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The Impact of Customer Battery Storage on the Smart Grids and how Power Tariffs can increase Battery Storages’ penetration percentage
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The batterystoragewillplayanimportantroleinfuturesmartdistributiongrids.Atthesame time,thereshouldbeavailabilityofvaryingtariffstructures,fromwhichcustomerscan chooseaccordingtotheirrequirement.Thisresearchthesisfocusesonthestudyofimpact ofbatterystorageinthedistributiongridandhowpowertariffscanhelpincreasethebattery storage’spenetrationpercentage.The researchisdonetoassesstheimpactofbothhomebatteriesandEVsonthedistributiongrid, andhowmuchcantheyincreaseordecreasethedemandintheregion.Alsoapartofthesis isdedicatedtocreatenewpowertariffstructuresforStockholmregionofEllevio,andthenelectricity billsoftheconsumersarecomparedwithexistingtariffsandnewsuggestedtariffs.ForthethesisaresidentialareaofStockholmRoyalSeaport/NorraDjurgårdenstadenischosen.Ellevio iselectricitydistributionresponsibleforthearea.HomebatteriesofPowervaultU.KandTeslaPowerwall2arechosenandforEV,TeslaModelSwith60KWhbatterysizeisselected.One ofthemostinterestingfindingsisthatagroupof480customerswithhomebatterycanbring thepowerdemandduringpeakhoursdownbyupto11%,butontheotherhanda50%penetration ofEVintheareacanincreasedemandatcertainhoursbymorethan250%.Oneofother findingwasthatifcustomersshifttheirchargingpatternofEVbycoupleofhourstheycan increasethedemandinthegrid,emphasizingontheroleofcustomersinfuturedistributionsystems.SuggestedPowertariffsshowanincreaseinmonetaryamountsavedbycustomerifthey optforhomebatteries.Themostamountsavedbythecustomerisincaseofthestrictestpower tariffsuggested,i.e.Powertariffwithcriticaltimecomponentandtimeofusecomponent.This thesiswillbecomeafoundationforfuturestudyofimpactofbatteriesonalargerregionand impactofbatteriesownedbyDSOinthegrid.Italsoopensnewpathwaystostudyvaryingretail contractsforthecustomersandhowcombinationofvaryingretailcontractandpowertariffs canresultinbetterdemandflexibility.

Abstract [sv]

Batterilager kommerattspelaenviktigrolliframtidasmartaeldistributionsnät.Sam-tidigt bördetfinnasmöjlighettillvarierandeeltariffstrukturerförelkonsumenter.Dettaexamensarbete fokuserarpåstudieraveffektenavbatterilagringieldistributionsnätetochhureltarifferkanbidratillattökagenomslagetavbatterilager.Studierharävengjortsföratt bedömaeffektenpåeldistributionsnätetavhembatterierochelfordonmedstudieravhurefterfrågan påelinverkas.Specifiktföreslåsnyaeltarifferförettområdedärelräkningarförelkunder jämförsmedexisterandeochföreslagnanyaeltariffer.Arbetet harutförtsisamarbetemellanEllevio,denlokalaeldistributöreniStockholm,ochKTH. FallstudierharutförtsförbostadsområdetNorraDjurgårdsstaden.Vidarehartvåolikatyper avhembatteriervaltsförstudienvilkaärPowervaultrespektiveTeslaPowerwall2.Förstudie avelfordonharTeslaModelSvaltsmed60kWhbatteristorlek.Resultat frånfallstudiernavisarattengruppom480hushållskundermedhembatteri,kanminska totalaefterfråganpåelvidtopplastmedupptill11%.Resultatenvisarattom50%avpersonbilsparkenisammaområdevarelfordonskulleefterfråganavelvidtopplastökamed merän250%.Studiernavisarhurolikaladdningsmönsterförelbilarinverkarpåtotalabelastningen ielnätet.Därmedgesexempelpådencentralarollenelkonsumentenfåridetframtida eldistributionsnätet.Föreslagnaenergitarrifferförelvisarpåmöjlighetentillekonomiskvinst förelkonsumentervilkaanvänderhembatterier.Arbetet liggertillgrundförframtidastudieravinverkanavbatterieristörreområdenochbatteriersomägsaveldistributören.Ettannatområdeförframtidastudierärhurelkon-sumenternas efterfrågeflexibilitetkanökaserhållasgenomvarierandelösningarförelavtalochenergitariffer.

Place, publisher, year, edition, pages
2017. , p. 83
Series
TRITA-EE, ISSN 1653-5146 ; 2017:136
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-217829OAI: oai:DiVA.org:kth-217829DiVA, id: diva2:1157947
External cooperation
Ellevio
Educational program
Master of Science - Electric Power Engineering
Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-11-17Bibliographically approved

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