Text

Monthly Operating Reports Second Quarter 2008
	ML082190013
Person / Time
Site:	Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Three Mile Island, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Ginna, Diablo Canyon, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Quad Cities, Fort Calhoun, FitzPatrick, McGuire, LaSalle
Issue date:	08/07/2008
From:	; NRC/NRR/ADRO/DIRS/IPAB
To:	;
	Masciantonio A S, NRR/DIRS, 415-1290
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ml082190002	List: ML082190013;
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RPT_PERIOD:200804UNIT_NME:ANO Unit 1 DOCKET:313 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8502. Maximum Dependable Capacity (MWe-Net)836720.002,903.00235,383.61720.002,903.00232,427.53 0.000.00817.50611,739.002,224,401.00181,776,868.24This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit began the month at, or near full power. On 04/20/08, power was reduced to ~40% to take a Main Feedwater Pump off line. The Unit returned to full power the next day and operated the remainder of the month at, or near full power.

RPT_PERIOD:200805UNIT_NME:ANO Unit 1 DOCKET:313 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8502. Maximum Dependable Capacity (MWe-Net)836744.003,647.00236,127.61744.003,647.00233,171.53 0.000.00817.50611,473.002,835,874.00182,388,341.24This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit began the month at, or near full power. On 05/02/08, the System Dispatcher directed a power reduction to ~87% due to grid instability. On 05/07/08, the Unit returned to near full power. On 05/16/08, the System Dispatcher directed a power reduction to ~60% due to the loss of a 500 KV line. The Unit returned to near full power on 05/18/08. On 05/24/08, the System Dispatcher directed a power reduction to ~50% due to the loss of a 500 KV line. The Unit returned to near full power on 05/25/08, and operated the remainder of the month at, or near full power.

RPT_PERIOD:200806UNIT_NME:ANO Unit 1 DOCKET:313 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8502. Maximum Dependable Capacity (MWe-Net)836720.004,367.00236,847.61720.004,367.00233,891.53 0.000.00817.50610,763.003,446,637.00182,999,104.24This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit operated the entire month at, or near full power.

RPT_PERIOD:200804UNIT_NME:ANO Unit 2 DOCKET:368 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10322. Maximum Dependable Capacity (MWe-Net)988489.322,297.22205,378.10478.672,286.57202,714.01 0.000.000.00445,028.002,186,146.00179,261,157.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit began the month continuing the 19th refueling outage. On 04/10/08 the Unit was tied to the grid. On 4/11/08, the Main Turbine was taken off line for overspeed trip testing, then re-tied to the grid. On 4/11/08, the Main Turbine was manually taken off line to make wiring repairs to the #1 Control Valve, then tied back to the grid that same day. The Unit achieved full power on 04/14/08 and operated the remainder of the month at, or near full power.2008-013/16/2008S 239.78C42R19 Refueling Outage2008-034/11/2008F 0.65A5Manually tripped the MTG for #1 Control Valve wiring repair. The Reactor remained critical.2008-024/11/2008S 0.90B5Tripped Main Turbine for Overspeed Trip Testing. The Reactor remained critical.

RPT_PERIOD:200805UNIT_NME:ANO Unit 2 DOCKET:368 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10322. Maximum Dependable Capacity (MWe-Net)988744.003,041.22206,122.10744.003,030.57203,458.01 0.000.000.00747,647.002,933,793.00180,008,804.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit began the month at, or near full power. On 05/24/08, the System Dispatcher directed a power reduction to ~95% due to the loss of a 500 KV line. The Unit returned to full power that same day, and operated the remainder of the month at, or near full power.

RPT_PERIOD:200806UNIT_NME:ANO Unit 2 DOCKET:368 OPERATING DATA REPORTPREPARER NAME:Steven L. CoffmanPREPARER TELEPHONE:479-858-5560 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10322. Maximum Dependable Capacity (MWe-Net)988720.003,761.22206,842.10720.003,750.57204,178.01 0.000.000.00719,892.003,653,685.00180,728,696.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit operated the entire month at, or near full power.

RPT_PERIOD:200804UNIT_NME:Beaver Valley Unit 1 DOCKET:334 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9112. Maximum Dependable Capacity (MWe-Net)892720.002,903.00202,895.56720.002,903.00200,273.43 0.000.000.00655,921.002,611,202.00154,144,111.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the month except for a planned derate to 97% power for Turbine Valve testing.

RPT_PERIOD:200805UNIT_NME:Beaver Valley Unit 1 DOCKET:334 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9112. Maximum Dependable Capacity (MWe-Net)892744.003,647.00203,639.56744.003,647.00201,017.43 0.000.000.00677,204.003,288,406.00154,821,315.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the entire month of May.

RPT_PERIOD:200806UNIT_NME:Beaver Valley Unit 1 DOCKET:334 OPERATING DATA REPORTPREPARER NAME:Lawrence CriscionePREPARER TELEPHONE:330-384-4693 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9112. Maximum Dependable Capacity (MWe-Net)892720.004,367.00204,359.56720.004,367.00201,737.43 0.000.000.00647,844.203,936,250.20155,469,159.70This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the month of June.

RPT_PERIOD:200804UNIT_NME:Beaver Valley Unit 2 DOCKET:412 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8682. Maximum Dependable Capacity (MWe-Net)846312.122,495.12153,524.18312.022,495.02152,746.14 0.000.000.00255,348.002,153,624.00121,760,598.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit reduced power in preparation for its 13th refueling outage commencing the planned outage on 4/14/08 at 00:01.14/14/2008S 407.98C113th Refueling Outage. No issues on shutdown.

RPT_PERIOD:200805UNIT_NME:Beaver Valley Unit 2 DOCKET:412 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8682. Maximum Dependable Capacity (MWe-Net)846250.622,745.74153,774.80198.622,693.64152,944.76 0.000.000.00115,297.002,268,921.00121,875,895.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit went critical on 5/15/08 at 08:12 and commenced turbine roll. At 500 RPM, there were indications of high temperatures on the HP turbine bearing number 2. The unit was shutdown and the bearing was replaced. The unit again went critical on 5/22/08 at 16:31 and the generator was synched to the grid at 23:57. The turbine was removed from the grid on 5/24/08 at 04:00 to replace a turbine control valve electronic circuit card. On 5/24/08 at 21:26, the generator was connected to the grid and reactor power was increased. Power was held at various times to tune the feedwater reg valves that were worked this outage to support power uprate. 95.5% power (previous 100% level) was reached on 5/29/08. 14/14/2008S 527.95C413th Refueling Outage. No issues on shutdown.25/24/2008F 17.43A5Turbine Control system electronic card failure required the turbine to be removed from service for replacement (reactor remained critical).

RPT_PERIOD:200806UNIT_NME:Beaver Valley Unit 2 DOCKET:412 OPERATING DATA REPORTPREPARER NAME:Lawrence CriscionePREPARER TELEPHONE:330-384-4693 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8682. Maximum Dependable Capacity (MWe-Net)846720.003,465.74154,494.80720.003,413.64153,664.76 0.000.000.00636,425.002,905,346.00122,512,320.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the month of June.

RPT_PERIOD:200804UNIT_NME:Braidwood Unit 1 DOCKET:456 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1156720.002,903.00151,237.04720.002,903.00150,211.50 0.000.000.00867,480.003,445,380.00166,194,347.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Operated normally at full load for the entire month.

RPT_PERIOD:200805UNIT_NME:Braidwood Unit 1 DOCKET:456 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1156744.003,647.00151,981.04744.003,647.00150,955.50 0.000.000.00894,521.004,339,901.00167,088,868.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Operated normally at full load for the entire month.

RPT_PERIOD:200806UNIT_NME:Braidwood Unit 1 DOCKET:456 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1156720.004,367.00152,701.04720.004,367.00151,675.50 0.000.000.00853,721.005,193,622.00167,942,589.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Operated normally at full load for the entire month.

RPT_PERIOD:200804UNIT_NME:Braidwood Unit 2 DOCKET:457 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1131479.002,662.00155,236.00479.002,662.00154,487.85 0.000.000.00537,877.003,077,686.00169,692,638.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Operated normally for the entire month. On 04/04/2008 the Unit began a fuel depletion coastdown and enter A2R13 Refeuling Outage on 04/20/2008 23:00.A2R134/20/2008S 241.00C1On 04/20/2008 at 23:00 Unit 1 was removed from service and entered A2R13 Refeuling Outage.Unit 2 reactor was taken critical by boron dilution on 05/16/08 at 1523. Initial physics testing was completed and reactor power raised to greater than 5% to enter mode 1 on 05/162008 at 2044.

Generator synchronization to the grid occurred on 05/17/2008 at 0545 to end A2R13.

RPT_PERIOD:200805UNIT_NME:Braidwood Unit 2 DOCKET:457 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1131368.623,030.62155,604.62354.253,016.25154,842.10 0.000.000.00359,778.003,437,464.00170,052,416.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Completed A2R13 Refuling Outage on 05/17/2008 and following power ascension operated normally at full load for the remainder of the month. During A2R13 problems with the fuel assembly handling tool occurred and resulted in outage extension losses of approximately 2.3 days. A2R134/20/2008S 389.75C4On 04/20/2008 at 23:00 Unit 1 was removed from service and entered A2R13 Refeuling Outage.Unit 2 reactor was taken critical by boron dilution on 05/16/08 at 1523. Initial physics testing was completed and reactor power raised to greater than 5% to enter mode 1 on 05/162008 at 2044.

Generator synchronization to the grid occurred on 05/17/2008 at 0545 to end A2R13.

RPT_PERIOD:200806UNIT_NME:Braidwood Unit 2 DOCKET:457 OPERATING DATA REPORTPREPARER NAME:HildebrantPREPARER TELEPHONE:815/417-2173 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1131720.003,750.62156,324.62720.003,736.25155,562.10 0.000.000.00831,137.004,268,601.00170,883,553.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Operated normally at full load for the entire month.

RPT_PERIOD:200804UNIT_NME:Browns Ferry Unit 1 DOCKET:259 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1079720.002,903.0067,212.39720.002,903.0065,625.12 0.000.000.00772,102.333,168,346.0161,472,907.41This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Browns Ferry Unit 1 DOCKET:259 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1079744.003,647.0067,956.39744.003,647.0066,369.12 0.000.000.00788,179.303,956,525.3162,261,086.71This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Browns Ferry Unit 1 DOCKET:259 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1079720.004,367.0068,676.39720.004,367.0067,089.12 0.000.000.00763,820.004,720,345.3163,024,906.71This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Browns Ferry Unit 2 DOCKET:260 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1104720.002,903.00191,796.43720.002,903.00188,918.84 0.000.000.00807,680.333,273,379.88192,222,764.17This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Browns Ferry Unit 2 DOCKET:260 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256/729/7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1104744.003,647.00192,540.43744.003,647.00189,662.84 0.000.000.00827,682.004,101,061.88193,050,446.17This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Browns Ferry Unit 2 DOCKET:260 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1104720.004,367.00193,260.43720.004,367.00190,382.84 0.000.000.00772,732.004,873,793.88193,823,178.17This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Browns Ferry Unit 3 DOCKET:296 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)11050.001,458.90148,089.970.001,361.55146,385.06 0.000.000.000.001,414,693.74152,303,732.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

13/18/2008S 720.00C4Unit 3 Cycle 13 RPT_PERIOD:200805UNIT_NME:Browns Ferry Unit 3 DOCKET:296 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1105404.901,863.80148,494.87345.401,706.95146,730.46 0.000.000.00339,153.071,753,846.81152,642,885.67This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

13/18/2008S 398.60C4Unit 3 Cycle 13 RPT_PERIOD:200806UNIT_NME:Browns Ferry Unit 3 DOCKET:296 OPERATING DATA REPORTPREPARER NAME:Kathy C. HollanderPREPARER TELEPHONE:256-729-7447 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11202. Maximum Dependable Capacity (MWe-Net)1105720.002,583.80149,214.87720.002,426.95147,450.46 0.000.000.00789,755.002,543,601.81153,432,640.67This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Brunswick Unit 1 DOCKET:325 OPERATING DATA REPORTPREPARER NAME:Chris MillsPREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9832. Maximum Dependable Capacity (MWe-Net)93868.621,846.57203,756.5433.421,810.10198,931.93 0.000.000.007,406.001,657,381.00155,327,765.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 was shutdown for planned refueling outage beginning March 15 and continued into April.B117R 13/15/2008S 686.58C4Planned B117R1 refuel outage.

RPT_PERIOD:200805UNIT_NME:Brunswick Unit 1 DOCKET:325 OPERATING DATA REPORTPREPARER NAME:Chris MillsPREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9832. Maximum Dependable Capacity (MWe-Net)938744.002,590.57204,500.54744.002,554.10199,675.93 0.000.000.00704,958.002,362,339.00156,032,723.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Brunswick Unit 1 DOCKET:325 OPERATING DATA REPORTPREPARER NAME:Chris MillsPREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9832. Maximum Dependable Capacity (MWe-Net)938720.003,310.57205,220.54720.003,274.10200,395.93 0.000.000.00686,283.003,048,622.00156,719,006.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Brunswick Unit 2 DOCKET:324 OPERATING DATA REPORTPREPARER NAME:Chris Mills PREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9802. Maximum Dependable Capacity (MWe-Net)937720.002,903.00213,495.44720.002,860.17207,124.89 0.000.000.00676,182.002,682,361.00155,775,841.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Brunswick Unit 2 DOCKET:324 OPERATING DATA REPORTPREPARER NAME:Chris MillsPREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9802. Maximum Dependable Capacity (MWe-Net)937744.003,647.00214,239.44744.003,604.17207,868.89 0.000.000.00697,370.003,379,731.00156,473,211.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Brunswick Unit 2 DOCKET:324 OPERATING DATA REPORTPREPARER NAME:Chris MillsPREPARER TELEPHONE:910-457-2567 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9802. Maximum Dependable Capacity (MWe-Net)937720.004,367.00214,959.44720.004,324.17208,588.89 0.000.000.00662,438.004,042,169.00157,135,649.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Byron Unit 1 DOCKET:454 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1152404.682,394.71173,275.08395.332,385.35172,171.59 0.000.000.00421,742.002,786,677.00185,224,175.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Byron unit 1 ended B1R15 on 4/14/08. Original scheduled outage completion was 4/9/08 at 23:00B1R153/23/2008S 324.67C4None RPT_PERIOD:200805UNIT_NME:Byron Unit 1 DOCKET:454 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1152744.003,138.71174,019.08744.003,129.35172,915.59 0.000.000.00883,683.003,670,360.00186,107,858.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Byron Unit 1 DOCKET:454 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11872. Maximum Dependable Capacity (MWe-Net)1152720.003,858.71174,739.08720.003,849.35173,635.59 0.000.000.00847,570.004,517,930.00186,955,428.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Byron Unit 2 DOCKET:455 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1125720.002,903.00166,138.53720.002,903.00165,278.38 0.000.000.00835,347.003,381,426.00177,343,353.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Byron Unit 2 DOCKET:455 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1125744.003,647.00166,882.53744.003,647.00166,022.38 0.000.000.00861,075.004,242,501.00178,204,428.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Byron Unit 2 DOCKET:455 OPERATING DATA REPORTPREPARER NAME:David EderPREPARER TELEPHONE:815 406-2194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1125720.004,367.00167,602.53720.004,367.00166,742.38 0.000.000.00828,914.005,071,415.00179,033,342.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Callaway Unit 1 DOCKET:483 OPERATING DATA REPORTPREPARER NAME:D. TrokeyPREPARER TELEPHONE:573-676-4489 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12282. Maximum Dependable Capacity (MWe-Net)1190720.002,903.00183,017.35720.002,903.00180,790.66 0.000.000.00879,766.003,558,417.00202,135,078.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Callaway Plant downpowered on 4/4/08 to approximately 94% for approximately 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months to perform a retest of an ATMS Steam Dump. On 4/15/08 Callaway Plant load was reduced to 95% power for approximately 5.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months to allow for maintenaince work to repair a Heater Drain Pump Discharge level valve.

Callaway Plant operated at approximately 100% power for the remainder of the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Callaway Unit 1 DOCKET:483 OPERATING DATA REPORTPREPARER NAME:D. TrokeyPREPARER TELEPHONE:573-676-4489 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12282. Maximum Dependable Capacity (MWe-Net)1190744.003,647.00183,761.35744.003,647.00181,534.66 0.000.000.00904,505.004,462,922.00203,039,583.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On 5/31/2008 Callaway Plant downpowered to approximately 96 percent for approximately 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , to perform Turbine Valve Testing. Callaway plant operated at approximately 100% power for the remainder of May 2008.

RPT_PERIOD:200806UNIT_NME:Callaway Unit 1 DOCKET:483 OPERATING DATA REPORTPREPARER NAME:D.E. TrokeyPREPARER TELEPHONE:573-676-4489 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12282. Maximum Dependable Capacity (MWe-Net)1190720.004,367.00184,481.35720.004,367.00182,254.66 0.000.000.00861,545.005,324,467.00203,901,128.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On June 3, 2008 Callaway plant downpowered to 99.4% power to perform Slave relay test for approximately 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months . The plant remained at approximately 100% power for the remainder of June 2008.

RPT_PERIOD:200804UNIT_NME:Calvert Cliffs Unit 1 DOCKET:317 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)870720.002,447.38227,542.11720.002,394.90224,131.88 0.000.000.00637,896.002,091,660.00185,487,939.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month at 94% power while returning to 100% power from a forced outage due to a steam leak on valve 1FW1503. Power was restored to 100% at 0449 04/01/2008.

The unit operated at 100% power for the remainder of the month.

RPT_PERIOD:200805UNIT_NME:Calvert Cliffs Unit 1 DOCKET:317 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)870744.003,191.38228,286.11744.003,138.90224,875.88 0.000.000.00654,157.002,745,817.00186,142,096.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% power for the entire month.

RPT_PERIOD:200806UNIT_NME:Calvert Cliffs Unit 1 DOCKET:317 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)870720.003,911.38229,006.11720.003,858.90225,595.88 0.000.000.00617,317.003,363,134.00186,759,413.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month at 100% power.On 06/06/2008 at 2258 power was reduced to approximately 85% for Main Turbine Valve Testing. When testing was complete, power was increased and reached 100% on 06/07/2008 at 0200.

The unit operated at 100% power for the remainder of the month.

RPT_PERIOD:200804UNIT_NME:Calvert Cliffs Unit 2 DOCKET:318 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)858720.002,903.00221,212.71720.002,903.00219,245.76 0.000.000.00624,526.002,532,071.00182,082,102.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no shutdowns this month. The unit operated at 100% power for the entire month.

RPT_PERIOD:200805UNIT_NME:Calvert Cliffs Unit 2 DOCKET:318 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)858744.003,647.00221,956.71744.003,647.00219,989.76 0.000.000.00637,952.003,170,023.00182,720,054.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month at 100% power.On 05/30/2008 at 2004 power was reduced to 86% for Main Turbine Valve Testing. When testing was complete, power was reduced to 65% to perform Steam Generator Feed Pump (SGFP) Oil Pump testing. Pump testing was completed on 05/31/2008 at 0105 and power was increased to 100% at 0420.

The unit operated at 100% power for the remainder of the month.

RPT_PERIOD:200806UNIT_NME:Calvert Cliffs Unit 2 DOCKET:318 OPERATING DATA REPORTPREPARER NAME:Herman O. OlsenPREPARER TELEPHONE:410-495-6734 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8452. Maximum Dependable Capacity (MWe-Net)858720.004,367.00222,676.71720.004,367.00220,709.76 0.000.000.00612,273.003,782,296.00183,332,327.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% power for the entire month.

RPT_PERIOD:200804UNIT_NME:Catawba Unit 1 DOCKET:413 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:803.701.3445 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)1129720.002,903.00170,042.89720.002,903.00168,097.23 0.000.000.00836,867.003,382,937.00187,553,400.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 1 began the month of April 2008 operating at or near 100% Full Power. At 2023 on 4/30/08, power reduction from 100% Full Power was commenced for performance of Main Steam Safety Valve testing. Unit 1 concluded the month at 95% Full Power, with power reduction (to target of 94% Full Power) in progress.

RPT_PERIOD:200805UNIT_NME:Catawba Unit 1 DOCKET:413 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:803.701.3445 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)112953.282,956.28170,096.1753.002,956.00168,150.23 0.000.000.0049,955.003,432,892.00187,603,355.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 1 began the month of May 2008 at 95% Full Power, with power reduction (for performance of Main Steam Safety Valve testing) in progress. The power reduction was halted at 93.5% Full Power at 0120 on 5/1/08. At 2035 on 5/1/08, following completion of MSSV testing, power escalation was commenced from 93.5% Full Power. 100% Full Power was subsequently reached at 0213 on 5/2/08. At 2100 on 5/2/08, power reduction was commenced from 100% Full Power to shut the unit down for the Unit 1 End of Cycle 17 (1EOC17) Refueling Outage. At 0500 on 5/3/08 the Main Turbine/Generator was taken off line at a power level of 10% Full Power.

Mode 2 was subsequently entered at 0508, as the unit reached 5% Full Power. At 0512 on 5/3/08, the power reduction was completed at 0% Full Power. Mode 3 was entered at 0517 with Mode 4 subsequently entered at 1102. Mode 5 was entered at 1606 on 5/3/08. At 0451 on 5/7/08, the unit entered Mode 6. No Mode was subsequently entered with the completion of total core unloading at 0025 on 5/13/08. At 1426 on 5/29/08, the unit entered Mode 6 for core reloading. Unit 1 remained in Mode 6 for the remainder of the month. 15/3/2008S 691.00C11EOC17 Refueling Outage RPT_PERIOD:200806UNIT_NME:Catawba Unit 1 DOCKET:413 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:Adrienne Driver UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)1129270.753,227.03170,366.92237.433,193.43168,387.66 0.000.000.00230,023.003,662,915.00187,833,378.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 1 began the month of June 2008 in Mode 6, with the End-of-Cycle 17 Refueling Outage in progress. Mode 5 was entered at 2344 on 6/8/08. Mode 4 was entered at 1536 on 6/13/08. Mode 3 was entered at 1347 on 6/14/08. Following discovery of a leaking Reactor Vessel Head CONOSEAL, cooldown and depressurization of the Reactor Coolant System was initiated. Mode 4 was entered at 1200, followed by Mode 5 entry at 1713 on 6/15/08. Following CONOSEAL leak repair, Mode 4 was entered at 0540, with Mode 3 subsequently entered at 1645 on 6/18/08. Cycle 18 Reactor Startup was commenced (Mode 2 entered) at 0816 on 6/19/08. The approach to criticality was aborted, and the unit returned to Mode 3 at 1022 on 6/19/08 due to failure of the Reactor Coolant Makeup totalizer to indicate properly during efforts to achieve criticality via Reactor Coolant System dilution. The Makeup Totalizer issue was resolved and Reactor Startup re-commenced (Mode 2 entered) at 1643 on 6/19/08. Criticality was achieved at a rod position of 190 Steps Withdrawn (Control Bank D) and a critical boron concentration of 2000 ppmB at 1715 on 6/19/08. At 2327 (following completion of Zero Power Physics Testing), power escalation was commenced from 0% Full Power, and suspended at 1% Full Power at 0000 on 6/20/08. Power escalation was resumed from 1% Full Power at 0013, with Mode 1 subsequently entered at 0154 on 6/20/08. Power escalation was halted at 10% Full Power at 0312 on 6/20/08 for Main Generator Automatic Voltage Regulator (AVR) testing. The Turbine/Generator was placed on line at 0019, with power escalation subsequently commenced at 0020 on 6/21/08. At 0212 on 6/21/08, power escalation was halted at 17% Full Power for required Main Turbine Overspeed Trip Test soaking. At 0729 on 6/21/08, the Turbine/Generator was removed from service for performance of Main Turbine Overspeed Trip testing. The Turbine/Generator was placed back on line at 0944, and power escalation commenced from 17% Full Power at 1004 on 6/21/08. At 1021, power escalation was suspended at 19% Full Power pending completion of swap to Main Feedwater nozzles, and was resumed at 1057. At 1918, power escalation was suspended at 50% Full Power pending placement of the second Main Feedwater Pump into service, and was resumed at 1944. At 2126, power escalation was suspended at 53% Full Power for performance of Main Turbine Valve Movement testing, and was resumed at 2255 on 6/21/08. Power escalation was halted at 1032 on 6/22/08 at 76% Full Power for performance of 1BOC18 Power Ascension Testing (core flux mapping) and Main Turbine Control Valve Movement testing. Power escalation was commenced from 76% Full Power at 0123 on 6/23/08. At 0726 on 6/23/08, power escalation was halted at 88% Full Power for performance of Main Turbine Control Valve Movement testing. Power escalation was commenced from 88% Full Power at 0052, and halted at 98% Full Power at 0516 on 6/24/08, for adjustment of Reactor Coolant System Loop Full Power Delta-Temperature constants. Power Escalation was commenced from 98% Full Power at 2251 on 6/24/08. 100% Full Power was ultimately reached at 0132 on 6/25/08, and Unit 1 operated at or near 100% Full Power for the remainder of the month.15/3/2008S 480.32C41EOC17 Refueling Outage26/21/2008S 2.25B51EOC17 Refueling Outage - Main Turbine Overspeed Trip testing RPT_PERIOD:200804UNIT_NME:Catawba Unit 2 DOCKET:414 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:803.701.3445 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)1129720.002,903.00162,385.79720.002,903.00160,772.55 0.000.000.00838,806.003,396,298.00179,760,751.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 2 began and concluded the month of April 2008 operating at or near 100% Full Power. No planned or unplanned power reductions were incurred during the month.

RPT_PERIOD:200805UNIT_NME:Catawba Unit 2 DOCKET:414 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:803.701.3445 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)1129744.003,647.00163,129.79744.003,647.00161,516.55 0.000.000.00859,549.004,255,847.00180,620,300.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 2 began the month of May 2008 operating at or near 100% Full Power. At 2130 on 5/16/08, power reduction from 100% Full Power was commenced for performance of Main Turbine Control Valve Movement periodic testing. Power reduction was halted at 85% Full Power at 2253 on 5/16/08. At 2355 on 5/16/08 power escalation was commenced from 85% Full Power. 100% Full Power was ultimately reached at 0218 on 5/17/08, and Unit 2 operated at or near 100% Full Power for the remainder of the month.

RPT_PERIOD:200806UNIT_NME:Catawba Unit 2 DOCKET:414 OPERATING DATA REPORTPREPARER NAME:Adrienne DriverPREPARER TELEPHONE:803.701.3445 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11452. Maximum Dependable Capacity (MWe-Net)1129720.004,367.00163,849.79720.004,367.00162,236.55 0.000.000.00824,660.005,080,507.00181,444,960.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Catawba Unit 2 began and concluded the month of June 2008 operating at or near 100% Full Power. No planned or unplanned power reductions were incurred during the month.

RPT_PERIOD:200804UNIT_NME:Clinton Unit 1 DOCKET:461 OPERATING DATA REPORTPREPARER NAME:Gary MosleyPREPARER TELEPHONE:217-937-3326 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10622. Maximum Dependable Capacity (MWe-Net)1022720.002,313.59133,181.65720.002,279.72130,605.08 0.000.004.00774,981.002,369,847.00121,006,717.48This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Clinton Unit 1 DOCKET:461 OPERATING DATA REPORTPREPARER NAME:Gary MosleyPREPARER TELEPHONE:217-937-3326 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10622. Maximum Dependable Capacity (MWe-Net)1022744.003,057.59133,925.65744.003,023.72131,349.08 0.000.004.00798,410.003,168,257.00121,805,127.48This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Forced Loss MWe were due to an unplanned downpower to perform MSIV Surveillance.

RPT_PERIOD:200806UNIT_NME:Clinton Unit 1 DOCKET:461 OPERATING DATA REPORTPREPARER NAME:Gary MosleyPREPARER TELEPHONE:217-937-3326 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10622. Maximum Dependable Capacity (MWe-Net)1022720.003,777.59134,645.65720.003,743.72132,069.08 0.000.004.00770,357.003,938,614.00122,575,484.48This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Columbia Gen Sta Unit 2 DOCKET:397 OPERATING DATA REPORTPREPARER NAME:Nick ColemanPREPARER TELEPHONE:509-377-4538 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11532. Maximum Dependable Capacity (MWe-Net)1107720.002,903.00161,956.44720.002,903.00158,128.39 0.000.003,274.70802,816.383,212,040.95160,740,386.49This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Columbia Generating Station operated at ~100% power throughout the month of April.

RPT_PERIOD:200805UNIT_NME:Columbia Gen Sta Unit 2 DOCKET:397 OPERATING DATA REPORTPREPARER NAME:Nick ColemanPREPARER TELEPHONE:509-377-4538 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11532. Maximum Dependable Capacity (MWe-Net)1107744.003,647.00162,700.44744.003,647.00158,872.39 0.000.003,274.70751,933.633,963,974.58161,492,320.12This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Columbia Generating Station entered the month of May at 100%. At 09:28 on 22-May, the unit downpowered to 81% due to high level trips of feedwater heaters; it stayed at 81% until the start of Economic Dispatch on 23-May. In addition the following power changes due to Economic Dispatch at the request of BPA: (1) 17:54, 23-May to 45%; 11:22, 27-May returned to 100%; (2) 22:00, 28-May to 85%; 10:38, 29-May returned to 100%; (3) 22:00, 29-May to 85%; 07:54, 30-May returned to 100%; (4) 22:01, 30-May to 65%; 12:42, 2-Jun returned to 100%.

Note: Dispatch Credit earned = 49,142.06 MWHrs.

RPT_PERIOD:200806UNIT_NME:Columbia Gen Sta Unit 2 DOCKET:397 OPERATING DATA REPORTPREPARER NAME:Nick ColemanPREPARER TELEPHONE:509-377-4538 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11532. Maximum Dependable Capacity (MWe-Net)1107720.004,367.00163,420.44720.004,367.00159,592.39 0.000.003,274.70712,651.824,676,626.40162,204,971.94This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Columbia Generating Station entered the month of June at 65% in Economic Dispatch. Every night in June at ~22:00 the plant down powered, at BPA's request, for Economic Dispatch to 85%; then the following morning return to 100%. The only exceptions to this pattern were at 21:40 on 6-Jun-08; the unit down powered to 18% in support of the RRC-P-1A repair. On 8-Jun-08, power was raised and maintained at 50% at request of BPA for Economic Dispatch. On the 9-Jun-08, the unit was returned to the nightly Economic Dispatch to 85%, returning each morning to 100%. The rest of June followed this pattern.

Note: Dispatch Credit earned = 76,225.65 MWHrs.

RPT_PERIOD:200804UNIT_NME:Comanche Peak Unit 1 DOCKET:445 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-5455 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150720.002,853.65138,212.53720.002,847.18137,244.23 0.000.000.00843,447.003,323,882.00149,439,666.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month at 100% reactor, 1220 MWe turbine power. Unit 1 ended the month at 100% reactor, 1219 MWe turbine power.

RPT_PERIOD:200805UNIT_NME:Comanche Peak Unit 1 DOCKET:445 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-5455 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150744.003,597.65138,956.53744.003,591.18137,988.23 0.000.000.00869,240.004,193,122.00150,308,906.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month at 100% reactor, 1219 MWe turbine power. Unit 1 ended the month at 100% reactor, 1212 MWe turbine power.

RPT_PERIOD:200806UNIT_NME:Comanche Peak Unit 1 DOCKET:445 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-5455 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150720.004,317.65139,676.53720.004,311.18138,708.23 0.000.000.00836,727.005,029,849.00151,145,633.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month at 100% reactor, 1212 MWe turbine power. On 06/13/08 at 2254, Unit 1 commenced activities for a planned power reduction to conduct OPT-217, routine main turbine stop and control valve testing. At 2300, a control rod urgent failure was received when the control rods attempted to move during the boration evolution. At 2321, power was stabilized at 94.5% reactor, 1138 MWe turbine. On 06/14/08 at 0016, the OPT-217 testing activities were suspended and Unit 1 began returning to 100% reactor power to stabilize plant conditions while the rod control urgent failure was investigated and corrected. At 0200, Unit 1 returned to 100% reactor power. At 1553, the rod control system was tested after repair and operability restored. On 06/28/08 at 1904, the Unit 1 Turbine Driven Auxiliary Feedwater Pump (TDAFWP) automatically started when the TDAFWP steam supply valve, 1-HV-2452-1 failed open due to a failed actuator diaphragm. Control Room operators lowered power from 100% to about 95% power, 1150 MWe turbine power per station procedures. at 1948, the TDAFWP steam supply valve was manully iso lated and the unit commenced return to 100% reactor power. At 2120, Unit 1 returned to 100% reactor power operation. On 06/29/08 at 1007, the TDAFWP steam supply valve was tested after repair and restored to operability. Unit 1 ended the month at 100% reactor, 1206 MWe turbine power.

RPT_PERIOD:200804UNIT_NME:Comanche Peak Unit 2 DOCKET:446 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-5455 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150289.082,386.83117,053.62272.002,360.78116,431.60 0.000.000.00279,814.002,723,398.00128,890,119.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month shutdown in MODE 5, refueling outage 2RF10 in progress. On 04/01/08 at 0830, Unit 2 entered MODE 6. On 04/03/08 at 1030, commenced core offload. On 04/05/08 at 2037, completed core offload and entered defueled condition. On 04/08/08 at 0241 Unit 2 enterred MODE 6, commencing core reload. On 04/14/08 at 0720, Unit 2 entered MODE 5. On 04/17/08 at 0809, Unit 2 entered MODE 4. On 04/17/08 at 2105, Unit 2 entered MODE 3. On 04/18/08 at 1930, Unit 2 entered MODE 2. On 04/18/08 at 2255, Unit 2 reactor is critical. on 04/19/08 at 1148, Unit 2 entered MODE 1. On 04/19/08 at 1600, Unit 2 synchronized to the grid ending refueling outage 2RF10 in about 21 days. On 04/23/08 at 0318, Unit 2 attained 100% reactor, 1219 MWe turbine power. On 04/26/08 at 1800, control room operators manually ranback the turbine to 1100 MWe per station procedures, when the moisture separator reheater, reheater drain tank 2B1 normal level control valve, controller 2-LK-2704 failed. The controller was repaired and Unit 2 returned to full power in about 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . Unit 2 ended the month at 100% reactor, 1219 MWE.2-08-23/29/2008S 448.00C4Planned refueling outage, 2RF10.

RPT_PERIOD:200805UNIT_NME:Comanche Peak Unit 2 DOCKET:446 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-2301 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150744.003,130.83117,797.62744.003,104.78117,175.60 0.000.000.00869,640.003,593,038.00129,759,759.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month at 99.5% reactor, 1219 turbine power. Unit 2 ended the month at 100% reactor, 1209 MWe turbine power.

RPT_PERIOD:200806UNIT_NME:Comanche Peak Unit 2 DOCKET:446 OPERATING DATA REPORTPREPARER NAME:G.D. LytlePREPARER TELEPHONE:254-897-5455 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1150720.003,850.83118,517.62720.003,824.78117,895.60 0.000.000.00837,576.004,430,614.00130,597,335.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month at 100% reactor, 1209 MWe turbine power. On 06/16/08 at 1355, a small negative reactivity addition was observed when the Positive Displacement Charging Pump (PDP) was started for post-maintenance testing. Control Room operators lowered turbine power 6 MWe to about 99.5 % reactor power to compensate. The boron concentration in the PDP portion of the system was at an unexpectedly higher concentration that the reactor cooolant system when the pump was started. At 1650, Unit 1 returned to 100% reactor, 1205 MWe turbine power. Unit 2 ended the month at 100% reactor, 1208 MWe turbine power.

RPT_PERIOD:200804UNIT_NME:Cook Unit 1 DOCKET:315 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10842. Maximum Dependable Capacity (MWe-Net)103033.532,039.83208,634.3225.571,979.90205,675.82 0.000.00321.007,206.002,089,978.00195,371,423.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

U1C22 Refueling Outage began with generator offline: March 26, 2008 @ 00:15 (Rx still online for turbine test). Rx offline on March 26, 2008 @ 00:31. Rx critical on April 29, 2008 @ 14:28. Synch to grid on April 29, 2008 @ 22:26.3593/26/2008S 694.43C4U1C22 Refueling Outage began 03/26/08 @ 0015 hours1.736111e-4 days 0.00417 hours 2.480159e-5 weeks 5.7075e-6 months . Synch to grid on 4/29/08 @ 2226 hours0.0258 days 0.618 hours 0.00368 weeks 8.46993e-4 months .

RPT_PERIOD:200805UNIT_NME:Cook Unit 1 DOCKET:315 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10842. Maximum Dependable Capacity (MWe-Net)1030744.002,783.83209,378.32744.002,723.90206,419.82 0.000.00321.00792,104.002,882,082.00196,163,527.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

None RPT_PERIOD:200806UNIT_NME:Cook Unit 1 DOCKET:315 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10842. Maximum Dependable Capacity (MWe-Net)1030720.003,503.83210,098.32720.003,443.90207,139.82 0.000.00321.00747,680.003,629,762.00196,911,207.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

None RPT_PERIOD:200804UNIT_NME:Cook Unit 2 DOCKET:316 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11072. Maximum Dependable Capacity (MWe-Net)1077720.002,903.00182,545.86720.002,903.00178,495.07 0.000.000.00792,662.003,206,168.00178,938,355.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

None.

RPT_PERIOD:200805UNIT_NME:Cook Unit 2 DOCKET:316 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11072. Maximum Dependable Capacity (MWe-Net)1077744.003,647.00183,289.86723.533,626.53179,218.60 0.000.000.00783,746.003,989,914.00179,722,101.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Maintenance Shutdown to correct turbine intercept valve problem (Rx Stayed Online). Generator went offline on 5/17/08 @ 0806 hours0.00933 days 0.224 hours 0.00133 weeks 3.06683e-4 months and synched to the grid on 5/18/08 @ 0434 hours0.00502 days 0.121 hours 7.175926e-4 weeks 1.65137e-4 months .2275/17/2008S 20.47B5Maintenance Shutdown to correct turbine intercept valve problem (Rx Stayed Online). Generator went offline on 5/17/08 @ 0806 hours0.00933 days 0.224 hours 0.00133 weeks 3.06683e-4 months and synched to the grid on 5/18/08 @ 0434 hours0.00502 days 0.121 hours 7.175926e-4 weeks 1.65137e-4 months .

RPT_PERIOD:200806UNIT_NME:Cook Unit 2 DOCKET:316 OPERATING DATA REPORTPREPARER NAME:Sarah GelwicksPREPARER TELEPHONE:269-465-5901 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11072. Maximum Dependable Capacity (MWe-Net)1077720.004,367.00184,009.86720.004,346.53179,938.60 0.000.000.00776,774.004,766,688.00180,498,875.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

None RPT_PERIOD:200804UNIT_NME:Cooper Unit 1 DOCKET:298 OPERATING DATA REPORTPREPARER NAME:Grant ReynoldsPREPARER TELEPHONE:816-825-2726 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7782. Maximum Dependable Capacity (MWe-Net)757264.872,447.87234,224.27264.672,447.67231,138.07 0.000.000.00171,925.201,810,469.20159,609,893.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

No Outage information for this reporting period.08-014/12/2008S 455.33C1None RPT_PERIOD:200805UNIT_NME:Cooper Unit 1 DOCKET:298 OPERATING DATA REPORTPREPARER NAME:Grant ReynoldsPREPARER TELEPHONE:402-825-2726 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7782. Maximum Dependable Capacity (MWe-Net)757369.902,817.77234,594.17314.332,762.00231,452.40 0.000.000.00218,031.002,028,500.20159,827,924.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

No Outage information for this reporting period.08-014/12/2008S 429.67C4None RPT_PERIOD:200806UNIT_NME:Cooper Unit 1 DOCKET:298 OPERATING DATA REPORTPREPARER NAME:Grant ReynoldsPREPARER TELEPHONE:402-825-2726 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7782. Maximum Dependable Capacity (MWe-Net)757720.003,537.77235,314.17720.003,482.00232,172.40 0.000.000.00552,091.002,580,591.20160,380,015.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

No Outage information for this reporting period.

RPT_PERIOD:200804UNIT_NME:Crystal River Unit 3 DOCKET:302 OPERATING DATA REPORTPREPARER NAME:Louis BarbieriPREPARER TELEPHONE:(352) 563-2943 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8602. Maximum Dependable Capacity (MWe-Net)838720.002,437.73201,126.48720.002,425.45198,527.15 0.000.000.00628,613.552,075,428.25157,205,295.59This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Crystal River Unit 3 DOCKET:302 OPERATING DATA REPORTPREPARER NAME:Louis BarbieriPREPARER TELEPHONE:(352) 563-2943 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8602. Maximum Dependable Capacity (MWe-Net)838744.003,181.73201,870.48744.003,169.45199,271.15 0.000.000.00607,240.662,682,668.91157,812,536.25This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Crystal River Unit 3 DOCKET:302 OPERATING DATA REPORTPREPARER NAME:Louis BarbieriPREPARER TELEPHONE:(352) 563-2943 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8602. Maximum Dependable Capacity (MWe-Net)838720.003,901.73202,590.48720.003,889.45199,991.15 0.000.000.00619,993.873,302,662.78158,432,530.12This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Davis-Besse Unit 1 DOCKET:346 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8932. Maximum Dependable Capacity (MWe-Net)879720.001,972.55180,657.31720.001,826.17177,598.80 0.000.005,532.00637,980.001,598,526.10147,767,408.10This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On April 25, 2008, a planned power reduction to aproximately 61% power was conducted in order to repair Main Feedwater Pump #1 duplex strainer leak and other summer readiness maintenance issues. Following completion of the planned work, the reactor was returned to full power on April 27, 2008.

RPT_PERIOD:200805UNIT_NME:Davis-Besse Unit 1 DOCKET:346 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8932. Maximum Dependable Capacity (MWe-Net)879744.002,716.55181,401.31744.002,570.17178,342.80 0.000.005,532.00668,821.002,267,347.10148,436,229.10This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the month of May.

RPT_PERIOD:200806UNIT_NME:Davis-Besse Unit 1 DOCKET:346 OPERATING DATA REPORTPREPARER NAME:Lawrence CriscionePREPARER TELEPHONE:330-384-4693 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8932. Maximum Dependable Capacity (MWe-Net)879720.003,436.55182,121.31720.003,290.17179,062.80 0.000.005,532.00631,100.002,898,447.10149,067,329.10This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

A planned power reduction was conducted from June 6 to June 8, 2008, to approximately 60% power to support Main Feedwater Pump Turbine #1 Control Valve oscillation troubleshooting. An unplanned power reduction was conducted on June 19, 2008, to approximately 98% power to support High Pressure Feedwater Heater #6 level control valve repairs.

RPT_PERIOD:200804UNIT_NME:Diablo Canyon Unit 1 DOCKET:275 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1122720.002,903.00177,459.44720.002,903.00175,649.69 0.000.000.00821,028.003,294,272.00184,488,069.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon Unit 1 began and ended the month of April 2008 at approximately 100 percent power.

RPT_PERIOD:200805UNIT_NME:Diablo Canyon Unit 1 DOCKET:275 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1122744.003,647.00178,203.44744.003,647.00176,393.69 0.000.000.00794,846.004,089,118.00185,282,915.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon Unit 1 began and ended the month of May at approximately 100 percent reactor power.Unit 1 reduced power once during the month of May to approximately 50 percent reactor power to perform planned maintenance cleaning of the Pacific Ocean cooling water system components.

RPT_PERIOD:200806UNIT_NME:Diablo Canyon Unit 1 DOCKET:275 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1122720.004,367.00178,923.44720.004,367.00177,113.69 0.000.000.00819,292.004,908,410.00186,102,207.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon Unit 1 began and ended the month of June 2008 in Mode 1, Power Operations, at approximately 100 percent reactor power.

RPT_PERIOD:200804UNIT_NME:Diablo Canyon Unit 2 DOCKET:323 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)1118466.331,270.35172,890.56445.531,248.56171,153.41 0.000.000.00451,388.001,321,735.00181,499,279.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon began the month of April 2008 shutdown continuing the Unit 2 fourteenth refueling outage (2R14).On April 12, 2008, at 10:28 PDT Diablo Canyon Unit 2 closed the main generator output breaker ending 2R14.

Diablo Canyon Unit 2 ended the month of April 2008 at approximately 100 percent power.12/3/2008S 274.47C4Diablo Canyon Unit 2 shutdown and opened the main generator breaker to enter the fourteenth refueling outage.

Diablo Canyon Unit 2 started up and closed the main generator breaker to end the fourteenth refueling outage.

RPT_PERIOD:200805UNIT_NME:Diablo Canyon Unit 2 DOCKET:323 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)1118744.002,014.35173,634.56744.001,992.56171,897.41 0.000.000.00849,409.002,171,144.00182,348,688.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon Unit 2 began and ended the month of May at approximately 100 percent reactor power.

RPT_PERIOD:200806UNIT_NME:Diablo Canyon Unit 2 DOCKET:323 OPERATING DATA REPORTPREPARER NAME:Don MalonePREPARER TELEPHONE:805-545-4859 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)1118720.002,734.35174,354.56720.002,712.56172,617.41 0.000.000.00818,956.002,990,100.00183,167,644.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Diablo Canyon Unit 2 began and ended the month of June 2008 in Mode 1, Power Operations, at approximately100 percent reactor power.

RPT_PERIOD:200804UNIT_NME:Dresden Unit 2 DOCKET:237 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850720.002,903.00259,259.59720.002,903.00250,186.95 0.000.004.00626,258.002,523,173.00173,981,753.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On April 26, at approximately 0100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months , load was reduced to approximately 90% electrical output to perform control rod drive troubleshooting and maintenance. The unit returned to full power operation at approximately 0500 hours0.00579 days 0.139 hours 8.267196e-4 weeks 1.9025e-4 months .

With the exception of short periods for routine maintenance and surveillances, Unit 2 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200805UNIT_NME:Dresden Unit 2 DOCKET:237 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850744.003,647.00260,003.59744.003,647.00250,930.95 0.000.004.00646,373.003,169,546.00174,628,126.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On May 31, at approximately 2200 hours0.0255 days 0.611 hours 0.00364 weeks 8.371e-4 months , load was reduced to approximately 77% electrical output to perform turbine valve testing, control rod drive scram time testing, a control rod pattern adjustment, and various other activities. The unit remained at this power level for the remainder of the month.

With the exception of short periods for routine maintenance and surveillances, Unit 2 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200806UNIT_NME:Dresden Unit 2 DOCKET:237 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850720.004,367.00260,723.59720.004,367.00251,650.95 0.000.004.00623,525.003,793,071.00175,251,651.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month at reduced power to perform turbine valve testing, control rod drive scram time testing, a control rod pattern adjustment, and various other activities. The unit returned to full power operation on June 1 at approximately 1300 hours0.015 days 0.361 hours 0.00215 weeks 4.9465e-4 months .

With the exception of short periods for routine maintenance and surveillances, Unit 2 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200804UNIT_NME:Dresden Unit 3 DOCKET:249 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850720.002,703.75246,965.83720.002,678.95238,686.31 0.000.001.00626,589.002,316,743.00166,843,318.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On April 12, at approximately 0200 hours0.00231 days 0.0556 hours 3.306878e-4 weeks 7.61e-5 months , load was reduced to approximately 77% electrical output to perform a repair on the LVDT of turbine control valve #3. The unit returned to full power operation at approximately 0500 hours0.00579 days 0.139 hours 8.267196e-4 weeks 1.9025e-4 months .

With the exception of short periods for routine maintenance and surveillances, Unit 3 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200805UNIT_NME:Dresden Unit 3 DOCKET:249 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850744.003,447.75247,709.83744.003,422.95239,430.31 0.000.001.00646,154.002,962,897.00167,489,472.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On May 3, at approximately 2200 hours0.0255 days 0.611 hours 0.00364 weeks 8.371e-4 months , load was reduced to approximately 70% electrical output to perform turbine valve testing, control rod drive scram time testing, a control rod pattern adjustment, and various other activities. The unit returned to full power operation on May 4 at approximately 0700 hours0.0081 days 0.194 hours 0.00116 weeks 2.6635e-4 months .

With the exception of short periods for routine maintenance and surveillances, Unit 3 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200806UNIT_NME:Dresden Unit 3 DOCKET:249 OPERATING DATA REPORTPREPARER NAME:Joseph RedaPREPARER TELEPHONE:(815) 416-3081 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8672. Maximum Dependable Capacity (MWe-Net)850720.004,167.75248,429.83720.004,142.95240,150.31 0.000.001.00625,365.003,588,262.00168,114,837.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On June 28, at approximately 0100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months , load was reduced to approximately 84% electrical output to perform a control rod pattern adjustment. The unit returned to full power operation at approximately 0400 hours0.00463 days 0.111 hours 6.613757e-4 weeks 1.522e-4 months .

With the exception of short periods for routine maintenance and surveillances, Unit 3 operated at full power for the remainder of the reporting period.

RPT_PERIOD:200804UNIT_NME:Duane Arnold Unit 1 DOCKET:331 OPERATING DATA REPORTPREPARER NAME:Wendell HorstPREPARER TELEPHONE:319 851-7359 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:613.52. Maximum Dependable Capacity (MWe-Net)593720.002,903.00237,550.99720.002,903.00232,932.70 0.000.00192.80440,061.101,777,508.45112,820,704.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Duane Arnold Unit 1 DOCKET:331 OPERATING DATA REPORTPREPARER NAME:Wendell HorstPREPARER TELEPHONE:319 851-7359 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:613.52. Maximum Dependable Capacity (MWe-Net)593744.003,647.00238,294.99744.003,647.00233,676.70 0.000.00192.80450,926.832,228,435.28113,271,631.13This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Duane Arnold Unit 1 DOCKET:331 OPERATING DATA REPORTPREPARER NAME:Wendell J. HorstPREPARER TELEPHONE:319 851-7359 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:613.52. Maximum Dependable Capacity (MWe-Net)593720.004,367.00239,014.99720.004,367.00234,396.70 0.000.00192.80425,093.102,653,528.38113,696,724.23This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Farley Unit 1 DOCKET:348 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8542. Maximum Dependable Capacity (MWe-Net)851720.002,903.00223,566.07720.002,903.00221,003.28 0.000.000.00621,428.002,510,351.00177,463,895.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no significant power reductions this period.

RPT_PERIOD:200805UNIT_NME:Farley Unit 1 DOCKET:348 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8542. Maximum Dependable Capacity (MWe-Net)851744.003,647.00224,310.07744.003,647.00221,747.28 0.000.000.00638,016.003,148,367.00178,101,911.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no significant power reductions this period.

RPT_PERIOD:200806UNIT_NME:Farley Unit 1 DOCKET:348 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8542. Maximum Dependable Capacity (MWe-Net)851720.004,367.00225,030.07720.004,367.00222,467.28 0.000.000.00616,414.003,764,781.00178,718,325.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no significant power reductions this period.

RPT_PERIOD:200804UNIT_NME:Farley Unit 2 DOCKET:364 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8552. Maximum Dependable Capacity (MWe-Net)860720.002,903.00206,955.17720.002,903.00204,758.13 0.000.000.00600,555.002,506,277.00166,184,997.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

At 1334 on April 14, Unit 2 began derating to approximately 59.2% due to 2B steam generator feed pump trip. The unit returned to 100% power at 1350 on April 17.

RPT_PERIOD:200805UNIT_NME:Farley Unit 2 DOCKET:364 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8552. Maximum Dependable Capacity (MWe-Net)860744.003,647.00207,699.17744.003,647.00205,502.13 0.000.000.00645,890.003,152,167.00166,830,887.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no significant power reductions this period.

RPT_PERIOD:200806UNIT_NME:Farley Unit 2 DOCKET:364 OPERATING DATA REPORTPREPARER NAME:Mandy M. LudlamPREPARER TELEPHONE:334-899-5156 ext. 2449 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8552. Maximum Dependable Capacity (MWe-Net)860720.004,367.00208,419.17720.004,367.00206,222.13 0.000.000.00621,764.003,773,931.00167,452,651.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no significant power reductions this period.

RPT_PERIOD:200804UNIT_NME:Fermi Unit 2 DOCKET:341 OPERATING DATA REPORTPREPARER NAME:E. SorgPREPARER TELEPHONE:734-586-4294 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1087720.002,855.31141,567.82720.002,827.15137,198.92 0.000.000.00801,333.003,145,736.00140,810,915.92This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% reactor power (excluding minor changes for surveillance testing) the entire month with no exceptions.

RPT_PERIOD:200805UNIT_NME:Fermi Unit 2 DOCKET:341 OPERATING DATA REPORTPREPARER NAME:E. Sorg PREPARER TELEPHONE:734-586-4294 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1087744.003,599.31142,311.82744.003,571.15137,942.92 0.000.000.00823,695.003,969,431.00141,634,610.92This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% reactor power (with the exception of minor power changes for testing) the entire month of May with the following exceptions:

--5/11/2008 0030 to 0503: Planned downpower to 92% for HPSV/HPCV testing.

--5/29/2008 2258 to 5/30/2008 0005: Planned downpower to 95% for CRDM maintenance.

--5/31/2008 2200 to 6/1/2008 1738: Planned downpower to 82% for pump swaps and rod pattern adjustment.

RPT_PERIOD:200806UNIT_NME:Fermi Unit 2 DOCKET:341 OPERATING DATA REPORTPREPARER NAME:Eric T. SorgPREPARER TELEPHONE:734-586-4294 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11502. Maximum Dependable Capacity (MWe-Net)1087720.004,319.31143,031.82720.004,291.15138,662.92 0.000.000.00782,492.004,751,923.00142,417,102.92This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% reactor power (with the exception of minor power changes for testing) the entire month with the following exceptions:6/1/2008 0000 to 1544: Continuation of planned downpower to 82% reactor power for rod pattern adjustment and equipment swaps.

6/15/2008 0003 to 6/16/2008 1800: Unplanned downpower to 99.5% reactor power due to DCS power supply failure.

6/19/2008 0939 to 1010: Planned downpower to 99% reactor power for RRMG Set A isolator replacement.

RPT_PERIOD:200804UNIT_NME:FitzPatrick Unit 1 DOCKET:333 OPERATING DATA REPORTPREPARER NAME:Mick BakerPREPARER TELEPHONE:315-349-6181 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8162. Maximum Dependable Capacity (MWe-Net)813681.532,864.53225,846.76663.222,846.22220,237.38 0.000.000.00523,100.002,366,743.00167,460,543.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On April 4th at 09:02 the plant entered a downpower to perform repairs on the A Reactor Feed Pump Seal. While performing repairs the plant entered a forced shutdown due to a steam leak on a weld in the feedwater system. The generator was taken offline on April 5th at 03:16 and had all Rods in at 07:20. The plant went critical on April 6th at 21:48 and came back online on April 7th at 12:03 and returned to full power on April 13th at 16:48. On April 20th the plant reduced power to 94% to perform control rod testing. The plant returned to 100% power at 09:21. On April 27th at 08:00 the plant reduced power to 80% power to perform a control rod adjustment. The plant returned to 100% power at 20:54.FO-1864/5/2008F 56.78A1Shutdown due to steam leak on weld.

RPT_PERIOD:200805UNIT_NME:FitzPatrick Unit 1 DOCKET:333 OPERATING DATA REPORTPREPARER NAME:Mick BakerPREPARER TELEPHONE:315-349-6181 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8162. Maximum Dependable Capacity (MWe-Net)813744.003,608.53226,590.76744.003,590.22220,981.38 0.000.000.00599,707.002,966,450.00168,060,250.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On May 4th at 21:01 the plant performed a planned downpower to 55% to repair the A Reactor Feed Pump Seal. The plant returned to full power on May 8th at 13:07. On May 10th at 00:18 the plant performed a downpower to 75% power to perform a control rod adjustment. The plant returned to full power on May 10th at 23:22. On May 18th at 08:00 the plant performed a downpower to 93 % to perform control rod testing. On May 20th at 09:16 the plant started a down power to 80% power to perform Increase Core Flow Testing. The core flow testing continued at slightly reduced power. The plant returned to 100% power on May 23 at 22:05. On May 25th the plant performed a downpower to 93% power to perform control rod testing.

RPT_PERIOD:200806UNIT_NME:FitzPatrick Unit 1 DOCKET:333 OPERATING DATA REPORTPREPARER NAME:Mick BakerPREPARER TELEPHONE:315-349-6181 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8162. Maximum Dependable Capacity (MWe-Net)813720.004,328.53227,310.76720.004,310.22221,701.38 0.000.000.00604,352.003,570,802.00168,664,602.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On June 1st at 08:05 the plant performed a dowpower to 78 % to perform a control rod adjustment. The plant returned to full power at 23:48. On June 8th at 08:05 the plant performed a downpower to 94% power to perform control rod testing. The plant returned to full power at 09:14. On June 15 the plant performed a downpower to 80% power to perform a sequence exchange. The plant returned to full power at 23:49. On June 22 at 08:08 the plant reduced power to 94% power to perform control rod testing. The plant returned to full power at 09:40. On June 29th at 08:05 the plant performed a dowpower to 75% power to perform a control rod adjustment. The plant returned to full power on June 30th at 19:04.

RPT_PERIOD:200804UNIT_NME:Fort Calhoun Unit 1 DOCKET:285 OPERATING DATA REPORTPREPARER NAME:E. P. MatzkePREPARER TELEPHONE:402-533-6855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5022. Maximum Dependable Capacity (MWe-Net)482453.582,461.63247,516.66453.582,453.23246,073.31 0.000.000.00220,184.601,207,888.40108,204,654.70This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Fort Calhoun Station operated at a nominal 100% power until April 15 when power was reduced to 50% to repair a feedwater pump. Power was restored to 100% on April 17 following the repairs. The plant operated at 100% until April 19 when the plant was shutdown for a refueling outage.2008-024/19/2008S 266.42C1Plant shutdown to commence refueling outage.

RPT_PERIOD:200805UNIT_NME:Fort Calhoun Unit 1 DOCKET:285 OPERATING DATA REPORTPREPARER NAME:E. P. MatzkePREPARER TELEPHONE:402-533-6855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5022. Maximum Dependable Capacity (MWe-Net)4820.002,461.63247,516.660.002,453.23246,073.31 0.000.000.000.001,207,888.40108,204,654.70This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The refueling outage continued through the month.2008-024/19/2008S 744.00C4Plant shutdown to commence refueling outage.

RPT_PERIOD:200806UNIT_NME:Fort Calhoun Unit 1 DOCKET:285 OPERATING DATA REPORTPREPARER NAME:E. P. MatzkePREPARER TELEPHONE:402-533-6855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5022. Maximum Dependable Capacity (MWe-Net)482344.972,806.60247,861.63326.782,780.01246,400.09 0.000.000.00123,486.301,331,374.70108,328,141.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The plant was returned to operation on June 17, 2008. The plant reached a nominal 100% power on June 20, 2008, and has operated there since.2008-024/19/2008S 393.22C4Plant shutdown to commence refueling outage.

RPT_PERIOD:200804UNIT_NME:Ginna Unit 1 DOCKET:244 OPERATING DATA REPORTPREPARER NAME:John V WaldenPREPARER TELEPHONE:585-771-3588 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5852. Maximum Dependable Capacity (MWe-Net)560475.582,658.58283,511.28475.602,658.60280,181.40 0.000.008.50274,258.401,539,596.70130,105,750.04This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power from the start of the month until 4/17/08 when reactor coastdown commenced. Power reduction for the refueling outage began at 1536 on 4/20/08. The unit was scrammed at 1935 and was off-line at 1936 on 4/20/08. The unit remained shutdown for the refueling and maintenance through the end of the month.14/20/2008S 244.40C1Refueling Outage RPT_PERIOD:200805UNIT_NME:Ginna Unit 1 DOCKET:244 OPERATING DATA REPORTPREPARER NAME:John V WaldenPREPARER TELEPHONE:585-771-3588 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5852. Maximum Dependable Capacity (MWe-Net)560501.973,160.55284,013.25485.873,144.47280,667.27 0.000.008.50261,040.001,800,636.70130,366,790.04This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Reactor was made critical on 5/11/08 at 0202. The unit was placed on-line at 1808 later the same day. Full power was reached on 5/14/08 at aproximately 2300. On 5/15/08, a controlled power reduction to 50% was performed for a loss of the Heater Drain Tank pumps due to a loss of the heater drain tank control system.14/20/2008S 258.13C4Refueling Outage RPT_PERIOD:200806UNIT_NME:Ginna Unit 1 DOCKET:244 OPERATING DATA REPORTPREPARER NAME:John V. WaldenPREPARER TELEPHONE:585-771-3588 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5852. Maximum Dependable Capacity (MWe-Net)560720.003,880.55284,733.25720.003,864.47281,387.27 0.000.008.50413,782.602,214,419.30130,780,572.64This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the entire month of June. Average power for the month was 99.9%.

RPT_PERIOD:200804UNIT_NME:Grand Gulf Unit 1 DOCKET:416 OPERATING DATA REPORTPREPARER NAME:David LinPREPARER TELEPHONE:601-437-6793 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12792. Maximum Dependable Capacity (MWe-Net)1266720.002,740.53180,586.32720.002,641.32176,495.14 0.000.000.00904,539.003,224,275.00206,964,044.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Grand Gulf Unit 1 DOCKET:416 OPERATING DATA REPORTPREPARER NAME:David LinPREPARER TELEPHONE:601-437-6793 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12792. Maximum Dependable Capacity (MWe-Net)1266744.003,484.53181,330.32744.003,385.32177,239.14 0.000.000.00944,431.004,168,706.00207,908,475.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Grand Gulf Unit 1 DOCKET:416 OPERATING DATA REPORTPREPARER NAME:Brian CopelandPREPARER TELEPHONE:601-437-2738 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12792. Maximum Dependable Capacity (MWe-Net)1266720.004,204.53182,050.32720.004,105.32177,959.14 0.000.000.00904,995.005,073,701.00208,813,470.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Harris Unit 1 DOCKET:400 OPERATING DATA REPORTPREPARER NAME:David BerensPREPARER TELEPHONE:919.362.2679 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:941.72. Maximum Dependable Capacity (MWe-Net)900720.002,903.00161,493.60720.002,903.00160,260.22 0.000.000.00661,179.002,681,628.00137,852,640.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Harris Unit 1 DOCKET:400 OPERATING DATA REPORTPREPARER NAME:David BerensPREPARER TELEPHONE:919.362.2679 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:941.72. Maximum Dependable Capacity (MWe-Net)900744.003,647.00162,237.60744.003,647.00161,004.22 0.000.000.00679,592.003,361,220.00138,532,232.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Harris Unit 1 DOCKET:400 OPERATING DATA REPORTPREPARER NAME:David BerensPREPARER TELEPHONE:919.362.2679 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:941.72. Maximum Dependable Capacity (MWe-Net)900720.004,367.00162,957.60720.004,367.00161,724.22 0.000.000.00648,293.004,009,513.00139,180,525.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Hatch Unit 1 DOCKET:321 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8852. Maximum Dependable Capacity (MWe-Net)876720.001,898.58233,440.08720.001,817.17226,964.67 0.000.000.00627,981.001,473,491.00170,957,203.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of April operating at ~853 GMWe (~2579 CMWt) and raising reactor pressure per plant startup procedure while monitoring 1C SRV tailpipe temperature. Shift ramped load at <2.5% per hour to ~901 GMWe (<2777 CMWt) with crossflow out of service on April 1. Shift reduced load to ~848 GMWe (~2568 CMWt) later on April 1 due to 1F SRV increased tailpipe temperature. After commencing a <3% per hour ramp, shift reduced load to ~840 GMWe (~2579 CMWt) early on April 2 due to 1F SRV increased tailpipe temperature. Shift commenced again a <3% per hour ramp and holding reactor vessel pressure (RVP) at 1025 psig on April 2, but derated to ~838 GMWe (~2576 CMWt) due to 1F SRV increased tailpipe temperature. Shift ramped load at 1% per hour followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months soaks and holding (RVP) at 1021 psig on April 3. Shift maintained ~895 GMWe (~2734 CMWt) for the current rod pattern on April 4. Shift reduced load to ~759 GMWe (~2327 CMWt) on April 4 to perform a rod pattern adjustment. Shift ramped load at less than 3% per hour to ~839 GMWe (~2579 CMWt) early on April 5. Shift then ramped load at 1% per hour followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months pressure soaks and maintaining RVP at 1021 psig to ~903 GMWe (~2770 CMWt) on April 6. Shift reduced load to ~856 GMWe (~2579 CMWt) late on April 6 to perform a rod pattern adjustment. Shift ramped load at 1% per hour followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months soaks and maintaining RVP at 1021 psig to reach ~921 GMWe (~2770 CMWt) early on April 8. Shift maintained these parameters until early on April 16 at which time RVP was raised ~1.0 psig per day. Shift reduced load to ~832 GMWe (~2518 CMWt) late on April 18 to perform CRD exercises and TSV testing. Shift then reduced load to ~808 GMWe (~2405 CMWt) on April 18 to perform a rod pattern adjustment. Shift ramped load at ~1% per hour to ~856 GMWe (~2579 CMWt) on April 19. Shift then ramped load at 1% per hour followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months pressure soaks and maintaining RVP at ~1024 psig to ~921 GMWe (~2770 CMWt) on April 20. Shift maintained ~921 GMWe (~2770 CMWt) and raised RVP ~1.0 psig per day until unit reached 100% RTP (~2804 CMWt) on April 30. Shift ended the month of April operating unit at 100% RTP (2804 CMWt).

RPT_PERIOD:200805UNIT_NME:Hatch Unit 1 DOCKET:321 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8852. Maximum Dependable Capacity (MWe-Net)876744.002,642.58234,184.08744.002,561.17227,708.67 0.000.000.00655,584.002,129,075.00171,612,787.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of May operating at 100% rated thermal power (RTP) (~2804 CMWt). Shift reduced load to ~848 GMWe(~2532 CMWt) on May 12 due to indications of 1F SRV leakage. Shift commenced load ramp late on May 15 and reached 100% RTP (~2804 CMWt) early on May 16 with reactor vessel pressure at ~1034 psig. Shift continued to raise reactor vessel pressure at ~1.0 psig increments per hour followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months soaks until normal operating pressure was obtained on May 17. Shift ended the month of May operating unit at 100% RTP (~2804 CMWt).

RPT_PERIOD:200806UNIT_NME:Hatch Unit 1 DOCKET:321 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8852. Maximum Dependable Capacity (MWe-Net)876720.003,362.58234,904.08720.003,281.17228,428.67 0.000.000.00623,382.002,752,457.00172,236,169.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of June operating at 100% rated thermal power (RTP) (~2804 CMWt). Shift reduced load to ~820 GMWe(~2505 CMWt) on June 7 to perform CRD exercises, TSV testing, and a rod pattern adjustment. Shift ramped load to 100% RTP early on June 8, but then had to derate to ~908 GMWe (<2777 CMWt) for less than one hour due to the derate clock being ON, after which unit was returned to 100% RTP (~2804 CMWt). Shift reduced load to ~618 GMWe (~1954 CMWt) on June 28 to perform a rod sequence exchange, TCV testing, CRD exercises, a rod pattern adjustment, repair of a control rod hydraulic unit and a MSR drain tank level control valve. Shift commenced a load ramp to the precondition envelope late on June 28, and completed ramping at <3% per hour to ~893 GMWe (<2777 CMWt) on June 29 with crossflow out of service. Shift was forced to reduce load to ~575 GMWe (~1823 CMWt) on June 29 to repair a EHC accumulator leak on TCV #2. After completing repairs, shift commenced ramping load early on June 30, and then completed ramping load at <3% per hour to ~891 GMWe (<2777 CMWt) with crossflow out of service. Shift reduced loadto ~792 GMWe (~2327 CMWt) late on June 30 to perform a rod pattern adjustment. Shift ended the month of June operating unit at ~792 GMWe (~2327 CMWt) while completing a rod pattern adjustment.

RPT_PERIOD:200804UNIT_NME:Hatch Unit 2 DOCKET:366 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9082. Maximum Dependable Capacity (MWe-Net)883720.002,851.98210,571.03720.002,833.77205,960.04 0.000.000.00641,351.002,509,157.00158,728,864.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of April operating at 100% rated thermal power (RTP) (~2804 CMWt). Shift reduced load to ~921 GMWe (<2790 CMWt) on April 8 due to a loss of the plant Process Computer and Core Thermal Power (CTP) program. Shift returned unit to 100% rated thermal power (~2804 CMWt) later on April 8 after crossflow was returned to service. Shift reduced load to ~828 GMWe (~2523 CMWt) on April 27 to perform CRD exercises and TSV testing. Shift ramped load ramp to ~919 GMWe (<2777 CMWT) early on April 28 and maintained load with crossflow out of service, after which shift completed ramping unit to 100% RTP (~2804 CMWt) on April 28. Shift ended the month of April operating unit at 100% RTP (2804 CMWt).

RPT_PERIOD:200805UNIT_NME:Hatch Unit 2 DOCKET:366 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9082. Maximum Dependable Capacity (MWe-Net)883620.503,472.48211,191.53546.633,380.40206,506.67 0.000.000.00452,200.002,961,357.00159,181,064.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of May operating at 100% rated thermal power (RTP) (~2804 CMWt). Shift began a load reduction late on May 2 to shut down unit to allow planned repair of safety relief valves. Shift manually scrammed the reactor at 09:05 on May 3 to remove unit off line. After repairs were completed, shift brought the reactor critical at 09:39 on May 7. The reactor was manually scrammed at 19:42 on May 7 to allow repair of an identified steam line leak. Repairs were completed and the reactor was brought to critical conditions at 22:38 on May 8. The startup was further delayed due to a valve lineup error which hindered turbine shell warming. Additionally a weld was completed on a 4th stage extraction steam drain trap during this delay. After resolving a main turbine "EXCESSIVE SPEED ERROR" alarm incurred during the initial main turbine roll, the main generator was tied to the grid at 14:27 on May 11. Power ascension was stopped and maintained at ~480 GMWe (~1532 CMW T) due to algae buildup on the cooling tower screens on May 12. Shift resumed power ascension early on May 13 and reached ~839 GMWe (~2532 CMWT) for the current rod pattern. Shift performed a rod pattern adjustment late on May 13 and ramped load to ~857 GMWe (2579 CMWt) early on May 14, at which time reactor vessel pressure (RVP) was increased per plant startup procedure. Pressure increases were suspended briefly on May 14 due to 2D safety relief valve high temperature, after which RVP increases resumed. Shift then ramped load at <3% per hour to ~920 GMWe (~2764 CMWt) late on May 14 with crossflow out of service and for the current rod pattern. Shift reduced load to ~804 GMWe (~2383 CMWt) on May 15 to perform a rod pattern adjustment, and ramped load at <3% per hour to ~915 GMWe (~2760 CMWt) with crossflow out of service. Shift completed ramp to 100% RTP (~2804 CMWt) on May 16. Shift reduced load to ~835 GMWe (~2532 CMWt) on May 24 to perform CRD exercises and TSV testing. Shift then reduced load to ~811GMWe (~2355 CMWt) to perform a rod pattern adjustment early on May 25. Shift completed load ramp at <3% per hour to 100% RTP (~2804 CMWt) on May 25. Shift ended the month of May operating unit at 100% RTP (~2804 CMWT).08-0025/3/2008S 197.37B1Unit shutdown for repair of Safety Relief Valves.

RPT_PERIOD:200806UNIT_NME:Hatch Unit 2 DOCKET:366 OPERATING DATA REPORTPREPARER NAME:K. E. DrawdyPREPARER TELEPHONE:912-366-2007 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9082. Maximum Dependable Capacity (MWe-Net)883720.004,192.48211,911.53720.004,100.40207,226.67 0.000.000.00629,534.003,590,891.00159,810,598.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of June operating at 100% rated thermal power (RTP) (~2804 CMWt). Shift reduced load to ~904 GMWe (~2711 CMWt) on June 8 to perform a rod pattern adjustment. Shift completed ramping load at <3% per hour to 100% RTP (~2804 CMWt) on June 8. Shift reduced load to ~530 GMWe (~1682 CMWt) on June 14 to perform a rod sequence exchange, CRD exercises, TCV testing, and TSV testi ng. Shift completed ramping load at <3% per hour to ~903 GMWe (< 2777 CMWt) on June 15 with crossflow out of service. Shift reduced load to ~900 GMWe (<2708 CMWt) early on June 16 to perform TSV testing, and then reduced load to ~838 GMWe (~2495 CMWt) to perform a ro d pattern adjustment. Shift completed ramping at <3% per hour to ~904 GMWe (<2777 CMWt) with crossflow out of service on June 16. Shift later on the same day completed ramping at <3% per hour to 100% RTP (~2804 CMWt). Shift reduced load to ~867 GMWe (~2540 CMWt) late on June 20 to perform a rod pattern adjustment. Shift completed ramping at <3% per hour to reach 100% RTP (~2804 CMWt) on June 21. Shift ended the month of June operating unit at 100% RTP (~2804 CMWt).

RPT_PERIOD:200804UNIT_NME:Hope Creek Unit 1 DOCKET:354 OPERATING DATA REPORTPREPARER NAME:PossesskyPREPARER TELEPHONE:856-339-1160 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10832. Maximum Dependable Capacity (MWe-Net)1049720.002,903.00161,566.68720.002,875.23158,153.92 0.000.000.00770,955.003,076,467.00161,308,255.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit entered the month at about 100%. Power was reduced to 81% on 4/20 due to a brush fire under the transmission lines. The Unit returned to about 100% on 4/20.

Power was reduced to 89% on 4/30 to obtain data for implementation of extended power uprate. The Unit ended the month at 89%.

The SRVs were not challenged by any overpressurization events or transients that would have required the valves to respond automatically.

RPT_PERIOD:200805UNIT_NME:Hope Creek Unit 1 DOCKET:354 OPERATING DATA REPORTPREPARER NAME:PossesskyPREPARER TELEPHONE:856-339-1160 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10832. Maximum Dependable Capacity (MWe-Net)1049744.003,647.00162,310.68744.003,619.23158,897.92 0.000.000.00799,700.003,876,167.00162,107,955.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit entered the month at 89%. Power was raised to 95% on 5/2 to continue data collection for extended power uprate (EPU). Power was raised to 100% on 5/4. On 5/16 the License Ammendment to implement EPU was received which raised rated core thermal power from 3339 to 3840MWt. This changed 100% to 87%. On 5/22 power was raised from 87% to 91% for EPU. On 5/25 power was reduced to 43% due to a blown 1E fuse and a TS required shutdown. Plant shutdown was terminated on 5/25 at 44% and power was raised to 91% on 5/25. On 5/27 power was raised to 95% for EPU.

The Unit ended the month at 95%.

The SRVs were not challenged by any overpressurization events or transients that would have required the valves to respond automatically.

RPT_PERIOD:200806UNIT_NME:Hope Creek Unit 1 DOCKET:354 OPERATING DATA REPORTPREPARER NAME:PossesskyPREPARER TELEPHONE:856-339-1160 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10832. Maximum Dependable Capacity (MWe-Net)1049720.004,367.00163,030.68720.004,339.23159,617.92 0.000.000.00832,578.004,708,745.00162,940,533.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit entered the month at 95%. Power was raised to 97% on 6/1 for extended power uprate (EPU). On 6/14 power was lowered to 66% to conduct Main Turbine Valve Testing and 5A feedwater heater repair. Power was returned to 97% on 6/15.

The Unit ended the month at 97%.

The SRVs were not challenged by any overpressurization events or transients that would have required the valves to respond automatically.

RPT_PERIOD:200804UNIT_NME:Indian Point Unit 2 DOCKET:247 OPERATING DATA REPORTPREPARER NAME:B. BeckmanPREPARER TELEPHONE:(914)734-5850 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10352. Maximum Dependable Capacity (MWe-Net)998260.922,250.19218,899.44231.102,220.37214,593.80 0.000.000.00195,816.002,239,396.00187,574,897.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 2 was synchronized to the grid for a total of 231.11 Hours, producing a gross generation of 203,528 MWhrs. The unit began the month shutdown for Refueling Outage 2R18. Cycle 19 Initial Criticality was achieved on 4/19/08 at approximately 1415 hours0.0164 days 0.393 hours 0.00234 weeks 5.384075e-4 months , and Initial Synchronization was achieved on 4/20/08 at approximately 0126 hours0.00146 days 0.035 hours 2.083333e-4 weeks 4.7943e-5 months . Power ascension was begun until 4/20/08 at approximately 0132 hours0.00153 days 0.0367 hours 2.18254e-4 weeks 5.0226e-5 months when the Main Turbine Generator was manually tripped due to a Main Generator Negative Sequence Relay (relay 46) problem (CR-IP2-2008-2305 & 2307). The Reactor remained critical. After replacing the incorrectly labeled relay the turbine was again synchronized to the grid on 4/20/08 at approximately 1429 hours0.0165 days 0.397 hours 0.00236 weeks 5.437345e-4 months and power ascension again begun. On 4/21/08 at approximately 1125 hours0.013 days 0.313 hours 0.00186 weeks 4.280625e-4 months the unit was manually tripped due to lowering Steam Generator levels caused by a bistable failure associated with Main Boiler Feed Pump input to the Main Turbine runback circuitry. After repairs the Reactor was made critical on 4/22/08 at approximately 0015 hours1.736111e-4 days 0.00417 hours 2.480159e-5 weeks 5.7075e-6 months , and the Turbine synchronized to the bus that same day at approximately 0556 hours0.00644 days 0.154 hours 9.193122e-4 weeks 2.11558e-4 months with the unit in power ascension. Full power was achieved on 4/25/08 at approximately 1030 hours0.0119 days 0.286 hours 0.0017 weeks 3.91915e-4 months . The unit remained on line for the remainder of the month.20080 13/23/2008F 457.43A4Manual Reactor Scram initiated due to the loss of 22 Main Boiler Feed Pump (CR-IP2-2008-1333). Decision was made to remain in a forced shutdown until 3/26/08 at 0000 hours0 days 0 hours 0 weeks 0 months then to begin a Scheduled Refueling Outage (2R18).20080 24/20/2008F 12.95A5Main Turbine Generator manually tripped due to a Main Generator Negative Sequence Relay (relay

46) problem. Relay was incorrectly labeled at the factory. The reactor remained critical.20080 34/21/2008F 18.52A2Unit shutdown by Manual Reactor trip, due to lowering Steam Generator water levels caused by a bistable failure associated with Main Boiler Feed Pump input to the Main Turbine runback circuitry. (CR-IP2-2008-2334).

RPT_PERIOD:200805UNIT_NME:Indian Point Unit 2 DOCKET:247 OPERATING DATA REPORTPREPARER NAME:Ron MacinaPREPARER TELEPHONE:(914)734-6839 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10352. Maximum Dependable Capacity (MWe-Net)998744.002,994.19219,643.44744.002,964.37215,337.80 0.000.000.00764,999.653,004,395.65188,339,896.65This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 2 was synchronized to the grid for a total of 744 hours0.00861 days 0.207 hours 0.00123 weeks 2.83092e-4 months , producing a gross generation of 790,142 MWhrs. The unit operated at full power for the entire month.

RPT_PERIOD:200806UNIT_NME:Indian Point Unit 2 DOCKET:247 OPERATING DATA REPORTPREPARER NAME:Ron MacinaPREPARER TELEPHONE:(914)734-6839 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10352. Maximum Dependable Capacity (MWe-Net)998720.003,714.19220,363.44707.323,671.69216,045.12 0.000.000.00711,579.403,715,975.05189,051,476.05This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 2 was synchronized to the grid for a total of 707.32 hours3.703704e-4 days 0.00889 hours 5.291005e-5 weeks 1.2176e-5 months , producing a gross generation of 735,850 MWhrs. The unit began the month at full power. On June 4, 2008, at approximately 0100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months , commenced a planned main turbine generator load reduction to repair/replace the Generrex Exciter 15v power supply. The main generator output breakers 7 and 9 were opened (turbine trip) at approximately 0856 hours0.00991 days 0.238 hours 0.00142 weeks 3.25708e-4 months on June 4, 2008, but the reactor remained critical. Following repairs on June 4, 2008 at approximately 2137 hours0.0247 days 0.594 hours 0.00353 weeks 8.131285e-4 months , the unit was synchronized to the grid and achieved full power the following day at approximately 0340 hours0.00394 days 0.0944 hours 5.621693e-4 weeks 1.2937e-4 months .20080 46/4/2008S 12.68B5Shutdown to repair/replace the Generrex Eciter 15v Power Supply.

RPT_PERIOD:200804UNIT_NME:Indian Point Unit 3 DOCKET:286 OPERATING DATA REPORTPREPARER NAME:Bob BeckmanPREPARER TELEPHONE:(914)734-5850 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10482. Maximum Dependable Capacity (MWe-Net)1030720.002,903.00190,267.42720.002,903.00187,123.89 0.000.000.00755,097.003,044,573.00172,246,195.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 3 was synchronized to the grid for a total of 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months , producing a gross generation of 777,992 MWhrs. The unit operated at full power for the entire month.

RPT_PERIOD:200805UNIT_NME:Indian Point Unit 3 DOCKET:286 OPERATING DATA REPORTPREPARER NAME:Ron MacinaPREPARER TELEPHONE:(914)734-6839 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10482. Maximum Dependable Capacity (MWe-Net)1030744.003,647.00191,011.42744.003,647.00187,867.89 0.000.000.00779,142.003,823,715.00173,025,337.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 3 was synchronized to the grid for a total of 744 hours0.00861 days 0.207 hours 0.00123 weeks 2.83092e-4 months , producing a gross generation of 804,001 MWhrs. The unit operated at full power for the entire month.

RPT_PERIOD:200806UNIT_NME:Indian Point Unit 3 DOCKET:286 OPERATING DATA REPORTPREPARER NAME:Ron MacinaPREPARER TELEPHONE:(914)734-6839 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10482. Maximum Dependable Capacity (MWe-Net)1030720.004,367.00191,731.42720.004,367.00188,587.89 0.000.000.00751,116.004,574,831.00173,776,453.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Indian Point 3 was synchronized to the grid for a total of 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months , producing a gross generation of 776,189 MWhrs. The unit operated at full power for the entire month.

RPT_PERIOD:200804UNIT_NME:Kewaunee Unit 1 DOCKET:305 OPERATING DATA REPORTPREPARER NAME:J.A. GadzinskiPREPARER TELEPHONE:920-388-8776 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5742. Maximum Dependable Capacity (MWe-Net)5560.002,111.90251,180.920.002,111.10248,697.37 0.000.0010.000.001,200,671.00126,218,107.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On March 29, 2008, at 0006, the unit was shut down for a planned refueling outage. (KR29)KR293/29/2008S 720.00C4On March 29, 2008 @ 0006, the unit was shutdown for KR29 Refueling Outage.On May 9, 2008 @ 1800, G-1 was closed.

RPT_PERIOD:200805UNIT_NME:Kewaunee Unit 1 DOCKET:305 OPERATING DATA REPORTPREPARER NAME:J. A. GadzinskiPREPARER TELEPHONE:920-388-8776 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5742. Maximum Dependable Capacity (MWe-Net)556558.502,670.40251,739.42534.002,645.10249,231.37 0.000.0010.00283,772.001,484,443.00126,501,879.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Closed G-1 on May 9, 2008 @ 1800. Unit remains at 100% steady state.KR293/29/2008S 210.00C4On March 29, 2008 @ 0006, the unit was shutdown for KR29 Refueling Outage.On May 9, 2008 @ 1800, G-1 was closed.

RPT_PERIOD:200806UNIT_NME:Kewaunee Unit 1 DOCKET:305 OPERATING DATA REPORTPREPARER NAME:JA GadzinskiPREPARER TELEPHONE:920-388-8776 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5742. Maximum Dependable Capacity (MWe-Net)556720.003,390.40252,459.42720.003,365.10249,951.37 0.000.0010.00410,671.001,895,114.00126,912,550.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit continues to operate at 100% steady state RPT_PERIOD:200804UNIT_NME:LaSalle Unit 1 DOCKET:373 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111720.002,334.83160,468.98720.002,313.32158,155.94 0.000.001.00829,542.002,315,552.00163,217,723.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during the month of April without exceptions.

RPT_PERIOD:200805UNIT_NME:LaSalle Unit 1 DOCKET:373 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111744.003,078.83161,212.98744.003,057.32158,899.94 0.000.001.00851,854.003,167,406.00164,069,577.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during May 2008, with the following exception: On May 25, power was reduced to approximately 77% for rod sequence exchange and scram insertion time testing. The unit was returned to full power the same day, and operated at or near full power for the remainder of the month.

RPT_PERIOD:200806UNIT_NME:LaSalle Unit 1 DOCKET:373 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111720.003,798.83161,932.98720.003,777.32159,619.94 0.000.001.00817,073.003,984,479.00164,886,650.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during June 2008 without exception.

RPT_PERIOD:200804UNIT_NME:LaSalle Unit 2 DOCKET:374 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111720.002,903.00152,579.62720.002,903.00151,366.01 0.000.000.00827,743.003,340,128.00158,547,525.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during April 2008, with the following exception: On April 29, power was reduced to approximately 82% for repairs to the #4 TCV LVDT. The unit was returned to full power the same day, and operated at or near full power for the remainder of the month.

RPT_PERIOD:200805UNIT_NME:LaSalle Unit 2 DOCKET:374 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111744.003,647.00153,323.62744.003,647.00152,110.01 0.000.000.00841,686.004,181,814.00159,389,211.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during May 2008, with the following exception: On May 17, power was reduced to approximately 52% for rod sequence exchange, scram time testing, channel distortion testing, and to conduct repairs on all four turbine control valve LVDTs. The unit was returned to full power on May 19, 2008, and operated at or near full power for the remainder of the month.

RPT_PERIOD:200806UNIT_NME:LaSalle Unit 2 DOCKET:374 OPERATING DATA REPORTPREPARER NAME:S. ShieldsPREPARER TELEPHONE:(815) 415-2811 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11542. Maximum Dependable Capacity (MWe-Net)1111720.004,367.00154,043.62720.004,367.00152,830.01 0.000.000.00815,406.004,997,220.00160,204,617.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at or near full power during June 2008 without exception.

RPT_PERIOD:200804UNIT_NME:Limerick Unit 1 DOCKET:352 OPERATING DATA REPORTPREPARER NAME:Greg J. LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134720.002,413.58175,103.20720.002,370.30172,910.25 0.000.000.00831,274.002,613,865.00183,285,183.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 started the month of April 2008 at 100% Rated Thermal Power (RTP).On April 5th at 22:01, Unit 1 reactor entered a planned load drop to 84.7% RTP for a rod pattern adjustment.

On April 6th at 03:26, reactor power was restored to 99.5% RTP.

On April 12th at 09:02, Unit 1 entered a planned load drop to 98.0% RTP for a rod pattern adjustment. At 10:25, reactor power was restored to 99.6% RTP.

Unit 1 ended the month of April 2008 at 100% RTP.

RPT_PERIOD:200805UNIT_NME:Limerick Unit 1 DOCKET:352 OPERATING DATA REPORTPREPARER NAME:Greg LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134744.003,157.58175,847.20744.003,114.30173,654.25 0.000.000.00853,857.003,467,722.00184,139,040.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of May 2008 at 100% of rated thermal power (RTP).On May 16th at 2203 hours0.0255 days 0.612 hours 0.00364 weeks 8.382415e-4 months , reactor power was reduced from 99.9% to 75.4% RTP for quarterly control rod scram time testing and rod pattern adjustment.

On May 17th at 1209 hours0.014 days 0.336 hours 0.002 weeks 4.600245e-4 months , reactor power was restored to 99.5% RTP.

On May 24th at 2201 hours0.0255 days 0.611 hours 0.00364 weeks 8.374805e-4 months , reactor power was reduced from 99.9% to 98.1% RTP for rod pattern adjustment.

On May 25th at 0037 hours4.282407e-4 days 0.0103 hours 6.117725e-5 weeks 1.40785e-5 months , reactor power was restored to 99.6% RTP.

Unit 1 ended the month of May 2008 at 100% RTP.

RPT_PERIOD:200806UNIT_NME:Limerick Unit 1 DOCKET:352 OPERATING DATA REPORTPREPARER NAME:Greg LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134720.003,877.58176,567.20720.003,834.30174,374.25 0.000.000.00812,736.004,280,458.00184,951,776.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of June 2008 at 100% of rated thermal power (RTP). There were no power changes during the month of June 2008.

Unit 1 ended the month of June 2008 at 100% RTP.

RPT_PERIOD:200804UNIT_NME:Limerick Unit 2 DOCKET:353 OPERATING DATA REPORTPREPARER NAME:Greg J. LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134720.002,690.83150,934.26720.002,636.80148,862.31 0.000.000.00821,780.003,021,240.00162,222,962.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 started the month of April 2008 at 99.9% Rated Thermal Power (RTP).On April 26th at 22:00, Unit 2 entered a planned load drop to 22.1% RTP for turbine valve testing.

On April 27th at 21:37, reactor power was restored to 99.7% RTP.

Unit 2 finished the month of April 2008 at 99.9% RTP.

RPT_PERIOD:200805UNIT_NME:Limerick Unit 2 DOCKET:353 OPERATING DATA REPORTPREPARER NAME:Greg LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134744.003,434.83151,678.26744.003,380.80149,606.31 0.000.000.00851,846.003,873,086.00163,074,808.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of May 2008 at 99.9% of rated thermal power (RTP).On May 1st at 0359 hours0.00416 days 0.0997 hours 5.935847e-4 weeks 1.365995e-4 months , reactor power was reduced from 100.0% to 99.2% RTP for rod pattern adjustment. At 0422 hours0.00488 days 0.117 hours 6.977513e-4 weeks 1.60571e-4 months , reactor power was restored to 99.5% RTP.

On May 22nd at 1508 hours0.0175 days 0.419 hours 0.00249 weeks 5.73794e-4 months , reactor power was reduced from 99.9% to 97.7% RTP for condenser water box leak repair. At 1638 hours0.019 days 0.455 hours 0.00271 weeks 6.23259e-4 months , reactor power was restored to 99.5% RTP.

On May 23rd at 2158 hours0.025 days 0.599 hours 0.00357 weeks 8.21119e-4 months , reactor power was reduced from 100.0% to 59.3% RTP for quarterly turbine valve testing and steam leak repair.

On May 24th at 0758 hours0.00877 days 0.211 hours 0.00125 weeks 2.88419e-4 months , reactor power was restored to 99.7% RTP.On May 30th at 0105 hours0.00122 days 0.0292 hours 1.736111e-4 weeks 3.99525e-5 months , reactor power was reduced from 99.9% to 99.0% RTP for rod pattern adjustment. At 0134 hours0.00155 days 0.0372 hours 2.215608e-4 weeks 5.0987e-5 months , reactor power was restored to 99.5% RTP.

Unit 2 ended the month of May 2008 at 100% RTP.

RPT_PERIOD:200806UNIT_NME:Limerick Unit 2 DOCKET:353 OPERATING DATA REPORTPREPARER NAME:Greg LeePREPARER TELEPHONE:610-718-3707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11912. Maximum Dependable Capacity (MWe-Net)1134720.004,154.83152,398.26720.004,100.80150,326.31 0.000.000.00810,367.004,683,453.00163,885,175.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of June 2008 at 100% of rated thermal power (RTP).On June 7th at 15:39 hours, reactor power was reduced from 99.9% to 96.8% RTP due to excessive condensate temperature resulting from high ambient temperature conditions.On June 8th at 01:51 hours, reactor power was restored to 99.8% RTP. At 13:44 hours, reactor power was reduced from 99.9% to 96.7% RTP due to excessive condensate temperature resulting from high ambient temperature conditions. At 23:31 hours, reactor power was restored to 99.7% RTP.On June 9th at 11:45 hours, reactor power was reduced from 99.9% to 96.4% RTP due to excessive condensate temperature resulting from high ambient temperature conditions.

On June 10th at 03:55 hours, reactor power was restored to 99.9% RTP. At 11:20 hours, reactor power was reduced from 100.0% to 93.4% RTP due to excessive condensate temperature resulting from high ambient temperature. At 22:00 hours, reactor power was restored to 99.6% RTP.Unit 2 ended the month of June 2008 at 99.9% RTP.

RPT_PERIOD:200804UNIT_NME:McGuire Unit 1 DOCKET:369 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100720.002,903.00185,674.03720.002,903.00184,286.95 0.000.000.00826,387.003,345,781.00199,000,337.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:McGuire Unit 1 DOCKET:369 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100744.003,647.00186,418.03744.003,647.00185,030.95 0.000.000.00849,045.004,194,826.00199,849,382.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:McGuire Unit 1 DOCKET:369 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100647.004,294.00187,065.03638.004,285.00185,668.95 0.000.000.00700,289.004,895,115.00200,549,671.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The Unit 1 reactor tripped on 6/26/08 at 17:31 due to low reactor coolant flow following the 1B reactor coolant pump trip. Following replacement of the faulty pump surge capacitor, the reactor was returned to critical on 6/29/08 at 18:31. Generator Breaker 1A was closed on 6/30/08 at 03:31. Subsequently, escalation to 100% power commenced.16/26/2008F 82.00A3Unit 1 Generator Breaker opened on 06/26/2008 at 17:31 as a result of the 1B Reactor Coolant Pump Trip and subsequent low reactor coolant flow. The generator breaker was closed, following startup, on 6/30/2008 at 03:31.

RPT_PERIOD:200804UNIT_NME:McGuire Unit 2 DOCKET:370 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100360.521,807.52178,275.08323.601,770.60176,882.31 0.000.000.00325,923.001,996,677.00196,344,782.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 entered the month of April in Mode 5 as part of the planned M2EOC18 refueling outage. Following heatup, the reactor was brought to critical on 4/12/08 at 16:18. Zero Power Physics Testing was then performed and the generator brought on line, by closing breaker 2A, on 4/13/08 at 10:44. Following turbine testing, the unit was shutdown at 11:23, via procedure, in order to facilitate repairs to a Raw Cooling discharge gate (2RC-80) that required cooldown to Mode 4. Following the repairs and subsequent heatup, the reactor was returned to critical on 4/16/08 at 18:34 and the generator brought on line, by closing breaker 2B, on 4/17/08 at 13:03. Power escalation followed and the unit ended the month at 100% power. 24/13/2008S 97.67A1The unit was shutdown on 4/13/08 in order to allow interim repairs on a raw cooling discharge gate (2RC-80). The need to repair the gate was known prior to initial startup, but, due to schedule concerns of qualified diver personnel, the decision was made to perform physics and turbine testing prior to gate repair. The generator was placed on line, following the gate repair and reactor startup, on 4/17/08. 13/1/2008S 298.73C4Unit 2 was tripped as planned, per procedure, to enter the 2EOC18 refueling outage. The generator breaker opened on reactor trip. 2A Generator Breaker was closed, as part of the planned turbine testing, on 4/13/08.

RPT_PERIOD:200805UNIT_NME:McGuire Unit 2 DOCKET:370 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100744.002,551.52179,019.08744.002,514.60177,626.31 0.000.000.00858,777.002,855,454.00197,203,559.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:McGuire Unit 2 DOCKET:370 OPERATING DATA REPORTPREPARER NAME:Kay CranePREPARER TELEPHONE:(704) 875-4306 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11802. Maximum Dependable Capacity (MWe-Net)1100720.003,271.52179,739.08720.003,234.60178,346.31 0.000.000.00820,731.003,676,185.00198,024,290.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Millstone Unit 2 DOCKET:336 OPERATING DATA REPORTPREPARER NAME:K. CookPREPARER TELEPHONE:860-447-1791 X6572 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:883.52. Maximum Dependable Capacity (MWe-Net)877.7121.332,304.33193,152.16120.002,303.00187,243.74 0.000.00468.20101,520.302,022,368.80155,563,697.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millstone Unit 2 operated at or near 100% power until April 5,2008 when it was downpowered starting at 1455 hours0.0168 days 0.404 hours 0.00241 weeks 5.536275e-4 months and subsequently taken off-line at 0000 on April 6, 2008 to begin a planned refueling outage. 2008-014/6/2008S 600.00C1Major work activities are the refueling of the reactor core and 10 year ISI core barrel inspection.

RPT_PERIOD:200805UNIT_NME:Millstone Unit 2 DOCKET:336 OPERATING DATA REPORTPREPARER NAME:S. ClaffeyPREPARER TELEPHONE:860-447-1791 x2456 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:883.52. Maximum Dependable Capacity (MWe-Net)877.7257.902,562.23193,410.06233.452,536.45187,477.19 0.000.00468.20182,686.002,205,054.80155,746,383.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millstone Unit 2 restarted from a planned refueling outage on May 15, 2008. Cycle 19 initial criticality occurred on May 15, 2008 at 1838 hours0.0213 days 0.511 hours 0.00304 weeks 6.99359e-4 months . The main generator was phased to the grid on May 16, 2008 at 0329 hours0.00381 days 0.0914 hours 5.439815e-4 weeks 1.251845e-4 months . The main generator tripped off the line on May 22, 2008 at 1359 hours0.0157 days 0.378 hours 0.00225 weeks 5.170995e-4 months due to a lightning strike on the offsite power lines. The event also caused a reactor trip. The reactor was returned to critical on May 24, 2008 at 0707 hours0.00818 days 0.196 hours 0.00117 weeks 2.690135e-4 months . The reactor tripped May 24, 2008 at 0938 hours0.0109 days 0.261 hours 0.00155 weeks 3.56909e-4 months due to a loss of normal power (LNP) event. The LNP occurred when the supply breakers for both 4160 volt and 6900 volt buses from the Reserve Station Service Transformer (RSST) unexpectedly opened. A reactor trip signal was initiated on reactor coolant pump (RCP) low speed and low reactor coolant flow. The RSST to bus supply breaker trip was caused by a spurious primary audio tone trip signal, most likely generated from the 345KV switchyard. The reactor was returned to critical on May 28, 2008 at 0358 hours0.00414 days 0.0994 hours 5.919312e-4 weeks 1.36219e-4 months . The main generator was phased to the grid on May 28, 2008 at 1703 hours0.0197 days 0.473 hours 0.00282 weeks 6.479915e-4 months . The unit reached 100% power May 29, 2008 at 1258 hours0.0146 days 0.349 hours 0.00208 weeks 4.78669e-4 months . The unit operated at or near 100% power for the remainder of May 2008.2008-25/22/2008F 147.07H3The main generator tripped off the line on May 22, 2008 at 1359 hours0.0157 days 0.378 hours 0.00225 weeks 5.170995e-4 months due to a lightning strike on the offsite power lines. The event also caused a reactor trip. The reactor was returned to critical on May 24, 2008 at 0707 hours0.00818 days 0.196 hours 0.00117 weeks 2.690135e-4 months . The reactor tripped May 24, 2008 at 0938 hours0.0109 days 0.261 hours 0.00155 weeks 3.56909e-4 months due to a loss of normal power (LNP) event. The LNP occurred when the supply breakers for both 4160 volt and 6900 volt buses from the Reserve Station Service Transformer (RSST) unexpectedly opened. A reactor trip signal was initiated on reactor coolant pump (RCP) low speed and low reactor coolant flow. The RSST to bus supply breaker trip was caused by a spurious primary audio tone trip signal, most likely generated from the 345KV switchyard. The reactor was returned to critical on May 28, 2008 at 0358 hours0.00414 days 0.0994 hours 5.919312e-4 weeks 1.36219e-4 months .

The main generator was phased to the grid on May 28, 2008 at 1703 hours0.0197 days 0.473 hours 0.00282 weeks 6.479915e-4 months . 2008-014/6/2008S 363.48C4Major work activities are the refueling of the reactor core and 10 year ISI core barrel inspection.

RPT_PERIOD:200806UNIT_NME:Millstone Unit 2 DOCKET:336 OPERATING DATA REPORTPREPARER NAME:S. ClaffeyPREPARER TELEPHONE:860-447-1791 x2456 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:883.52. Maximum Dependable Capacity (MWe-Net)877.7659.773,222.00194,069.83659.773,196.22188,136.96 0.000.00468.20579,563.402,784,618.20156,325,946.70This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millstone Unit 2 operated at or near 100% power from the beginning of the month until June 28, 2008. At 1146 hours0.0133 days 0.318 hours 0.00189 weeks 4.36053e-4 months on June 28, 2008, the reactor was manually tripped due to the loss of main steam generator feedwater flow. Both steam generator feedwater pumps tripped on low suction pressure due to feedwater heater level oscillations during the performance of main turbine intercept valve testing. The reactor was shutdown for the remainder of June 2008.2008-36/28/2008F 60.23A2At 1146 hours0.0133 days 0.318 hours 0.00189 weeks 4.36053e-4 months on June 28, 2008, the reactor was manually tripped due to the loss of main steam generator feedwater flow. Both steam generator feedwater pumps tripped on low suction pressure due to feedwater heater level oscillations during the performance of main turbine intercept valve testing. Corrective actions include adjustments to the feedwater level control system and alignment of the "B" main feedwater pump.

RPT_PERIOD:200804UNIT_NME:Millstone Unit 3 DOCKET:423 OPERATING DATA REPORTPREPARER NAME:K. CookPREPARER TELEPHONE:860-447-1791 X6572 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1156.52. Maximum Dependable Capacity (MWe-Net)1148720.002,903.00146,212.86720.002,903.00144,316.68 0.000.000.00824,195.003,332,602.30159,762,349.90This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millsone Unit 3 operated at or near 100% power for the month of April until April 5, 2008 at 0117 hours0.00135 days 0.0325 hours 1.934524e-4 weeks 4.45185e-5 months when the unit reduced load to approximately 88% power to shift from the "B" turbine driven main feedwater pump to the motor driven feed pump and also performed main turbine control valve testing. The plant was back at 100% power at 1615 hours0.0187 days 0.449 hours 0.00267 weeks 6.145075e-4 months and continued to operate at 100% for the remainder of the month.

RPT_PERIOD:200805UNIT_NME:Millstone Unit 3 DOCKET:423 OPERATING DATA REPORTPREPARER NAME:K. CookPREPARER TELEPHONE:860-447-1791 X6572 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1156.52. Maximum Dependable Capacity (MWe-Net)1148744.003,647.00146,956.86744.003,647.00145,060.68 0.000.000.00851,871.504,184,473.80160,614,221.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millstone Unit 3 operated at or near 100% power for the month of May, 2008.

RPT_PERIOD:200806UNIT_NME:Millstone Unit 3 DOCKET:423 OPERATING DATA REPORTPREPARER NAME:K. CookPREPARER TELEPHONE:860-447-1791 X6572 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1156.52. Maximum Dependable Capacity (MWe-Net)1148720.004,367.00147,676.86720.004,367.00145,780.68 0.000.000.00817,930.805,002,404.60161,432,152.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Millstone Unit 3 operated at or near 100% power for the month of June until June 7, 2008 at 0952 hours0.011 days 0.264 hours 0.00157 weeks 3.62236e-4 months when the unit reduced load to approximately 92% power to repair the fourth point feedwater heater normal level control valve. The plant was returned to 100% power at 2254 hours0.0261 days 0.626 hours 0.00373 weeks 8.57647e-4 months the same day. On June 8, 2008 at 1235 hours0.0143 days 0.343 hours 0.00204 weeks 4.699175e-4 months , the unit reduced load to approximately 94% power to repair the "B" moisture separator reheater drain tank level control valve. The unit was back at 100% power on June 9, 2008 at 0147 hours0.0017 days 0.0408 hours 2.430556e-4 weeks 5.59335e-5 months . Millstone Unit 3 continued to run at or near 100% power for the remainder of June, 2008.

RPT_PERIOD:200804UNIT_NME:Monticello Unit 1 DOCKET:263 OPERATING DATA REPORTPREPARER NAME:Jody HellandPREPARER TELEPHONE:763-295-1333 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6002. Maximum Dependable Capacity (MWe-Net)578.1720.002,903.00272,547.20720.002,903.00268,896.11 0.000.000.00425,502.001,716,834.00141,249,494.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated continuously during the month with no unplanned power reductions greater than or equal to 20% of rated thermal power.

RPT_PERIOD:200805UNIT_NME:Monticello Unit 1 DOCKET:263 OPERATING DATA REPORTPREPARER NAME:Jody I HellandPREPARER TELEPHONE:763-295-1333 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6002. Maximum Dependable Capacity (MWe-Net)578.1744.003,647.00273,291.20744.003,647.00269,640.11 0.000.000.00436,396.002,153,230.00141,685,890.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated continuously during the month with no unplanned power reductions greater than or equal to 20% of rated thermal power.

RPT_PERIOD:200806UNIT_NME:Monticello Unit 1 DOCKET:263 OPERATING DATA REPORTPREPARER NAME:Jody I HellandPREPARER TELEPHONE:763-295-1333 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6002. Maximum Dependable Capacity (MWe-Net)578.1720.004,367.00274,011.20720.004,367.00270,360.11 0.000.000.00415,071.002,568,301.00142,100,961.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated continuously during the month with no unplanned power reductions greater than or equal to 20% of rated thermal power.

RPT_PERIOD:200804UNIT_NME:Nine Mile Point Unit 1 DOCKET:220 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6132. Maximum Dependable Capacity (MWe-Net)565720.002,903.00248,553.47720.002,903.00243,694.04 0.000.0020.40450,776.831,819,618.23137,790,769.51This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Nine Mile Point Unit #1 operated with an availability factor of 100% for the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Nine Mile Point Unit 1 DOCKET:220 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6132. Maximum Dependable Capacity (MWe-Net)565744.003,647.00249,297.47744.003,647.00244,438.04 0.000.0020.40459,760.412,279,378.64138,250,529.92This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Nine Mile Point Unit One operated with an availability factor of 100% for the month of May, 2008. On 5/3/2008 at 0805 hours0.00932 days 0.224 hours 0.00133 weeks 3.063025e-4 months Operations commenced a down power to approximately 68.1% for rod seqence exchange. After completion the unit was returned to rated power at 2250 5/3/08. On 5/13/2008 at 0806 hours0.00933 days 0.224 hours 0.00133 weeks 3.06683e-4 months operations commenced a down power to approximately 86.64% due to loss of off site power. After restoration of off site power unit was returned to rated power at 1430 5/13/08. On 5/21/2008 at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months Operations commenced a down power to approximately 87.38% for returning Reactor Recirc Motor Generator #15 to service. After starting of MG unit returned to rated power at 0021 5/22/08.

RPT_PERIOD:200806UNIT_NME:Nine Mile Point Unit 1 DOCKET:220 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6132. Maximum Dependable Capacity (MWe-Net)565720.004,367.00250,017.47720.004,367.00245,158.04 0.000.0020.40433,605.502,712,984.14138,684,135.42This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 maintained a 100% availability factor for June 2008. Unit 1 commenced a planned downpower to approximately 96.1% at 2020 on 6/13/08 for Quarterly Turbine Testing. Unit 1 returned to rated power at 2200 6/13/08. Unit 1 commenced a planned downpower (per 99-02) to approximately 91.72% at 1400 on 6/22/08 to secure Reactor Recirc Motor Generator 15# for maintenance. Unit 1 returned to rated power at 1508 6/22/08 following completion of repairs. Unit 1 commenced a planned downpower (per 99-02) to approximately 85.81% at 1400 on 6/28/08 to restart Reactor Recirc Motor Generator 15# following maintenance. Unit 1 returned to rated power at 1509 6/28/08 following completion of repairs.

RPT_PERIOD:200804UNIT_NME:Nine Mile Point Unit 2 DOCKET:410 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1143.32. Maximum Dependable Capacity (MWe-Net)1119.8353.432,298.15146,635.24329.532,274.25143,516.36 0.000.000.00337,772.502,555,561.64153,536,093.56This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

NMP Unit 2 went critical at 0634 on 4/16/08. Breaker closure occured at 0628 4/17/08. Turbine tripped 0741 4/17/08 due to control oil leakage. Re-sequenced to grid at 1706 4/17/08. 100% power level was achieved at 09:15 4/19/08. On April 20, 2008 at 0039 hours4.513889e-4 days 0.0108 hours 6.448413e-5 weeks 1.48395e-5 months a planned power reduction to approximately 71.6% power was performed for control rod pattern adjustment. After completion of the rod pattern adjustment full power operation was restored at 15:47 hours on April 20, 2008. RFO1 13/22/2008S 390.47C4Shutdown for RFO11 commenced at 1900 3/21/2008, breaker opening occured 0143 3/22/08 and continued to be open through remainder of month. Generator was synchronized to the grid at 06:28 4/17/08. Turbine tripped during at 07:41 4/17/08. Turbine resequenced to the grid at 17:06 4/17/08.

RPT_PERIOD:200805UNIT_NME:Nine Mile Point Unit 2 DOCKET:410 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1143.32. Maximum Dependable Capacity (MWe-Net)1119.8744.003,042.15147,379.24744.003,018.25144,260.36 0.000.000.00845,828.573,401,390.21154,381,922.13This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Nine Mile Point Unit #2 operated with an availability factor of 100% for the month of May 2008. Unit 2 commenced a planned downpower to approximately 68.61% at 0800 on 5/31/08 for sequence exchange and scram timing. Unit 2 returned to rated power at 0446 6/1/08.

RPT_PERIOD:200806UNIT_NME:Nine Mile Point Unit 2 DOCKET:410 OPERATING DATA REPORTPREPARER NAME:MunyanPREPARER TELEPHONE:3153491914 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1143.32. Maximum Dependable Capacity (MWe-Net)1119.8720.003,762.15148,099.24720.003,738.25144,980.36 0.000.000.00808,238.204,209,628.41155,190,160.33This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Nine Mile Point Unit #2 operated with an availability factor of 100% for the month of June 2008. Unit 2 commenced a planned downpower to approximately 68.61% at 0800 on 5/31/08 for sequence exchange and scram timing. Unit 2 returned to rated power at 0446 6/1/08. Unit 2 commenced an unplanned downpower to approximately 91.62% at 0320 on 6/15/08 due to failure of normal level control valve for 2FWS-E6B. Unit 2 returned to rated power at 1320 6/15/08 following completion of repairs. Unit 2 commenced an unplanned downpower to approximately 78.48% at 1955 on 6/24/08 due to loss of feed heating in 2FWS-E6B from a failed level switch. Unit 2 returned to rated power at 1600 6/25/08 following completion of repairs.

RPT_PERIOD:200804UNIT_NME:North Anna Unit 1 DOCKET:338 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903720.002,903.00217,823.15720.002,903.00214,381.24 0.000.000.00659,998.482,659,017.36186,030,915.98This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @100% power, 966 MWe. On 4-11-8 @ 2300 commence ramping down to support the performance of Turbine Valve Freedom Test (TVFT). On 4-11-8 @ 2356 Holding @ 91% power, 890 MWe for the performance of TVFT. On 4-12-8 @ 0022 TVFT completed satisfactory. Commence power increase to 100%. On 4-12-8 @ 0212 unit is at 100% power, 952 MWe. Ended the Month @ 100% power, 967 MWe.

RPT_PERIOD:200805UNIT_NME:North Anna Unit 1 DOCKET:338 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903744.003,647.00218,567.15744.003,647.00215,125.24 0.000.000.00680,321.373,339,338.73186,711,237.35This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @ 100% Power, 967 MWe. Ended the Month @ 100% Power, 966 MWe.

RPT_PERIOD:200806UNIT_NME:North Anna Unit 1 DOCKET:338 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903720.004,367.00219,287.15720.004,367.00215,845.24 0.000.000.00653,717.223,993,055.95187,364,954.57This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @ 100% Power, 966 MWe. Ended the Month @ 100% Power, 958 MWe.

RPT_PERIOD:200804UNIT_NME:North Anna Unit 2 DOCKET:339 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903720.002,702.92206,650.25720.002,694.63205,132.69 0.000.000.00656,688.532,437,872.11179,408,086.08This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @ 100% Power, 961 MWe. Ended the Month @ 100% Power, 966 MWe.

RPT_PERIOD:200805UNIT_NME:North Anna Unit 2 DOCKET:339 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903744.003,446.92207,394.25744.003,438.63205,876.69 0.000.000.00677,570.553,115,442.66180,085,656.63This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @ 100% Power, 966 MWe. On 5-8-08 @ 1207, 2-SD-P-1C tripped on low level (945 MWe). Ended the Month @ 100% Power, 960 MWe.

RPT_PERIOD:200806UNIT_NME:North Anna Unit 2 DOCKET:339 OPERATING DATA REPORTPREPARER NAME:W.C.BeasleyPREPARER TELEPHONE:540-894-2520 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9132. Maximum Dependable Capacity (MWe-Net)903720.004,166.92208,114.25720.004,158.63206,596.69 0.000.000.00650,412.683,765,855.34180,736,069.31This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began the Month @ 100% Power, 960 MWe. Ended the Month @ 100% Power, 956 MWe.

RPT_PERIOD:200804UNIT_NME:Oconee Unit 1 DOCKET:269 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846265.372,448.37244,503.99264.022,447.02240,672.56 0.000.000.00164,345.001,878,742.00197,153,058.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit One was at 73% Power at the beginning of April, 2008 due to the unit operating with only three Reactor Coolant Pumps. On 4/11/08, at 20:18 Reactor Power was decreased from 73% FP per OP/1/A/1102/004 (Operations at Power) for the Unit 1 Shutdown at the End of Cycle (EOC) 24. The Reactor Power decrease was stopped at 18% FP per OP/1/A/1102/004 in order to place the Unit 1 turbine offline at 23:08. The Unit 1 Turbine was placed off-line per OP/1/A/1106/001 (Turbine Generator) on 4/12/08 at 00:01. The Reactor Power decrease was resumed from 18% FP per OP/1/A/1102/010 at 00:46. The Unit 2 reactor was tripped from 2.48% FP per OP/1/A/1102/010 at 01:22.34/12/2008S 455.98C1O1EOC24 Refueling Outage RPT_PERIOD:200805UNIT_NME:Oconee Unit 1 DOCKET:269 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)84617.832,466.20244,521.820.002,447.02240,672.56 0.000.000.000.001,878,742.00197,153,058.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 was at 0% FP at the beginning of May due to the O1EOC24 refueling outage. On 5/31/08 at 06:10, the Unit 1 reactor was made critical per PT/0/A/0711/001(Zero Power Physics Test). Began Reactor Power increase from 0% Full Power (FP) per OP/1/A/1102/001(Controlling Procedure for Unit Startup) at 17:38. The Reactor Power increase was stopped at 3% FP per OP/1/A/1102/001 in order to place the ICS in automatic at 18:05. Began Reactor Power increase from 3% FP per OP/1/A/1102/001 at 19:47. The Reactor Power increase was stopped at 6% FP per OP/1/A/1102/001 to allow operator training at 19:58. Began Reactor Power increase from 6% FP per OP/1/A/1102/001at 20:12. The Reactor Power increase was stopped at 12% FP per OP/1/A/1102/001 to allow operator training at 20:34. Began Reactor Power increase from 12% FP per OP/1/A/1102/001 at 20:46. The Reactor Power increase was stopped at 18.4% FP per OP/1/A/1102/001 to allow operator training at 21:10. Began Reactor Power increase from 18.4% FP per OP/1/A/1102/001 at 21:23. The Reactor Power increase was stopped at 19.5% FP pe r OP/1/A/1102/001 and lowered so not to go above 20% FP prior to performing PT/0/A/0302/006 to verify that the incore detectors are operable at 21:34. The Reactor Power decrease was stopped at 19.1% FP per OP/1/A/1102/001 to place the Unit 1 turbine on line at 21:42.Unit 1 was still in the O1EOC24 outage at the end of May, 200834/12/2008S 744.00C4O1EOC24 Refueling Outage RPT_PERIOD:200806UNIT_NME:Oconee Unit 1 DOCKET:269 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846720.003,186.20245,241.82700.553,147.57241,373.11 0.000.000.00578,828.002,457,570.00197,731,886.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit One was at 19% FP during O1C25 startup at the beginning of June, 2008. Major delays impacting the U1EOC24 refueling outage includes Reactor Coolant Pump seal work affecting the fill of the Reactor Coolant System following the unit shutdown (71 hours8.217593e-4 days 0.0197 hours 1.173942e-4 weeks 2.70155e-5 months ) and the development, implementation, and repair of RCP seal modification packages (328 hours0.0038 days 0.0911 hours 5.42328e-4 weeks 1.24804e-4 months ). The total delay time incurred during the O1EOC24 refueling outage, including all other miscellaneous time delays totals 548 hours0.00634 days 0.152 hours 9.060847e-4 weeks 2.08514e-4 months . On 6/01/08 at 01:09, Reactor Power was decreased from 19% FP to 18% FP as the Steam Generator Master and Reactor Master ICS control stations tripped to hand. Reactor power was stabilized at 18.2% with the ICS in automatic. Began Reactor Power increase from 18.2% Full Power (FP) per OP/1/A/1102/001(Controlling Procedure for Unit Startup) at 10:24. The Reactor Power increase was stopped at 19.5% FP per OP/1/A/1102/001 in order to perform an NI calibration at 10:35. Reactor Power stabilized at 19.3% FP. The Unit 1 turbine was placed on-line per OP/1/A/1106/001 at 18:29.On 6/02/08 at 04:27, the Reactor Power increase resumed from 19.3% FP per OP/1/A/1102/001. The Reactor Power increase was stopped at 22% FP to perform enclosure 4.21 (Unit Startup from Mode 1) of OP/1/A/1102/001at 04:49. Began Reactor Power increase from 22% FP per OP/1/A/1102/001at 04:56. The Reactor Power increase was stopped at 30% FP per OP/1/A/1102/004 and for Let Down Storage Tank Makeup at 05:23. Began Reactor Power increase from 30% FP per OP/1/A/1102/004 (Operation at Power) at 10:29. The Reactor Power increase was stopped at 40% FP per OP/1/A/1102/004 to perform a Steam extraction Check Valve 40% Core Thermal Power test per PT/1/A/0290/012 at 11:35. Began Reactor Power increase from 40% FP per OP/1/A/1102/004 at 12:49.The Reactor Power increase was stopped at approximately 45% FP per OP/1/A/1102/004 for Let Down Storage Tank Makeup and to start the second CBP at 13:18. Began Reactor Power increase from ~45% FP per OP/1/A/1102/004 at 14:08. The Reactor Power increase was stopped at 50% FP per OP/1/A/1102/004 to change the rate of power escalation at 14:34. Began Reactor Power increase from 50% FP per OP/1/A/1102/004 at 15:17. The Reactor Power increase was stopped at ~53.5% FP per OP/1/A/1102/004 for LDST makeup at 16:05. Reactor Power stabilized at 53.87% FP. Began Reactor Power increase from 53.87% FP per OP/1/A/1102/004 at 16:20. The Reactor Power increase was stopped at ~58% FP per OP/1/A/1102/004 for LDST makeup at 17:21.

Began Reactor Power increase from 58% FP per OP/1/A/1102/004 at 17:42. The Reactor Power increase was stopped at 60% FP per OP/1/A/1102/004 for Reactor Coolant System (RCS) deboration at 18:03. Began Reactor Power increase from 60% FP per OP/1/A/1102/004 at 18:30. The Reactor Power increase was stopped at 61% FP per OP/1/A/1102/004 for RCS deboration at 19:00.Began Reactor Power increase from 61% FP per OP/1/A/1102/004 at 19:12. The Reactor Power increase was stopped at 70% FP per OP/1/A/1102/004 in order to position group 8 Axial Power Shaping Rods for PIDC testing at 20:58. Began Reactor Power increase from 70% FP per OP/1/A/1102/004 at 21:16. The Reactor Power increase was stopped at 73% FP per OP/1/A/1102/004 in order to perform PIDC testing at 21:56.Began Reactor Power increase from 73% FP per OP/1/A/1102/004 at 17:36 on 6/3/08. The Reactor Power increase was stopped at 89.5% FP per OP/1/A/1102/004 in order to change the power escalation rate and to evaluate the need for an NI calibration at 21:29.

Began Reactor Power increase from 89.5% FP per OP/1/A/1102/004 at 22:06.The Reactor Power increase was stopped at 97% FP per OP/1/A/1102/004 to perform an NI calibration at 01:09 on 06/04/08.Began Reactor Power increase from 97% FP per OP/1/A/1102/004 at 04:12. The Reactor Power increase was stopped at 99.5% FP for a slow approach to 100% FP per OP/1/A/1102/004 at 05:10. Began Reactor Power increase from 99.5% FP per OP/1/A/1102/004 at 05:26. Unit 1 Reactor Power reached 100% FP and stabilized at 06:45.34/12/2008S 18.48C4O1EOC24 Refueling Outage16/2/2008S 0.97B5The Unit 1 turbine is taken off line to perform over speed trip testing following the O1C25 refueling outage RPT_PERIOD:200804UNIT_NME:Oconee Unit 2 DOCKET:270 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846693.222,866.09243,925.59680.102,852.97241,013.94 0.000.000.00583,085.002,484,169.00197,288,511.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit Two was at 0% power at the beginning of April, 2008 due to a reactor trip that occurred on 3/31/08. On 4/02/08 at 02:47, the Unit 2 reactor became critical. Began Reactor Power increase from 0% Full Power (FP) per OP/2/A/1102/001(Controlling Procedure for Unit Startup) at 02:58. The Reactor Power increase was stopped at 19.6% FP in order to place the Unit 2 turbine online per OP/2/A/1102/001 at 05:17. The Unit 2 turbine was placed on-line at 15:54. Began Reactor Power increase from 19.6% FP per OP/2/A/1102/001 at 16:45. The Reactor Power increase was stopped at 26% FP in order to complete an extraction valve alignment at 17:22. Began Reactor Power increase from 26% FP per OP/2/A/1102/001 at 20:45. The Reactor Power increase was stopped at 40% FP per OP/2/A/1102/004 (Operation at Power) in order t o complete a steam extraction check valve test per PT/2/A/0290/012 and to start the 2B condensate booster pump at 21:56. Began Reactor Power increase from 40% FP per OP/2/A/1102/004 at 22:15. The Reactor Power increase was stopped at 58% FP due to the unavailability of the standby condensate booster pump at 23:45. On 4/03/08 at 09:39, Reactor Power was increased from 58% FP per OP/2/A/1102/004. The Reactor Power increase was stopped at 61.5% FP due to an unexpected response with 2A Main Steam Drain Tank level at 09:54.

Began Reactor Power increase from 61.5% FP per OP/2/A/1102/004 at 10:39. The Reactor Power increase was stopped at 90% FP per OP/2/A/1102/004 to evaluate the need for an NI calibration at 13:02. Began Reactor Power increase from 90% FP per OP/2/A/1102/004 at 16:58. The Reactor Power increase was stopped at 99.5% FP per OP/2/A/1102/004 for a slow approach to 100% FP at 18:33. Began Reactor Power increase from 99.5% FP per OP/2/A/1102/004 at 19:05. The Power escalation was completed with Unit 2 Reactor Power at 100% FP at 19:07. 13/31/2008F 39.90A4The Unit 2 Turbine Trip originated from calibration of the condenser pressure transmitter which caused a loss of vacuum on the impulse line common to the Turbine Trip switches. The trip of the Unit 2 Turbine actuated an automatic reactor scram.

RPT_PERIOD:200805UNIT_NME:Oconee Unit 2 DOCKET:270 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846744.003,610.09244,669.59744.003,596.97241,757.94 0.000.000.00643,825.003,127,994.00197,932,336.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Oconee Unit 2 DOCKET:270 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846720.004,330.09245,389.59720.004,316.97242,477.94 0.000.000.00623,299.003,751,293.00198,555,635.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Oconee Unit 3 DOCKET:287 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846720.002,903.00236,203.93720.002,903.00233,178.40 0.000.000.00631,889.002,546,947.00193,923,770.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Oconee Unit 3 DOCKET:287 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846744.003,647.00236,947.93744.003,647.00233,922.40 0.000.000.00651,664.003,198,611.00194,575,434.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Oconee Unit 3 DOCKET:287 OPERATING DATA REPORTPREPARER NAME:Judy SmithPREPARER TELEPHONE:864-885-4309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8862. Maximum Dependable Capacity (MWe-Net)846720.004,367.00237,667.93720.004,367.00234,642.40 0.000.000.00627,213.003,825,824.00195,202,647.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Oyster Creek Unit 1 DOCKET:219 OPERATING DATA REPORTPREPARER NAME:Roger B. GayleyPREPARER TELEPHONE:(609) 971-4406 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6502. Maximum Dependable Capacity (MWe-Net)619656.672,839.67254,406.03641.782,824.78249,914.90 0.000.00918.20356,828.001,603,697.00143,942,796.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Planned Maintenance Outage (1M16) 4/26/08 00:00 to 4/29//08 06:13.1M164/26/2008S 78.22B21M16 was taken to repair the turbine controls so that full power operation could resume. Also to verify oil level in the 'B' recirc pump to prove the alarm was valid.

RPT_PERIOD:200805UNIT_NME:Oyster Creek Unit 1 DOCKET:219 OPERATING DATA REPORTPREPARER NAME:Roger GayleyPREPARER TELEPHONE:(609) 971-4406 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6502. Maximum Dependable Capacity (MWe-Net)619744.003,583.67255,150.03744.003,568.78250,658.90 0.000.00918.20459,296.002,062,993.00144,402,092.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

A planned power reduction was performed for Core Spray surveillance and a planned CRD scram test and an unplanned power reduction was performed to address failure of a condenser backwash valve to fully open.

RPT_PERIOD:200806UNIT_NME:Oyster Creek Unit 1 DOCKET:219 OPERATING DATA REPORTPREPARER NAME:Roger B. GayleyPREPARER TELEPHONE:(609) 971-4406 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6502. Maximum Dependable Capacity (MWe-Net)619720.004,303.67255,870.03720.004,288.78251,378.90 0.000.00918.20434,294.002,497,287.00144,836,386.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

A planned power reduction was performed for core adjustments. An unplanned power reduction was performed to address turbine control valve oscillations that occurred during turbine control valve testing.

RPT_PERIOD:200804UNIT_NME:Palisades Unit 1 DOCKET:255 OPERATING DATA REPORTPREPARER NAME:GT WigginsPREPARER TELEPHONE:(269) 764-2497 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8052. Maximum Dependable Capacity (MWe-Net)730720.002,868.20211,187.19720.002,861.20205,292.98 0.000.000.00579,785.982,297,527.98144,258,349.16This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Palisades operated the entire month of April 2008 at essentially full power.

RPT_PERIOD:200805UNIT_NME:Palisades Unit 1 DOCKET:255 OPERATING DATA REPORTPREPARER NAME:Tyler DiLeoPREPARER TELEPHONE:2697642194 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8052. Maximum Dependable Capacity (MWe-Net)730718.083,586.28211,905.27706.533,567.73205,999.51 0.000.000.00556,358.312,853,886.29144,814,707.47This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Palisades operated from the beginning of the month at essentially full power. On 05/23/2008 at 12:49 the reactor automatically tripped from full power. The cause of the trip was a loss of load signal supplied by a failed Generator Negative Phase Sequence Relay. Criticality following the trip was on 05/24/2008 at 14:45 with generator sychronization occurring on 05/25/2008 at 02:17. Full power was achieved on 05/26/2008 at 01:50 and was maintained for the remainder of the month.25/23/2008F 37.47A3Palisades tripped from full power at 1249, Friday, May 23rd, as a result of a generator protective relay actuation. This caused a loss of load signal to be received in the control room, tripping the reactor and turbine generator. Generator Negative Phase Sequence Relay (346 Relay) actuated without a valid input signal and was determined to be faulty by Electrical Maintenance. All rods inserted into the reactor as designed. All safety systems operated as designed.

RPT_PERIOD:200806UNIT_NME:Palisades Unit 1 DOCKET:255 OPERATING DATA REPORTPREPARER NAME:TH WoodyPREPARER TELEPHONE:269-764-2707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8052. Maximum Dependable Capacity (MWe-Net)730720.004,306.28212,625.27720.004,287.73206,719.51 0.000.000.00567,071.003,420,957.29145,381,778.47This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Palisades operated at essentially full power for the entire reporting period.

RPT_PERIOD:200804UNIT_NME:Palo Verde Unit 1 DOCKET:528 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13332. Maximum Dependable Capacity (MWe-Net)1311720.002,904.00152,035.43720.002,904.00150,289.39 0.000.000.00950,539.323,847,908.49180,261,066.71This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 1: RX power at full power. Ended month in Mode 1: RX power at full power.

RPT_PERIOD:200805UNIT_NME:Palo Verde Unit 1 DOCKET:528 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13332. Maximum Dependable Capacity (MWe-Net)1311744.003,648.00152,779.43744.003,648.00151,033.39 0.000.000.00984,719.794,832,628.28181,245,786.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 1: RX power at full power. Ended month in Mode 1: RX power at full power.

RPT_PERIOD:200806UNIT_NME:Palo Verde Unit 1 DOCKET:528 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13332. Maximum Dependable Capacity (MWe-Net)1311667.084,315.08153,446.51652.054,300.05151,685.44 0.000.000.00834,818.725,667,447.00182,080,605.22This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month in Mode 1 with the reactor at full power. On June 5th at 2356 the unit commenced a RX downpower due to a nitrogen leak on 1A safety injection tank (SIT) and manually shutdown the reactor on June 6th at 0148. Repairs were completed and the unit entered Mode 2 on June 8th at 0601, went critical at 0643, entered Mode 1 at 1300 and was synchronized to the grid at 2145. The unit reach full power on June 10th at 0524. The unit ended the month in Mode 1 with the reactor at full power. 08-016/6/2008F 67.95A1The unit was downpowered and manually shutdown due to 1A safety injection tank nitrogen leak.

RPT_PERIOD:200804UNIT_NME:Palo Verde Unit 2 DOCKET:529 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13362. Maximum Dependable Capacity (MWe-Net)13140.002,112.00154,497.610.002,112.00152,849.39 0.000.000.000.002,828,429.01189,071,587.51This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 5 in a continuation of the 14th refueling outage. The unit entered Mode 6 on April 3rd. Core offload began on April 7th and it was completed on April 9th. Ended the month with the RX defueled. 08-013/29/2008S 720.00C4Manually tripped the RX from 24% power to commence U2R14.

RPT_PERIOD:200805UNIT_NME:Palo Verde Unit 2 DOCKET:529 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13362. Maximum Dependable Capacity (MWe-Net)131439.702,151.70154,537.310.002,112.00152,849.39 0.000.000.000.002,828,429.01189,071,587.51This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month with the RX defueled in 14th refueling outage. The unit entered Mode 6 on May 8th, Mode 5 on May 14th, Mode 4 on May 22nd, and Mode 3 on May 23rd. On May 28th the unit entered Mode 2, went critical at 1139 but was manually tripped at 2134 following the unexpected drop of four control element assemblies during low power physics testing. The unit re-entered Mode 2 on May 30th and went critical at 1813. The unit entered Mode 1 on May 31st and reached 12% RX power at 2102. Ended month in Mode 1: RX power at 12%. 08-013/29/2008S 744.00C4Manually tripped the RX from 24% power to commence U2R14.

RPT_PERIOD:200806UNIT_NME:Palo Verde Unit 2 DOCKET:529 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13362. Maximum Dependable Capacity (MWe-Net)1314647.922,799.62155,185.23612.002,724.00153,461.39 0.000.000.00713,824.643,542,253.65189,785,412.15This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month in Mode 1 with the reactor at 12% power in an extension of the 14th refueling outage. On June 1st at 1707 the reactor was manually shutdown to make repairs on the main turbine mechanical overspeed trip mechanism. On June 4th at 1630 the unit entered Mode 2 and went critical at 1712. On June 5th at 0145 the unit entered Mode 1, was synchronized to the grid at 0950, and the turbine was tripped at 1512 for planned overspeed testing. The unit was re-synchronized to the grid at 1722 after successful completion of the overspeed test. The unit reached full power on June 9 at 1130 and ended the month in Mode 1 with the reactor at full power.08-013/29/2008S 105.83C4Manually tripped the RX from 24% power to commence U2R14.08-026/5/2008S 2.17B5Tripped the main turbine for overspeed testing.

RPT_PERIOD:200804UNIT_NME:Palo Verde Unit 3 DOCKET:530 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13392. Maximum Dependable Capacity (MWe-Net)1317720.002,558.28148,515.93720.002,476.13147,122.81 0.000.000.00957,680.913,176,881.94179,955,552.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 1: RX power at full power. Ended month in Mode 1: RX power at full power.

RPT_PERIOD:200805UNIT_NME:Palo Verde Unit 3 DOCKET:530 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13392. Maximum Dependable Capacity (MWe-Net)1317744.003,302.28149,259.93744.003,220.13147,866.81 0.000.000.00986,139.284,163,021.22180,941,691.68This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 1: RX power at full power. Ended month in Mode 1: RX power at full power.

RPT_PERIOD:200806UNIT_NME:Palo Verde Unit 3 DOCKET:530 OPERATING DATA REPORTPREPARER NAME:Kevin SweeneyPREPARER TELEPHONE:623-393-5049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:13392. Maximum Dependable Capacity (MWe-Net)1317720.004,022.28149,979.93720.003,940.13148,586.81 0.000.000.00950,615.445,113,636.66181,892,307.12This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Began month in Mode 1: RX power at full power. Ended month in Mode 1: RX power at full power.

RPT_PERIOD:200804UNIT_NME:Peach Bottom Unit 2 DOCKET:277 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:(717) 456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112720.002,903.00226,395.91720.002,903.00221,779.03 0.000.000.00819,253.603,312,084.80223,963,378.90This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of April at 100% of maximum allowable power (3514 MWth). At 23:01 on April 4th, Unit 2 commenced a planned load reduction to 79.6% for Main Turbine Valve testing and Rod Sequence Exchange. Min power level was reached on April 5th at 01:02. The unit returned to full power at 18:05 on April 5th.At 23:07 on April 28th, Unit 2 commenced a planned load reduction to 97.0% for HCU Maintenance rod insertion. Min power level was reached on April 28th at 23:35. The unit returned to full power at 00:14 on April 29th.Unit 2 accrued 846 Mwe-hrs of forced losses during the month of April 2008 due to condenser waterbox fouling.Unit 2 ended the month of April at 100% of maximum allowable power (3514 MWth).

RPT_PERIOD:200805UNIT_NME:Peach Bottom Unit 2 DOCKET:277 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:(717) 456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112744.003,647.00227,139.91744.003,647.00222,523.03 0.000.000.00835,012.104,147,096.90224,798,391.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of May at 100% of maximum allowable power (3514 MWth). At 23:01 on May 2nd, Unit 2 commenced a planned load reduction to 56.1% for Summer Readiness prep activities and waterbox cleaning. Min power level was reached on May 3rd at 05:21. The unit returned to full power at 18:46 on May 4th.At 00:01 on May 10th, Unit 2 commenced a planned load reduction to 74.1% for follow up Rod Pattern Adjustment. Min power level was reached on May 10th at 02:03. The unit returned to full power at 23:13 on May 10th.Unit 2 ended the month of May at 100% of maximum allowable power (3514 MWth).

RPT_PERIOD:200806UNIT_NME:Peach Bottom Unit 2 DOCKET:277 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:717-456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112720.004,367.00227,859.91720.004,367.00223,243.03 0.000.000.00804,510.204,951,607.10225,602,901.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 began the month of June at 100% of maximum allowable power (3514 MWth). At 23:04 on June 7th, Unit 2 commenced a planned load reduction to 92.0% for Main Turbine valve testing. Min power level was reached on June 7th at 23:49. The unit returned to full power at 00:57 on June 8th.At 00:42 on June 19th, Unit 2 Recirculation pump speed was maximized. Unit 2 began to drift below 100% Core Thermal Power on the 20th at 03:49. Unplanned power losses were experienced until a minimum power level of 99.3% was reached on June 21st at 23:01. At which time, Unit 2 entered a planned load reduction.At 23:02 on June 21st, Unit 2 commenced a planned load reduction to 64.8% for Rod Pattern Adjustment. Min power level was reached on June 21st at 23:52. The unit returned to full power at 22:04 on June 22nd.Unit 2 ended the month of June at 100% of maximum allowable power (3514 MWth).

RPT_PERIOD:200804UNIT_NME:Peach Bottom Unit 3 DOCKET:278 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:(717) 456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112720.002,866.85225,107.07720.002,848.58221,025.61 0.000.000.00820,785.603,199,316.80222,048,076.90This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no planned or unplanned load reductions on Unit 3 during the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Peach Bottom Unit 3 DOCKET:278 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:(717) 456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112744.003,610.85225,851.07744.003,592.58221,769.61 0.000.000.00836,821.104,036,137.90222,884,898.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 3 began the month of May at 100% of maximum allowable power (3514 MWth).At 23:01 on May 12th, Unit 3 commenced a planned load reduction to 88.3% for insertion of HCU maintenance rods. Min power level was reached on May 12th at 23:35. The unit returned to full power at 03:27 on May 13th.At 22:59 on May 23rd, Unit 3 commenced a planned load reduction to 51.7% for Summer Readiness prep activities and waterbox cleaning. Min power level was reached on May 24th at 00:51. The unit returned to full power at 19:33 on May 24th.At 22:01 on May 24th, Unit 3 commenced an unplanned load reduction to 92.8% for Turbine Control Valve Testing. Min power level was reached on May 25th at 05:07. The unit returned to full power at 09:10 on May 25th.At 23:02 on May 28th, Unit 3 began to accrue unplanned (forced) losses for a follow up Rod Pattern Adjustment and Offgas System leak repair load reduction to 71.1%. Min power level was reached on May 29th at 00:05. The unit returned to full power at 07:42 on May 29 th.Unit 3 ended the month of May at 100.00% of maximum allowable power (3514 MWth).

RPT_PERIOD:200806UNIT_NME:Peach Bottom Unit 3 DOCKET:278 OPERATING DATA REPORTPREPARER NAME:Dana SuppleePREPARER TELEPHONE:717-456-4014 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11382. Maximum Dependable Capacity (MWe-Net)1112720.004,330.85226,571.07720.004,312.58222,489.61 0.000.000.00811,521.204,847,659.10223,696,419.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 3 began the month of June at 100% of maximum allowable power (3514 MWth).At 17:44 on June 15th, Unit 3 commenced an unplanned load reduction to 98.0% for elevated 3B Recirculating pump seal temperature. Min power level was reached on June 15th at 19:40. The unit returned to full power at 00:10 on June 16th.Unit 3 ended the month of June at 100.00% of maximum allowable power (3514 MWth).

RPT_PERIOD:200804UNIT_NME:Perry Unit 1 DOCKET:440 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12732. Maximum Dependable Capacity (MWe-Net)1245536.902,719.90145,414.66516.232,699.23142,181.48 0.000.000.00598,093.103,327,692.70164,883,145.80This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit was taken off-line for a planned outage to repair the hotwell pump discharge valve and complete other maintenance to ensure reliability during the summer generation season.14/4/2008S 203.77B1The unit was taken off-line for a planned outage to repair the hotwell pump discharge valve and complete other maintenance to ensure reliability during the summer generation season.

RPT_PERIOD:200805UNIT_NME:Perry Unit 1 DOCKET:440 OPERATING DATA REPORTPREPARER NAME:Glenn MitchellPREPARER TELEPHONE:330-384-5027 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12732. Maximum Dependable Capacity (MWe-Net)1245744.003,463.90146,158.66744.003,443.23142,925.48 0.000.000.00940,362.304,268,055.00165,823,508.10This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at full power for the month of May except for a planned downpower for turbine valve testing.

RPT_PERIOD:200806UNIT_NME:Perry Unit 1 DOCKET:440 OPERATING DATA REPORTPREPARER NAME:Lawrence CriscionePREPARER TELEPHONE:330-384-4693 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12732. Maximum Dependable Capacity (MWe-Net)1245720.004,183.90146,878.66720.004,163.23143,645.48 0.000.000.00880,150.005,148,205.00166,703,658.10This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit derated 4 times due to higher than normal weather conditions in June. The cooling tower was operating at its design limits. The unit also downpowered to 59% power for a control rod pattern adjustment.

RPT_PERIOD:200804UNIT_NME:Pilgrim Unit 1 DOCKET:293 OPERATING DATA REPORTPREPARER NAME:Mary J. GatslickPREPARER TELEPHONE:508-830-8373 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6902. Maximum Dependable Capacity (MWe-Net)684.7686.802,869.80226,571.90673.502,856.50224,152.27 0.000.000.00448,711.021,949,452.85135,964,442.17This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the reporting period operating at 100% (2028MWt) reactor power. On 4/04/2008 at 2000 hours0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months , a planned manual shutdown to replace the pilot valve associated with Safety Relief Valve 3C began. The reactor was taken critical at 1802 hours0.0209 days 0.501 hours 0.00298 weeks 6.85661e-4 months on 4/06/2008, and synchronized to the grid at 0557 hours0.00645 days 0.155 hours 9.209656e-4 weeks 2.119385e-4 months on 4/07/2008, and 100% reactor power (2028 MWt) was achieved at 0644 hours0.00745 days 0.179 hours 0.00106 weeks 2.45042e-4 months on 4/08/2008.

Additionally, on 4/08/08 a planned power reduction to about 62.8% began at 0722 hours0.00836 days 0.201 hours 0.00119 weeks 2.74721e-4 months for a control rod pattern exchange. The reactor was returned to 100 % power on 4/09/08 day at 1241 hours0.0144 days 0.345 hours 0.00205 weeks 4.722005e-4 months . The reactor operated at 100% power for the remainder for the reporting period.2008-014/5/2008S 46.50B1On 4/04/2008 at 2000 hours0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months , a planned manual shutdown to replace the pilot valve associated with Safety Relief Valve 3C took place. The reactor was taken critical at 1802 hours0.0209 days 0.501 hours 0.00298 weeks 6.85661e-4 months on 4/06/2008, and synchronized to the grid at 0557 hours0.00645 days 0.155 hours 9.209656e-4 weeks 2.119385e-4 months on 4/07/2008, and 100% reactor power (2028 MWt) was achieved at 0644 hours0.00745 days 0.179 hours 0.00106 weeks 2.45042e-4 months on 4/08/2008.

RPT_PERIOD:200805UNIT_NME:Pilgrim Unit 1 DOCKET:293 OPERATING DATA REPORTPREPARER NAME:Mary J. GatslickPREPARER TELEPHONE:508-830-8373 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6902. Maximum Dependable Capacity (MWe-Net)684.7744.003,613.80227,315.90744.003,600.50224,896.27 0.000.000.00506,840.632,456,293.48136,471,282.80This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the reporting period operating at 100% (2028 MWt) reactor power. A planned power reduction began on 5/04/08 at 1821 hours0.0211 days 0.506 hours 0.00301 weeks 6.928905e-4 months for a main condenser thermal backwash. The lowest reactor power during the power reduction was to about 47.8% and 100% reactor power was achieved on 5/05/08 at 0529 hours0.00612 days 0.147 hours 8.746693e-4 weeks 2.012845e-4 months . The reactor operated at 100% (2028 MWt) for the remainder of the reporting period.

RPT_PERIOD:200806UNIT_NME:Pilgrim Unit 1 DOCKET:293 OPERATING DATA REPORTPREPARER NAME:Mary J. GatslickPREPARER TELEPHONE:508-830-8373 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6902. Maximum Dependable Capacity (MWe-Net)684.7720.004,333.80228,035.90720.004,320.50225,616.27 0.000.000.00484,156.962,940,450.44136,955,439.76This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the reporting period operating at 100% (2028 MWt) reactor power. A planned power reduction began on 6/26/08 at 1047 hours0.0121 days 0.291 hours 0.00173 weeks 3.983835e-4 months for a thermal backwash of the 'B' Train of the main condenser. The lowest reactor power during the power reduction was to about 45% and 100% reactor power was achieved on 6/27/08 at 0613 hours0.00709 days 0.17 hours 0.00101 weeks 2.332465e-4 months . A planned power reduction began on 6/30/08 at 0653 hours0.00756 days 0.181 hours 0.00108 weeks 2.484665e-4 months for a thermal backwash of the 'A' Train of the main condenser. The lowest reactor power during the power reduction was to about 49% and 100% reactor power was achieved on 6/30/08 at 1557 hours0.018 days 0.433 hours 0.00257 weeks 5.924385e-4 months . The reactor operated at 100% (2028 MWt) for the remainder of the reporting period.

RPT_PERIOD:200804UNIT_NME:Point Beach Unit 1 DOCKET:266 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)516720.002,476.27273,544.78720.002,442.35269,801.94 0.000.00846.90371,207.001,252,116.50126,752,713.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Point Beach Unit 1 DOCKET:266 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)516744.003,220.27274,288.78744.003,186.35270,545.94 0.000.00846.90376,494.001,628,610.50127,129,207.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Point Beach Unit 1 DOCKET:266 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)516720.003,940.27275,008.78720.003,906.35271,265.94 0.000.00846.90368,424.501,997,035.00127,497,632.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Point Beach Unit 2 DOCKET:301 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)518116.082,299.08267,423.13115.322,298.32264,184.79 0.000.00302.2057,692.001,195,726.50125,941,899.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Refueling 29 began April 5, 2008.U2R294/5/2008S 604.68C1 RPT_PERIOD:200805UNIT_NME:Point Beach Unit 2 DOCKET:301 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)518547.132,846.21267,970.26469.252,767.57264,654.04 0.000.00302.20225,403.001,421,129.50126,167,302.50This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Refueling 29 outage extension included in reporting.U2R294/5/2008S 274.75C4 RPT_PERIOD:200806UNIT_NME:Point Beach Unit 2 DOCKET:301 OPERATING DATA REPORTPREPARER NAME:M. B. ArnoldPREPARER TELEPHONE:920-755-7657 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5222. Maximum Dependable Capacity (MWe-Net)518720.003,566.21268,690.26720.003,487.57265,374.04 0.000.00302.20376,590.501,797,720.00126,543,893.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Prairie Island Unit 1 DOCKET:282 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522720.002,012.34262,977.11720.001,965.32260,570.14 0.000.000.00381,922.00999,216.00131,308,611.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

During the month of April, Unit 1 was base loaded. There are no other items to report.

RPT_PERIOD:200805UNIT_NME:Prairie Island Unit 1 DOCKET:282 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522744.002,756.34263,721.11744.002,709.32261,314.14 0.000.000.00386,128.001,385,344.00131,694,739.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

During the month of May, Unit 1 was base loaded. There are no other items to report.

RPT_PERIOD:200806UNIT_NME:Prairie Island Unit 1 DOCKET:282 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522720.003,476.34264,441.11720.003,429.32262,034.14 0.000.000.00370,060.001,755,404.00132,064,799.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On June 4, reduced Reactor Power to <95% and secured 11HDTP (516MW) for 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months to replace 11 HDTP Packing. Reactor Power was raised to 99% (526MW) for 47 hours5.439815e-4 days 0.0131 hours 7.771164e-5 weeks 1.78835e-5 months to minimize derate. On June 7, reduced Reactor Power to <95% (513MW) for 8.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months to start 11 HDTP. There are no other items to report.

RPT_PERIOD:200804UNIT_NME:Prairie Island Unit 2 DOCKET:306 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522720.002,903.00261,449.59720.002,903.00259,552.19 0.000.000.00380,470.001,557,827.00130,913,758.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

During the month of April, Unit 2 was base loaded. There are no other items to report.

RPT_PERIOD:200805UNIT_NME:Prairie Island Unit 2 DOCKET:306 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522744.003,647.00262,193.59744.003,647.00260,296.19 0.000.000.00386,630.001,944,457.00131,300,388.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

During the month of May, Unit 2 was base loaded. There are no other items to report.

RPT_PERIOD:200806UNIT_NME:Prairie Island Unit 2 DOCKET:306 OPERATING DATA REPORTPREPARER NAME:Ron WhitlockPREPARER TELEPHONE:651-267-6042 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:5362. Maximum Dependable Capacity (MWe-Net)522720.004,367.00262,913.59720.004,367.00261,016.19 0.000.000.00373,176.002,317,633.00131,673,564.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

During the month of June, Unit 2 was base loaded. There are no other items to report RPT_PERIOD:200804UNIT_NME:Quad Cities Unit 1 DOCKET:254 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8662. Maximum Dependable Capacity (MWe-Net)866720.002,903.00253,870.15720.002,903.00248,255.16 0.000.001,655.20595,308.002,449,573.00169,965,848.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 began the month of April at full power. On April 11, 2008, a planned load drop to approximately 260 MWe commenced to repair a tube leak in the Unit 1 Main Condenser. During the load drop, an additional load drop to approximately 200 MWe was performed to support a containment entry to add oil to the 1A recirc lower motor bearing. The unit was returned to full power on April 14. On April 15, Unit 1 reduced power briefly to approximately 800 MWe for a planned Rod Shuffle and returned to power. Unit 1 remained at full power throughout the remainder of the month.

RPT_PERIOD:200805UNIT_NME:Quad Cities Unit 1 DOCKET:254 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8662. Maximum Dependable Capacity (MWe-Net)866744.003,647.00254,614.15744.003,647.00248,999.16 0.000.001,655.20640,594.003,090,167.00170,606,442.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 operated at full power throughout the month of May with two exceptions. On May 10, 2008, Unit 1 reduced power to approximately 400 MWe to support a planned load drop for offgas SJAE swap, Control Rod shuffle and Hot Scram timing. Unit 1 was returned to full power on May 11, 2008. On May 24, 2008, power was decreased to approximately 730 MWe to perform planned Turbine testing. Unit 1 was returned to full power on May 25, 2008, and remained at full power throughout the reporting period.

RPT_PERIOD:200806UNIT_NME:Quad Cities Unit 1 DOCKET:254 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8662. Maximum Dependable Capacity (MWe-Net)866720.004,367.00255,334.15720.004,367.00249,719.16 0.000.001,655.20621,036.003,711,203.00171,227,478.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 experienced an unplanned load drop on June 04, 2008, to approximately 750 MWe, due to a RFP seal leak. Unit 1 was returned to full power on June 05, 2008, and remained at full power throughout the reporting period.

RPT_PERIOD:200804UNIT_NME:Quad Cities Unit 2 DOCKET:265 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8712. Maximum Dependable Capacity (MWe-Net)871720.002,274.87246,297.17720.002,232.17241,298.20 0.000.002,312.90614,638.001,884,489.00171,607,749.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 entered the month of April increasing load in support of start up activities from Q2R19. On April 03, 2008, Unit 2 reached full power, and remained at full power throughout the reporting period.

RPT_PERIOD:200805UNIT_NME:Quad Cities Unit 2 DOCKET:265 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8712. Maximum Dependable Capacity (MWe-Net)871744.003,018.87247,041.17744.002,976.17242,042.20 0.000.002,312.90646,588.002,531,077.00172,254,337.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 operated at full power throughout the reporting period with one exception. On May 17, 2008, Unit 2 reduced power for a planned load drop to approximately 700 MWe to support Control Rod shuffle, Turbine testing and Hot Scram timing. Unit 2 was returned to full power on May 18, 2008, and remained at full power for the remainder of the reporting period.

RPT_PERIOD:200806UNIT_NME:Quad Cities Unit 2 DOCKET:265 OPERATING DATA REPORTPREPARER NAME:Debbie ClinePREPARER TELEPHONE:309-227-2801 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8712. Maximum Dependable Capacity (MWe-Net)871720.003,738.87247,761.17720.003,696.17242,762.20 0.000.002,312.90626,774.003,157,851.00172,881,111.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 operated at approximately 912 MWe throughout the reporting period. On June 18, 2008, a power ascension test to the licensed thermal power level was performed, which raised electrical output to approximately 940 MWe. Upon completion of the test, the unit was returned (June 18th) to approximately 912 MWe.

RPT_PERIOD:200804UNIT_NME:River Bend Unit 1 DOCKET:458 OPERATING DATA REPORTPREPARER NAME:Danny H. WilliamsonPREPARER TELEPHONE:225-381-4279 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9672. Maximum Dependable Capacity (MWe-Net)967720.001,509.63161,906.62720.001,408.58157,573.60 0.000.000.00712,112.001,177,131.00142,833,511.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:River Bend Unit 1 DOCKET:458 OPERATING DATA REPORTPREPARER NAME:Danny H. WilliamsonPREPARER TELEPHONE:225-381-4279 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9672. Maximum Dependable Capacity (MWe-Net)967744.002,253.63162,650.62744.002,152.58158,317.60 0.000.000.00720,704.001,897,835.00143,554,215.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:River Bend Unit 1 DOCKET:458 OPERATING DATA REPORTPREPARER NAME:Danny H. WilliamsonPREPARER TELEPHONE:225-381-4279 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:9672. Maximum Dependable Capacity (MWe-Net)967720.002,973.63163,370.62720.002,872.58159,037.60 0.000.000.00671,406.002,569,241.00144,225,621.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Robinson Unit 2 DOCKET:261 OPERATING DATA REPORTPREPARER NAME:Tim SurmaPREPARER TELEPHONE:843-857-1086 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7652. Maximum Dependable Capacity (MWe-Net)710720.002,903.00255,749.64720.002,903.00252,323.76 0.000.0023.20541,202.002,186,456.00168,256,784.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at approximately full power for the entire month.

RPT_PERIOD:200805UNIT_NME:Robinson Unit 2 DOCKET:261 OPERATING DATA REPORTPREPARER NAME:Tim SurmaPREPARER TELEPHONE:843-857-1086 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7652. Maximum Dependable Capacity (MWe-Net)710744.003,647.00256,493.64744.003,647.00253,067.76 0.000.0023.20554,155.002,740,611.00168,810,939.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at approximately full power for the entire month.

RPT_PERIOD:200806UNIT_NME:Robinson Unit 2 DOCKET:261 OPERATING DATA REPORTPREPARER NAME:Tim SurmaPREPARER TELEPHONE:843-857-1086 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7652. Maximum Dependable Capacity (MWe-Net)710720.004,367.00257,213.64720.004,367.00253,787.76 0.000.0023.20524,773.003,265,384.00169,335,712.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at approximately full power for the entire month.

RPT_PERIOD:200804UNIT_NME:Salem Unit 1 DOCKET:272 OPERATING DATA REPORTPREPARER NAME:Gary A. LoebPREPARER TELEPHONE:856.339.1049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1116720.002,897.02185,502.48720.002,888.92180,452.53 0.000.000.00844,147.003,361,593.00188,676,649.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

3606 MWh lost due to grid-related downpowers (500kV line issues and maintenance).

RPT_PERIOD:200805UNIT_NME:Salem Unit 1 DOCKET:272 OPERATING DATA REPORTPREPARER NAME:Gary A. LoebPREPARER TELEPHONE:856.339.1049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1116744.003,641.02186,246.48744.003,632.92181,196.53 0.000.000.00874,438.004,236,031.00189,551,087.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:Salem Unit 1 DOCKET:272 OPERATING DATA REPORTPREPARER NAME:Gary A. LoebPREPARER TELEPHONE:856.339.1049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1116720.004,361.02186,966.48720.004,352.92181,916.53 0.000.000.00838,918.005,074,949.00190,390,005.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Salem Unit 2 DOCKET:311 OPERATING DATA REPORTPREPARER NAME:Gary A. LoebPREPARER TELEPHONE:856.339.1049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)10880.001,699.00162,448.350.001,699.00158,582.67 0.000.000.000.001,915,751.00165,746,447.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Refuel outage S2R16 all month.S2R163/11/2008S 720.00C4Refuel Outage and Steam Generator replacement, continuing to May 2008.

RPT_PERIOD:200805UNIT_NME:Salem Unit 2 DOCKET:311 OPERATING DATA REPORTPREPARER NAME:Gary A. LoebPREPARER TELEPHONE:856.339.1049 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1088508.532,207.53162,956.88449.882,148.88159,032.55 0.000.000.00430,339.002,346,090.00166,176,786.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Refuel outage S2R16 ended 05/08/2008. Forced shutdown from 05/09/2008 to 05/10/2008 for low SG Level. Forced shutdown from 05/12/2008 to 05/16/2008 due to non-conservative steam flow measurement. Remainder of unplanned losses due to circulating water system problems and low steam generator pressures.

S2R08-015/9/2008F 28.17A2Turbine shutdown due to loss of all circulating water travelling screens. Reactor subsequently manually tripped due to high steam generator level.

S2F08-025/12/2008F 81.50H1Main steam flow measured was non-conservatively high during power ascension with relation to safety system action parameters. Unit was taken off-line to recalibrate and resolve flow error. See LER 311/2008-003-00 for details.S2R163/11/2008S 184.45C4Refuel Outage and Steam Generator replacement, continuing to May 2008.

RPT_PERIOD:200806UNIT_NME:Salem Unit 2 DOCKET:311 OPERATING DATA REPORTPREPARER NAME:Kevin M. HeckPREPARER TELEPHONE:856-339-1975 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1088720.002,927.53163,676.88720.002,868.88159,752.55 0.000.000.00823,341.003,169,431.00167,000,127.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:San Onofre Unit 2 DOCKET:361 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:9493686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10702. Maximum Dependable Capacity (MWe-Net)1070720.002,488.57177,831.24720.002,464.67175,436.97 0.000.000.00771,719.202,661,852.21188,850,897.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

4/1/08 Unit 2 in Mode 1. 4/30 Unit in Mode 1.

RPT_PERIOD:200805UNIT_NME:San Onofre Unit 2 DOCKET:361 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:(949)3686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10702. Maximum Dependable Capacity (MWe-Net)1070744.003,232.57178,575.24744.003,208.67176,180.97 0.000.000.00832,160.053,494,012.26189,683,057.25This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

5/1/08 Unit 2 in Mode 1. 5/31 Unit in Mode 1.

RPT_PERIOD:200806UNIT_NME:San Onofre Unit 2 DOCKET:361 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:(949)3686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10702. Maximum Dependable Capacity (MWe-Net)1070587.233,819.80179,162.47560.153,768.82176,741.12 0.000.000.00568,024.994,062,037.25190,251,082.24This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

6/1/08 Unit 2 in Mode 1. 6/1 01:38 Tripped Turbine. 6/1 01:47 Tripped Reactor. 6/2 23:49 Reactor Critical. 6/3 03:33 entered Mode 1. 6/3 14:57 Breakers Closed. 6/5 22:56 Reactor Trip. 6/9 13:14 entered Mode 2. 6/9 13:40 Reactor critical. 6/9 17:21 Entered Mode 1. 6/10 01:28 Breakers Closed. 6/30 Mode 1.16/1/2008S 61.32B1Replace main generator insulators.26/5/2008F 98.53A3Trip during performance of Stator Water low flow test.

RPT_PERIOD:200804UNIT_NME:San Onofre Unit 3 DOCKET:362 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:9493686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10802. Maximum Dependable Capacity (MWe-Net)1080372.502,555.50175,469.60372.482,555.48173,010.31 347.52347.52426.07403,042.102,831,850.56184,551,167.69This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

4/1/08 Unit 3 in Mode 1. 4/16 12:29 Tripped Turbine. 4/16 12:30 Tripped Reactor. 4/30 Unit in Mode 3.14/16/2008S 347.52H1Outage for Fuel Conservation.

RPT_PERIOD:200805UNIT_NME:San Onofre Unit 3 DOCKET:362 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:(949)3686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10802. Maximum Dependable Capacity (MWe-Net)1080454.233,009.73175,923.83440.572,996.05173,450.88 303.43650.95729.50380,724.753,212,575.31184,931,892.44This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

5/1/08 Unit 3 in Mode 3. 5/13 00:12 Entered Mode 2. 5/13 01:46 Reactor Critical. 5/13 09:40 Entered Mode 1. 5/13 15:26 Breakers Closed. 5/31 Unit in Mode 1.14/16/2008S 303.43H4Outage for Fuel Conservation.

RPT_PERIOD:200806UNIT_NME:San Onofre Unit 3 DOCKET:362 OPERATING DATA REPORTPREPARER NAME:Clay WilliamsPREPARER TELEPHONE:(949)3686707 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:10802. Maximum Dependable Capacity (MWe-Net)1080720.003,729.73176,643.83720.003,716.05174,170.88 0.00650.95729.50805,916.744,018,492.05185,737,809.18This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

6/1/08 Unit 3 in Mode 1. 6/30 Unit in Mode 1.

RPT_PERIOD:200804UNIT_NME:Seabrook Unit 1 DOCKET:443 OPERATING DATA REPORTPREPARER NAME:Kevin RandallPREPARER TELEPHONE:603.773.7992 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12462. Maximum Dependable Capacity (MWe-Net)12433.271,917.27138,119.050.021,897.94134,916.08 0.000.000.000.402,329,575.34154,576,874.24This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Scheduled Refueling Outage. Unit off-line on April 1 at 0001. Reactor sub-critical at 0315.08-024/1/2008S 719.98C1Scheduled refueling outage RPT_PERIOD:200805UNIT_NME:Seabrook Unit 1 DOCKET:443 OPERATING DATA REPORTPREPARER NAME:Kevin RandallPREPARER TELEPHONE:603.773.7992 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12462. Maximum Dependable Capacity (MWe-Net)1243582.132,499.40138,701.18562.672,460.61135,478.75 0.000.000.00667,512.012,997,087.35155,244,386.25This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% power for 486 hours0.00563 days 0.135 hours 8.035714e-4 weeks 1.84923e-4 months this month. The Unit returned to full power operation on May 11th following Refueling Outage 1208-024/1/2008S 181.33C4Scheduled refueling outage RPT_PERIOD:200806UNIT_NME:Seabrook Unit 1 DOCKET:443 OPERATING DATA REPORTPREPARER NAME:Kevin RandallPREPARER TELEPHONE:603.773.7992 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12462. Maximum Dependable Capacity (MWe-Net)1243720.003,219.40139,421.18720.003,180.61136,198.75 0.000.000.00855,930.233,853,017.58156,100,316.48This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at 100% power 664 out of the 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months this month. The unit reduced power to 30% to repair a condenser tube leak 6/5-6/7. This yielded an availability factor of 100.00% and a capacity factor of 95.6389% based on the MDC of 1243.0 Net MWe.

RPT_PERIOD:200804UNIT_NME:Sequoyah Unit 1 DOCKET:327 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)1148720.002,865.08167,303.01720.002,857.87165,113.25 0.000.000.00845,040.003,350,400.60182,196,936.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Gross Maximum Dependable Capacity Factor was 102.114 for the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Sequoyah Unit 1 DOCKET:327 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)1148744.003,609.08168,047.01744.003,601.87165,857.25 0.000.000.00862,205.004,212,605.60183,059,141.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Gross Maximum Dependable Capacity Factor was 101.714 for the month of May 2008.

RPT_PERIOD:200806UNIT_NME:Sequoyah Unit 1 DOCKET:327 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)1148720.004,329.08168,767.01720.004,321.87166,577.25 0.000.000.00832,788.005,045,393.60183,891,929.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 Gross Maximum Dependable Capacity Factor was 100.972 for the month of June 2008.

RPT_PERIOD:200804UNIT_NME:Sequoyah Unit 2 DOCKET:328 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)1126720.002,903.00172,694.55720.002,903.00170,250.42 0.000.000.00773,355.003,308,929.00184,485,806.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Gross Maximum Dependable Capacity Factor was 95.149 for the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Sequoyah Unit 2 DOCKET:328 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)112696.002,999.00172,790.5596.002,999.00170,346.42 0.000.000.0085,192.003,394,121.00184,570,998.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Gross Maximum Dependable Capacity Factor was 9.829 for the month of May 2008.015/5/2008S 648.00C1Manually tripped Reactor for Unit 2 Cycle 15 Refueling Outage RPT_PERIOD:200806UNIT_NME:Sequoyah Unit 2 DOCKET:328 OPERATING DATA REPORTPREPARER NAME:Sharon PowellPREPARER TELEPHONE:423/843-7855 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11512. Maximum Dependable Capacity (MWe-Net)1126648.523,647.52173,439.07616.423,615.42170,962.84 0.000.000.00671,463.004,065,584.00185,242,461.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 Gross Maximum Dependable Capacity Factor was 82.451 for the month of June 2008.015/5/2008S 103.58C4Manually tripped Reactor for Unit 2 Cycle 15 Refueling Outage RPT_PERIOD:200804UNIT_NME:South Texas Unit 1 DOCKET:498 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6130.582,264.63142,693.4794.072,227.10138,256.88 0.000.000.0097,717.002,913,573.00170,919,573.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Scheduled maintenance and refueling outage.13/29/2008S 625.93C4Unit removed from service for refueling and scheduled maintenance.

RPT_PERIOD:200805UNIT_NME:South Texas Unit 1 DOCKET:498 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6744.003,008.63143,437.47744.002,971.10139,000.88 0.000.000.001,000,590.003,914,163.00171,920,163.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:South Texas Unit 1 DOCKET:498 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6720.003,728.63144,157.47720.003,691.10139,720.88 0.000.000.00958,024.004,872,187.00172,878,187.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:South Texas Unit 2 DOCKET:499 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6720.002,903.00137,362.72720.002,903.00135,000.23 0.000.000.00970,556.003,942,265.00166,852,929.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:South Texas Unit 2 DOCKET:499 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6744.003,647.00138,106.72744.003,647.00135,744.23 0.000.000.00998,585.004,940,850.00167,851,514.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200806UNIT_NME:South Texas Unit 2 DOCKET:499 OPERATING DATA REPORTPREPARER NAME:R. L. HillPREPARER TELEPHONE:361 972-7667 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:1250.62. Maximum Dependable Capacity (MWe-Net)1250.6720.004,367.00138,826.72720.004,367.00136,464.23 0.000.000.00954,847.005,895,697.00168,806,361.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:St. Lucie Unit 1 DOCKET:335 OPERATING DATA REPORTPREPARER NAME:K. R. BollerPREPARER TELEPHONE:772 467-7465 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839720.002,903.00227,481.84720.002,903.00225,527.18 0.000.000.00617,437.002,478,786.00185,691,160.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 1 operated in Mode 1 for the entire reporting period.

RPT_PERIOD:200805UNIT_NME:St. Lucie Unit 1 DOCKET:335 OPERATING DATA REPORTPREPARER NAME:K. R. BollerPREPARER TELEPHONE:772 467-7465 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839744.003,647.00228,225.84744.003,647.00226,271.18 0.000.000.00636,954.003,115,740.00186,328,114.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 1 operated in Mode 1 for the entire reporting period.

RPT_PERIOD:200806UNIT_NME:St. Lucie Unit 1 DOCKET:335 OPERATING DATA REPORTPREPARER NAME:R. S. MargolisPREPARER TELEPHONE:772 467-7296 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839720.004,367.00228,945.84720.004,367.00226,991.18 0.000.000.00615,573.003,731,313.00186,943,687.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 1 operated in Mode 1 for the entire reporting period.

RPT_PERIOD:200804UNIT_NME:St. Lucie Unit 2 DOCKET:389 OPERATING DATA REPORTPREPARER NAME:K. R. BollerPREPARER TELEPHONE:772 467-7465 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839720.002,581.50188,117.71720.002,561.38186,016.13 0.000.000.00612,585.002,143,930.00153,474,190.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 2 operated in Mode 1 for the entire reporting period.

RPT_PERIOD:200805UNIT_NME:St. Lucie Unit 2 DOCKET:389 OPERATING DATA REPORTPREPARER NAME:K. R. BollerPREPARER TELEPHONE:772 467-7465 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839744.003,325.50188,861.71744.003,305.38186,760.13 0.000.000.00635,213.002,779,143.00154,109,403.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 2 operated in Mode 1 for the entire reporting period.

RPT_PERIOD:200806UNIT_NME:St. Lucie Unit 2 DOCKET:389 OPERATING DATA REPORTPREPARER NAME:R. S. MargolisPREPARER TELEPHONE:772 467-7296 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8562. Maximum Dependable Capacity (MWe-Net)839648.173,973.67189,509.88639.173,944.55187,399.30 0.000.000.00524,943.003,304,086.00154,634,346.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

St. Lucie Unit 2 operated in Mode 1 until 6/4/08 at 1750 hours0.0203 days 0.486 hours 0.00289 weeks 6.65875e-4 months when the unit was manually removed from service. St. Lucie Unit 2 returned to Mode 1 operation on 6/6/08 and remained in Mode 1 until 6/7/08 at 0818 hours0.00947 days 0.227 hours 0.00135 weeks 3.11249e-4 months when the unit was manually removed from service. St. Lucie Unit 2 returned to Mode 1 operation on 6/8/08 and 2015 hours0.0233 days 0.56 hours 0.00333 weeks 7.667075e-4 months and remained in Mode 1 for the remainder of the reporting period.046/7/2008F 39.08A2automatic trip of 2B condensate and 2B feedwater pumps. Operators manually tripped reactor.036/4/2008F 41.75G2Maintenace error lead to automatic trip of the 2B heater feed pump and 2A main feedwater pump.

Operations manually tripped reactor.

RPT_PERIOD:200804UNIT_NME:Summer Unit 1 DOCKET:395 OPERATING DATA REPORTPREPARER NAME:Gerald A. Loignon, Jr.PREPARER TELEPHONE:(803) 345-4508 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:972.72. Maximum Dependable Capacity (MWe-Net)966601.002,603.82182,275.98599.602,587.05180,086.77 0.000.000.00574,748.002,511,312.00161,227,242.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Power was reduced to 85% on April 23 for main steam safety valve testing and preparation toward the unit shut down for refueling (RF-17). The unit was taken off line on April 25 at 23:36 to begin RF-17. The plant remained shut down for the remainder of the month.24/25/2008S 120.40C1Power was reduced to 85% on April 23 for main steam safety valve testing and preparation toward the unit shut down for refueling (RF-17). The unit was taken off line on April 25 at 23:36 to begin RF-

17. The reactor returned to criticality on 06/13/08 01:15 and synchronized to the grid on 06/14/08 04:44. The turbine was taken off line from 06/14/08 08:44 to 06/14/08 10:30 to perform Turbine Overspeed trip test. Reactor power was limited to 75% to resolve issue with the "B" loop hot leg narrow range RTD reading high. Full reactor power was achieved on 06/17/08 19:33.

RPT_PERIOD:200805UNIT_NME:Summer Unit 1 DOCKET:395 OPERATING DATA REPORTPREPARER NAME:Gerald A. Loignon, Jr.PREPARER TELEPHONE:(803) 345-4508 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:972.72. Maximum Dependable Capacity (MWe-Net)9660.002,603.82182,275.980.002,587.05180,086.77 0.000.000.000.002,511,312.00161,227,242.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The plant remained shutdown for RF-17 during the entire month of May.24/25/2008S 744.00C4Power was reduced to 85% on April 23 for main steam safety valve testing and preparation toward the unit shut down for refueling (RF-17). The unit was taken off line on April 25 at 23:36 to begin RF-

17. The reactor returned to criticality on 06/13/08 01:15 and synchronized to the grid on 06/14/08 04:44. The turbine was taken off line from 06/14/08 08:44 to 06/14/08 10:30 to perform Turbine Overspeed trip test. Reactor power was limited to 75% to resolve issue with the "B" loop hot leg narrow range RTD reading high. Full reactor power was achieved on 06/17/08 19:33.

RPT_PERIOD:200806UNIT_NME:Summer Unit 1 DOCKET:395 OPERATING DATA REPORTPREPARER NAME:Gerald A. Loignon, JR.PREPARER TELEPHONE:(803) 345-4508 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:972.72. Maximum Dependable Capacity (MWe-Net)966430.753,034.57182,706.73401.502,988.55180,488.27 0.000.000.00358,159.002,869,471.00161,585,401.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The reactor returned to criticality on 06/13/08 01:15 and synchronized to the grid on 06/14/08 04:44. The turbine was taken off line from 06/14/08 08:44 to 06/14/08 10:30 to perform Turbine Overspeed trip test. Reactor power was limited to 75% to resolve issue with the "B" loop hot leg narrow range RTD reading high. Full reactor power was achieved on 06/17/08 19:33.36/14/2008S 1.77B5The turbine was taken off line from 06/14/08 08:44 to 06/14/08 10:30 to perform Turbine Overspeed trip test.24/25/2008S 316.73C4Power was reduced to 85% on April 23 for main steam safety valve testing and preparation toward the unit shut down for refueling (RF-17). The unit was taken off line on April 25 at 23:36 to begin RF-

17. The reactor returned to criticality on 06/13/08 01:15 and synchronized to the grid on 06/14/08 04:44. The turbine was taken off line from 06/14/08 08:44 to 06/14/08 10:30 to perform Turbine Overspeed trip test. Reactor power was limited to 75% to resolve issue with the "B" loop hot leg narrow range RTD reading high. Full reactor power was achieved on 06/17/08 19:33.

RPT_PERIOD:200804UNIT_NME:Surry Unit 1 DOCKET:280 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799617.052,800.05236,376.94599.632,782.63233,363.06 0.000.003,736.20477,734.082,247,387.26176,187,549.29This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

04/16/08 @ 2106 Unit 1 taken offline for 1-FW-E-6B (Feedwater Heater Tube Repair)04/20/08 @ 1827 Unit 1 online 04/20/08 @ 2216 Unit 1 manually tripped due to elevated vibrations on the #4 Turbine Bearing.

04/21/08 @ 2348 Unit 1 online1G-104/16/2008S 93.35B104/16/08 U1 taken offline for 1-FW-E-6B, Feedwater Heater Tube Repair1G-114/20/2008F 27.02B204/20/08 U1 manually tripped due to elevated vibrations on the #4 Turbine Bearing RPT_PERIOD:200805UNIT_NME:Surry Unit 1 DOCKET:280 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799744.003,544.05237,120.94744.003,526.63234,107.06 0.000.003,736.20598,485.962,845,873.22176,786,035.25This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

05/04/08 @ 0447 Commence ramping U1 to 72% power for repairs on Condenser Vacuum.05/04/08 @ 1527 Unit 1 at full power RPT_PERIOD:200806UNIT_NME:Surry Unit 1 DOCKET:280 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799720.004,264.05237,840.94720.004,246.63234,827.06 0.000.003,736.20577,445.683,423,318.90177,363,480.93This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Surry Unit 2 DOCKET:281 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799624.472,807.47234,963.84624.402,807.40232,372.39 0.000.000.00494,844.722,270,529.96176,211,227.07This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

04/16/08 @ 1100 Commenced Rx coastdown power reduction. 04/26/08 @ 0000 Unit 2 @ 92% Px Power, 790 MWe 04/26/08 @ 1904 Commenced Unit shutdown Rx power 92%, 790 MWe.

04/27/08 @ 0024 - Unit 2 taken offline for Refuling Outage2G-054/27/2008S 95.60C104/27/08 @ 0024 Unit 2 shutdown for Refueling Outage05/21/08 @ 0228 Unit 2 placed online RPT_PERIOD:200805UNIT_NME:Surry Unit 2 DOCKET:281 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799278.103,085.57235,241.94261.533,068.93232,633.92 0.000.000.00195,490.752,466,020.71176,406,717.82This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit offline for planned U2 Refueling Outage05/21/08 @ 0228 Unit 2 placed online 05/23/08 @ 0325 Unit 2 @ 100% Rx power.2G-054/27/2008S 482.47C404/27/08 @ 0024 Unit 2 shutdown for Refueling Outage05/21/08 @ 0228 Unit 2 placed online RPT_PERIOD:200806UNIT_NME:Surry Unit 2 DOCKET:281 OPERATING DATA REPORTPREPARER NAME:Marlene HaskettPREPARER TELEPHONE:757-365-2146 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7882. Maximum Dependable Capacity (MWe-Net)799720.003,805.57235,961.94720.003,788.93233,353.92 0.000.000.00579,086.853,045,107.56176,985,804.67This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Susquehanna Unit 1 DOCKET:387 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11772. Maximum Dependable Capacity (MWe-Net)1135366.031,884.36184,373.57335.831,849.98181,797.64 0.000.000.00314,055.002,060,112.00190,236,539.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Completed Refueling Outage #15 on 4/16/08, and commenced ramp up to perform Power Uprate testing for a power level of 3733 MWth. This is the First phase of the 2 phase Uprate. The Second phase will be implemented in 2010.24/17/2008S 0.55B5Planned Turbine Overspeed Trip test. Reactor was maintained at approximately 18% during testing.

RPT_PERIOD:200805UNIT_NME:Susquehanna Unit 1 DOCKET:387 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12352. Maximum Dependable Capacity (MWe-Net)1185744.002,628.36185,117.57744.002,593.98182,541.64 0.000.000.00880,232.002,940,344.00191,116,771.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

A New Maximum Thermal Power of 3733 MWth ( 94.4% of 3952 MWTH) was achived in May through the first phase of the Extended Power Uprate ( EPU) project. The only power change greater than 20 % power was for a planned condensate pump trip test on 5/16/05 to 65.5% as part of the EPU Testing. Reactor Power was returned to 3733 MWTH on 5/18/08.

RPT_PERIOD:200806UNIT_NME:Susquehanna Unit 1 DOCKET:387 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:12352. Maximum Dependable Capacity (MWe-Net)1185720.003,348.36185,837.57720.003,313.98183,261.64 0.000.000.00830,254.003,770,598.00191,947,025.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There was an unplanned power reduction on 6/9/08 due to Manual trip of a Recirc Pump because the normal speed controller was not operating properly. Reactor Power was reduced to approximately 25%. Following the repair of the controller, power was raised to 3733 MWth (normal power limit of 94.4 %) on 06/11/08.A planned power reduction of 24 % was also performed on 6/21/08 for SCRAM Timing and a Sequence Exchange.Reactor Power was again raised to 94.4% on 06/22/08.

RPT_PERIOD:200804UNIT_NME:Susquehanna Unit 2 DOCKET:388 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11822. Maximum Dependable Capacity (MWe-Net)1140720.002,903.00179,620.25720.002,903.00177,379.28 0.000.000.00829,708.003,382,903.00189,165,078.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The only power reduction greater than 20 % was for a planned Sequence Exchange on 4/26/08. Power was reduced to 77%, and returned to 100% on 4/27/08.

RPT_PERIOD:200805UNIT_NME:Susquehanna Unit 2 DOCKET:388 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11822. Maximum Dependable Capacity (MWe-Net)1140744.003,647.00180,364.25744.003,647.00178,123.28 0.000.000.00858,848.004,241,751.00190,023,926.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

There were no power reductions greater than 20% this month.

RPT_PERIOD:200806UNIT_NME:Susquehanna Unit 2 DOCKET:388 OPERATING DATA REPORTPREPARER NAME:J. HenningsPREPARER TELEPHONE:570-542-3747 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11822. Maximum Dependable Capacity (MWe-Net)1140720.004,367.00181,084.25720.004,367.00178,843.28 0.000.000.00808,857.005,050,608.00190,832,783.30This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The only power reduction greater than 20% this month was on 06/28/08 down to 70% for a planned control rod sequence exchange.Reactor power was increased to 100% on 06/30/08 RPT_PERIOD:200804UNIT_NME:Three Mile Island Unit 1 DOCKET:289 OPERATING DATA REPORTPREPARER NAME:Mark FauberPREPARER TELEPHONE:(717) 948-8787 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8192. Maximum Dependable Capacity (MWe-Net)802720.002,903.00211,464.41720.002,903.00209,779.82 0.000.000.00606,166.002,466,520.00173,881,818.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at nominal full power for the entire month.

RPT_PERIOD:200805UNIT_NME:Three Mile Island Unit 1 DOCKET:289 OPERATING DATA REPORTPREPARER NAME:Mark FauberPREPARER TELEPHONE:(717) 948-8787 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8192. Maximum Dependable Capacity (MWe-Net)802744.003,647.00212,208.41744.003,647.00210,523.82 0.000.000.00622,685.003,089,205.00174,504,503.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at nominal full power for the entire month with the exception of the period from 21:59 on 5/30/08 to 04:17 on 5/31/08, when power was reduced to approximately 87% for main turbine control valve testing.

RPT_PERIOD:200806UNIT_NME:Three Mile Island Unit 1 DOCKET:289 OPERATING DATA REPORTPREPARER NAME:Mark FauberPREPARER TELEPHONE:(717) 948-8787 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:8192. Maximum Dependable Capacity (MWe-Net)802720.004,367.00212,928.41720.004,367.00211,243.82 0.000.000.00593,699.003,682,904.00175,098,202.40This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at nominal full power for the entire month. Losses have been classified as planned based on the Exelon Nuclear Production model.

RPT_PERIOD:200804UNIT_NME:Turkey Point Unit 3 DOCKET:250 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)693720.002,766.99236,275.42720.002,756.80233,441.91 0.000.00121.80519,425.001,986,982.00153,627,916.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 3 operated at approximately 100% for the entire month.

RPT_PERIOD:200805UNIT_NME:Turkey Point Unit 3 DOCKET:250 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)693744.003,510.99237,019.42744.003,500.80234,185.91 0.000.00121.80527,788.002,514,770.00154,155,704.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 3 operated at approximately 100% power for the month.

RPT_PERIOD:200806UNIT_NME:Turkey Point Unit 3 DOCKET:250 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)693720.004,230.99237,739.42720.004,220.80234,905.91 0.000.00121.80476,244.002,991,014.00154,631,948.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 3 operated at approximately 100% power until it entered a planned Short Notice Outage on 6/27/08 to perform a balance shot on the #9 turbine bearing after elevated vibrations started increasing after a grid instability event. Unit 3 was returned to approximately 100% power on 6/30/08.

RPT_PERIOD:200804UNIT_NME:Turkey Point Unit 4 DOCKET:251 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)6930.002,098.60232,932.850.002,065.32228,165.62 0.000.00577.200.001,472,234.00151,775,914.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 4 was in Cycle 24 Refueling Outage for the entire month.20080 0093/31/2008S 720.00C4Unit 4 cycle 24 RFO (end of cycle 23). The RFO includes containment sump modifications, ERDADS replacement, and split pin replacement work.

RPT_PERIOD:200805UNIT_NME:Turkey Point Unit 4 DOCKET:251 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)693535.552,634.15233,468.40490.002,555.32228,655.62 0.000.00577.20303,076.001,775,310.00152,078,990.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 4 ended Cycle 24 RFO on 5/11/08 and reached 100% power 5/17/08.20080 0093/31/2008S 254.00C4Unit 4 cycle 24 RFO (end of cycle 23). The RFO includes containment sump modifications, ERDADS replacement, and split pin replacement work.

RPT_PERIOD:200806UNIT_NME:Turkey Point Unit 4 DOCKET:251 OPERATING DATA REPORTPREPARER NAME:R.L. EverettPREPARER TELEPHONE:305-246-6190 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:7202. Maximum Dependable Capacity (MWe-Net)693720.003,354.15234,188.40720.003,275.32229,375.62 0.000.00577.20509,877.002,285,187.00152,588,867.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 4 operated at approximately 100% power for the month.

RPT_PERIOD:200804UNIT_NME:Vermont Yankee Unit 1 DOCKET:271 OPERATING DATA REPORTPREPARER NAME:Greg WallinPREPARER TELEPHONE:802-451-3309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6172. Maximum Dependable Capacity (MWe-Net)605720.002,903.00267,533.42720.002,903.00263,722.42 0.000.000.00421,705.001,781,169.00130,182,432.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Date Activity Losses in MWe hours Type of Loss (S) or (F)4/01-4/04/08 Power reduction for a condenser 27255.0 F tube leak 4/04/08 Power reduction for a rod pattern 31.0 S exchange 4/05/08 Power recuction for a rod pattern 73.0 S exchange 4/13/08 Recirc gate adjustment for trash 18.0 S rack backwash4/22/08 Recirc gate adjustment for trash 2.0 S rack backwashTotal Losses for the month were: 124.0 S 27255.0 F 27379.0 RPT_PERIOD:200805UNIT_NME:Vermont Yankee Unit 1 DOCKET:271 OPERATING DATA REPORTPREPARER NAME:Greg WallinPREPARER TELEPHONE:802-451-3309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6172. Maximum Dependable Capacity (MWe-Net)605744.003,647.00268,277.42744.003,647.00264,466.42 0.000.000.00454,881.002,236,050.00130,637,313.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Date Activity Losses in MWHe Type of lo ss05/26-05/31/08 Power reduction for Project 7943.0 scheduled SAVE (low river flow considerations) as directed by ISO-NE RPT_PERIOD:200806UNIT_NME:Vermont Yankee Unit 1 DOCKET:271 OPERATING DATA REPORTPREPARER NAME:Greg WallinPREPARER TELEPHONE:802-451-3309 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:6172. Maximum Dependable Capacity (MWe-Net)605720.004,367.00268,997.42720.004,367.00265,186.42 0.000.000.00426,842.002,662,892.00131,064,155.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Date Activity Losses in MW hours Type of Losses (S) or (F) 06/07/08 Power reduction to maintain condenser backpressure <5 inches due to closed cycle operations for chlorination 270.0 MWe S 06/11/08 Power reduction for a rod pattern exchange, turbine quarterly and stop valve testing, plus MSIV testing 5485.0 MWe S06/12-06/30/08 Power production losses due to condenser cleanliness 2135.0 MWe S 06/13/08 Power reduction for a rod pattern adjustment 80.0 MWe S 06/14/08 Power reduction for a rod pattern adjustment 306.0 MWe S 06/19/08 Power reduction for chlorination 174.0 MWe S 06/22/08 Power reduction for chlorination 105.0 MWe S 06/25/08 A CWBP valve binding. Power reduction to maintain Cond B/P <5 inches 777.0 MWe F 06/27/08 Power reduction for a rod pattern adjustment 17.0 MWe S 06/29/08 Power reduction for chlorination 124.0 MWe S Total Losses for the month were: 8696.0 MWe S 777.0 MWe F 9473.0 MWe RPT_PERIOD:200804UNIT_NME:Vogtle Unit 1 DOCKET:424 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1109191.851,992.85165,407.21146.351,947.35163,627.36 0.000.000.00123,134.202,161,531.20184,671,571.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On April 01 at 00:00, Unit 1 remained shutdown for 1R14. There was an unplanned outage schedule extension from April 24 at 01:39 to April 24 at 21:39. Unit 1 began ramping up following 1R14 on April 24 at 21:39. The turbine was tripped for the planned turbine overspeed test on April 24 at 22:58. Unit 1 ramp up began on April 25 at 00:34 and completed on April 30 at 01:47. On April 30 at 07:20 began unplanned derate for 5A Feedwater Heater Normal Level Control Valve (NLCV) issue. Unit 1 rampup following 5A Feedwater Heater NLCV work was on April 30 from 08:05 to 13:05. The unit was at maximum operating power on April 30 at 23:59.2008-013/16/2008S 573.65C41R14 begins as scheduled.

RPT_PERIOD:200805UNIT_NME:Vogtle Unit 1 DOCKET:424 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1109744.002,736.85166,151.21744.002,691.35164,371.36 0.000.000.00874,910.003,036,441.20185,546,481.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 1 was at maximum operating power with no significant operating problems during the month of May 2008.

RPT_PERIOD:200806UNIT_NME:Vogtle Unit 1 DOCKET:424 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1109720.003,456.85166,871.21720.003,411.35165,091.36 0.000.000.00837,554.003,873,995.20186,384,035.20This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

On June 01 at 00:00, Unit 1 was at maximum operating power with no significant operating problems. On June 11 at 14:11, Unit 1 began a derate for a communication problem with the ultrasonic flow measuring device. On June 11 at 14:58, Unit 1 began to ramp up after the communication problem and completed the ramp up at 20:23. On June 30th at 23:59, Unit 1 was at maximum operating power.

RPT_PERIOD:200804UNIT_NME:Vogtle Unit 2 DOCKET:425 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1127720.002,903.00150,843.62720.002,903.00149,664.21 0.000.000.00827,373.603,361,778.60169,694,746.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 was at maximum operating power with no significant operating problems during the month of April 2008.

RPT_PERIOD:200805UNIT_NME:Vogtle Unit 2 DOCKET:425 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1127744.003,647.00151,587.62744.003,647.00150,408.21 0.000.000.00850,839.004,212,617.60170,545,585.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 was at maximum operating power with no significant operating problems during the month of May 2008.

RPT_PERIOD:200806UNIT_NME:Vogtle Unit 2 DOCKET:425 OPERATING DATA REPORTPREPARER NAME:Amy WhaleyPREPARER TELEPHONE:706-826-3858 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11692. Maximum Dependable Capacity (MWe-Net)1127720.004,367.00152,307.62720.004,367.00151,128.21 0.000.000.00814,472.005,027,089.60171,360,057.60This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Unit 2 was at maximum operating power during the month of June.

RPT_PERIOD:200804UNIT_NME:Waterford Unit 3 DOCKET:382 OPERATING DATA REPORTPREPARER NAME:Greg ScottPREPARER TELEPHONE:(504)739-6703 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)1152623.972,806.97173,276.33623.972,806.97171,806.30 0.000.000.00736,948.003,330,266.00186,162,001.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated at an average reactor power level of 86.5%. A planned shutdown was performed on April 26, 2008 using normal operating procedures to conduct Refueling Outage 15. The unit remained off-line for the remainder of April. PO-08-014/26/2008S 96.03C1The unit was taken off-line using normal operating procedures to conduct planned Refueling Outage 15. The unit was restored to service and synchronized to the grid using normal operating procedures.

RPT_PERIOD:200805UNIT_NME:Waterford Unit 3 DOCKET:382 OPERATING DATA REPORTPREPARER NAME:Greg ScottPREPARER TELEPHONE:(504)739-6703 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)11525.832,812.80173,282.160.002,806.97171,806.30 0.000.000.000.003,330,266.00186,162,001.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit remained off-line the month of May 2008 to conduct Refueling Outage 15. PO-08-014/26/2008S 744.00C4The unit was taken off-line using normal operating procedures to conduct planned Refueling Outage 15. The unit was restored to service and synchronized to the grid using normal operating procedures.

RPT_PERIOD:200806UNIT_NME:Waterford Unit 3 DOCKET:382 OPERATING DATA REPORTPREPARER NAME:Greg ScottPREPARER TELEPHONE:(504)739-6703 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11732. Maximum Dependable Capacity (MWe-Net)1152720.003,532.80174,002.16704.983,511.95172,511.28 0.000.000.00784,600.004,114,866.00186,946,601.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit began the month off-line to continue Refueling Outage 15 and was synchronized to the grid on June 1, 2008. An unplanned outage was performed on June 2, 2008 to repair a steam leak on a Main Turbine test connection, and the unit was synchronized to the grid on June 3, 2008. The plant operated at an average reactor power level of 93.6%. PO-08-014/26/2008S 10.58C4The unit was taken off-line using normal operating procedures to conduct planned Refueling Outage 15. The unit was restored to service and synchronized to the grid using normal operating procedures. FO-08-016/2/2008F 4.43A5During power ascension following Refuel Outage 15, the unit was shutdown to repair a steam leak from a test connection on the Main Turbine. The leak was repaired within five hours and the power ascension was resumed.

RPT_PERIOD:200804UNIT_NME:Watts Bar Unit 1 DOCKET:390 OPERATING DATA REPORTPREPARER NAME:M. G. LongPREPARER TELEPHONE:423-365-1434 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1121720.001,884.1894,142.05720.001,867.1593,701.01 0.000.000.00837,789.002,093,138.53104,558,900.13This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200805UNIT_NME:Watts Bar Unit 1 DOCKET:390 OPERATING DATA REPORTPREPARER NAME:M. G. LongPREPARER TELEPHONE:423-365-1434 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1121564.272,448.4594,706.32546.052,413.2094,247.06 0.000.000.00581,768.002,674,906.53105,140,668.13This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Forced Outage 05/17/08 thru 05/25/08 to repair stator cooling water system leak.Forced Outag e5/17/2008F 197.95A1Forced Outage to repair stator cooling water system leak RPT_PERIOD:200806UNIT_NME:Watts Bar Unit 1 DOCKET:390 OPERATING DATA REPORTPREPARER NAME:M. G. LongPREPARER TELEPHONE:423-365-1434 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11552. Maximum Dependable Capacity (MWe-Net)1121720.003,168.4595,426.32720.003,133.2094,967.06 0.000.000.00790,206.003,465,112.53105,930,874.13This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

RPT_PERIOD:200804UNIT_NME:Wolf Creek Unit 1 DOCKET:482 OPERATING DATA REPORTPREPARER NAME:D. M. HooperPREPARER TELEPHONE:620 364-4041 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11702. Maximum Dependable Capacity (MWe-Net)11600.001,733.82172,498.210.001,710.41171,129.38 0.000.00339.800.002,010,407.00195,664,654.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Refuel 16 began on March 20th, 2008 at 0800 and continued through the month of April 2008. Outage extension began on April 23 2008 and is still ongoing.08-023/17/2008F 720.00A4The unit was manually taken off-line due to indications of problems with the feedwater system - electrical transformer PB03. Transition to the outage began on March 20, 2008 at 0800.

RPT_PERIOD:200805UNIT_NME:Wolf Creek Unit 1 DOCKET:482 OPERATING DATA REPORTPREPARER NAME:D. M. HooperPREPARER TELEPHONE:620 364-4041 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11702. Maximum Dependable Capacity (MWe-Net)1160429.952,163.77172,928.16418.282,128.69171,547.66 0.000.00339.80437,666.002,448,073.00196,102,320.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

Refuel 16 began on March 20th, 2008 at 0800 and continued through the month of April 2008. Outage extension began on April 23, 2008 and ended May 14th, 2008 at 1343 with the unit operating at or near 100% power through the end of May, 2008.08-023/17/2008F 325.72A4The unit was manually taken off-line due to indications of problems with the feedwater system - electrical transformer PB03. Transition to the outage began on March 20, 2008 at 0800.

RPT_PERIOD:200806UNIT_NME:Wolf Creek Unit 1 DOCKET:482 OPERATING DATA REPORTPREPARER NAME:D. M. HooperPREPARER TELEPHONE:620 364-4041 UNIT SHUTDOWNSNo.DateType F: ForcedS: ScheduledDuration (Hours)Reason 1 Method of Shutting Down 2Cause - Corrective ActionComments1. Design Electrical Rating:11702. Maximum Dependable Capacity (MWe-Net)1160720.002,883.77173,648.16720.002,848.69172,267.66 0.000.00339.80846,724.003,294,797.00196,949,044.00This MonthYr-to-DateCumulative3. Number of Hours the Reactor was Critical4. Number of Hours Generator On-line

5. Reserve Shutdown Hours6. Net Electrical energy Generated (MWHrs)

SUMMARY

The unit operated in Mode 1, at or near 100% power, from June 1, 2008, through June 30, 2008.

ML082190013

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