E3_EDT_Phase2_Methodology_and_Sensitivities_2011-04-22

Voluntary Participation SensitivityCases (by BA or Generator)Current benefits assume participation by all BAs outsideof California and Alberta• BPA and WAPA may have statutory restrictions to their participation• Phase 2 will run sensitivity case with BPA, WAPA out to estimatechange in the total benefits• Case will maintain hurdle rates & local flexibility reserve fulfillmentfor these BAs and zones embedded inside themCurrent benefits also assume all resources within eachBAA participate in voluntary market• As time permits, may attempt to test the sensitivity to thisassumption by assuming only a fraction of resources participate• E.g., assume only 50% of generators (randomly selected) submitinc/dec bids• This case partially could test take or pay27