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<br />n. Yield or Conservation Storage Optimization <br /> <br />(1) Up to 9 reservoirs (none in tandem with each other) can be <br />utilized in the routine in a single run to determine different types of <br />results (storage or yield). <br /> <br />(2) Up to 15 iterations are allowed in trying to draw the reser- <br />voir to the target reservoir level (usually top of inactive pool) while <br />determining either the storage required for a given yield or the firm <br />yield from a given amount of storage. <br /> <br />(3) Critical period can be determined by the program from period <br />of record data on IN cards and the operation of a single reservoir can be <br />restricted to the critical period to reduce computer costs. <br /> <br />(4) Critical period can be selected by user by inputing the <br />starting and ending periods of the flow data. <br /> <br />(5) Tables of Minimum Flow volumes for various reservoir draw- <br />down durations, along with starting and ending periods can be requested <br />by the user (see J4.7). <br /> <br />(6) Initial estimates of dependable capacity can be made by the <br />program based on minimum flow volumes for selected length of drawdown. <br /> <br />(7) The program can determine the amount of seasonally varied <br />conservation storage to satisfy all specified yields on the project <br />including hydropower. <br /> <br />(8) The maximum dependable monthly energy requirements and <br />dependable capacity of a project that can be provided from a specified <br />power storage can be determined automatically while still meeting all <br />other project yield requirements. <br /> <br />(9) The maximum dependable desired flow or required flow or <br />diversion that can be provided from a project from a specified conser- <br />vation storage can be determined automatically while still meeting all <br />the other project yield requirements. <br /> <br />(10) All of the yields may be optimized at one time using fixed <br />ratios between the demands as specified on input cards. <br /> <br />10 <br />