ML050550035

January 2005 Monthly Operating Report for the Vermont Yankee Nuclear Power Station

ML050550035
Person / Time
Site:	Vermont Yankee
Issue date:	02/16/2005
From:	Maguire W Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-05-013
Download: ML050550035 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee I Entergy 322 Governor Hunt Rd.

P.O. Box 157 Vernon, VT 05354 Tel 802-257-7711 February 16,2005 BVY-05-013 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 January, 2005.

Sincer William F. Maguire General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager

,,,, C--

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 05-01 FOR THE MONTH OF JANUARY 2005

OPERATING DATA REPORT DOCKETNO.50-271 DATE 050215 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Period: JANUARY

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: High pressure turbine was replaced during RFO-24 with a unit designed for 1912 MWt. This results in the unit running at a lower efficiency when at 1593 MWt or lower.

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744.00 744.00 284449.80

12. Number Of Hours Reactor was Critical 744.00 744.00 240204.22

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 744.00 236472.06

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1146127.20 1146127.20 359146204.38

17. Gross Electrical Energy Generated(MWH) 380997.00 380997.00 120650582.00

18. Net Electrical Energy Generated(MWH) 365760.00 365760.00 114850292.00

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) 96.40 96.40 79.80

22. Unit Capacity Factor(Using DER Net) 94.20 94.20 78.20

23. Unit Forced Outage Rate 0.00 0.00 3.89

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.F01.19F

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 050215 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH JANUARY DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 512 17. 513

2. 512 18. 512

3. 512 19. 509

4. 512 20. 512

5. 511 21. 512

6. 511 22. 512

7. 512 23. 512

8. 512 24. 512

9. 512 25. 512

10. 511 26. 512

11. 512 27. 512

12. 512 - 28. 512

13. 484 29. 512

14. 281 30. 513

15. 276 31. 513

16. 376 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 JANUARY DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 050215 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 12 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 05-01 050113 S 0.00 B,H* 4 N/A RB CONROD Turbine bypass, stop valve Power and MSIV full closure Reduction testing. Rod pattern exchange, single rod scram testing, and condenser water box maintenance.

1 F: Forced 2 Reason: 3 MethcAd: 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 050215 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 REPORT MONTH JANUARY

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 96.7% of rated thermal power for the month.

Gross electrical generation was 380,997 MWHe or 93.7% 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.

050113 At 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, commenced a power reduction to 62% to perform turbine bypass, stop valve and MSIV full closure testing. Also, a rod pattern exchange, single rod scram testing and condenser water box maintenance. (See Unit Shutdowns and Power Reductions) 050113 At 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br />, commenced turbine bypass valve testing.

050113 At 2055 hours0.0238 days <br />0.571 hours <br />0.0034 weeks <br />7.819275e-4 months <br />, completed turbine bypass valve testing.

050113 At 2118 hours0.0245 days <br />0.588 hours <br />0.0035 weeks <br />8.05899e-4 months <br />, commenced a rod pattern exchange.

050113 At 2210 hours0.0256 days <br />0.614 hours <br />0.00365 weeks <br />8.40905e-4 months <br />, completed the rod pattern exchange.

050114 At 0025 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />, commenced condenser water box maintenance.

050114 At 0838 hours0.0097 days <br />0.233 hours <br />0.00139 weeks <br />3.18859e-4 months <br />, commenced MSIV full closure testing.

050114 At 0904 hours0.0105 days <br />0.251 hours <br />0.00149 weeks <br />3.43972e-4 months <br />, completed MSIV full closure testing.

050114 At 0931 hours0.0108 days <br />0.259 hours <br />0.00154 weeks <br />3.542455e-4 months <br />, commenced turbine stop valve testing.

050114 At 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />, completed turbine stop valve testing.

050114 At 1905 hours0.022 days <br />0.529 hours <br />0.00315 weeks <br />7.248525e-4 months <br />, commenced single rod scram testing.

050114 At 2325 hours0.0269 days <br />0.646 hours <br />0.00384 weeks <br />8.846625e-4 months <br />, completed single rod scram testing.

050116 At 1234 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.69537e-4 months <br />, completed condenser water box maintenance and 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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