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<br />Change in Operations At Other CRSP Powerplants -- In the <br />initial estimate, it was assumed that foregone generation at Glen <br />Canyon would be supplemented with purchases, only. However, <br />in actuality, reduced generation at Glen Canyon was <br />accommodated somewhat by increased generation at other CRSP <br />powerplants (Flaming Gorge & Curecanti Unit). <br /> <br />Reduced Loads -- The pattern of load assumed in the initial <br />projections was overestimated, and therefore the need for <br />purchase power was assumed greater than what actually <br />occurred. <br /> <br />Though the actual expenses incurred were less than originally <br />estimated, the $64,000 additional expense resulted in a period <br />representing roughly 1 percent of the total hours in the year and <br />during a period of projected dry hydrologic conditions within the <br />Upper Colorado River Basin. <br /> <br />Though interchange was used to reduce purchase power expenses, <br />the availability of interchange can not be assumed over an extended <br />period during future months, particularly in future peak load <br />months. <br /> <br />Our conclusion is that any future special releases at Glen Canyon <br />(and any other CRSP facility) which substantially deviate from <br />normal operations should be prudently evaluated and the potential <br />costs of such temporary changes considered. <br /> <br />2 <br />