TABLE OF CONTENTS 1. INTRODUCTION---------------------------------------------------------------------------------------------------------------------------- 1 1.1. Study Objectives.................................................................................................................................................................. 1 1.2. Background...........................................................................................................................................................................2 1.3. Brief Synopsis of Phase I Work..........................................................................................................................................4 1.4. Study Approach................................................................................................................................................................... 5 1.4.1. Models......................................................................................................................................................................................... 6 1.4.2. TIMs.................................................................................... 7 1.4.3. White Papers...............................................................................................................................................................................& 2. MARKET ANALYSIS & EXTERNAL FACTORS______________________________________________________9 2.1. Overview................................................................................................................................................................................9 2.1.1. Economic Viability of Space Solar Power..............................................................................................................................9 2.1.2. Costs............................................................................................................................................................................................ 9 2.1.3. Revenues and Externalities....................................................................................................................................................10 2.1.4. Section Contents...................................................................................................................................................................... 10 2.2. Energy Forecast...........................................................................................................................................................................11 2.2.1. Assumptions And Sources...................................................................................................................................................... 14 2.3. Outlook for Competing Sources of Energy.........................................................................................................................14 2.3.1. Sources Of Electricity.............................................................................................................................................................17 2.3.2. Findings.....................................................................................................................................................................................17 2.4. Market Segment Definition................................................................................................ 17 2.4.1. Define Segments....................................................................................................................................................................... 18 2.4.2. Final Sites Chosen............................................................................................................................................... 18 2.5. Price Analysis............................................................................................................................................................................... 19 2.6. Financing........................................................................................................................................................................................22 2.6.1. To Get Financing.....................................................................................................................................................................22 2.6.2. Investment Factors.................................................................................................................................................................. 23 2.7. External Factors Summary......................................................................................................................................................23 2.7.1. Estimated Externalities.......................................................................................................................................................... 24 2.7.2. Estimates of.Air Pollution Costs and Regulatory Surcharges...........................................................................................25 2.7.3. Other Issues..............................................................................................................................................................................26 3. CANDIDATE SYSTEM CONCEPTS AND ARCHITECTURES_________________________________________27 3.1. Space Soiar Power Architectures - Overview....................................................................................................................27 3.2.1979 Reference Concept............................................................................................................................................................ 29 3.3. SunTower.......................................................................................................................................................................................31 3.4. LEO-MEO Relay........................................................................................................................................................................... 34 3.5. LEO-GEO Relay........................................................................................................................................................................... 39 3.6. SoiarDisc........................................................................................................................................................................................42 3.7. GEO Millimeter Wave................................................................................................................................................................45 3.8. Planetary Power Web................................................................................................................................................................49 4. SPACE SEGMENT MODEL DESCRIPTION______________________________________ 51 4.1. Model Organization................................................................................................................................................................... 51 4.2. Orbit Geometry........................................................................................................................................................................... 53 4.3. Subsystem Detail......................................................................................................................................................................... 63 4.3.1. Power Transmission................................................................................................................................................................ 63 4.3.2. Energy Storage........................................................................................................................................................................ 65 4.3.3. Solar Conversion.....................................................................................................................................................................65
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