Months After Contract Award 

 6 8 



Phase I 



Concept developnnent, 30-kw 



to 100-kw system 



Phase II 



Concept development, 100-kw 



to 300- kw system 



for adaptation to either surface power 

 plant or in-situ power plant 



for adaptation to in-situ 

 reactor power plant 



Phase III 



Adaptation and modification to 



proposed power sources available 



Time (months) 



Cost ($1,000) 



4 



60 



6 



85 



3 



35 



4 6 8 10 



Months After Contract Award 



Figure 29. Milestone chart for general utility power system development program. 



Development of the secondary power distribution module, including 

 pressure containment hull and penetrations for cable connectors, would be 

 assigned the highest priority of all the elements associated with the develop- 

 ment of the general utility power system. 



In-Situ 3,000-kw Power Plant 



It became apparent during the course of the study that reactor power 

 systems with a 1,000-kw to 3,000-kw electrical power output could not be 

 readily adapted to depths of 6,000 to 20,000 feet. There are numerous 

 problems associated with the physical size and weight of large reactor plants, 

 such as hull design and materials, buoyancy, heat transfer techniques, place- 



92 



