ML051030298

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March 2005 Monthly Operating Report for Vermont Yankee Nuclear Power Station
ML051030298
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 04/07/2005
From: Maguire W
Entergy Nuclear Northeast, Entergy Nuclear Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-05-036
Download: ML051030298 (6)
v • d • e


Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee

- Entergy 322 Governor Hunt Rd.

RO. Box 157 Vernon, VT 05354 Tel 802-257-7711 April 07, 2005 BVY-05-036 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 March, 2005.

Sincerely, William F/Mag9pre General Iamer, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager

.1,

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 05-03 FOR THE MONTH OF MARCH 2005

OPERATING DATA REPORT DOCKETNO.50-271 DATE 050407 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: 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 I 11. Hours in Reporting Period 744.00 2160.00 285865.80

12. Number Of Hours Reactor was Critical 744.00 2160.00 241620.22
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 744.00 2160.00 237888.06
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated(MWH) 1181143.20 3397214.40 361397291.54
17. Gross Electrical Energy Generated(MWH) 395662.00 1135707.00 121405292.00
18. Net Electrical Energy Generated(MWH) 380315.00 1091036.00 115575568.00
19. Unit Service Factor 100.00 100.00 83.22
20. Unit Availability Factor 100.00 100.00 83.22
21. Unit Capacity Factor(Using MDC Net) 100.23 99.04 79.93
22. Unit Capacity Factor(Using DER Net) 97.93 96.76 78.28
23. Unit Forced Outage Rate 0.00 0.00 3.87
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 050407 COt IPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH MARCH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MVqe-Net)

1. 513 .17. 513
2. 513 18. 513
3. 513 19. 513
4. 513 20. 513
5. 513 21. 513
6. 513 22. 513
7. 513 23. 513
8. 513 24. 513
9. 513 25. 513
10. 513 26. 513
11. 513 27. 513
12. 513 28. 513
13. 513 29. 460
14. 513 30. 513
15. 513 31. 513
16. 513 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.F01.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 050407 COMPLETED BY G.A. Wallin 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 05-02 050329 S 0.00 B,H* 4 N/A RB CONROD Turbine bypass, stop valve Power and MSIV full closure Reduction testing. Rod pattern exchange.

1 F: Forced 2 Reason: 3 Meth(:od: 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 050407 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 395,662 MWHe or 97.4% 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.

050329 At 0803 hours0.00929 days <br />0.223 hours <br />0.00133 weeks <br />3.055415e-4 months <br />, commenced a power reduction to 68% to perform turbine bypass, stop valve and MSIV full closure testing. Also, performed a rod pattern exchange. (See Unit Shutdowns and Power Reductions) 050329 At 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br />, commenced turbine bypass valve testing.

050329 At 0840 hours0.00972 days <br />0.233 hours <br />0.00139 weeks <br />3.1962e-4 months <br />, completed turbine bypass valve testing.

050329 At 0921 hours0.0107 days <br />0.256 hours <br />0.00152 weeks <br />3.504405e-4 months <br />, commenced turbine stop valve testing.

050329 At 0950 hours0.011 days <br />0.264 hours <br />0.00157 weeks <br />3.61475e-4 months <br />, completed turbine stop valve testing.

050329 At 1017 hours0.0118 days <br />0.283 hours <br />0.00168 weeks <br />3.869685e-4 months <br />, commenced MSIV full closure testing.

050329 At 1040 hours0.012 days <br />0.289 hours <br />0.00172 weeks <br />3.9572e-4 months <br />, completed MSIV full closure testing.

050329 At 1055 hours0.0122 days <br />0.293 hours <br />0.00174 weeks <br />4.014275e-4 months <br />, commenced a rod pattern exchange.

050329 At 1207 hours0.014 days <br />0.335 hours <br />0.002 weeks <br />4.592635e-4 months <br />, completed the rod pattern exchange.

050329 At 1243 hours0.0144 days <br />0.345 hours <br />0.00206 weeks <br />4.729615e-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)

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

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