• refinement of concept data and analyses through two Technical Interchange Meetings - one focused on the technical and technology aspects of SSP and one focused on the economic and market aspects. • evaluation of the different SSP concept architectures with respect to their technical performance, costs, and generated revenues, as well as an examination of the sensitivity of the results to selected system parameters and variations in the scenario elements. • preparation of “white papers” on the selected topics of WPT technology, terrestrial solar power, public perception of technological risk, beam safety and spectrum allocation. 1.4.1. Models The largest effort of Phase II was devoted to the development of the analytical tools/models needed to perform the concept evaluations. One of these tools, the Integrated Architecture Assessment Model (IAAM), simulates the performance and markets associated with the deployment and operation of SSP architectures and generates costs and revenues to assess and compare their economic feasibility. The model, described in detail in Section 5, was developed as a Microsoft Excel workbook consisting of several modules/worksheets that analytically capture the major elements of an SSP architecture as well as the economic scenario. These elements include: • SSP Space Segment • SSP Ground Segment • SSP Manufacturing • In-Space Transportation • In-Space Infrastructure • ETO Transportation • ETO Infrastructure • Commercial Power Utilities Systems • Markets • Competition • Financial Environment In addition to the above, an overarching element of the model is used for module integration and control, and an output module delivers results of the desiresd analysis. Perhaps the most important of the IAAM elements, with regard to its overall impact, is the space segment, which covers the constellation of solar power satellites, their masses, costs, deployment, and operations. Because of the complexity associated with the numerous options and trades available to the space segment, a separate analytical model was developed for this portion of the SSP architecture. Called the Space Segment Model (SSM), it incorporates the most significant aspects of the space segment’s design, including number of satellites, power delivery capability, subsystem and component technologies, ground site locations, and orbital configuration, and produces an evaluation of relevant system size, mass and cost. The SSM can be run independently to evaluate techmeal and cost issues related to specific design choices, and it can also interface easily with the IAAM model to investigate the economic and financial implications of such choices. A complete description of the SSM can be found in Section 4.
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