ML20217F643

Monthly Operating Rept for Mar 1998 for Monticello Nuclear Generating Plant

ML20217F643
Person / Time
Site:	Monticello
Issue date:	03/31/1998
From:	Paustian H, Voth M NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9804280217
Download: ML20217F643 (5)

Text

.

Northem States Power Company I

Monticello Nuclear Generating Plant 2807 West Hwy 75 Monticello, Minnesota 55362-9637 April 13,1998 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Submittal of Monticello Monthly Operating Report for March,1998 in accordance with Monticello Technical Specification 6.7.A.3, the report of operating statistics for the Monticello Nuclear Generating Plant for the Month of March is provided.

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

N

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

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Regional Administrator-Ill, NRC NRR Project Manager, NRC Sr Resident inspector, NRC State of Minnesota Attn: Kris Sanda J Silberg S

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PDR ADOCK 05000263 R

PDR

OPERATING DATA REPORT DOCKET NO.

50-263 L

DATE 4-1-98 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 OPERATING STATUS

] Notes

]

1. Unit Name -

Monticello

]

]

2. Reporting period:

March

]

]

3. Licensed Thermal Power LMWt) :

1670

]

]

4. Nameplate Rating (Gross MWe):

576.5

]

1

5. Design Electrical Rating (Net MWe):

552.9

]

]

6. Maximum Dependable Capacity (Gross MWe): 571.5

]

]

7. Maximum Dependable Cupacity (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 2160 234505

12. Number Of Hours Reactor Was Critical 462.0 1878.1 191922.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7

14. Hours Generator On-Line 459.8 1875.8 188810.1

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 623664 2856252 293711857

17. Gross Electrical Energy Generated (MWH) 213630 987176 99468551

18. Net Electrical Energy Generated (MWH) 203269 946701 95207758

19. Unit Service Factor 61.8%

86.8%

80.5%

20. Unit Availability Factor 61.8%

86.8%

80.5%

21. Unit Capacity Factor (Using MDC Net) 50.3%

80.6%

75.7%

22. Unit Capacity Factor (Using DER Net) 49.4%

79.3%

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)

_ Refueling Outage, 3/20/98-4/23/98, 34 days

25. If Shut Down At End Of Report Period, Estimated Date Of Startup:4/23/98

26. Units ln Test Status (Prior to Commercial Operation) : N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION i

)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-263 UNIT Monticello--

DATE 4-1-98 COMPLETED BY H. H.

Paustian i

TELEPHONE 612/295-5151 MONTH OF March DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 469.

17 436.

l 2

466.

18 433.

3 464.

19 382.

4 462.

20 11.

5 460.

21

-5.

6 458.

22

-5.

7 457.

23

-3.

8

454, 24

-3.

j 9

453.

25

-2, 10 449.

26

-3.

11 447.

27

-3.

12 445.

28

-3.

13 443.

29

-3.

14 441.

30

-3, 15 441.

31

-3.

16 436.

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.

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE i

DOCKET NO.

50-263 DATE 4-1-98 COMPLETED BY H. H.

Paustian TELEPHONE 612/295-5151 MONTH MAR 03-01-98 to Power coastdown continues.

03-20-98 03-20-98 to Plant shut down for 1998 Refueling Outage.

03-31-98 i

l l

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Note: Power operation defined as essentially 100% of rated power exce t for weekend load drops for specified survei lance testing.

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