Program costs are summarized in Tables 6-2 through 6-5. The results are given graphically in Figure 6-15. Table 6-2. Brayton SPS Program Costs Table 6-4. Gallium Arsenide Photovoltaic SPS Program Costs All costs, time phased over entire program with 7.5% discount rate, gave required power costs of 2.6^/kWh. Table 6-5. Thermionic SPS Program Costs Table 6-3. Silicon Photovoltaic SPS Program Costs
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