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<br />
<br />OPERATION AND MAINTENANCE
<br />
<br />21
<br />
<br />Firm energy rates and secondary energJ' rates at Hoover power
<br />plant are determined in order to produce revenue sufficient for all
<br />costs of operation, maintenance, replacements, and amortization,
<br />and for payments to Arizona and Nevada, and to the Colorado
<br />River Development Fund, Variations in costs are reflected in the
<br />rates as shown in the following table:
<br />
<br />Ii
<br />
<br />QPERATII\'(;
<br />YEAR
<br />
<br />RATE IN MILI.S
<br />Pt:H KWHH
<br />FIR;\l SU':OND,4.RY
<br />
<br />1937,1938 '
<br />1938,1939 ,
<br />1939,1940 ,
<br />1940,1941 '
<br />1941,1942
<br />1942,1943 ,
<br />1943,1944 ,
<br />1944,194'\
<br />1945,1946
<br />1W6-1W7.
<br />1947-194R .
<br />1948,1949 '
<br />1949,19,\0
<br />1950,1951 ,
<br />1951,1952
<br />19,\2,1953 .. .., .. ........
<br />1953,1954 ,
<br />
<br />1.I63
<br />1.I63
<br />.... .... 1.I63
<br />.. 1.163
<br />, 1.163
<br />......... .......... 1.172
<br />1.I90
<br />1.254
<br />, 1.244
<br />, ,.... 1.220
<br />1.277
<br />1.343
<br />........ 1.298
<br />1.314
<br />1.313
<br />.......................... ...... ........ 1.328
<br />.... ............" ........ 1.336
<br />
<br />0,340
<br />0,340
<br />0,340
<br />[),340
<br />0,340
<br />0,346
<br />0,357
<br />0,398
<br />0.392
<br />0.376
<br />U,413
<br />0,455
<br />0,426
<br />0,436
<br />0,436
<br />0.445
<br />0,4.\0
<br />
<br />In the operation of Hoover power plant, there has been an inter,
<br />change of energy with Parker and Davis power plants to the extent
<br />that during the operating year ending May 31, 1953 the net amount
<br />of Parker and Davis energy substituted for Hoover energy was
<br />369,143,620 kilowatthours. The United States, in endeavoring to
<br />obtain immediate benefits from energy saved at Hoover by substi,
<br />tution of Parker and Davis energy, has sold to the State of Nevada
<br />during June and July 1952, a total of 7,767,200 kwhr of energy at
<br />1.5 mills per kwhI'. Then, in order to curtail at Hoover power
<br />plant the building up of interchange energy from Parker and Davis,
<br />the United States sold surplus Parker, Davis energy to the Edison
<br />Company in the amount of 222,485,439 kwhr, and at the rate of
<br />2/3 of a mill per kwhr, This energy was received by the District
<br />at Gene for transmission to Edison at Hayfield during off,peak
<br />hours from 10 p,m, to 6 a.m, The District's charge for transmission
<br />of energy from Gene to Camino was at the rate of 0.1 of a mill
<br />per kwhr and the charge for transmission of energy from Camino
<br />to Hayfield was at the rate for transmitting energy over the joint
<br />transmission line under the District,Edison transmission line con,
<br />tract, For the current year this rate was 0.253 of a mill per kwhr,
<br />
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