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<br /> <br />. <br /> <br />CHAPTER II <br /> <br />COMPREHENSIVE PLAN <br /> <br />Results of the operation indicate that the active capacity of the reser- <br />voir would have been completely full or virtually full at the end of the <br />filling season in all but 8 years of the 40-year study period. Advance <br />water releases for energy generation in anticipation of reservoir spills <br />would have been made in 25 of the 40 years and remaining reservoir spills <br />of significance in excess of the powerplant generating capacity would have <br />occurred in 5 of the 40 years. The reservoir would have been drawn down to <br />the inactive storage level in only 4 years. Inasmuch as the rated head of <br />the powerplant would be at the inactive storage level of the reservoir, the <br />dependable generating capability of the plant would be maintained at the <br />rated installed generating capacity. Project irrigation water shortages <br />of significance would.'have occurred in 3 years of the 40-year study period <br />with the shortages being 45, 13, and 24 percent in the dry years of 1934, <br />1954, and 1955, respectively. In the studies nominal shortages were allowed <br />for irrigation and a full water supply provided for power in order to indi- <br />cate the maximum firm power potential, In actual operation irrigation would <br />be given priority over power for use of water in accordance with the Colo- <br />rado River Storage Project Act and power losses in periods of short supply <br />would be replaced with power from other sources. <br /> <br />. <br /> <br />The energy generation shown in the reservoir operation and energy pro- <br />duction study was estimated from the available power water releases during <br />each reservoir filling and drawdown season and with use of the approximated <br />weighted average power head for each of the seasons ~nd an operating effi- <br />ciency of 80 percento The estimated average energy production from a 30,000- <br />kilowatt-capacity plant for the 40-year period of study totaled approxi- <br />mately 96,000,000 kilowatt-hours annually. Of the total production, about <br />66,000,000 kilowatt-hours would be the normal annual energy production and <br />30,000,000 kilowatt-hours would be the additional average annual seasonal <br />energy production from advance power water releases made in anticipation of <br />spills. <br /> <br />Artesia Reservoir operation <br /> <br />Operations of the Artesia Reservoir would be coordinated with opera- <br />tions of Juniper Reservoir and the Deadman Bench and Artesia Canals, In <br />normal irrigation seasons the average monthly irrigation requirements would <br />be met almost fully by releases to Deadman Bench Canal from Juniper Reser- <br />voir and Artesia Reservoir would remain practically full with~nly nominal <br />fluctuations in the middle of the season. During periods in the middle of <br />the irrigation season when the weather is hotter and drier than average, <br />the peak irrigation requirements of the lands served by the Artesia Canal <br />and by the Deadman Bench Canal beyond the turnout from the canal to Artesia <br />Reservoir would exceed the capacity of Deadman Bench Canal at the turnout <br />to Artesia Reservoir, <br /> <br />. <br /> <br />42 <br />