ML022610248

August 2002 Monthly Operating Report for Vermont Yankee Nuclear Power Station

ML022610248
Person / Time
Site:	Vermont Yankee
Issue date:	09/10/2002
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-02-72
Download: ML022610248 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee

' Entergy 322 Governor Hunt Rd.

PO. Box 157 Vernon, Vr 05354 Tel 802-257-7711 September 10, 2002 BVY-02-72 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Reference:

(a) License No. DPR-28 (Docket No. 50-271)

In accordance with section 6.6.B of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of August, 2002.

Sinc;rel Kevin H. Bronson General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 02-08 FOR THE MONTH OF AUGUST 2002

OPERATING DATA REPORT DOCKET NO.50-271 DATE 020910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Period: August

3. Licensed Thermal Power(MWt):1593

4. Nameplate Rating(Gross MWe): 540

5. Design Electrical Rating(Net MWe): 522

6. Maximum Dependable Capacity(Gross MWe): 535

7. Maximum Dependable Capacity(Net MWe): 510

8. If changes, occur in capacity ratings(Items Number 3 through 7) since last report, give reasons:

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 744.00 5831.00 260039.00

12. Number Of Hours Reactor was Critical 744.00 5574.88 220690.30

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 5547.70 219094.14

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1172599.70 8442092.58 3 28632176.76

17. Gross Electrical Energy Generated(MWH) 389037.00 2874360.00 1 10303949.00

18. Net Electrical Energy Generated(MWH) 365720.00 2744870.00 1 04964613.00

19. Unit Service Factor 100.00 95.10 82.50

20. Unit Availability Factor 100.00 95.10 82.50

21. Unit Capacity Factor(Using MDC Net) 96.40 92.30 78.90

22. Unit Capacity Factor(Using DER Net) 94.20 90.20 77.30

23. Unit Forced Outage Rate 0.00 0.00 3.98

24. Shutdowns scheduled over next 6 months(Type, Date, and Duration of Each: 10/05/2002 to 10/21/2002 for scheduled refueling outage.

25. If shut down at end of report period, estimated date of startup: N/A

26. Units In Test Status(prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.19F

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 020910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH August DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 498 17. 491

2. 497 18. 476

3. 496 19. 495

4. 497 20. 498

5. 499 21. 499

6. 500 22. 495

7. 500 23. 496

8. 371 24. 501

9. 479 25. 501

10. 498 26. 497

11. 492 27. 499

12. 492 28. 501

13. 496 29. 500

14. 492 30. 497

15. 489 31. 503

16. 490 INSTRUCTIONS:

On this format, list the average daily unit power level in MWE-Net for each day in the reporting month. Compute to the nearest whole megawatt.

VYDPF 0411.02 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.F01.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH AUGUST DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 020910 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 1 2 3 4 5 No. Date Type Duration Reason Method of License System Component Cause and Corrective (hours) Shutting Event Code Code Action to Prevent Down Report # Recurrence Reactor 02-13 020808 S 0.00 B,H* 4 N/A RB CONROD Turbine bypass valve, MSIV Power full closure testing, and a Reduction rod pattern adjustment 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 1 - Manual for Preparation of Data B-Maintenance or Test 2 - Manual Scram Entry Sheets for License C-Refueling 3 - Automatic Scram Event Report (LER) File D-Regulatory Restriction 4 - Other (Explain) (NUREG 0161)

E-Operator Training and License Examination 5 Exhibit I - Same Source VYDPF 0411.03 F-Administrative DP 0411 Rev. 8 G-Operational Error (Explain)

Page 1 of 1 *H-(Explain) Rod pattern adjustment

DOCKET NO. 50-271 DATE 020910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH August

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 98.9 of rated thermal power for the month.

Gross electrical generation was 389,037 MWHe or 95.7% design electrical capacity.

Operating Summary The following is a chronological description of plant operations including other pertinent items of interest for the month:

At the beginning of the reporting period the plant was operating at 99.9%

of rated thermal power.

020808 At 0120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />, reducing power to 65% to perform turbine bypass valve testing, MSIV full closure testing, and a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 020808 At 0244 hours0.00282 days <br />0.0678 hours <br />4.034392e-4 weeks <br />9.2842e-5 months <br />, commenced turbine bypass valve testing.

020808 At 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />, commenced MSIV full closure testing.

020808 At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, completed MSIV full closure testing.

020808 At 0440 hours0.00509 days <br />0.122 hours <br />7.275132e-4 weeks <br />1.6742e-4 months <br />, completed turbine bypass valve testing.

020808 At 0445 hours0.00515 days <br />0.124 hours <br />7.357804e-4 weeks <br />1.693225e-4 months <br />, commenced a rod pattern adjustment.

020808 At 0510 hours0.0059 days <br />0.142 hours <br />8.43254e-4 weeks <br />1.94055e-4 months <br />, completed the rod pattern adjustment.

020808 At 0607 hours0.00703 days <br />0.169 hours <br />0.001 weeks <br />2.309635e-4 months <br />, commenced a return to full power.

At the end of the reporting period the plant was operating at 99.9% of rated thermal power.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.18X