ML20237B846

Monthly Operating Rept for July 1998 for Monticello Nuclear Generating Plant

ML20237B846
Person / Time
Site:	Monticello
Issue date:	07/31/1998
From:	Paustian H, Voth M NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9808200018
Download: ML20237B846 (5)

Text

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Northem States Power Company Monticello Nuclear Generating Plant l 2807 West Hwy 75 '

Monticello, Minnesota 55362 9637 l

l August 10,1998 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 l

MONTICELLO NUCLEAR GENERATING PLANT j Docket No. 50-263 License No. DPR-22 '

Submittal of Monticello Monthly Operating Report for July,1998 I

I In accordance with Monticello Technical Specification 6.7.A.3, the report of operating statistics for the Monticello Nuc; * .r Generating Plant for the Month of July is provided.

Please contact Marcus H. Voth, Project Manager - Licensing at (612) 271-5116 if you require further information.

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Marcus H. Voth j Project Manager - Licensing 1 Nuclear Energy Engineering Dept.

c: Regional Administrator - Ill, NRC ,

NRR Project Manager, NRC i Sr Resident inspector, NRC / l State of Minnesota Attn: Kris Sanda

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.. .mo, 9808200018 980731 PDR ADOCK 0S000263 R PDR 1

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OPERATING DATA REPORT l

DOCKET NO. 50-263 DATE 8- 3-98 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 OPERATING STATUS

] Notes ]

1. Unit Name -

Monticello ] ]

2. Reporting eriod: July ] ]

3. Licensed T ermal Power (MWt): 1670 ] ]

4. Nameplate Rating (Gross MWe) : 576.5 ] ]

5. Design Electrical Rating (Net Mwe) : 552.9 ) ]

6. Maximum Dependable Capacity (Gross MWe) : 571.5 ] ]

7. Maximum Dependable Capacity (Net MWe) : 543.5 ] ]

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 5087 237432

12. Number Of Hours Reactor Was Critical 744.0 4242.1 194286.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7

14. Hours Generator On-Line 744.0 4205.4 191139.7

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1235964 6686665 297542270

17. Gross Electrical Energy Generated (MWH) 414637 2284333 100765708

18. Net Electrical Energy Generated (MG) 395688 2186393 96447450

19. Unit Service Factor 100.0% 82.7% 80.5%

20. Unit Availability Factor 100.0% 82.7% 80.5%

21. Unit Capacity Factor (Using MDC Net) 97.9% 79.1% 75.7%

22. Unit Capacity Factor (Using DER Net) 96.2% 77.7% 74.4%

23. Unit Forced Outage Rate 0.0% 0.0% 4.3%

24. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of Each)

_None

25. If Shut Down At End Of Report Period, Estimated Date Of Startup:

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 L

l . ,

DOCKET NO. 50-263 l

l UNIT DATE Monticello_

8- 3-98 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 MONTH OF July l DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 538. 17 532.

2 536. 18 530.

l 3 539. 19 75.

4 538, 20 532.

5 539. 21 531.

6 539, 22 535.

7 538. 23 532.

! 8 537, 24 535.

9 535. 25 535.

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10 535. 26 535. )

11 533. 27 539.

12 533. 28 528.

l 13 S31. 29 538. ,

14 508. 30 535. l l

15 530. 31 535.

16 532.

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INSTRUCTIONS I On this format, list the average daily unit power level in MWe-Net for each k day in the reporting month. Compute to the nearest whole megawatt.

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C' NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50-263 DATE 8- 3-98 COMPLETED BY H. H. Padhtian TELEPHONE 612/295-5151 MONTH JUL 07-01-98 to Power operation.

07-19-98 Power reduction to approximately 65% for isophase bus cooling 07-19-98 repairs and quarterly Main Steamline Isolation Valve (MSIV) testing.

07-19-98 to Power operation.

07-31-98 Note: Power operation defined as essentially 100% of rated power except for weekend load drops for specified surveillance testing.

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