ML023240392

October 2002 Monthly Operating Report for Vermont Yankee

ML023240392
Person / Time
Site:	Vermont Yankee
Issue date:	11/08/2002
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-02-90
Download: ML023240392 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc Vermont Yankee

. Enter gy 322 Governor Hunt Rd PO Box 157 Vernon, Vr 05354 Tel 802-257-7711 November 08, 2002 BVY-02-90 United States Nuclear Regulatory Commission AT1N: Document Control Desk Washington, D.C. 20555

Reference:

(a) License No. DPR-28 (Docket No. 50-27 1)

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 October, 2002.

Sincerely, 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 02-10 FOR THE MONTH OF OCTOBER 2002

OPERATING DATA REPORT DOCKET NO.50-271 DATE 021108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Peri()d: October

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 745.00 7296.00 261504.00

11. Hours in Reporting Period 274.53 6569.41 221684.83

12. Number Of Hours Reactor was Critical 0.00 0.00 0.00

13. Reactor Reserve Shutdown Hours 235.64 6503.34 218049.78

14. Hours Generator On-Line 0.00 0.00 0.00

15. Unit Reserve Shutdown Hours 301436.90 9860781.11 330050865.29

16. Gross Thermal Energy Generated(MWH)

17. Gross Electrical Energy Generated(MWH) 98674.00 3345608.00 110775197.00

18. Net Electrical Energy Generated(MWH) 93192.00 3188023.00,105407766.00 31.63 89.10 82.40

19. Unit Service Factor 31.63 89.10 82.40

20. Unit Availability Factor 24.50 85.70 78.80

21. Unit Capacity Factor(Using MDC Net) 77.20 24.00 83.70

22. Unit Capacity Factor(Using DER Net) 0.00 0.00 3.96

23. Unit Forced Outage Rate and Duration of

24. Shutdowns scheduled over next 6 months(Type, Date, 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 021108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH October DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 461 17. 0

2. 460 18. 0

3. 460 19. 0

4. 462 20. 0

5. 198 21. 0

6. 0 22. 0

7. 0 23. 0

8. 0 24. 0

9. 0 25. 0

10. 0 26. 0 0 *27. 67 11.

12. 0 28. 254

13. 0 29. 471

14. 0 30. 520

15. 0 31. 525

16. 0

• 25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> day 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.FO1.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS Al REPORT MONTH OCTOBER DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 021108 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 02-14 021005 S 509.36 B,C 1 N/A RB CONROD Shutdown for RFO-23 Refueling I _outage 02-15 021029 S 0.00 H 4 N/A RB CONROD Rod pattern adjustment Power Reduction 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 021108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH October

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 25.3 of rated thermal power for the month.

Gross electrical generation was 98,674 MWHe or 24.2% 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 93.0%

of rated thermal power.

021005 At 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, commenced a plant shutdown for the RFO-23 refueling.

(See Unit Shutdowns and Power Reductions) 021005 At 2320 hours0.0269 days <br />0.644 hours <br />0.00384 weeks <br />8.8276e-4 months <br />, the turbine-generator was removed from the grid.

021006 At 0220 hours0.00255 days <br />0.0611 hours <br />3.637566e-4 weeks <br />8.371e-5 months <br />, the reactor was sub-critical.

021025 At 1648 hours0.0191 days <br />0.458 hours <br />0.00272 weeks <br />6.27064e-4 months <br />, the reactor was critical. (See Unit Shutdowns and Power Reductions) 021027 At 0235 hours0.00272 days <br />0.0653 hours <br />3.885582e-4 weeks <br />8.94175e-5 months <br />, the turbine-generator was phased to the grid and began a return to full power.

021029 At 1953 hours0.0226 days <br />0.543 hours <br />0.00323 weeks <br />7.431165e-4 months <br />, reduced power to 68% for a rod pattern adjustment.

(See Unit Shutdowns and Power Reductions) 021029 At 2128 hours0.0246 days <br />0.591 hours <br />0.00352 weeks <br />8.09704e-4 months <br />, completed a rod pattern adjustment and began a return to full power.

At the end of the reporting period the plant was operating at 99.7% of rated thermal power.

VYDPF 0411.04 (Sample)

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