variable, for a plant that operates between the year t’ and the year t, is as follows: Figure 4.23 shows the distribution for levelized fuel cost and level- ized capital charge for a 2% average growth with 4% fluctuation per year and a real discount rate of 4%. A normal distribution is plotted in dotted lines to show the slight skew of this distribution, The skewed distribution has a long tail on the high side, which is important because the high side of the coal distribution will be important in the comparison to SPS. SPS Price Relationships. In the case of the SPS, the dominant uncertainty factor is technical uncertainty, since there is no economic experience. The SPS is made up of a number of subsystems that were broken up into six categories: energy conversion, space construction and support, power transmission, transportation, rectenna, and other. A typical probability distribution for the cost that one might expect for each of these subsystems is shown
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