ML19323B459

Monthly Operating Repts for Apr 1980

ML19323B459
Person / Time
Site:	Prairie Island
Issue date:	05/01/1980
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML19323B458	List: ML19323B457 ML19323B459
References
NUDOCS 8005120401
Download: ML19323B459 (8)

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m The unit was in Load Follow operation this month.

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DOCKET No. 50-282 UNIT Prairie Island k. 1 _

DATE 800501 _ _ _ , _

COMPLETED BY A. A. Ilunstad_ _ __

TELEPHONE 612-388-4767 10NTil April 1980

)AY AVE!! ACE LOAD FR1e-Net DAY AVERAGE I.0AD fnie-Net

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472 1 479 19 471

. 475 20 471 r, 479 21 471 r, 476 22 475 7 477 23 471 g 455 24 470 9 483 25 469 go 482 26 468 t1 480 27 418

,2 485 28 470 tg 488 29 470 14 479 30 468

5 477 31 16 479 i

Average loads above 503 Inse-Net are due to cooler condenser circulating water

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DATE 800501 COMPLETED BY A. A. Hunstad l OPERATING STATUS TELEPHONE 612-388-4767 t

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1. Unit Name: Prairie Island No. 1

2. Reporting Period: April 1980 Notes l _

3. Licensed Thermal Power (MWt): 1650

4. *:a m e p l a t. R: sting (Gross Mue): 593_ _

5. Design Electrical Rating (!!ct !Ne): 530

6. M r<imum Dependable Capacity (Gross MWe):_ 534 N 7. tiaximum Dependable Capacity (Net 1:We): 503 g 8. !f Changes occur in Capacity Rat ing,a (Itens Number 3 Through 7) Since Last Report:

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l , 9. Power Level To Wh!ch Restricted, if Any (Net MWe):

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Reasons for Restrictions, If Any:

l This Month Yr-To-Date Cumulative i

, 11. Ilours In Reporting Period 719 2903 55871

12. Number Of Hours Reactor Was Critical 719.0 2271.9 43980.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 5531.9

14. I!ours Generator On Line 719.0 2766.8 42890.3

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l 15. itn i t 1:extvc Shutd.n.n Hours 0.0 0.0 0.0 1

16. Gross Thermal Energy Generated (MWH) 1175683 4504122 66583116 l 17. Gross Eltetrical Energy Geaerated (MWil) 362190 1410680 21564350

18. Net Elcetrical Energy Generated O!Wil) 340094 1323602 20162854

19. Unit Service Factor 100.0 95.3 76.8

20. Unit Availability Factor 100.0 95.3 76.8 l _

21. Unit Capacity Factor (Using MDC Net) 94.0 90.6 71.7 f 22. Unit Capacity Factor (Using DER Net) 89.2 86.0 68.1

23. Unit Forced Outage Rate 0.0 0.0 12.9

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

Refueling, August 4, 1980, 8 weeks

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

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m reogry April 1980 We m The unit was in Load Follow operation this month. At 2255 on April 11 a

$ shutdown was taken to make repairs to the turbine oil system and to perform

n. other minor maintenance. The unit was returned to service at 2255 on April 13.

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e DAll.Y l' NIT PO'.'i:R Ol'TPUT D0cKET No. 50 306 ^^

UNIT Prairie Island W.~ T DATE 800501 COMPLETED IW A. A. Ilunstad TELEP110NE 612-383-4767

-iONTil__ , Apr il 1980 MYi AVE!: AGE LOAD ?!We-Net DAY AVERAGE LOAD FMe-Net t 504 17 499 501 18 _

498 _

1 502 19 496

c. 498 20 490

> 506 21 496 r,

469 22 498

/ 445 23 496 8 _

508 21 497 9 510 25 495 10 511 26 493 il 458 27 495 i2 -17 28 496

?3 -17 29 495 la 436 30 461 15 505 31 16 506 Average loads above 500 PMc-Net are due to cooler condenser circulating water.

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} COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767 1

l. Unit Name: Prairie Island No. 2 Notes

2. Reporting Period:_ Appl 1980 l 3. 1.frensed Thermal Power (MWt): 1650

) '4 mneplate P.ating (Cross FNe): 593 i I'i~ inn i t ec t r ica l Ra t.inb (i.et. t r.N i : 430 ~

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{ ri . It exier.um liependable Capacity (Gr..ss MWe): 531 0 7. "n tmum Dependable Capacity (Net INe): 500 i

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'4 . Ti Change'. th: cur in capacit v R.a .29 (Items Number 3 Through 7) Since Last Report; n,

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[ 9. Power Level 10 Which Restricted. If Any (Net MWe): ._ _ _ _ _ _ _ _ _

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10. Reasons for Rentrictions, If Any

N i This flonth Yr-To-Date Cumulative

11. Ilours In Reporting Period 719 2903 46989

12. Number of Ilours Reactor Was Critical 676.6 1731.9 40860.9

13. Reactor Reserve Shutdown llours 42.4 42.4 1448.4

14. Itouro Generator On Line 671.0 1684.5 40085.5 I

15. Ln.t Resr_ ". Sh" Ir.u Hour, 0.0 0.0 0.0 ,

16. Gross Thtcmal Energy Generated (flWil) 1089161 2639898 62312401

17. Gross Elect rical Energy Generated (f.%"l) 350520 860920 19915050

18. Net Eleet ri e al Em gy Gener . edc (11'.-l11) 329176 802396 18641028

19. Unit Service Factor 93.3 58.0 85.3

20. Unit Availability Factor 93.T 58.0 85.3

21. Unit Capacity Factor (Using MDC Net) 91.6 55.3 79.3 l 22. Unit Capacity Factor (Using DER Net) 86.4 52.2 74.9 i 23. Unit Forced Outage Rate 0.0 0.6 4.7 '

24 Shutdowns Scheduled Over Next 12 Months (Type, Date an1 Duration of Each):

Refueling, February 1981, 6 weeks l

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

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. 800411 S i 48.0 B i 1 l N/A N/A l N/A  ! Shutdown to make repairs to l 3* ' '

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