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<br />r--- <br /> <br /> 20 <br /> 11 <br /> ?7. <br /> 23 <br /> 2~ <br /> 25 <br />I <br />I <br /> <br />. <br /> <br />. <br /> <br />smoothed 0ver.nq(' <jcnpri1t ion pn(1 r1;:lta from the smoothed curve <br /> <br />2 were used in the power repayment study. <br /> <br />3 <br /> <br />The estimAte~ saleable capacity was also taken from the 15 <br /> <br />~ simulations of hydrologic sequences. We used the capacity <br /> <br />'i value that is eXCeN'e(1 75 percent of the time, which is called <br /> <br />r; ]OWf.'r 'lllarti le. for the Sllmmf'r seClson, this jogged curve <br /> <br />7 represer" <br /> <br />the lower quartile capacity and the bottom dotted <br /> <br />r curve represents a smool'hed lower ('nvelope of th(> low0r <br /> <br />9 qllArt:ilc capncity, ('xclll~ing the Centro] Utnh Project capacity. <br /> <br />10 l\ddj"9 Centr<ll lltnh Project. cClpvclty in excess of its <br /> <br />11 project needs to the bottom dotted curve gives the top dotted <br /> <br />] 2 curve which is till' f;ummpr sal ('ahl e cApacl ty used in the power <br /> <br />13 rcpvyment study. Tn A like manner, the winter saleable <br /> <br />l~ ci1p,~city was determined. Both summer "nd \vint(>r seasons are <br /> <br />15 based on the net he"d available at each reservoir, calculatAd <br /> <br />II, monthly. <br /> <br />17 <br /> <br />TII(~ pl,lnt. (:i1p<lci ti l:S nre comhi ned into Cl system t.otal i1nd <br /> <br />In reduced by 10 percent of system lond and that amounts to ahout <br /> <br />]9 l~n MW that is res(>rvecl for operating. <br /> <br />Lower quartile capacity was used in the 1977 power <br /> <br />repayment study to project capacity sales. <br /> <br />In compi\ring those <br /> <br />projections with the amounts of capAcity subsequently billed, <br /> <br />it a['[wars that lower qu..rti Ie capacity is a reasonahle basis <br /> <br />for that projection, During 197R and 1979, historical capacity <br /> <br />billerl was slightly less thHn projected, Hnd during the next 2 <br /> <br />;>(1 I <br />......J <br /> <br />Jntermount.nin rOllrt Illt,olt:ers <br />7(,3-13% <br />