E3_EDT_Phase2_Methodology_and_Sensitivities_2011-04-22

More documents

Recommendations

Info

5. Price-ResponsiveHydro Modeling (HTC)Phase 1: Gridview model was unable to simulateprice-responsive hydro• The flexible portion of hydro output shape was exogenouslydetermined using Partial Load Following (PLF)• Scaled hourly based on net load in generator’s zonePhase 2: ABB team is finalizing HydrothermalCo-optimization (HTC) module• At HTC reshapes a portion of hydro output based onhourly prices in model• Will allow hydro units to dispatch when marginalmarket prices are higher• Used at approx. 40 plants in NW <strong>and</strong> California(as indentified by TEPPC)Expected Effect:• HTC-dispatched Hydro generation will to displace morecostly gas resources in hours of high system need• Lower total system production costs & greater efficiency<strong>22</strong>
6. Reduced Unit CommitmentOptimization in EIM5-min real-time EIM may not permit fully-optimized dayahead unit commitment decisionsPhase 2: will constrain unit commitment using twoconsecutive GridView runs (for all but Gas CTs)First Run Second Run EffectUse hurdle ratesin establishinghourly unitcommitmentdecisions for eachdayKeep commitmentfixed from the firstrun (for all resourcesexcept gas CTs)• Hourly commitment decisionfrom first run introduced asbinary input to second run• Prevents GridView fromaltering commitment decisionin EIM caseAssumes market participants do not use any informationfrom EIM in making their unit commitment decisions• Right answer is probably somewhere in the middle• Time permitting, could run sensitivity with modified assumptions23
Page 5: About E3E3’s expertise has placed
Page 8 and 9: Phase 2 Overview & MotivationOveral
Page 10 and 11: Phase 2 CasesThe analysis will cons
Page 12 and 13: Key Assumptions to Phase 2 CasesUpd
Page 14 and 15: 1. Proposed 24 Zone Modelfor Phase
Page 16 and 17: 2. Modified conventional reservereq
Page 18 and 19: 3. Flexibility Reserve Requirement
Page 20 and 21: Summary of Phase 2 Methodologyby Re
Page 24 and 25: Anticipated Impact of RevisedPhase
Page 26 and 27: Section 3: Phase 2 StudyProposed Se
Page 28 and 29: Additional Sensitivity AnalysisAs t
Page 30 and 31: Sensitive Case PrioritizationOrder
Page 32: E3 Contact InformationEnergy and En

E3_EDT_Phase2_Methodology_and_Sensitivities_2011-04-22

Create successful ePaper yourself

Delete template?

Save as template?