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<br />(- <br /> <br />. <br /> <br />i. Consider potential exchange arrangements with water <br />users located both upstream and downstream from Una, <br />and determine the effects of such potential exchanges on <br />the generated inflow data to Una Reservoir. Required <br />reservoir releases would not be affected by the <br />exchanges. <br /> <br />Task 9 - Operation Studies for Water Yield and Power <br />Generation <br /> <br />The Contractor shall: <br /> <br />a. Review the 30 years of monthly reservoir inflows and <br />monthly project storable water, both with and without <br />the use of the Placita Reservoir decree, for the three <br />conditional water rights scenarios developed in T~sk 8. <br /> <br />b. Review the water demand schedules and the probable <br />points of diversion for project water as developed in <br />Ta~k 13. <br /> <br />c. Adapt the Contractor's existing monthly reservoir and <br />power operations program to reflect the water rights <br />scenarios and the expected points of diversion of <br />project water. The desired monthly operational <br />variables will be specified for output in a monthly <br />tabular format. <br /> <br />d. Utilize the operations program for each water rights <br />scenario, both with and without the use of the Placita <br />Reservoir decree, to determine the maximum project firm <br />(no deficiency) annual water yield based upon the <br />critical low flow sequence of the 30-year inflow series <br />developed In Task 8. Maximum water yield at the end of <br />50 and 100 years of reservoir sedimentation shall also <br />be determined for each scenario, both with and without <br />the use of the Placita Reservoir decree, based upon the <br />revised reservoir capacity curves developed in Task 7. <br /> <br />e. With project operation based upon maximizing firm water <br />yield, the operations program will be utilized for each, <br />as appropriate, water rights scenario, both with and <br />without the use of the Placita Reservoir decree, to <br />determine the average annual generation for a series of <br />trial power plant installed capacities with plant <br />factors ranging from approximately 40-60%. The average <br />annual generation will be based upon the 30-year inflow <br />series developed in Task 8 and on the initial reservoir <br />capacity curve. This information will be input to Task <br />15 a5 part of the data to determine the selected power <br />installation. <br /> <br />-9- <br />