ML20002C899

Monthly Operating Repts for Dec 1980

ML20002C899
Person / Time
Site:	Prairie Island
Issue date:	01/02/1981
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML20002C896	List: ML20002C895 ML20002C899
References
NUDOCS 8101120297
Download: ML20002C899 (8)

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50- 282 UNIT Prairie Island No. 1 DATE 810102 COMPLETED BY A.A. Hunntad TELEPHONE 612-388- 1121 MONTH December, 1980

- The unit was in Lead Follow operation this month; no shutdowns.

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l DAILY UNIT POWER OUTPUT DOCKET NO. 50-282 UNIT Prairie Island No. 1 DATE 810102 COMPLETED BY A.A. Hunstad TELEPHONE 612-388- 1121 MONTH December, 1980 DAY AVERAGE LOAD MWe-Net DAY AVERAGE LO.l) MWe-Net s

s 1 462 17 516 E

. 2 521 18 517

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! 3 522 19 516 G

$ @ 4 522 20 518 5 518 21 520 6 520 22 516 7 520 23 517 8 522 24 518 9 520 25 516 10 519 26 494 11 523 27 514 12 521 28 515 13 521 29 516 14 494 30 513 15 521 31 516 16 493 4

i Average loads above 503 MWe-Net are due to cooler condenser circulating water.

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OPERATING DATA REPORT DOCKET NO 50- 282 DATE 810102 COUPLETED BY A.A. Hunstad 4

OPERATING STATUS TELEPHONE 612-388-1121

1. Unit Name: Prairie Island No. 1 1

2. Reporting Period: December, 1980 Notes

3. Licensed Thermal Power (MWt): 1650 4 Nameplate Rating (Gross MWe): 593

5. Design Electrical Rating (Net MWe): 530

6. Maximum Dependable Capacity (Gross MWe): 534 g 7. Maximum Dependable Capacity (Net MWe): 503 g 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:

5 Give Reason:

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[ 9. Power Level To Which Restricted, If Any (Net MWe):

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10. Reasons for Restrictions, If Any:

This Month Yr-To-Date Cumulative

11. Hours In Reporting Period 744 8784 61752

12. Number Of Hours Reactor Was Critical 744.0 6958.7 48167.1

13. Reactor Reserve Shutdown Hours 0.0 6.2 5538.1

14. Hours Generator On Line 744.0 6867.1 46990.6

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1212882 10641687 72720681

17. Gross Electrical Energy Generated (MWH) 405960 3327840 23481510

18. Net Electrical Energy Generated (MWH) 382554 3106355 21945607

19. Unit Service Factor 100.0. 78.2 76.1 20 .' Unit Availability Factor 100.0 78.2 76.1

21. Unit Capacity Factor (Using MDC Net) 102.2 70.3 70.7

22. Unit Capacity Factor (Using DER Net) 97.0 66.7 67.1

23. Unit Forced Outage Rate 0.0 2.6 12.2

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

_ Refueling, September 1981, 6 weeks

25. Il Shut Down at End Of Report Period, Estimated Date of Startup:

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 810102 COMPLETED BY A.A. Hunstad JELEPHONE 612-388- 1121 MONTH December, 1980

'I l s The unit was in Load Follow operation this month. On 12-21, load was reduced j g to 44% for several hours for condenser cleaning and the monthly turbine valves y test.

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DAILY UNIT POWER OUTPUT DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 810102 COMPLETED BY A.A. Hunstad TELEPHONE 612-388- 1121 MONTH December, 1980 DAY AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net g' 1 513 17 501 m

. 2 511 18 506 5

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{ 4 509 20 503 5 500 21 309 6 508 22 507 7 510 23 508 8 514 24 511 9 514 25 507 10 511 26 509 11 516 27 506 12 510 28 506 13 511 29 508 14 512 30 505 15 510 31 509 16 504 Average loads above 500 !!We-Net are due to cooler condenser circulating water.

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OPERATING DATA REPORT DOCKET NO 50- 306 DATE 810102 COMPLETED BY A.A. Hunstad OPERATING STATUS TELEPHONE 612-388-1121

1. Unit Name: Prairie Island No. 2 1 2. Reporting Period: December, 1980 Notes 1 3. Licensed Thermal Power (MWt): 1650 I 4 Nameplate Rating (Gross MWe): 593

5. Design Electrical Rating (Net MWe): 530

6. Maximum Dependable Capacity (Gross MWe): 531 g 7. Maximum Dependable Capacity (Net Kle): 500 g 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:

I S Give Reason:

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9. ' Power Level To Which Restricted, If Any (Net MWe):

" 10. Reasons for Restrictions, If Any:

This Month Yr-To-Date Cumulative

11. Hours In Reporting Period 744 8784 52870 744.0 46381.8

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12. Number Of Hours Reactor Was Critical 7253.0

13. Reactor Reserve Shutdown Hours 0.0 102.0 1508.0

14. Hours Generator On Line 744.0 7169.9 45570.9

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1207125 11426487 71098990 j 17. Gross Electrical Energy Generated (MWH) 396770 3704810 __

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18. Net Electrical Energy Generated (MWH) 373448 3469171 21307903

19. Unit Service Factor 100.0 81.6 86.2

20. Unit Availability Factor 100.0 81.6 86.2

21. Unit Capacity Factor (Using MDC Net) 100.4~ 79.0 80.6

22. Unit Capacity Factor (Using DER Net) 94.7 74.5 76.0

23. Unit Forced Outage Rate 0.0 0.6 4.2

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

k- Refueling, February 1981, 6 weeks

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

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Y UNIT GHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50- 306 REPORT MONTil December 1980 UNIT NAME Prairic Island No. 2 DATE 810102 COMPLETED BY A.A. Ilunstad TELEP110NE 612-388-1121 e4 c n  % oc% Licensee a4 u Cause & Corrective Date $. 37 $ 38 Event 8 .$ $n Action to N N$ $ 3 I$ $ Report #

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- 801221 S 0.0 B N/A N/A N/A N/A Load was reduced to 44% for

@ several hours for condenser j5 cleaning and the monthly turbine valves test.

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F: Forced Reason Method: Exhibit G-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event E-Operator Training & License Examination Report (LER) File F-Administrative (NUREC-0161)

G-Operational Error (Explain)

H-Other (Explain 5 Exhibit 1 - Same Source

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