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Flexibility: To "turn on" the curtailment "resource," utilities must engage in 

 lengthy marketing efforts, notifications, public service requests, and other 

 actions Voluntary curtailment in Oregon during the early 1970's only gained an 

 estimated energy savings of between 3 percent to 5 percent after 3 to 6 months 

 of effort Mandatory curtailment, usually imposed only after voluntary efforts 

 have not produced enough savings, takes additional time to implement 



If a resource is needed only for certain peak times, days, or months, then 

 purchases can be made only for those times Curtailment does not have this 

 flexibility Once the curtailment "resource" has been turned on, it cannot be 

 immediately turned off If the crisis requiring curtailment has ended, recovery 

 by a utility system of its original load takes a period of time 



Section 1 1 of the Power Sales Contract is designed to protect the operational 

 integrity of BPA's electrical system in the short term through curtailment, and 

 has no connection with the Regional Act's long-term conservation goals. 



