9. 0 RESOURCE ANALYSIS AND FUEL CONSUMPTION 9. 1 GROUND OPERATIONS 9.1. 1 INDUSTRIAL CAPACITIES An analysis was performed for a program of thirty 10 GW SPS's to be built over a 30 year period. A photovoltaic silicon cell concept with a mass of 116 x 106 kg was chosen for the industrial capacities study. The study also included the transportation and propellant requirements for both the HLLV and LEO to GEO transfer. To obtain an idea of the potential impact on, and commitment for, material resources that would be needed for a program of this magnitude, the average annual requirement was compared with current United States production in Table 9-1. TABLE 9-1. MATERIAL REQUIREMENT AND PRODUCTION The conclusions of this analysis are as follows: 1. The requirements for oxygen, hydrogen, and argon indicate a need for expanded processing capabilities. 2. The requirements for aluminum and copper indicate little impact on the industry.
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