WSP02536

• File Number: 8220.200.05.R
• Description: Hoover Dam/Lake Mead/Boulder Canyon Project
• Basin: Colorado Mainstem
• Date: 10/31/1938
• Author: Roberts A. B.
• Title: Report of Competitive Value of Falling Water for Primary Energy at Boulder Dam in Competition with Steam Power at the Load Center
• Water Supply Pro - Doc Type: Report/Study

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~quiv~lent of one full-size unit.

I hD.ve used t:1::' actual costs of the two 0xioting

275,000 volt transmission circuits from Bould::.r Dnm to

Los AnC;01cs, includin?; t;,e switching station and rec::.i v-

ine; stn,tion ff'.cilitL.s as obtained from the cost rccords

of t..",,; 3ure,"u of Power end LL',:lt in estiml'.ting the invest-

mcmt cost of tl'[nsmission fJcilititJs, from which I have de-

v::.loped the fif~rcs of ~23,750,OOO for t~c existing two

circuits, and ~ll,9G5,000 per circuit for seven circuits.

In checking tho 0stimat::.s used by Joth Mr. Sands

[md the :ngintJ0rs of th;:; 3ur0".U of Power and Light for

steam plant invostment, I have used data from my files and

rC!1ched 11. conclusion that the unit price of ,1>87.50 per

kilowc,.tt of instalhd cc.pacity, including step-up station

P.t stet-.m plant, b r-.c 1<. trJ,nsmission to nearest receiving

st~,tion,--:nd step-down f;c,cilitics .~.t the receiving stntion,

is reasonably correct for the assumed oonditions.

Fixed Charges
In addition to m; review of tho value of f~ling

w".tcr "s devc:lopod by tht;' BUre[lU, I deri v0d the value based

upon fixed cThn.rges of 13.5% on ste~m plant nnd 10% on hydro

gencr.--:tion ~nd trnnsmisGion system investments, including
cpcrn,tion .--:nd m.J.intcn,,,-nc0 cxpens.:Js, ','Thich would be the ap-

proximrttc ch.--:rZos if priv,,-tuly o'imed. Corresponding

A. B. Roberts

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