ML20199G364

Monthly Operating Repts for Dec 1998 for Sequoyah Nuclear Plant,Units 1 & 2.With

ML20199G364
Person / Time
Site:	Sequoyah
Issue date:	12/31/1998
From:	Hollomon T, Salas P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9901220274
Download: ML20199G364 (10)

Text

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Tennessee vatiey Authonty. Post Offce Box 2000. SoddcDaisy Tennessee 37379 January 14, 1999 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 SEQUOYAH NUCLEAR PLANT (SQN) - DECEMBER MONTHLY OPERATING REPORT The enclosure provides the December Monthly Operating Report as required by SON Technical Specifications Section 6.9.1.10.

If you have any questions concerning this matter, please call me at (423) 843-7170 or J. D. Smith at (423) 843-6672.

Sincerely, &

Pe to Salas Licensing and Industry Affairs Manager Enclosure cc: See page 2 ge\ '

220013 9901220274 981231 ~

gDR ADOCK 05000327 PDR

l U.S. Nuclear Regulatory Commission i Page 2 January 14, 1999 JDS:JWP:PMB cc (Enclosure):

Mr. R. W. Hernan, Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 INPO Records Center Institute of Nuclear Power Operations 700 Galleria Parkway Atlanta, Georgia 30339-5947 Ms. Barbara Lewis, Assistant Editor, Database McGraw-Hill, Inc.

1200 G Street, NW, Suite 1100

' Washington, D.C. 20005 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 q Regional Administrator U.S. Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth Street, SW, suite 23T85  ;

Atlanta, Georgia.30303-3415 l l

,. 's ENCLOSURE l

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TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN) l l

l MONTHLY OPERATING REPORT 1

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DECEMBER 1998 I

l UNIT 1 DOCKET NUMBER 50-327 l

l LICENSE NUMBER DPR-77 1

UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 l

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.. 's 1 . .

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t OPERATIONAL SUMIGRY DECEMBER 1998 l

I. SEQUOYAH OPERATIONAL

SUMMARY

UNIT 1 Unit 1 generated 883,974 megawatthours (MWh) (gross) electrical power during December with a capacity factor of 102.3 percent. Unit 1 operated at 100 percent power i throughout the month of December. '

UNIT 2 l

l Unit 2 generated 879,909 MWh (gross) electrical power during December with a capacity factor of 102.3 percent. l Unit 2 operated at 100 percent power throughout the month '

of December.

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II. CHALLENGES TO THE PRESSURIZER POWER-OPERATED RELIEF VALVES (PORVs) OR PRESSURIZER SAFETY VALVES No PORVs or safety valves were challenged in December.

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.. 's AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT NO. ONE DATE: January 8, 1999 COMPLETED BY: Tanya J. Hollomon TELEPHONE: (423) 843-7528 MONTH: DECEMBER 1998 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net)

1. 1154 17. 1153

2. 1152 18. 1153

3. 1151 19. 1153

4. 1151 20. 1156

5. 1153 21. 1152

6. 1150 22. 1152

7. 1150 23. 1153

8. 1150 24. 1155

9. 1151 25. 1153

10. 1153 26. 1156

11. 1151 27. 1154 12 1152 28. 1154

13. 1152 29. 1154

14. 1153 30. 1153

15. 1153 31. 1155

16. 1152 E-2 l . .. . .

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AVERAGE DAILY UNIT POWER LEVEL 2 l

l DOCKET NO. 50-328 UNIT NO. TWO DATE: January 8, 1999 )

COMPLETED BY: Tanya J. Ho11omon TELEPHONE: (423) 843-7528 i l

MONTH: DECEMBER 1998 j l

AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL l DAY (MWe-Net) DAY (MWe-Net) l

1. 1153 17. 1152 1

2. 1151 18. 1150 l

3. 1151 19. 1152 i l

4. 1149 20. 1152 l S. 1153 21. 1152

6. 1151 22. 1149

7. 1146 23. 1152

8. 1150 24. 1152 i I

9. 1151 25. 1147

10. 1146 26. 1145

11. 1153 27. 1146 l 12 1153 28. 1146

13. 1151 29. 1146

14. 1142 30. 1143

15. 1149 31. 1145

16. 1149 l

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l l OPERATING DATA REPORT l

Docket No. 50-327 Date: January 8,1999 Completed By: T. J. IIollomon Telephone: (423) 843-7528

1. Unit Name: SQN Unit 1

2. Reporting Period: December 1998

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross Mwe): 1220.6 5, Design Electrical Rating (Net Mwe): 1148.0

6. Maximum Dependable Capacity (Gross MWe): 1161 l

l 7. Maximum Dependable Capacity (Net MWe): 1122 l i

8. If changes Occur in Capacity Rating (Item Numbers 3 & 7) Since Last Report, Give Reasons: N/A {

l 9. Power Level To Which Restricted, if any (net MWe): N/A I I 10.. Reasons for Restrictions,if any: N/A l This Month Yr-to-Date Cumulative i l 1. Ilours in Reporting Period 744 8,760 153,433 l

12. Number of flours Reactor was Critical 744.0 8,021.4 92,877

13. Reactor Reserve Shutdown Ilours 0.0 0.0 0.0

14. Hours Generator On-Line 744.0 7,967.7 91,027.3

15. Unit Resen'e Shutdown IIours 0.0 0.0 0.0 i l 16. Gross Thermal Energy Generated (MWh) 2,536,077.6 26,677,425.1 297,921,420 l

17. Gross Electric Energy Generated (MWh) 883,974 9,214,498 101,615,625 l 18. Net Electrical Energy Generated (MWh) 856,646 8,905,682 97,605,579

19. Unit Sen' ice Factor 100.0 91.0 59.3

20. Unit Availability Factor 100.0 91.0 59.3 l 21. Unit Capacity Factor (Using MDC Net) 102.6 90.6 56.7

22. Unit Capacity Factor (Using DER Net) 100.3 88.6 55.4 1

23. Unit Forced Outage Rate 0.0 1.1 28.2 )

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): This information is no loncer reauired by NRC.

25. If Shutdown at End of Report Period, Estimate Date of Startup. N/A l

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OPERATING DATA REPORT ,

i Docket No. 50-328 l Date: January 8,1999 j Completed By: T. J. Hollomon  ;

Telephone: (423) 843-7528 l

1. Unit Name: SQN Unit 2

2. Reporting Period: December 1998 I

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross Mwe): 1220.6

5. Design Electrical Rating (Net Mwe): 1148.0

6. Maximum Dependable Capacity (Gross MWe): 1156  !

7. ' Maximum Dependable Capacity (Net MWe): 1117 *

8. , if changes Occur in Capacity Rating (Item Numbers 3 & 7) Since Last Report, Give Reasons: N/A

9. : Power Level To Which Restricted, If any (net MWe): N/A

10. Reasons for Restrictions,If any: N/A l This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744 8,760 145,393

12. Number of Hours Reactor was Critical 744.0 8,674.4 96,330 l 13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0 l 14. Hours Generator On-Line 744.0 8,657.3 94,331.8

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0 l 16. Gross Thermal Energy Generated (MWh) 2,535,727.2 29,430,137.1 303,407,474 l 17. Gross Electric Energy Generated (MWh) 879.909 10,106,721 103,332,085 l 18. Net Electrical Energy Generated (MWh) 854,149 9,799.593 99,204,955

19. Unit Service Factor 100.0 98.8 64.9

20. Unit Availability Factor 100.0 98.8 64.9 i 21. Unit Capacity Factor (Using MDC Net) 102.8 100.1 61.1

22. Unit Capacity Factor (Using DER Net) 100.0 97.4 59.4

23. Unit Forced Outage Rate 0.0 1.2 27.3 l 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): This information is no i longer reauired by NRC.

25. If Shutdown at End of Report Period, Estimate Date of Startup. N/A i

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UNIT SHUTDOWNS AND POWER REDUCTIONS  ;

REPORT MONTH: DECEMBER 1998 DOCKET NO: 50-327 UNIT NAME: SQN-1 ,

DATE: January 8,1999 COMPLETED BY: T. J. Hollomon TELEPHONE: (423) 843-7528 No. Date Type' Duration Reason

• Method of Licensee System Component Cause and Corrective Action to Prevent d 5 (Hours) Shutting Event Report Code Code Recurrence Down No.

Reactor3 There were no outages or power reductions of greater than 20 percent in the average daily power level during December.

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' F: Forced Reason: Method ' Exhibit G - Instructions for (NUREG S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data Entry sheets B-Maintenance or Test 2-Manual Scram for Licensee Event Report (LER)

C-Refueling 3-Automatic Scram File - NUREG - 1022 D-Regulatory Restriction 4-Continuation of Existing E-Operator Training and License Outage 8

Examination S-Reduction Exhibit I-Same Source F-Administrative 9-Other G-Operational Error (Explain) 11- Other (Exp?ain)

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UNIT SilUTDOWNS AND POWER REDUCTIONS  ;

REPORT MONTil: DECEMBER 1998 DOCKET NO: 50-328 UNIT NAME: SQN-2 .

DATE: January 8,1999 COMPLETED BY: T. J. IIollomon TELEPIIONE: (423) 843-7528 No. Date Type' Duration Reason

• Method of Licensee Event System Component Cause and Corrective Action to 5

(Hours) Shutting Report No. Code' Code Prevent Recurrence Down-Reactor' There were no outages or power reductions of greater than 20 percent in the average daily power level during December.

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' F: Forced Reason: ' Method

• Exhibit G - Instructions for (NUREG S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data Entry sheets B-Maintenance or Test 2-Manual Scram for Licensee Event Report (LER)

C-Refueling 3-Automatic Scram File - NUREG - 1022 D-Regulatory Restriction 4-Continuation of Existing E-Operator Training and License Outage 8 '

Examination 5-Reduction Exhibit I-Same Source F-Administrative 9-Other G-Operational Error (Explain) 11- Other (Explain)

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