Power Reactor Status Report for May 23, 2007

UNEVALUATED INFORMATION PROVIDED BY THE FACILITY

On this page:

• Region 1 Reactors
• Region 2 Reactors
• Region 3 Reactors
• Region 4 Reactors

Region 1

Unit	Power	Down	Reason or Comment	Change in report (*)	Number of Scrams (#)
Beaver Valley 1	100
Beaver Valley 2	100
Calvert Cliffs 1	100
Calvert Cliffs 2	100
FitzPatrick	50		FEEDWATER PUMP MAINTENANCE	*
Ginna	100
Hope Creek 1	100		SWITCHYARD WORK	*
Indian Point 2	100		MAINTENANCE ON FEEDER 95891 (1 OF 3)
Indian Point 3	100		MAINTENANCE ON FEEDER 95891 (1 OF 3)
Limerick 1	100
Limerick 2	100
Millstone 2	99		CIRCULATING WATER PUMP OOS	*
Millstone 3	100			*
Nine Mile Point 1	85		ROD PATTERN ADJUSTMENT	*
Nine Mile Point 2	100
Oyster Creek	100
Peach Bottom 2	100
Peach Bottom 3	100
Pilgrim 1	100
Salem 1	100
Salem 2	100
Seabrook 1	100		SWITCHYARD BREAKER 169 OOS UNTIL 25MAY07
Susquehanna 1	100
Susquehanna 2	100
Three Mile Island 1	100		230 KV LINE 1051 OOS FOR MAINTENANCE	*
Vermont Yankee	0	05/13/2007	REFUELING OUTAGE

Region 2

Unit	Power	Down	Reason or Comment	Change in report (*)	Number of Scrams (#)
Browns Ferry 1	1		STARTUP - CRITICAL, HEATUP IN PROG.BELOW POWER RANGE; TRINTY-1 500 KV AND ATHENS 161 KV LINE MAINTENANCE	*
Browns Ferry 2	100		TRINTY-1 500 KV AND ATHENS 161 KV LINE MAINTENANCE
Browns Ferry 3	100		TRINTY-1 500 KV AND ATHENS 161 KV LINE MAINTENANCE
Brunswick 1	100			*
Brunswick 2	100
Catawba 1	100
Catawba 2	100
Crystal River 3	100
Farley 1	100
Farley 2	48		INCREASING POWER	*
Harris 1	100			*
Hatch 1	100
Hatch 2	100
McGuire 1	0	03/10/2007	REFUELING OUTAGE.	*
McGuire 2	100
North Anna 1	100
North Anna 2	100
Oconee 1	100
Oconee 2	0	04/27/2007	REFUELING OUTAGE
Oconee 3	100
Robinson 2	100		115 KV SWITCHYARD MAINTENANCE - NO OFFSITE POWER IMPACT
Saint Lucie 1	0	04/01/2007	REFUELING OUTAGE - HEATING UP	*
Saint Lucie 2	100
Sequoyah 1	100
Sequoyah 2	100
Summer	100
Surry 1	100
Surry 2	100
Turkey Point 3	100
Turkey Point 4	100
Vogtle 1	99		100% ELECTRICAL CAPABILITY.
Vogtle 2	99		100% ELECTRICAL CAPABILITY
Watts Bar 1	100

Region 3

Unit	Power	Down	Reason or Comment	Change in report (*)	Number of Scrams (#)
Braidwood 1	100
Braidwood 2	100
Byron 1	100
Byron 2	100
Clinton	97		100% ELECTRICAL CAPABILITY
D.C. Cook 1	100
D.C. Cook 2	100
Davis-Besse	100			*
Dresden 2	99		100% ELECTRICAL CAPABILITY
Dresden 3	100
Duane Arnold	98		100% ELECTRICAL CAPABILITY
Fermi 2	100
Kewaunee	100
La Salle 1	100
La Salle 2	100
Monticello	100
Palisades	100		PM WILL BE PERFORMED TODAY ON OFFSITE POWER SUPPLY BREAKER #152-402 TO SAFEGUARDS BUS	*
Perry 1	55		HOLDING POWER DUE TO DIGITAL FEEDWATER ISSUES	*
Point Beach 1	100
Point Beach 2	100
Prairie Island 1	100
Prairie Island 2	100
Quad Cities 1	1		REACTOR CRITICAL BELOW POWER RANGE - CURRENTLY HOLDING FOR RCIC TESTING	*
Quad Cities 2	96		100% ELECTRICAL CAPABILITY

Region 4

Unit	Power	Down	Reason or Comment	Change in report (*)	Number of Scrams (#)
Arkansas Nuclear 1	100
Arkansas Nuclear 2	100
Callaway	100
Columbia Generating Station	0	05/12/2007	REFUELING OUTAGE
Comanche Peak 1	100
Comanche Peak 2	100
Cooper	51		INCREASING POWER	*
Diablo Canyon 1	0	04/30/2007	REFUELING OUTAGE - CURRENTLY IN MIDLOOP OPERATION - WILL HAVE 230 KV MORRO BAY - MESA LINE OOS THURSDAY 5/24	*
Diablo Canyon 2	100		WILL HAVE 230 KV MORRO BAY - MESA LINE OOS THURSDAY 5/24	*
Fort Calhoun	100			*
Grand Gulf 1	0	05/19/2007	SCRAM DUE TO LOSS OF CONDENSER VACUUM SEE EN #43376
Palo Verde 1	0	05/18/2007	REFUELING OUTAGE
Palo Verde 2	100
Palo Verde 3	100			*
River Bend 1	0	05/22/2007	FORCED OUTAGE - RCS COOLDOWN IN PROGRESS - SHUTDOWN TO INVESTIGATE AND REPAIR 'A' RECIRC PUMP MALFUNCTION	*
San Onofre 2	99		100% ELECTRICAL CAPABILITY
San Onofre 3	100
South Texas 1	100
South Texas 2	100
Waterford 3	100
Wolf Creek 1	100

* - Power Reactor Status Report change within past 24 hours
# - Number of reactor scrams or trips within past 24 hours

Notes:

• Reactor status data collected between 4 a.m. and 8 a.m. each day.
• All times are based on eastern time.