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( ( 14 Neither is the cogeneration potential of other large customers of r,'" '- Colorado-Ute. Still, the Colorado-Ute service area cogeneration C"': ~ .... potential is at least 180 Mw just from C-b, although this cogenera- '"', tion could not be expected to enter service prior to 1991, when ~ C-b reaches its full operating level (see Table 3 and the associated discussion of delays at C-b). 3. Diversity exchanges. Colorado-Ute's committed resources include 270 Mw from Public Service company of colorado (PSC) (~Table 1) in 1982-91, and 440 Mw in 1992-94. This capacity is not available in the summer. However, once Colorado-Ute reaches the point where its winter peak exceeds its summer peak by more than 270 Mw, the resources which enable it to meet its winter peak will allow it to meet its summer peak by an even larger margin, even without the PSC capacity in the summer. Such a situation in fact will occur in the late 1980s, even with the adjusted demand forecast shown in Table 1. Because Colorado-Ute is bordered by summer peaking utilities (PSC, PNM, UP&L) , it will be in a position to trade summer peaking capacity to its neighbors in exchange for winter peaking power. Indeed, Colorado-Ute's August 1981 Loan Support Study reflects just such an intention, showing a 100 Mw diversity exchange planned for 1988 with a neighboring utility.li! 4. Federal purchases. Colorado-Ute's committed resources include 80 Mw from WAPA--30 Mw from Mt. Elbert 1-2, 36 Mw purchased by its member co-op IREA, and 14 Mw from the Collbran project.2S/ Colorado-ute receives no power directly from the Colorado River