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<br />. <br /> <br />PRELIMINARY. <br />SUBJECT TO RE.V~ION <br /> <br />o <br /> <br />factor of 1.32. The total initial construction costs for the alternative <br /> <br /> <br />plans are shown in Table 4. It should be noted that these costs represent <br /> <br /> <br />estimates that are acceptable for a reconnaissance-level study only. <br /> <br />~ <br />CJl <br />r", <br />~ B. Annu~l Costs. <br /> <br />1. Annual costs for the alternative plans were computed by adding the <br /> <br /> <br />amortized investment cost. operation and maintenance costs and replacement <br /> <br />costs. <br /> <br />2. The amortization factor applied to the investment cost is based on <br /> <br /> <br />an interest rate of 7-5/8 percent and an investment life of 100 years. <br /> <br /> <br />Operation and maintenance costs were taken from the revised curve in the <br /> <br /> <br />Hydropower Cost Estimating Manual. (USACE MAY. 1979) which is based on a <br /> <br /> <br />remotely operated site. Annual costs to cover interim replacement of <br /> <br /> <br />miscellaneous equipment and facilities were calculated at 1/10 percent of the <br /> <br /> <br />total construction cost. <br /> <br />3. Table 5 lists the summary of the annual costs for the alternative <br /> <br />plans. <br /> <br />VIII. Project Benefits. <br /> <br />A. .POWPT Vilru"ps." <br /> <br />1. The Federal Energy Regulatory Commission provided generalized <br /> <br /> <br />alternative power values for the market area appropriate for power generation <br /> <br />at John Martin Dam. <br /> <br />Their letter is contained <br /> <br />values are based on a project-an-line <br />consideration of the appropriate real <br /> <br />date of <br /> <br />in Appendix A. <br />1990 and were <br /> <br />These at-market <br />developed with <br /> <br />fuel cost escalation factors. <br />- <br /> <br />2. The Western Area Power Administration was also contacted and <br /> <br /> <br />.requested to provide information regarding current charges for surplus energy. <br /> <br /> <br />Western has recently been selling surplus energy to custOmers for about 29 <br /> <br /> <br />mills p.er kilowatt hour during off-peak periods and about 34 mills per <br /> <br />13 <br />