ML20198A208

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Monthly Operating Rept for Apr 1986
ML20198A208
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 04/30/1986
From: Murphy W, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC
References
VYV-86-128, NUDOCS 8605200367
Download: ML20198A208 (7)


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F VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 86-04 FOR THE MONTH OF APRIL, 1986 1

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F OPERATING DATA REPORT Docket No.

50-271 Date 860510 Completed by G.A. Wallin Telephone (802) 257-7711 OPERATING STATUS Notes:

1.

Unit Name:

Vermont Yankee 2.

Reporting Period:

April 3.

Licensed Thermal Power (MWt):

1593 4.

Nameplate Rating (Gross MWe):

540 5.

Design Electrical Rating (Net MWe):514(oc) 504(cc) 6.

Maximum Dependable Capacity (Gross MWe):

535 7.

Maximum Dependable Capacity (Net MWe):

504 8.

If changes occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:

N/A 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 719.00 2879.00
12. Number of Hours Reactor was Critical 0.00 0.00 93111.06
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 0.00 0.00 90718.35
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated (MWH) 0.00 0.00 132109630.50
17. Gross Electrical Energy Generated (MWH) 0.00 0.00 43955902.00
18. Net Electrical Energy Generated (MWH) 0.00 0.00 41700250.00 19,. Unit Service' Factor 0.00 0.00
  • 76.06

-20.LUnit Availability Factor 0.00 0.00 76.06

21. Unit Capacity Factor (using MDC Net) 0.00 0.00 69.37
22. Unit Capacity Factor (using DER Net) 0.00 0.00

'68.02

23. Unit Forced Outage Rate 0.00 0.00 6.92
24. Shutdowns scheduled over next 6 months (Type, Date and Duration of Each):

Refueling outaae began September 21, 1985 for 40 weeks.

25. If shut down at end of report period, estimated date of startup:

June 26, 1986

26. Units in Test Status (prior to commercial operation): N/A Forecast Achieved Initial Criticality Initial Electricity Commercial Operation

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' AVERAGE DAILY UNIT POWER LEVEL Docket No.

50-271 Unit Vermont Yankee Date 860510 Completed by G.A. Wallin Telephone (802) 257-7711 MONTH April DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 0

2 0

18 0

3 0

19 0

4 0

20 0

5 0

21 0

6 0

22 0

-7 0

23 0

8 0

24 0

9 0

25 0

10 0

26 0

11 0

27 0*

12 0

28 0

' 13 0

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0 14 0

30 0

15 0

31 16 0

  • 23 hour day 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.

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Dock 3t No.

'50-271

. Unit V5rmont Yrnkee UNIT SHUTDOWNS AND POWER' REDUCTIONS Date 860510 Completed by G. A. Wallin REPORT MONTH April Telephone (802) 257-7711 1

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No.

Date Type Duration Reason Method of License Systen Component

'Cause and Corrective Action to (hours)

Shutting Down Event Code Code Prevent Recurrence Reactor Report #

85-14 860401 S

719 C

1 N/A N/A N/A 1985 Refueling / Maintenance /Recirc (cont)

Pipe Replacement Outage in progress.

F-Forced A-Equipment Failure (Explain),

3 4

1 2

Method:

Exhibit G - Instructions S-Scheduled B-Maintenance or Test 1-Manual for Preparation of Data Entry C-Refueling 2-Manual Scram Sheets for Licensee Event D-Regulatory Restriction 3-Automatic Scram Report (LER) File (NUREG 0161)

E-Operator Training and License Examination 4-Other (Explain)

F-Administrative 5

G-Operational Error (Explain)

Exhibit I - Same Source H-Other (Explain) 9 I

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Docket No.

50-271 Unit V3rmont Yrnkee Date 860510 Completed by G.A. Wallin Telephone (802) 257-7711 REPORT MONTH April

SUMMARY

OF OPERATING EXPERIENCES Hinblights Vermont Yankee operated at 0% of rated thermal power for the month.

Gross electrical generation was O

MWH* or 0% of design electrical capacity.

Operatina Summary The following is a chronological description of plant operations iracluding other pertinent items of interest for the month:

Throughout the reporting period, the plant was shutdown for the 1985/1986 Refueling / Maintenance /Recire Pipe Replacement Outage.

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VERhiONT YANKEE NUCLEAR POWER CORPOR ATION P. O. BOX 157 GOVERNOR IIUNT ROAD VERNON, VERMONT 05354 VYV 86-128 May 10, 1986 U. S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Washington, D. C.

20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of April,1986.

Very truly yours, VERM0 IT YANKEE NUCLEAR POWER CORP.

h Warren P. Murphy Vice President and Manager of Operations WPM /GAW/gnv:MSR1.lA4SR (jY r

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