58 



estimate of future depletion in year 1997. From these studies BPA estimated a ratio 

 of 60 MW/kcfs of critical period firm power loss to irrigation depletion. 



If we use the same power to depletion ratio, the 14 million acre-feet of depletion in 

 the BPA service area would generate an additional 10 million MW-hrs of annual 

 energy. Approximately 60 percent of the generation would occur at federal 

 projects. 



17 



