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<br /> <br />In view of the large proportion of hydro capacity in <br /> <br /> <br />~ ~~: l;s~c, it is of interest to examine the energy requirements for <br /> <br />the region.: Hydroelectric capacity differs in an essential <br />respect fro~ thermal generating capacity in that hydro may <br /> <br />be energy-limited. Therefore, for a system whose capacity <br /> <br />has a large element of hydro it is important to examine the <br /> <br />energy prodUction aspects. Table 3 shows, for the U.S. <br /> <br />portion of WSCC, the projected distribution of energy <br />production between the hydro and non-hydro sources, <br /> <br />as reported by WSCC on April 1, 1976. <br /> <br />1 <br /> <br />TABLE 3 - PROJECTED ENERGY SOURCES AND REQUIREMENTS <br />For Summer 1977 <br />U. S. Portion of WSCC <br /> <br />2/ <br /> <br />Adverse Hydro <br /> <br />Energy Requirements, GWh <br />Firm Load:Re~ponsibility <br />Interruptible Load <br />Pumping Storage Load <br />Total Net Requirements <br /> <br />Resources Atter Station Use, GWh <br />Hydro <br />Non-Hydro' <br />Total <br />Scheduled 'Maintenance <br />Net Resources <br /> <br />Total <br /> <br />142,506 <br />268 <br />440 <br />143,214 <br /> <br />48,727 <br />132,640 <br />181,367 <br />6,167 <br />175,200 <br /> <br />Margin over'Total Net Requirements <br />GWh <br />Percent <br /> <br />31,986 <br />22.3 <br /> <br />1/ <br /> <br />WSCC report to Federal Power Commission under Order 383-3, <br />April 1; 1976 <br /> <br />2/ <br /> <br />Period Jun~ thru September; individual months are close <br />to the average. <br /> <br />11 <br />