ML20236X996
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ENCLC RE TO EDO CONTROL 003120 9
NOV 19 BBE MEMORANDUM FOR: Carl J. Paperiello, Director, Division of Reactor safety Patricia L. Eng, Reactor Inspector, Operational Prt,grar.s FROM:-
VALUE IMPACT ASSESSMENT FOR ADDING A THIM DIESEL GENERATOR SUEJECT:
AT PRAIRIE ISLAND NUCLEAR GENERATING STATION
Reference:
1.
Draft NUREG 1109, " Regulatory Analysis for the Resolution of Unresolved Safety Issue A-44, Station Blackout" 2.
Draf t NUREG 1032, " Evaluation of Station Blackout Accidents at Nuclear Power Plants" Per your request, I have performed a rough estimate of the value to be gained by the addition of a third diesel generator at the Prairie Island Nuclear In addition, data have been acquired regarding the estimated Generating Plant.
cast for addition of a third diest1 generator. Discussions with Messrs. P. ' W.
Baranovsky, A. M. Rubin, A. R. 'Marchese of NRR and Mr. D. Ericson of Sandia Laboratories indicated that detailed value assessment snd cost analyses are not available; however, the following may be used to arrive at ball park figures for both the value m the cost of the addition of a third diesel generator.
A.
Cost of Ading a Third Diesel Generator Cost estimates perfomed by Sandia for diesel generator additions at Cooper and Quad Cities' stations have been performed and will be These costs, in 1985 published in NUREG CR 4448 in the near future.
The
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dollars are 14.31 and 11.3 rillion dollars, respectively.
estimates include the construction of a new, seismically qualified building to house the new diesel as well as labor, temporary construction, har.dware, and modification and engineering costs.
Generic costs in 1985 dollars based on the Energy Economic Data Base maintained by DOE for addition of a diesel generator to an existing
-operating plant are estimated to be approximately 16.3 sillion dollars.
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8712110015 871204 PDR FOIA WEISSO7-714 PDR I
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Carl J. Paperiello l
Valee cf Adding a Third Diesel Generator to Prairie Island l
B.
The value of adding a new diesel was calculated by comparing t i
relative cost of a station blackot:t with a givn d
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i to iha the relative ccst associated with a station blackout eve The equation t: sed for this third diesel generator installed.
assessment is:
l DxCxPxuxt=V l
j D = person rams per event where:
C = cost per person rent P = event probability per reactor year n = number of reactors per site t = years ree.aining until end of p13nt lifeV = is thl Assumptions made are:
l Diesel reliability is assu:aed to be the industry average of.l Prairie Island is assurned to be in the average of fsite power
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Station blackout duretion is assumed to be i hours c1uster l
Values used were:
i 800,000 person rems per event l
$1000 per person rem J
2 reactors per site 30 years remaining in plant lifetime l
Discussions with Mr. Baranovsky revealed that the difference l
d l
event probability per reactor year for the cu ith l
0 5 and l
an additional installed diesel generator varies be 1
3 x 10-5.
diesel between $480,000 and $1,440,0fsD.
l C.
Sumary Comparison of the relative value and cost a i
t d diesel l
N proximately an order of magnitude smaller than the the probabilities specific to Prairie Island are cur p nerator costs.
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developed.
i once it is received.
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3 Car) J. Paperte11e l
I v nt Any questions ngarding the calculational details, probabilliy th R (FTS
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. P. W. Baran conditioris etcetera, should be directed to 492-4433),
AW
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Patricia L. Eng
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l Reactor Inspector Operatidhal
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UNITED STATE 8 NUCLEAR REOULATORY COMMissl0N
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nasuiseoTom,p.c.seems EDO PRINCIPAL CORRESPONDENCE ' CONTROL I
DUE: 09/03/87 EDO CONTROL: 003120
, FROMt DOC DT 08/14/87 i
FINAL REPLYs REP. ED M D J. MARKEY l TO:
CHAIRMAN ZECH ww PRIORITY **
SECY Mt l FOR SIONATURE OFs,
ROUTINO:
DESCt STELLO
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O'S RE BACKFIT RULE TAYLOR REM DATE: 06/20/87 AS$10NED TO: AEOD(CRGR) CONTACT: JORDAN MURRAY ASS 10NED TO: MMS $ '
CONTACTS THOMPSON ASSIONED TO: NRR CONTACTS MURLEY ASS 10NED TOs R1 CONTACTS RUSSELL AS$10tF.D 70: RI!
CONTACT: ORACE j
AOSIDED TO: R111 CONTACTS DAVIS ASS 10ED To RIV CONTACT: RMARTIN AOS10tF.D To RV CONTACT: JMARTIN ASSIGNED TO: EDO CONTACT:
5NEWBERRY SPECI AL INSTRUCTIONS OR REMARKS:
OFFICES RESPOND IN FORMAT ATTACHED. % '
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PARA. A - ALL ADDRESSES
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PARA. B - AEOD (CROR)
PARA. C - S. NEWBERRY (OEDO)
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f INPUT TO SCOTT NEWBERRY DUE 9/3/07.
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