flinders island isolated power system (ips) connect 2016 h merkel acep
TRANSCRIPT
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Casestudy
Cordova,Alaska
EnergyStorageofRenewablePowerinIslandedMicrogrids
Heike Merkel, Data and Project Manager, Alaska Center for Energy and Power Dec 3th, 2016
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LocationofMap
Cordova
HumpbackCreekHydroPlant
PowerCreekHydroPlant
CraterLake
OrcaPowerPlant
CECSubstation
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OrcaPowerPlant:5Units:2x1125kW1x2450kW1x2500kW1x3800kWTOTAL:10.8MWProduced10GWh(2011)
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PowerCreekHydroPlant
2x3MWturbinesTotal:6MW
Produced15.7GWh(2011)
Potential~21GWhSpilled~5.3GWh
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HumpbackCreekHydroPlant3Units:2x500kWFrancis1x250kWTurgoTotal:1.25MWProduced1.6GWh(2011)Nospillage,plantrunsatfullcapacity
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PowerCreekGenerationandLoads
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AnimationbyMarcMueller-Stoffels(ACEP)
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ObjectiveandApproach
• EnergyStorageanalysisandoptimizationmodelingto:– Recoverspilledpower– Reducediesel
consumption– ReducedieselO&M– Supportgridstability
• Deliverables– Technicalspecificationfor
RFPbyCEC– Projectblueprintfor
otherAKutilities
CordovaEnergyMixin2011• 18GWhHydropower• 10GWhDiesel• 781,000GalDiesel@$3.55/gal
• $2.77MFuelbill• Costofgeneration:
• Hydro:~$0.06/kWh• Diesel:~$0.35/kWh
• Estimate:~5.3GWhspilledhydro
Cansomeofthespilledhydroberecoveredtodisplacedieselfuel?
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ESSPotentialin2011
Diminishingreturnsofreductionofdieselfuel.LowpowerESS(<1MW)oflimitedvalue.
Rangeincludedinthesimulation
TorecoverALLspilledhydropowerwould
requirea10MW/2.5GWh
battery!
Red
uctio
n in
die
sel c
onsu
mpt
ion
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DieselchargingESS:YES DieselchargingESS:NO
ReductioninDieselConsumption
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ReductioninDieselRunTime
DieselchargingESS:YES DieselchargingESS:NO
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DieselCapacityFactor
DieselchargingESS:YES DieselchargingESS:NO
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DieselSwitching
DieselchargingESS:YES DieselchargingESS:NO
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ESSCycles/CycleAmplitude
DieselchargingESS:YES DieselchargingESS:NO
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ESSasSRCSupport
DieselchargingESS:YES DieselchargingESS:NO
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PreliminaryResultsandNextSteps
• Replacementof1GWhofdieselwithhydroresultsinapotentialsavingsindieselfuelof~$300k
• EstimatedieselO&Mcost• Mergeourdatawithdynamic
systemmodelbySandiaNationalLabtodeterminetheoptimalESSlocation
• DeveloptechnicalspecificationfortheESS
• CEC:IssueRFPwithoptiontoown/operateorbidirectionalPPA.
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Thankyou!
ACEPProjectteam:Dr.MarcMueller-Stoffels(PI),Dr.HendrikSchaede,JeremyVandermeer,LuisMiranda,HeikeMerkel
http://acep.uaf.edu