TECHNICAL REPORT STANDARD TITLE PAGE 1. REPORT NO. NASA CR-3349 2. GOVERNMENT ACCESSION NO. 3. RECIPIENT’S CATALOG NO. 4. title and subtitle Satellite Power System Salvage and Disposal Alternatives 5. REPORT DATE November 1980 6. PERFORMING ORGANIZATION CODE 7. AUTHOR(S) 8. PERFORMING ORGANIZATION REPORT ft 80-148-1 9. PERFORMING ORGANIZATION NAME AND ADDRESS ECON, Incorporated 900 State Road Princeton, New Jersey 08540 10. WORK UNIT NO. M-316 1 1. CONTRACT OR GRANT NO. NAS8-33783 13. TYPE OF REPORT & PERIOD COVERED Contractor Report 14. SPONSORING AGENCY CODE 12. SPONSORING AGENCY NAME AND ADDRESS National Aeronautics and Space Administration Washington, DC 20546 15. SUPPLEMENTARY NOTES NASA Marshall Technical Monitor: Georg Van Tiesenhausen Final Report 16. ABSTRACT The satellite portion of the Satellite Power System (SPS) has a currently estimated lifetime of 30 years. The capital cost of the satellite less its net salvage value (gross salvage value less removal cost) must be amortized over that lifetime. Estimation of this value is the object of this study. A wide range of salvage options exist for the SPS satellite, ranging from use in and beyond geosynchronous orbit to use in low earth orbit to return and use on earth. The satellite might be used intact to provide power for various purposes, it might be cannibalized or it might be melted down to supply materials for space- or ground-based products. In any case, the use of SPS beyond its nominal lifetime provides value that can be deducted from the SPS capital investment cost. It is shown that the present value of the salvage value of the SPS satellites, referenced to the system initial operation date, is likely to be on the order of five to ten percent of its on-orbit capital cost. (Given a 30-year satellite lifetime and a four percent discount rate, the "theoretical maximum" salvage value is 30. 8 percent of the initial capital cost.) The SPS demonstration satellite is available some 30 years earlier than the first full-scale SPS satellite and has a likely salvage value on the order of 80 percent of its on-orbit capital cost. In the event that it becomes desirable to dispose of either the demonstration of full-scale SPS satellite, a number of disposal options appear to exist for which intact disposal costs are less than one percent of capital costs. 17. KEY WORDS Satellite Power System Satellite Lifetime Salvage Options Salvage Value 18. DISTRIBUTION STATEMENT Unclassified - Unlimited Subject Category 44 19. SECURITY CLASSIF. (of thia report} Unclassified 20. SECURITY CLASSI F. (of this page) Unclassified 21. NO. OF PAGES 90 22. PRICE A0 5 For sale by National Technical Information Service, Springfield, Virginia 22161
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