ML20247L514

Monthly Operating Repts for Apr 1998 for Sequoyah Nuclear Plant

ML20247L514
Person / Time
Site:	Sequoyah
Issue date:	04/30/1998
From:	Hollomon T, Salas P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9805220424
Download: ML20247L514 (10)

Text

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Tennessee Valley Authority, Post Office Box 2000, Soddy-Daisy, Tennessee 37379-2000 May 15, 1998 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 1998 MONTHLY OPERATING REPORT The enclosure provides the April 1998 Monthly Operating Report as required by SON Technical Specifications Section 6.9.1.10.

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

amh f [Sif' Pe o Salas Licensing and Industry Affairs Manager Enclosure cc: See page 2

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9805220424 990430 C "'

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U.S. Nuclear Regulatory Commissjon e Page 2 May 15, 1998 JDS:JWP:PMB cc (Enclosure):

Mr. R. W. Hernh.2, Project Manager U.S. Nuclear Regulatory Com:aission 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 Mr. James Lang, Manager j Advanced Reactor Department i Electric Power Research Institute 3340 Hillview Avenue Palo Alto, California 94304 NRC Resident Inspector  !

Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 Regional Administrator U.S. Nuclear Regulatory Commission i Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta,' Georgia 30303-3415 i

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ENCLOSURE TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN)

MONTHLY OPERATING REPORT APRIL 1998 1

UNIT 1 DCCKET NUMBER 50-327 LICENSE NUMBER DPR-77 i

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

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OPERATIONAL SUleRRY i

APRIL 1998 I. SEQUOYAH OPERATIONAL

SUMMARY

l UNIT 1 Unit 1 generated 853,486 megawatthours (MWh) (gross) electrical power during April with a capacity factor of 102.2 percent. There were no outages or power reductions of greater than 20 percent in thd average daily power level during April. Unit 1 was operating at near 100 percent power at the end of April.

UNIT 2 Unit 2 generated 849,812 MWh (gross) electrical power during April with a capacity factor of 102.2 percent.

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

Unit 2 was operating at 100 percent power at the end of April.

II. CHALLENGES TO THE PRESSURIZER POWER-OPERATED RELIEF VALVES OR PRESSURIZER SAFEif VALVES No PORVs or safety valves were challenged in April.

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i AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT NO. ONE DATE: 05/08/98 COMPLETED BY: Tanya J. Hollomon TELEPHONE (423)843-7528 MONTH April 1998 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net)

1. 1149 17. 1150

2. 1153 ,_

18. 1149

3. 1150 19. 1149 I

4. 1150 20. 1150

5. 1151 21. 1154

6. 1153 22. 1149 i

7, 1150 23. 1149 j

8. 1152 24. 1149

9. 1150 25. 1151

10. 1151 26. 1149

11. 1150 27. 1148 12 1151 28. 1151

13. 1151 29. 1145 14, 1147 30. 1145

15. 1148 31. NA

16. 1150 E-2 l

AVERAGE DAILY UNIT POWER LEVEL i

DOCKET NO. 50-328 UNIT NO. TWO DATE: 05/08/98 COMPLETED BY: Tanya J. Hollomon TELEPHONE (423)843-7528 MONTH April 1998 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net) i

1. 1145 17. 1148

2. 1148 18. 1146

3. 1148 19. 1148

4. 1140 20. 1151

5. 1139 21. 1119

6. 1141 22. 1147

7. 1140 23. 1144

8. 1135 24. 1147 l

9. 1142 25. 1147

10. 1152 26. 1147

11. 1150 27. 1147 12 1149 28. 1144 l 13. 1145 29. 1146

14. 1144 30. 1146

15. 1146 31. NA

16. 1145 E-3

OPERATING DATA REPORT j Docket No. 50-327 i Date: 05/08/98 Completed By: Tanya J. Hollomon Telephone: (423) 843-7528

1. Unit Name: SON Unit 1

2. Reporting Period: April 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

7. Maximum Dependable Capacity (Net MWe): 1122

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. Hours in Reporting Period 719 2.879 147.552

12. Number of Hours Reactor was Critical 719.0 2.879.0 87.735

13. Reactor Reserve Shutdown Hours 9 9 9

14. Hours Generator On-Line 719.0 2.879.0 85.938.6

15. Unit Reserve Shutdown Hours 0 0 g

16. Gross Thermal Energy Generated (MWh) 2.450.106.3 9.811.067.6 281.055.063

17. Gross Electric Energy Generated (MWh) 853.486 3.422.352 95.823.479

18. Net Electrical Energy Generated (MWh) 827.110 3.317.240 92.017.137

19. Unit Service Factor 100.0 100.0 58.2

20. Unit Availability Factor 100.0 100.0 58.2

21. Unit Capacity Factor (Using MDC Net) 102.5 102.7 55.6

22. Unit Capacity Factor (Using DER Net) 100.2 100.4 54.3

23. Unit Forced Outage Rate 0.0 0.0 29.4

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): Unit 1 Cvele 9 refueline outace is scheduled to start September 6.1998 with a duration of 40 days.

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

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OPERATING DATA REPORT Docket No. 50-328 Date: 05/08/98 Completed By: Tanya J. Hollomon Telephone: (423) 843-7528

1. Unit Name: SON Unit 2

2. Reporting Period: April 1998

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3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross MA): 1220.6 i

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 This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 719 2.879 139.512

12. Number of Hours Reactor was Critical 719.0 2.879.0 90.534

13. Reactor Reserve Shutdown Hours Q g g

14. Hours Generator On-Line 719.0 2.879.0 , 88.553.5

15. ' Unit Reserve Shutdown Hours Q R q

16. Gross Thermal Energy Generated (MWh) 2.450.780.7 9.813.',71.1 283.790.707

17. Gross Electric Energy Generated (MWh) 849.812 3.406.044 96.631.408

18. Net Electrical Energy Generated (MWh) 823.772 3.306.420 92.711.782

19. Unit Service Factor 100.0 100.0 63.5

20. Unit Availability Factor 100.0 100.0 63.5

21. Unit Capacity Factor (Using MDC Net) 102.6 102.8 59.5

22. Unit Capacity Factor (Using DER Net) 99.8 100.0 57.9

23. Unit Forced Outage Rate 0.0 0.0 28.5

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): N/A

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

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