Table 5 Net Change in Annual Energy Expenditures Due to the SPS (1978 $ x 109) for SPS could be significant compared to SPS investment costs, particularly in a low deployment rate (3.3 GW/yr) scenario. CONCLUSIONS This comparative assessment analyzed each technology issue by issue (side-by-side analysis), and then evaluated the technologies, given different post-2000 economic climates and the economic trajectories that would lead to those climates (alternative futures analysis). Conclusions were formed separately for these two types of analyses and are summarized in the following tables. Tables 6 to 11 summarize the comparison among the seven technologies issue-by-issue. Comparisons are described in terms of key issues, uncertainty about the understanding of those issues and a concluding comparative statement that cuts across all technologies for that issue area. Table 12 describes the six mixes of technologies that were analyzed in terms of meeting the energy demand for two different scenarios (i.e., UH and Cl). Tables 13 and 14 summarize comparative conclusions about mixes of technologies from an energy supply/demand perspective. In these tables, the comparative analyses are described briefly, issue by issue, for each of the energy supply alternatives.
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