1,118	—	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