ML032260041

July 2003 Monthly Operating Report for Vermont Yankee

ML032260041
Person / Time
Site:	Vermont Yankee
Issue date:	08/07/2003
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-03-71
Download: ML032260041 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee

.322 Governor Hunt Rd.

-1.-Entergy PO. Box 157 Vernon, Vr 05354 Tel 802-257-7711 -

August 07, 2003 BVY-03-71 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 JuIy. 2003.

Kevin H. Bronson General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager f'." Ir-e C') q

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 03-07 FOR THE MONTH OF JULY 2003

OPERATING DATA REPORT DOCKETNO.50-271 DATE 030807 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Period: July

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 5087.00 271248.80

12. Number Of Hours Reactor was Critical 744.00 5087.00 228235.83

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 5087.00 224600.78

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1178500.85 8046402.03 340426818.84

17. Gross Electrical Energy Generated(MWH) 392870.00 2757210.00 114338140.00

18. Net Electrical Energy Generated(MWH) 370028.00 2636884.00 108819243.00

19. Unit Service Factor 100.00 100.00 82.80

20. Unit Availability Factor 100.00 100.00 82.80

21. Unit Capacity Factor(Using MDC Net) 100.20 102.00 79.40

22. Unit Capacity Factor(Using DER Net) 97.90 99.70 77.70

23. Unit Forced Outage Rate 0.00 0.00 3.85

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each: N/A

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 030807 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH July DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 499 :17. 499

2. 498 18. 501

3. 497 19. 501

4. 495 20. 499

5. 496 21. 500

6. 497 22. 503

7. 497 23. 444

8. 498 24. 500

9. 498 25. 505

10. 498 26. 507

11. 501 27. 501

12. 501 28. 501

13. 503 29. 501

14. 502 30. 474

15. 501 31. 498

16. 498 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)

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH JULY DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 030807 COMPLETED BY G.A. Wallinr TELEPHONE (802)258-5414 1 2 3 4 5 Cause and Corrective Action to Prevent No. Date Type Duration Reason Method of License System Component Recurrence.

Shutting Event Code Code (hours) Down Report #

Reactor 03-05 030723 F 0.00 A 4 N/A EA ELECON 379 transmission \line work Power Reduction 03-06 030730 S 0.00 B, H* 4 N/A RB CONROD Turbine bypass, stop and Power MSIV valve testing, and a Reduction rod pattern adjustment.

-1 1 F: Forced .2 Reason; 3 Metho d: 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 F-Administrative G-Operational Error (Explain)

• H-(Explain) - rod pattern adjustment VYDPF 0411.03 DP 0411 Rev. 8 Page 1 of 1

DOCKET NO. 50-271 DATE 030807 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH July

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.4% of rated thermal power for the month.

Gross electrical generation was 392,870 MWHe or 96.7% 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.

030723 At 1005 hours0.0116 days <br />0.279 hours <br />0.00166 weeks <br />3.824025e-4 months <br />, commenced a power reduction to 79% to support 379 transmission line repairs. (See Unit Shutdowns and Power Reductions) 030723 At 2235 hours0.0259 days <br />0.621 hours <br />0.0037 weeks <br />8.504175e-4 months <br />, began a return to full power following repairs to the 379 transmission line.

030730 At 0902 hours0.0104 days <br />0.251 hours <br />0.00149 weeks <br />3.43211e-4 months <br />, commenced a power reduction to 69% to perform turbine bypass and stop valve testing, MSIV full closure testing, and a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 030730 At 0949 hours0.011 days <br />0.264 hours <br />0.00157 weeks <br />3.610945e-4 months <br />, commenced a rod pattern adjustment.

030730 At 0953 hours0.011 days <br />0.265 hours <br />0.00158 weeks <br />3.626165e-4 months <br />, completed the rod pattern adjustment.

030730 At 1003 hours0.0116 days <br />0.279 hours <br />0.00166 weeks <br />3.816415e-4 months <br />, commenced MSIV full closure testing.

030730 At 1025 hours0.0119 days <br />0.285 hours <br />0.00169 weeks <br />3.900125e-4 months <br />, completed MSIV full closure testing.

030730 At 1032 hours0.0119 days <br />0.287 hours <br />0.00171 weeks <br />3.92676e-4 months <br />, commenced turbine stop valve testing.

030730 At 1057 hours0.0122 days <br />0.294 hours <br />0.00175 weeks <br />4.021885e-4 months <br />, commenced turbine bypass valve testing.

030730 At 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br />, completed turbine stop and bypass valve testing.

030730 At 1137 hours0.0132 days <br />0.316 hours <br />0.00188 weeks <br />4.326285e-4 months <br />, began 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)

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