WSP09752 - Laserfiche WebLink

Home Browse Search

. . II-14 develop capacity estimates but only capacity available 75% of the time was used t not an ave rage. The Central Utah Project (CUP) capacity in excess of project needs is added to the capaci ty values determined by drawing a smoothed curve through the low values of the lower quartile capacity projections. Avail- able capacity increases through FY 1990 due to additional generation and uprat- ings, then declines after FY 1990 because of upstream water depletions. The issue here is whether or not Western projects enough available sal- able capacity (also an issue in the prior rate proceeding). In this rate pro- ceeding, Western attempts to justify its use of the lower quartile projections by comparing the projected salable capacity from the FY 1977 PRS to actual capa- city sales. That comparison is reproduced below: kW kW FY Projected (FY 1977 PRS) Actual 1978 1,237,000 1,227,854 1979 1,285,000 1,243,682 1980 1,305,000 1,342,895 1981 1,303,000 1,356,800 Total 5,130,000 5,171,231 Percent Projected Sales Exceeded Actual Sales 0.7% 3.3 -2.8 -4.0 -0.8% This comparison, however, is misleading and invalid. What should be compared are projected salable capacity and actual salable capacity (not actual sales). Such a comparison, shown below, shows the system's available capacity indepen- dent of and apart from demands by potential purchasers. A projection of sal- able capacity independent of actual sales would indicate the amount of any ex- cess capacity and would allow for the potential development of other markets. This comparison shows that the projections of salable capacity should have been highe r.