BVY-99-077, Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With

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Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With
ML20195G561
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 05/31/1999
From: Balduzzi M, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-99-077, BVY-99-77, NUDOCS 9906160101
Download: ML20195G561 (6)
v • d • e


Text

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  • l VERMONT YANKEE NUCLEAR POWER CORPORATION P.O. Box 157, Govemor Hunt Road .' l Vemon, Vermont 05354-0157 j (802) 257-7711 j l.

J June 10,1999 I BVY-99-077 )

United States Nuclear Regulatory Commission

ATTN: DocumentControlDesk Washington, D.C. 20555 i

Reference (a) License No. DPR-28 (Docket No. 50-271)'

In accordance with sechon 6.7. A.3 of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nucleu .

Power Station for the month of May.1999. ~

Sincerely,

. VERMONT YANKEE NUCtEAR POWER CORPORATION

- g- 1 M' A. Balduzzi  !/ ,

l Plant Manager

/j ec: 'USNRCRegionI Administrator.  !

USNRC Rendent Inspector-VYNPS

.USNRC Project Manager-VYNPS /[,

Vermont Department ofPublic Service (

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PDR A PDR271at i R

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 99-05 FOR THE MONTH OF MAY 1999 l

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', OPERATING DATA REPORT DATE 990610 COMPLETED BY G.A. WALLIN l- TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee
2. Reporting Period: May
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 NWe): 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 I This Month Yr-to-Date Cumulative
11. Hours in Reporting Period 744.00 3623.00 231527.00 l
12. Number Of Hours Reactor was Critical 744.00 3623.00 193824.16
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 744.00 3623.00 190347.00 l
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated (MWH) 1176983.50 5732752.20 286812413.70
17. Gross Electrical Energy Generated (MWH). 402956.00 1974574.00 96016771.00 l 18.' Net Electrical Energy Generated (MWH) 383797.00 1895255.00 91336706.00
19. Unit Service Factor 100.00 100.00_ 81.1.0
20. Unit Availability Factor 100.00 100.00 81.10
21. Unit Capacity Factor (Using MDC Net) 101.10 102.60 77.10
22. Unit Capacity Factor (Using DER Net) 98.80 100.20 75.50
23. Unit Forced Cut *ge Rate 0.00 0.00 4.45
24. Shutdowns scheouled over next 6 months (Type, Date, and Duration of Each: 1999 Refueling Outage scheduled to begin on October 29,1999 and end on November 30, 1999.
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. 7 Page 1 of 1 RT No. 13.F01.19F

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', AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 990610 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH May DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 526 17. 511
2. 526 18. 505
3. 525 19. 506
4. 524 20. 516
5. 524 21. 519
6. 524 22. 519
7. 524 s 23. 519
8. 524 24. 516
9. 512 25. 431 10, 516 26. 515
11. 522 27. 517
12. 519 28. 521
13. 521 29. 520 ,
14. 526 30. 513
15. 525 31. 513 i
16. 513 l 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.

I VYDPF 0411.02 (Sample) J DP 0411 Rev. 7 Page 1 of 1 RT No. 13.F01.18V I

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  • DOCKET NO. 50-271 DATE 990610 x

COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT. MONTH May

SUMMARY

OF OPERATING EXPERIENCES'

Highlights'

~ Vermont Yankee < operated at 99.3% of rated thermal power'for the month,-

Gross electricalfgeneration was- 402,956 MWHe or 99.2% design electrical capacity.

-Operating Summary LTherfollowing is'a chronological. description of plant operations including other pertinent' items'of interest for the month:

,A7 :,he beginning of the reporting' period the plant was operating at 99.9%

Lof rated thermal power.

-990525 At 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br />,-reducing power to minimum recirculation flow to perform. scheduled maintenance,.surveillances, single rod scram testing, and a rod' pattern exchange. (See Unit Shutdowns and Power Reductions).

990525 -At 0240 hours0.00278 days <br />0.0667 hours <br />3.968254e-4 weeks <br />9.132e-5 months <br />, initiated MSIV full closure and Turbine bypass

-valve testing.

990525 At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, completed MSIV full closure and Turbine bypass valve testing.

990525 1At-.0335 hours0.00388 days <br />0.0931 hours <br />5.539021e-4 weeks <br />1.274675e-4 months <br />,-initiated single rod scram testing.

990525L1At 0445' hours,. initiated a rod pattern exchange.

.990525~ At 1013 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.854465e-4 months <br />, completed /the rod pattern exchange and single rod scram' testing.

990525 <At.;1042 hours0.0121 days <br />0.289 hours <br />0.00172 weeks <br />3.96481e-4 months <br />,-initiated:a return to full power.

At the end of the reportin'g period the plant was' operating at 99.9%~of rated thermal power.

-VYDPF:0411.04 (Sample)~

DP-0411 Rev.'7.

Page 1 of 1 RT No. 13.F01.18X L_' .

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