ML031060389

March 2003 Monthly Operating Report for Vermont Yankee

ML031060389
Person / Time
Site:	Vermont Yankee
Issue date:	04/10/2003
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-03-34
Download: ML031060389 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc Vermont Yankee

-- Entergy 322 Governor Hunt Rd PO Box 157 Vernon, VT 05354 Tel 802-257-771 1 April 10, 2003 BVY-03-34 United States Nuclear Regulatory Commission ATITN: 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 March, 2003.

Sincere ,

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

,C' -/1

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

OPERATING DATA REPORT DOCKET NO.50-271 DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Period: March

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 2160.00 265128.00

12. Number Of Hours Reactor was Critical 744.00 2160.00 225308.83

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 2160.00 221673.78

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1182174.40 3401416.75 335781833.54

17. Gross Electrical Energy Generated(MWH) 408799.00 1176377.00 112757307.00

18. Net Electrical Energy Generated(MWH) 393094.00 1130743.00 107313102.00

19. Unit Service Factor 100.00 100.00 82.60

20. Unit Availability Factor 100.00 100.00 82.60

21. Unit Capacity Factor(Using MDC Net) 103.60 102.60 79.10

22. Unit Capacity Factor(Using DER Net) 101.20 100.30 77.50

23. Unit Forced Outage Rate 0.00 0.00 3.90

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 I DOCKET NO. 50-271 UNIT Vermont Yankee DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH March DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 530 17. 529

2. 530 18. 530

3. 530 19. 529

4. 530 20. 529

5. 530 21. 529

6. 529 22. 529

7. 530 23. 530

8. 530 24. 529

9. 530 25. 529

10. 529 26. 529

11. 529 27. 529

12. 529 28. 529

13. 529 29. 529

14. 529 30. 495

15. 530 31. 529

16. 529 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 MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 030410 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 03-03 030329 F 0.00 A 4 N/A EC CKTBRK Relay failure on 379 ATB Power causing logic trip to open Reduction 381, 379, 79-40 ATB's and K-1 OCB.

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)

I-DOCKET NO. 50-271 DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.7 of rated thermal power for the month.

Gross electrical generation was 408,799 MWHe or 100.6% 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.

030329 At 2143 hours0.0248 days <br />0.595 hours <br />0.00354 weeks <br />8.154115e-4 months <br />, a relay failed on the 379 Air Trip Breaker causing logic to trip open 381, 379, 79-40 ATB's and the K-1 Oil Circuit Breaker. (See Unit Shutdowns and Power Reductions) 030330 At 0005 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />, commenced power reduction to 77%.

030330 At 0519 hours0.00601 days <br />0.144 hours <br />8.581349e-4 weeks <br />1.974795e-4 months <br />, following isolation of 379 ATB and breakers 381, 79-40, and K-1 being closed; a return to full power was initiated.

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