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<br />Sect i on II <br />Power Resources <br /> <br />Sl ide II-I <br /> <br />Existing and Uprated Capacity of CRSP Power Plants <br /> <br />Three values of capacity are given for each of the six powerplants listed in <br />the left hand column: <br /> <br />1) Name plate capacity as was given by the manufacturer at the time <br />of installation. <br /> <br />2) Maximum operating capacity under existing conditions. <br /> <br />3) The far right hand column with uprates is the estimated output of <br />these plants under the uprating proposed by the Bureau of Reclama- <br />tion, At Morrow Point, Crystal, and Fontenelle no upratings are <br />ant ici pated. <br /> <br />Sl ide II-2 <br /> <br />Colorado River Flow at Lee Ferry, Arizona <br /> <br />= <br /> <br />The Upper Colorado River Commission haS prepared the historical and virgin <br />flow in the Colorado River at Lee Ferry, Arizona. It is of interest to us <br />.because of its widely fluctuating nature. The solid line is the progressive <br />ten year average virgin flow. Even a..,eraged over ten years, it is highly <br />variable. The period prior to 1930 is a much higher flow condition than has <br />occurred since that time. The years, ]977 and 1981, represent special con- <br />ditions in which the virgin flow was c~lculated to have been less than the <br />historical flow; therefore, an inverted pattern has been used to represent <br />these two unusual conditions. <br /> <br />It is this hydrologic record that provides the basis for projecting capa- <br />city and energy expected to be avail ab le after 1989. Sequence of years are <br />selected from this record, ranked by now, and assigned probabil ity values. <br />Flow records of any desired probability level can then be used to simulate <br />the production of ene~gy and capacity under a variety of future conditions. <br /> <br />Slide 11-3 <br /> <br />Total Upper Basin Depletions <br /> <br />The Bureau of Reclamation estimated the' future depletion in the Upper Basin. <br />Water depletion describe~. water supply reduction due to project development. <br />The highest part of the curve is bounded by the assumed upper limit of 5.8 <br /> <br />2 <br />