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1、GeneratorInterconnectionFacilitiesStudyReportBuncombeCounty,NC120/136MW,12/01/2009Queue#118April25,2007ProgressEnergyCarolinas,Inc.TransmissionOperations&PlanningGeneratorInterconnectionFacilitiesStudyReport:BuncombeCounty,NC–120/136MW,Queue#118PURPOS
2、EThepurposeofthisGeneratorInterconnectionFacilityStudy(GIFS)istoidentifysolutionsthatresolvepowerflow,stability,andshortcircuitimpactsidentifiedintheGeneratorInterconnectionImpactStudy(GIIS)performedforthisrequest.Inadditionthisreportprovidesthenecess
3、aryfacilitiesrequiredtointerconnectthenewgeneratingplanttotheProgressEnergyCarolina,Inc.(PEC)TransmissionSystem.Thisreportalsoprovidesrefinedestimatesofthecostandin-serviceschedulesfortheseitems.TheGeneratorInterconnectionSystemImpactStudyReportisdate
4、dJanuary25,2007.Table1:RequestPECGeneratorIn-ServiceInterconnectionMWCountyPECFacilityDateQueueNo.BuncombeCaneRiver-CraggyQueue#118120/13612/01/09County,NC230kVLineASSUMPTIONSThefollowingimpactstudyresultsarefromthePECinternalpower-flowmodelsthatrefle
5、ctspecificconditionsofthePECsystematpointsintimeconsistentwiththegeneratorinterconnectionrequestbeingevaluated.Thecasesincludethemostrecentinformationforload,generationadditions,transmissionadditions,interchange,andotherpertinentdatanecessaryforanalys
6、is.Futureyearsmayincludetransmission,generation,andinterchangemodificationsthatarenotbudgetedforandforwhichnofirmcommitmentshavebeenmade.Further,PECretainstherighttomakemodificationstopower-flowcasesasneededifadditionalinformationisavailableorifspecif
7、icscenariosnecessitatechanges.ForthesystemssurroundingPEC,dataisbasedontheNERCMMWGmodel.Thesuitabilityofthemodelforusebyothersisthesoleresponsibilityoftheuser.Higherqueuedgeneratorinterconnectionrequestswereconsideredinthisanalysis.Theresultsofthisana
8、lysisarebasedonInterconnectionCustomer’squeuerequestincludinggenerationequipmentdataprovided.Ifthefacilitiestechnicaldataorinterconnectionpointstothetransmissionsystemchanges,theresultsofthisanalysismayneedtobereevaluated.Additionalassumptions