recovery of DDT&E, is 32.5 mills, predicated on the standard assumption of 445 GWe of installed capacity by the year 2020. Using the larger $44 billion DDT&E cost raises the delivered energy cost to 41.8 mills. Using the smaller DDT&E estimate, excluding the space related program costs, yields a total energy cost of 37.7 mills/kWh. Exhibit 33 also shows the relative components of capital costs and DDT&E recovery for each of the scenarios. These capital costs range from a low of 5.9 mills for the LMFBR (1974 estimates) with learning curve benefits to a high of 40 mills for the solar terrestrial. Capital charges for the SSPS at 18.3 mills/kWh represent almost exactly twice the estimated capital charges for the LMFBR 1975 estimate. The mechanics by which the increments in energy costs required to recover program costs were estimated are shown in Exhibit 34. This exhibit presents for each of the six scenarios, the total program cost, the present value of the program cost in 1975 dollars at 10%, and the present value of a factor represented by 1 mill of additional charges over the "standardized" production span of each of the various systems. The TRW methodology discussed in subsection 10.a differs in several important respects from the one used here: • Instead of a capital recovery factor based on 10 percent interest over 30 years (10.61 percent of capital cost/year) plus a charge of 5 percent of capital cost per year for taxes, insurance, profit, etc., TRW uses a composite rate of 13.82 percent to include all of the above items. • TRW applies a uniform 0.70 load factor, while this analysis uses the various load factors indicated for each system. • TRW assumes a uniform +15 percent uncertainty in capital costs (no parallel assumption). • TRW uses specific fuel cost scenarios with specific uncertainty ranges which, although referred to, are currently unavailable.
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