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<br />Power Repayment Study <br /> <br /> <br />I <br />" <br />Powerhouse interior at Flaming Gorge Dam <br /> <br />Results of the power repayment study for <br />fiscal year 1980 are depicted in the graph <br />on page 00. Estimated annual power <br />revenues are shown together with their <br />application. Total revenues for the period <br />shown exceed $6.2 billion. After repay- <br />ment of about $1.4 billion for the power <br />investment and replacements and $472 <br />million for interest, power revenues should <br />be sufficient to repay about 85 million in <br />irrigation costs and provide around $1.9 <br />billion tor assistance in repayment of <br />participating projects. <br /> <br />Following are explanatory notes on the <br />terms used on the graph. Copies of the <br />power repayment study in a highly de- <br />tailed form can be obtained upon request. <br /> <br />Annual Operating Expenses <br /> <br />Annual costs of power and salinity control <br />operation and maintenance. <br /> <br />Energy Purchases <br /> <br />Annual costs of purchases for firming <br />energy for fuel conservation and for <br />energy to replace the deficiency in Hoover <br />Dam Powerplant generation caused by <br />storage project operations. In past years, <br />energy purchases for fuel conservation <br />are shown as energy purchase expense <br /> <br />34 <br /> <br /> <br />and the revenues from energy sales for <br />fuel conservation are included in the gross <br />revenues. In future years, it was assumed <br />that there would be no energy purchases <br />for fuel conservation. <br /> <br />Replacements <br /> <br />Payments made on power replacements <br />with the highest interest-bearing compo- <br />nent (whether replacements or other <br />power investments) being paid first. <br /> <br />Power Interest Payments <br /> <br />Annual interest on the unpaid power <br />investment. <br /> <br />Power Principal Payments <br /> <br />Payments made on the power investment <br />with the highest interest-bearing com. <br />ponent (whether power investment or <br />replacement) being paid first. <br /> <br />Storage Unit Irrigation Principal Payments <br /> <br />Power revenues which are applied toward <br />payment of the irrigation allocation of the <br />storage units. Their revenues repay the <br />major portion (about $85 million or 81 per- <br />cent) of each costs with the remainder <br />(about $19 million, or 19 percent) being <br /> <br /> <br />repaid from M&I water revenues. <br /> <br />Power Revenues Available for Irrigation <br />Assistance to Participating Projects <br /> <br />Power revenues available after the above <br />costs have been paid, the amount of <br />which will be about $1,881 million through <br />year 2055, A lesser amount (about $14 <br />million or 1 percent of the total available) <br />will also be available from M&I water <br />revenues. <br /> <br />Total Annual Power Revenues <br /> <br />Annual revenues obtained from energy <br />and capacity sales, wheeling for others, <br />rental of substation facilities to others, <br />reimbursement by the Lower Basin for <br />energy purchased by the GRSP to replace <br />the deficiency in Hoover Dam Powerplant <br />generation. and miscellaneous revenues. <br />In the study, the firm power rate of $1 ,34 <br />per kilowatt-month and 3,4 mills per <br />kilowatt-hour was increased to a rate of <br />$1.66 per kilowatt-month and 4,0 mills per <br />kilowatt-hour at the beginning of January <br />1981, The power rate increased to 5,3 <br />mills per kilowatt-hour and $2.25 per <br />kilowatt-month beginning October 1, 1982. <br /> <br />1 <br /> <br />, <br /> <br />I <br />