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Power Reactor Status Report for April 30, 2011

UNEVALUATED INFORMATION PROVIDED BY THE FACILITY

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Region 1

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Beaver Valley 1 100
Beaver Valley 2 100
Calvert Cliffs 1 100 HIGH SYSTEM VOLTAGE ALERT
Calvert Cliffs 2 100 HIGH SYSTEM VOLTAGE ALERT
FitzPatrick 75 LOWERING POWER TO 55% TO PLUG A WATER BOX TUBE *
Ginna 0 2011-04-23 REFUELING OUTAGE
Hope Creek 1 100 HIGH SYSTEM VOLTAGE ALERT
Indian Point 2 100
Indian Point 3 100
Limerick 1 100
Limerick 2 100
Millstone 2 0 2011-04-02 EXITING REFUELING OUTAGE *
Millstone 3 100
Nine Mile Point 1 80 INCREASING POWER *
Nine Mile Point 2 100
Oyster Creek 50 SHUTTING DOWN FOR A MAINTENANCE OUTAGE *
Peach Bottom 2 100
Peach Bottom 3 62 ROD SEQUENCE EXCHANGE - WATER BOX CLEANING - FEED PUMP MAINTENANCE *
Pilgrim 1 0 2011-04-17 REFUELING OUTAGE *
Salem 1 96 INCREASING POWER - HIGH VOLTAGE ACTION WARNING *
Salem 2 0 2011-04-09 REFUELING OUTAGE - HIGH VOLTAGE ACTION WARNING *
Seabrook 1 0 2011-03-31 EXITING REFUELING OUTAGE
Susquehanna 1 98 100% ELECTRICAL CAPABILITY - HIGH SYSTEM VOLTAGE ACTION *
Susquehanna 2 0 2011-04-04 REFUELING OUTAGE - HIGH SYSTEM VOLTAGE ACTION
Three Mile Island 1 100
Vermont Yankee 100

Region 2

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Browns Ferry 1 0 2011-04-27 REACTOR SCRAM DUE TO LOSS OF OFFSITE POWER - SEE EN #46793 500 KV OFFSITE LINES OOS
Browns Ferry 2 0 2011-04-27 REACTOR SCRAM DUE TO LOSS OF OFFSITE POWER - SEE EN #46793 500 KV OFFSITE LINES OOS
Browns Ferry 3 0 2011-04-27 REACTOR SCRAM DUE TO LOSS OF OFFSITE POWER - SEE EN #46793 500 KV OFFSITE LINES OOS
Brunswick 1 100
Brunswick 2 100
Catawba 1 0 2011-04-23 REFUELING OUTAGE
Catawba 2 100
Crystal River 3 0 2009-09-25 MAINTENANCE OUTAGE - CONTAINMENT TENSIONING ON HOLD
Farley 1 60 REPAIRING A LEAK IN THE FEEDWATER LUBE OIL PRESSURE SWITCH *
Farley 2 100
Harris 1 100
Hatch 1 100
Hatch 2 0 2011-03-28 REFUELING OUTAGE
McGuire 1 100
McGuire 2 100
North Anna 1 100
North Anna 2 100
Oconee 1 0 2011-04-01 DEFUELED
Oconee 2 100
Oconee 3 100
Robinson 2 100 LOWERING POWER TO 95% TO PREVENT EXCEEDING ENVIRONMENTAL DISCHARGE TEMPERATURE LIMITS *
Saint Lucie 1 90 HIGH VIBRATIONS IN CIRC WATER PUMP *
Saint Lucie 2 0 2011-01-02 EXITING REFUELING OUTAGE *
Sequoyah 1 100 GRID RISK YELLOW
Sequoyah 2 90 GRID RISK YELLOW - COASTDOWN TO REFUELING OUTAGE *
Summer 0 2011-04-15 DEFUELED *
Surry 1 100
Surry 2 0 2011-04-16 REFUELING OUTAGE
Turkey Point 3 100
Turkey Point 4 0 2011-03-20 EXITING REFUELING OUTAGE
Vogtle 1 100
Vogtle 2 100
Watts Bar 1 0 2011-04-03 REFUELING OUTAGE *

Region 3

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Braidwood 1 100
Braidwood 2 0 2011-04-17 REFUELING OUTAGE
Byron 1 94 HOLDING FOR PLANT TESTING *
Byron 2 100
Clinton 97 100% ELECTRICAL CAPABILITY
D.C. Cook 1 100
D.C. Cook 2 100
Davis-Besse 100 *
Dresden 2 100
Dresden 3 100
Duane Arnold 100
Fermi 2 100 *
Kewaunee 100
La Salle 1 100
La Salle 2 100
Monticello 0 2011-03-04 REFUELING OUTAGE
Palisades 100
Perry 1 0 2011-04-17 REFUELING OUTAGE
Point Beach 1 100
Point Beach 2 0 2011-02-28 EXITING REFUELING OUTAGE
Prairie Island 1 0 2011-04-29 REFUELING OUTAGE *
Prairie Island 2 100
Quad Cities 1 100
Quad Cities 2 100

Region 4

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Arkansas Nuclear 1 43 HOLD DUE TO STORMS/DISPATCH REQUEST *
Arkansas Nuclear 2 77 HOLD DUE TO STORMS/DISPATCH REQUEST *
Callaway 100
Columbia Generating Station 0 2011-04-02 REFUELING OUTAGE
Comanche Peak 1 100
Comanche Peak 2 100 *
Cooper 0 2011-03-12 EXITING REFUELING OUTAGE
Diablo Canyon 1 100
Diablo Canyon 2 100 WILL REDUCE POWER AND ENTER REFUEL OUTAGE ON 4/30/11 *
Fort Calhoun 0 2011-04-09 DEFUELED
Grand Gulf 1 96 POWER LIMITED 2ND STAGE MSR OUT OF SERVICE FOR THE ENTIRE CYCLE
Palo Verde 1 100
Palo Verde 2 0 2011-04-01 REFUELING OUTAGE
Palo Verde 3 100
River Bend 1 100
San Onofre 2 100
San Onofre 3 98 TURBINE VALVE TESTING *
South Texas 1 0 2011-04-02 REFUELING OUTAGE
South Texas 2 100
Waterford 3 0 2011-04-05 REFUELING OUTAGE
Wolf Creek 1 0 2011-03-18 DEFUELED

* - 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.