ML20206R503

Monthly Operating Repts for April 1999 for Sequoyah Units 1 & 2.With

ML20206R503
Person / Time
Site:	Sequoyah
Issue date:	04/30/1999
From:	Hollomon T, Salas P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9905200139
Download: ML20206R503 (10)

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'YA Tennessee Valley Authority. Post Office Box 2000. Soddy Darsy. Tennessee 37379 May 11, 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) - APRIL MONTHLY OPERATING REPORT h

The enclosure provides the April 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.

Sincere:y, N

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. . 'AV) e o as Enclosure 1 cc: See page 2 i

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U.S. Nuclear Regulatory Commission Page 2 May 11, 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 37384-3624 l

Regional Administrator U.S. Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georcia 30303-3415

. i I

ENCLOSURE 4

TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN)

MONTHLY OPERATING REPORT APRIL 1999 UNIT 1 l

DOCKET NUMBER 50-327 LICENSE NUMBER DPR-77 UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 1

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OPERATIONAL

SUMMARY

APRIL 1999 I. SEQUOYAH OPERATIONAL

SUMMARY

UNIT 1 Unit 1 generated 851,981 megawatthours (MWh) (gross) electrical power during April with a capacity factor of 102.1 percent. Unit 1 operated at 100 percent power throughout the month of April.

UNIT 2 Unit 2 generated 324,342 MWh (gross) electrical power during April with a capacity factor of 39.0 percent.

Unit 2 was in coastdown to the Unit 2 Cycle 9 refueling outage at the beginning of the month. The refueling outage began on April 18, 1999, at 0100 Eastern daylight time when Unit 2 was removed from the grid. Unit 2 remained in Mode 6 at the end of April.

II. CHALLENGES TO THE PRESSURIZER POWER-OPERATED RELIEF VALVES (PORVs) OR PRESSURIZER SAFETY VALVES ,

No PORVs or safety valves were challenged in April.

E-1

I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT NO. ONE DATE: May 10, 1999 COMPLETED BY: Tanya J. Hollomon TELEPHONE: (423) 843-7528 MONTH: APRIL 1999 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net)

1. -1150 17. 1146

2. 1150 18. 1148

3. 1152 19. 1146

4. 1150 20. 1147

5. 1155 21. 1147

6. 1152 22. 1148

7. 1154 23. 1150

8. 1153 24. 1149

9. 1151 25. 1149 l

10. 1152 , 26. 1151 '

11. 1150 27. 1151 12 1149 28. 1146

13. 1147 29. 1147 j

14. 1146 30. 1146

15. 1145 31. NA

16. 1145 E-2

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-328 UNIT NO. TWO DATE: May 10, 1999 COMPLETED BY: Tanya J. Hollomon TELEPHONE: (423) 843-7528 MONTH: APRIL 1999 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net)

1. 824 17. 696

2. 816 18. 0

3. 810 19. 0

4. 806 20. 0

5. 791 21. 0

6. 794 22. 0

7. 764 23. 0

8. 768 24. 0

9. 763 25. 0

10. 759 26. O f

11. 746 27. 0 12 740 28. 0 13, 731 29. 0

14. 720 30. 0

15. 718 31. NA i

16. 716 E-3

OPERATING DATA REPORT Docket No. 50-327 Date: May 10,1999 Completed By: T. J. Hollomon Telephone: (423) 843-7528 Unit Name:

1. SQN Unit 1 )

2. Reporting Period: April 1999

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross Mwe):

)

1220.6 I

5. Design Electrical Rating (Net Mwe): 1148.0 6.' Maximum Dependable Capacity (Gross MWe): 1161 1

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

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

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

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

11. Hours in Reporting Period 719 2,879 156,312

12. Number of Hours Reactor was Critical 719.0 2,879.0 95,756

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On-Line 719.0 2,879.0 93,906.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWh) 2,451,989.8 9,814,906.6 307.736,326

17. Gross Electric Energy Generated (MWh) 851,981 3,420,108 105,035,733

18. Net Electrical Energy Generated (MWh) 824,867 3,314,818 100,920,397

19. Unit Service Factor 100.0 100.0 60.1

20. Unit Availability Factor 100.0 100.0 60.I

21. Unit Capacity Factor (Using MDC Net) 102.2 102.6 57.5

22. Unit Capacity Factor (Using DER Net) 99.9 100.3 56.2

23. Unit Forced Outage Rate 0.0 0.0 27.6 I l

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

25. If Shutdown at End of Report Period, Estimate Date of Startup. N/A E-4

OPERATING DATA REPORT Docket No. 50-328 Date: May 10,1999 i Completed By: T. J. IIollomon Telephone: (423) 843-7528

1. Unit Name: SQN Unit 2

2. Reporting Period: April 1999

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross Mwe): 1220.6

5. Design Electrical Rating (Net Mwe): _l,148.0

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 This Month Yr-to-Date Cumulative

11. Ilours in Reporting Period 719 2,879 148,272

12. Number of Hours Reactor was Critical 408.0 2,568 98,898

13. Reactor Reserve Shutdown llours 0.0 0.0 0.0

14. Hours Generator On-Line 408.0 2.568.0 96,899.8

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWh) 925,462.8 7,787,211.6 311,194,686 ,

17. Gross Electric Energy Generated (MWh) 324,342 2,722,204 106,054,289

18. Net Electrical Energy Generated (MWh) 308,392 2.630,990 101,835,945

19. Unit Service Factor 56.7 89.2 65.4

20. Unit Availability Factor 56.7 89.2 65.4

21. Unit Capacity Factor (Using MDC Net) 38.4 81.8 61.5

22. Unit Capacity Factor (Using DER Net) 37.4 79.6 59.8

23. Unit Forced Outage Rate 0.0 0.0 26.8

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 E-5

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