F. W. Casey Future Programs Office W. S. Beckham Urban Systems Project Office X. PROGRAM DEVELOPMENT PLAN A. Program Phasing The SPS program plan has been divided into four phases as illustrated in figure X-l. The four phases include an initial phase of system definition and exploratory technology followed by a technology advancement phase. These two phases would orovide the information required to make a decision in the 1987 time period to proceed with full-scale development of the system. Assuming a positive decision at this time, an initial system might be in operation in the 1995 time period. The subsequent and final phase would be one of commercialization involving multiple SPS's such as identified in the various scenarios described in section III. B. System Definition and Exploratory Technology Phase This immediate phase would include improved definition and assessment of satellite power system concepts; transportation, construction, and operational support systems; design, development, test and evaluation (DDT&E), and recurring costs and environmental impact. A further description of activities in these four areas is presented in figure X-2. More definitive comparisions of the relative merits of space solar power with other systems such as coal, nuclear, and solar terrestrial are also required in the present phase. Detailed areas in which these comparisons should be attained are presented in figure X-3. This phase will also involve the detailed definition and cost of the subsequent technological advancement phase. Key activities to support this definition will include solar power system studies, space station analyses as related to subscale system evaluation, technology studies, and program analyses. A number of significant test activities are proposed to be conducted in this initial phase. A partial listing of these tests is included in figure X-4. C. Technology Advancement Phase The technology advancement phase (FY80-87) consists of three elements: ground-based developments, space experiments, and a subscale system evaluation in space. The results of these activities must also be integrated into a continuing program and system analysis and evaluation. A more detailed breakdown of activities that will be required in each of the three elements is presented in figure X-5.
RkJQdWJsaXNoZXIy MTU5NjU0Mg==