Figure 26 illustrates two methods of submerging the load module 

 from the surface. An untethered descent requires an outward force through 

 the arc of deployment, as shown in Figure 26a. Figure 26b illustrates a 

 precisely positioned, self submerged (by winching) load module emplace- 

 ment. 



SELECTED POWER SYSTEMS 



The evaluations, analyses, and optimization processes described 

 heretofore provide the basis for selecting the most cost effective concepts 

 of the following underwater power systems; 



1. 30-, 100-, and 300-kw in-situ power plants for load modules 

 deployed at depths of 600, 2,000, 6,000, 10,000, 15,000, and 

 20,000 feet; 1,000- and 3,000-kw in-situ power plants for load 

 modules deployed at depths of 600 and 2,000 feet. 



2. 30-, 100-, 300-, 1,000-, and 3,000-kw surface- tendered power 

 plants for load modules deployed at depths of 600, 2,000, 6,000, 

 1 0,000, 1 5,000, and 20,000 feet. 



3. 30-, 100-, 300-, and 2,000-kw shore-based power plants for load 

 modules deployed at distances of 10, 50, 100, and 500 miles from 

 shore; 3,000-kw shore-based power plants for load modules deployed 

 at distances of 1 0, 50, and 1 00 miles from shore. 



The preliminary designs for six of these power systems are given in the 

 Appendix. 



The cost estimates presented for the recommended systems are for 

 engineering, construction, and testing. Cost of development programs or 

 advanced engineering for the power cable connectors, system deployment, 

 property acquisition for shore-based plants, transportation, and site prepa- 

 ration are not included. Likewise, the cost of the common base for the 

 in-situ plant is not included. 



In-Situ Power Systems 



A reactor power plant was chosen for all the selected in-situ power 

 systems. This plant will provide an in-situ power system with a reasonably 

 long life. Cost data for the in-situ power systems are presented in Table 16. 

 Operational costs are difficult to define without more complete data on 

 operating schedules and power profiles, both of which influence refueling 



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