Power Reactor Status Report for May 31, 2008

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	95		HOLDING FOR POWER UPRATE TESTING	*
Calvert Cliffs 1	100
Calvert Cliffs 2	100
FitzPatrick	98		HOLDING FOR ROD PATTERN ADJUSTMENT ON 6/1/08.	*
Ginna	100
Hope Creek 1	95		LIMITED IN POWER LEVEL DUE TO POWER UPRATE TESTING	*
Indian Point 2	100
Indian Point 3	100
Limerick 1	100
Limerick 2	100
Millstone 2	100
Millstone 3	100
Nine Mile Point 1	100
Nine Mile Point 2	100
Oyster Creek	80		HOLDING WHILE PERFORMING CONDENSER BACKWASH VALVE WORK	*
Peach Bottom 2	100
Peach Bottom 3	100
Pilgrim 1	100
Salem 1	100
Salem 2	99		HOLDING WHILE TROUBLESHOOTING SECONDARY ISSUE	*
Seabrook 1	100
Susquehanna 1	94		STABLE AT NEW NSSS LIMIT DUE TO POWER UPRATE
Susquehanna 2	100		VOLTAGE REGULATOR IN MANUAL
Three Mile Island 1	100		MIN GENERATION ALERT OVERNIGHT
Vermont Yankee	100

Region 2

Unit	Power	Down	Reason or Comment	Change in report (*)	Number of Scrams (#)
Browns Ferry 1	100		500 KV TRINITY LINE OOS UNTIL 6/9/08
Browns Ferry 2	100		500 KV TRINITY LINE OOS UNTIL 6/9/08
Browns Ferry 3	100		500 KV TRINITY LINE OOS UNTIL 6/9/08
Brunswick 1	100
Brunswick 2	100
Catawba 1	0	05/03/2008	REFUELING OUTAGE
Catawba 2	100
Crystal River 3	100
Farley 1	100
Farley 2	100
Harris 1	100
Hatch 1	100
Hatch 2	100
McGuire 1	93		INCREASING POWER FOLLOWING TURBINE VALVE TESTING	*
McGuire 2	100
North Anna 1	100
North Anna 2	100
Oconee 1	0	04/11/2008	EXITING REFUELING OUTAGE - STARTUP IN PROGRESS	*
Oconee 2	100
Oconee 3	100
Robinson 2	100
Saint Lucie 1	100
Saint Lucie 2	100
Sequoyah 1	100
Sequoyah 2	0	05/04/2008	EXITING REFUELING OUTAGE.	*
Summer	0	04/25/2008	EXITING REFUELING OUTAGE.
Surry 1	100
Surry 2	100
Turkey Point 3	100			*
Turkey Point 4	100
Vogtle 1	100
Vogtle 2	98		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	95		REDUCED POWER WHILE TROUBLESHOOTING GOVERNOR VALVE PROBLEM	*
Byron 1	100
Byron 2	100
Clinton	96		100% ELECTRICAL CAPABILITY
D.C. Cook 1	100
D.C. Cook 2	100
Davis-Besse	100
Dresden 2	99		100% ELECTRICAL CAPABILITY
Dresden 3	99		100% ELECTRICAL CAPABILITY
Duane Arnold	98		100% ELECTRICAL CAPABILITY
Fermi 2	100
Kewaunee	100
La Salle 1	100
La Salle 2	100
Monticello	100
Palisades	100
Perry 1	100
Point Beach 1	100
Point Beach 2	100
Prairie Island 1	99		POWER REDUCED DUE TO CALORIMETRIC MONITORING ISSUE
Prairie Island 2	100
Quad Cities 1	97		100% ELECTRICAL CAPABILITY
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	65		REDUCED POWER PER LOAD DISPATCHER REQUEST	*
Comanche Peak 1	100
Comanche Peak 2	100
Cooper	100
Diablo Canyon 1	100
Diablo Canyon 2	100
Fort Calhoun	0	04/19/2008	REFUELING OUTAGE; RAUN TRANSMISSION LINE (1 OF 3) OOS
Grand Gulf 1	100
Palo Verde 1	100
Palo Verde 2	1		STARTUP IN PROGRESS - REACTOR CRITICAL BELOW POINT OF ADDING HEAT	*
Palo Verde 3	100
River Bend 1	100
San Onofre 2	99		STEAM GENERATOR LIMITATIONS
San Onofre 3	98			*
South Texas 1	100
South Texas 2	100
Waterford 3	0	04/26/2008	REFUELING OUTAGE	*
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.