[20150504]IN10271_特斯拉的家用电池——电力存储的突破?.pdf
CRS.govSignIn|SignUpCRS InsightsTeslas Home BatteryAnElectricity Storage Breakthrough?RichardJ.Campbell,SpecialistinEnergyPolicy(rcampbellcrs.loc.gov,77905)PaulW.Parfomak,SpecialistinEnergyandInfrastructurePolicy(pparfomakcrs.loc.gov,70030)May4,2015(IN10271)CosteffectiveelectricitystoragehaslongbeenakindofHolyGrailfortheelectricpowersector.Suchstoragetechnologycouldhavemultiplebenefitsforelectricityconsumers.Itcanserveasatemporarysourceofbackuppowertomaintainonsiteelectricserviceintheeventofautilitypowerblackout.Itcanbeusedtoimprovetheavailabilityof(firmup)electricitygeneratedfromintermittentrenewablesourcessuchassolarandwind.Itcanalsobeusedtoshiftenduserelectricityloadsfromcostlypeakhourstolowercostoffpeakhours,whichcanlevelregionalgenerationprofilesandlowercustomerelectricbills.Inpursuitofthesebenefits,manyelectricitystoragesolutionshavebeendeveloped,andsomehavebecomecommerciallyavailableprimarilyatutilityscalebuthighcostsandperformanceissues(alongwithkeyregulatorybarriers)havelimitedtheirdeployment.(SeeCRSReportR42455,EnergyStorageforPowerGridsandElectricTransportation:ATechnologyAssessment.)Forexample,banksofleadacidbatterieshavebeenusedtofirmupgenerationfromsomerenewablepoweri
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