433 



have been reported In the range of $4000 per kilowatt 

 of nodules capacity. Southern California Edison and 

 Texas Instrument suggested selling prices of roof-top 

 home units at $1500 to $3500, Hhen the 'Solar Spheral' 

 nodules reach production in 1994. Ten years ago the 

 DOE Program computerized cost-model at the Jet 

 Propulsion Laboratories, projected $200/kM factory cost 

 by 1991 in large quantity production. The on-going 

 Department of Energy program 'PV(1aT-A Government and 

 Industry Partnership for U.S. Competitiveness", 

 currently funds several programs in industry to reduce 

 costs and increase quantities in photovoltaic module 

 production. When true mass-production is applied in 

 lines producing a few hundred megawatts of PV modules 

 annually, factory costs well under $500/kW appear 

 likely. 



The ubiquitous 'J-foot fluorescent lamp is a 

 'comparable' electric product, useful in a value- 

 analysis factory-cost estimating of large quantities 

 SVUG module production. A one-meter tube can hold 

 about 0.005 kH capacity of various thin-film or 

 amorphous materials as in the SOLAREX OR KYOCERA 

 modules used to construct the Solar Voltaic Unit 

 Generator Fuel-Rate Characteristic in a previous 

 Figure. The material content, complexity of processing 

 and needed production quantities in a photovoltaic 

 'power tube' or in a fluorescent lamp are comparable. 

 Some fluorescent lamps are produced on one of several 



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