ML041050135

March 2004 Monthly Operating Report from Vermont Yankee

ML041050135
Person / Time
Site:	Vermont Yankee
Issue date:	04/09/2004
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-04-036
Download: ML041050135 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee a=Entergy 322 Governor Hunt Rd.

P.O. Box 157 Vernon, VT 05354 Tel 802-257-7711 April 09,2004 BVY-04-036 United States Nuclear Regulatory Commission ANTN: 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, 2004.

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 04-03 FOR THE MONTH OF MARCH 2004

OPERATING DATA REPORT DOCKETNO.50-271 DATE 040409 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Peric)d: 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 2184.00 277105.80

12. Number Of Hours Reactor was Critical 744.00 2184.00 233985.22

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 2184.00 230310.69

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1180721.60 3472562.70 349445552.44

17. Gross Electrical Energy Generated(MWH) 407360.00 1198111.00 117430363.00

18. Net Electrical Energy Generated(MWH) 391126.00 1150647.00 111777158.00

19. Unit Service Factor 100.00 100.00 83.10

20. Unit Availability Factor 100.00 100.00 83.10

21. Unit Capacity Factor(Using MDC Net) 103.10 103.30 79.80

22. Unit Capacity Factor(Using DER Net) 100.70 100.90 78.10

23. Unit Forced Outage Rate 0.00 0.00 3.81

24. Shutdowns scheduled over next 6 months(Type, Date, and Duration of Each: 04/03/2004 to 05/03/2004 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 040409 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. 528 17. 527

2. 528 18. 527

3. 528 19. 527

4. 528 20. 527

5. 528 21. 527

6. 528 22. 527

7. 528 23. 527

8. 528 24. 528

9. 521 25. 528

10. 528 26. 528

11. 528 27. 527

12. 528 28. 527

13. 528 29. 526

14. 527 30. 526

15. 527 31. 527

16. 482 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 040409 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414

.1 2Cause and Corrective

. Action to Prevent No. Date Type Duration Reason Method of License System Component Recurrence.

Shutting Event Code Code (hours) Down Report #

Reactor 04-01 040316 S 0.00 B,H* 4 N/A RB CONROD Turbine and MSIV valve Power testing, and a rod pattern Reduction _ exchange.

1 F: Forced 2 Reason: 3 Met] iod: 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 exchange VYDPF 0411.03 DP 0411 Rev. 8 Page 1 of 1

DOCKET NO. 50-271 DATE 040409 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.6% of rated thermal power for the month.

Gross electrical generation was 407,360 MWHe or 100.2% 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 99.9%

of rated thermal power.

040316 At 0802 hours0.00928 days <br />0.223 hours <br />0.00133 weeks <br />3.05161e-4 months <br />, commenced a power reduction to 70% to perform turbine valve and MSIV full closure testing, and a rod pattern exchange.

(See Unit Shutdowns and Power Reductions) 040316 At 0840 hours0.00972 days <br />0.233 hours <br />0.00139 weeks <br />3.1962e-4 months <br />, commenced turbine valve testing.

040316 At 0945 hours0.0109 days <br />0.263 hours <br />0.00156 weeks <br />3.595725e-4 months <br />, completed turbine valve testing.

040316 At 0948 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.60714e-4 months <br />, commenced MSIV full closure testing.

040316 At 1005 hours0.0116 days <br />0.279 hours <br />0.00166 weeks <br />3.824025e-4 months <br />, completed MSIV full closure testing.

040316 At 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br />, commenced a rod pattern exchange.

040316 At 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br />, completed the rod pattern exchange.

040316 At 1138 hours0.0132 days <br />0.316 hours <br />0.00188 weeks <br />4.33009e-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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