291 



scenario 4 adjusted the value of DSI forced outage reserves from 

 1,288 megawatts to 800 megawatts and adjusts the interest rate to 

 reflect current market conditions. Scenario 4a assumes a 

 9 percent interest rate. Scenario 4b assumes a 6.5 percent 

 interest rate. 



Scenario 5 adjusted the value of DSI forced outage reserves from 

 1,288 megawatts to 600 megawatts and adjusts the interest rate to 

 reflect current market conditions. Scenario 5a assumes a 

 9 percent interest rate. Scenario 5b assumes a 6.5 percent 

 interest rate. 



Note that Scenarios 2 and 4 both assumed an 800-megawatt forced 

 outage reserve, the high end of the range identified by the 

 Bonneville witnesses in the rate case. Scenarios 3 and 5 both 

 assume a 600-megawatt forced outage reserve, based on the lower 

 figure in the 1992 Loads and Resources Study. 



TABLE 2 



Adjusting the Value of DSI Forced Outage Reserves 

 Range of Likely Dollar Impacts 



Quantity of interest Rate Impact in 

 Reserves (MW) FY '94- '95* 



9.0% $15,014,721 



6.5 21,827,039 



14.0 21,928,658 



14.0 30,915,994 



9.0 31,254,069 



6.5 35,485,550 



9.0 37,910,053 



6.5 41,083,663 



* Average annual impact in these years. 



23 



