【Ember】从规模到系统：指引中国电池储能的下一阶段发展

Fromscaletosystem:navigatingthenextphaseofChina’sbatterystorageAmajorshiftisnowunfoldingacrossChina’sbatteryenergystoragesector,astheindustrytransitionsfrompolicy-drivencapacityexpansiontoanincreasinglymarket-testedsystemintegration.Publisheddate:16July2026Leadauthor:BiqingYangContentsContents1About2Keyhighlights2Executivesummary3Chapter1:Fromthescale71.1China’sBESSoutgrowsallothercountriescombined71.2China’sbatteryadditionsoutpaceitsrecord-breakingsolargrowth91.3Co-locationrequirementsprovidedthefirstpushforChina’sBESSgrowth101.4TheshifttorevenuestackinginChina’sBESSmarket13Chapter2:Tothesystem202.1ShiftingapplicationstructureinChina’sBESSfleet212.2Utilisationisrising,butco-locatedBESSstilllagsstandalonesystems222.3Shiftingtomarket-ledexpansionandunlockingthesystemvalueofSupportingmaterials29Methodology29Acknowledgement31EMB三R1AboutChinaaccountedformorethanhalfoftheglobalbatteryenergystoragesystem(BESS)capacitybytheendof2025.Asmandatestoco-locatestoragewithrenewableenergyphaseout,thesectorisenteringamoremarket-drivenphase.ThisreportexamineshowChina’sBESSfleetisdeployed,quantifiesutilisation,andassessestheflexibilitythatmarketreformscouldunlockfromexistingassets.Newmarketmechanismsareemergingtoreflectthemultiplevaluesthatbatteriesprovidetothepowersystem,makingrevenuestackingcentraltothenextstageofChina’sBESSdevelopment.Keyhighlights100cycles23TWhBythefirstquarterof2026,China’stotalinstalledlithium-ionbatteryenergystoragecapacityreachedalmost150GW.The2025utilisationshortfallofChina’srenewableco-locatedbatterystoragecomparedtostandalonesystems,highlightingthelimitsofmandate-drivenscale-up.Theextraamountofrenewablegenerationthatcanbeshiftedbyutility-scalebatteryenergystorage,solelybyoptimisingtheutilisationofbatteries.EMB三R2ExecutivesummaryBeyondgigawatts:China’sBESSshiftingtowardsamarket-drivenfutureIn2025,China’stotalbatteryenergystoragesystems(BESS)capacitysurpassedthatoftherestoftheworldcombined.Beneaththisheadlinegrowth,thecountry’sbatterysectorisenteringanewphase,shiftingfromrapiddeploymenttowardseffectivemarketintegrationandmaximisingsystemvalue.Whennationalwindcurtailmentsurgedpast17%in2016,Chineseprovinces,amongothermeasures,requirednewrenewableprojectstoco-locateenergystorage.Thispolicyeffectivelyhelpedkeepcurtailmentincheckanddrovethecountry’sBESSinstallationboom.However,batteriescanprovidefarmoresystemvaluethanthecurrentmarketcontextallowsco-locatedprojectstodeliver.Astheenergysystem’sultimatemultitool,batteriesshiftrenewablegenerationacrosstimeandlocation,providecrucialancillaryservicesforgridstability,andofferemergencysupport.Becausetheiroperationandfinancesweretiedbehindthemeteroftheirparentprojects,co-locatedBESShasseenlowerutilisationthanstandalonesystems.Incontrast,standaloneassetscanoperateasindependentmarketentitiesandresponddirectlytosystem-wideconditions.EMB三R3Twomajorrecentpolicieshavereinforcedthistransition:theendofmandatorystorageco-locationin2025andtheexpansionofcapacityremunerationtoincludeBESSin2026.Thismarksadeliberateshiftfromadministrativemandatestomarketsignalsasthesector'semergingdriver.Asaresult,recentgrowthinstandaloneBESShassignificantlyoutpacedthatofco-locatedprojects.Meanwhile,utility-scaleBESSutilisationisbeginningtocatchupwithcapacityexpansion.Tosustaindevelopmentmovingforward,thesectorrequiresdiverserevenuestreamsthatreflectitstruesystemvalue,enhancedrevenuestackingtoensurecommercialviability,strongermarketsignalstoguideplanning,andaclearregulatoryframeworktailoredtothebi-directionalnatureofBESS.01Renewableco-locationmandateswerecentraltoChina’sbatteryboomMandatoryenergystorageco-locationfornewwindandsolarprojectsplayedanimportantroleinreducingrenewablecurtailmentinChina–fromover17%in2016tobelow5%between2022and2024,whilerapidlyscalingupthebatteryfleet.02China’sBESSsectorisshiftingtowardsamarket-driveneraAsChinaendsitsrenewableBESSco-locationmandateandexpandscapacityremunerationtoenergystorage,fixedrevenuestreamsarebeingphasedout.Theyarebeingreplacedbynewmarketmechanismsthatallowforrevenuestacking,especiallyasenergyarbitragealonecannotyetsupportastrongenoughbusinesscaseforBESS.EMB三R403Utility-scalebatteryutilisationdoubledbetween2022and2025,butco-locatedassetsstilllagbehindPolicyreformsarehelpingbridgethegapbetweencapacitygrowthandlaggingutilisation.Followingthesereforms,renewableco-locatedBESSutilisationrosefrom80to199cycles,whilestandalonesystemsincreasedfrom146to299cycles.Duetolimiteddispatchflexibility,rigidoperationalpatternsandrestrictedrevenuestreams,co-locatedBESSstillrunsaround100lesscyclesperyearthanstandalonesystems.04ClosingtheutilisationgaprepresentsarealopportunityforthepowersystemIfChina’srenewableco-locatedBESShadmatchedtheutilisationrateofstandalonesystemsin2025,itcouldhaveshiftedanadditional9.5TWhofrenewablegenerationovertheyear.Furthermore,iftheentireutility-scaleBESSfleethadrunatanoptimised350cyclesperyear,itcouldhaveshiftedanextra23.0TWhofrenewableenergytopeakdemandhours,equivalenttopoweringSingapore’sentireeconomyforfivemonths.EMB三R5Chinahasbuilttheworld'slargestbatterystoragefleetChinahasbuilttheworld'slargestbatterystoragefleetinrecordtime–buthavingthebatteriesisnotthesameasusingthem.ThenextphaseofChina'sstoragestorywillbedefinednotbyhowmanygigawattsareadded,butbyhowwelltheycansupportthenewpowersystem.SimingLiuGroupStrategySeniorManager,TrinaSolarChinadoubleditsbatterystoragecapacityin2025againstaChinadoubleditsbatterystoragecapacityin2025againstabackdropofmajorpolicyshifts.Withsomuchchangingsoquickly,nowisthemomenttowatchhowthesemarkettransitionsactuallyplayout.Asthepowersystemintegratesmorerenewables,thetruevalueofbatteriestoChina’senergytransitionisbecomingundeniable.Ensuringpolicyfullyrecognisesthisvalueandfacilitatingstorageprojectstostackrevenueswillbecrucialtodrivingsustainable,long-termsectordevelopmentbeyondscaleexpansion.BiqingYangEnergyAnalyst,Asia,EmberEMB三R6Chapter1:FromthescaleChina’srapidbatteryexpansionandchangingpolicylandscapeThefiveyearsfrom2021to2025sawrapidexpansionforChina’sbatteryenergystoragesystem(BESS)sector.Thisboomwasdrivenbysupportivepolicies,mostnotablythemandatesrequiringrenewableenergyprojectstoco-locatestorage.Bytheendof2025,ChinaaccountedforoverhalfofallglobalBESScapacity,establishingitselfastheleaderininstallations.Againstthisbackdropofrapidgrowth,2026marksaturningpointtoanincreasinglymarket-drivenera.Thisshiftisdrivenbyfundamentalchangestothepolicyenvironment,includingakey2025policythatendedthestorageco-locationmandateforrenewables.However,asmarketreformscontinueandregulationsevolve,sustainableprofitabilityremainsthecoreuncertaintyforChina’sBESSsector.Toaddressthis,thesectorisexploringmorediverserevenuestreamsforstorageprojects.Atthesametime,policymakersareclarifyingrulestoenablemoreeffectivepowermarketparticipation.1.1China’sBESSoutgrowsallothercountriescombinedChina'sbatterystoragebuild-outhasnoglobalparallel.Bythefirstquarterof2026,thecountryhasinstalled155.2GW/400.8GWhof“newenergystorage”,149.8GWofwhichconsistsoflithium-ionbatteries.IntheChinesepolicycontext,EMB三R7theterm“newenergystorage”referstocleanstoragetechnologiesexcludingpumpedhydrostorage.ThecategoryiscurrentlydominatedbyBESS.In2025alone,Chinainstalled189.5GWhofnewenergystoragecapacity,effectivelydoublingitstotalcapacityinayear.ChinaisalsotakingupanincreasingshareinglobalBESSinstallations,accountingforoverhalfofglobalBESSinstalledcapacitybytheendof2025,upfromjustover20%in2021.InDecember2025,Chinainstalled18.76GW/65.46GWhofnewenergystorage,exceedingthefull-yearadditionsoftheworld’ssecondlargestmarket,theUnitedStates(US),whichwasat15GW.Lookingahead,ChinaupdateditsnationaltargetinJune2026underits15thFive-YearPlanforbuildinganew-typeenergysystem.Thecountrynowaimstodeploy300GWofnewenergystorageby2030.EMB三R8Furthermore,thisincreaseininstalledcapacitycontinuesintothebeginningof2026,thefirstquarterof2026demonstratedpositiveyear-on-yeargrowth,despitethestrongbasisin2025.1.2China’sbatteryadditionsoutpaceitsrecord-breakingsolargrowthEMB三R9China’ssolargenerationcontinuestobreakrecords,withannualgenerationadditionsacceleratingyearafteryear.In2025,solaroutputsurgedbyarecord336TWh,translatingtoanaverageincreaseof920.5GWheverysingleday.Intheory,the189.5GWhofnewenergystoragecapacitythatChinaaddedin2025wouldbeabletocover21%ofthisnewdailysolargeneration,shiftingitfrompeakdaytimetootherhoursoftheday.Globally,thisfigurestandsat14%.This21%sharealsomarksanincreaseonpreviousyears.ItshowsthatwhileChina’ssolargenerationisgrowingatrecordspeed,batterystoragehasexpandedevenfasteroverthelastfewyears.1.3Co-locationrequirementsprovidedthefirstpushforChina’sBESSgrowthBeyondtheimpactofrapidcostreductions,China’smassivescalingofBESShasbeendrivenprimarilybygovernmentpolicy.In2016,China’swindcurtailmentpeakedat17%annually,someprovincesexceeding40%.Inresponse,thecentralgovernmentintroducedmandatorycurtailmentlimitsforwindandsolarpower,positioningenergystorageasakeysolutiontomeetthesetargets.InJune2017,Qinghaibecamethefirstprovincetorequirewindprojectstoinstallenergystorage,settingamandateof10%oftotalcapacity.MostChineseprovincesadoptedsimilarco-locationrequirementsinthefollowingyears.Renewableprojectswithco-locatedstorageweregrantedsmoother,prioritisedgridconnection.In2021,nationalpolicyexplicitlyrequiredpowergenerationprojectstoeitherbuildorpurchaseenergystorageforpeakregulation.Thisriseinco-locationdirectlyhelpedcutcurtailment,keepingChina’scurtailmentratebelow5%between2022and2024.EMB三RHowever,thiscapacity-basedco-locationmandatehaditslimitations.Withoutadaptedrevenuestreamsandsolutionstoaddressoperationalconstraints,thesebatteriesriskbecomingaburdenforrenewabledevelopers.Meanwhile,underthewiderpowermarketreformframeworkinChina,thegovernmentisdesigningmoremarket-ledmechanismstobothsupportBESSexpansionandbetterreflectitsvaluetothegrid.Forexample,nationalpolicyallowedBESStoparticipateintheancillaryservicesmarketin2021,andencourageditsparticipationinthepowermarketin2022.WeexplorethisfurtherinChapter1.4.In2023,akeypolicycalledforbetterplanningandallocationofenergystorage.In2024,thegovernmentloosenedthenationalcurtailmenttarget,allowingprovincialgovernmentstorelaxco-locationrules.By2025,thegovernmentofficiallyendedthemandatoryrequirementofstorageco-location.EMB三REMB三R1.4TheshifttorevenuestackinginChina’sBESSmarketBatteriesaretheultimatemultitooloftheenergysystem.Theycansmoothoutsupplyanddemand;helptacklerenewableenergycurtailmentandimproveitsdispatchability;andprovidecrucialancillaryservicestomaintaingridstabilityandofferemergencysupport.Therefore,BESSshouldbeabletoaccesscorrespondingrevenuestreamstoreflectitssystemvalue.Someoftheserevenuestreamsarecommonacrossdifferentmarkets,whileothersaremorespecifictoChina’smarketenvironment.Withrapidwindandsolarintegrationandtheongoingpowermarketreform,revenuemodelsforBESSinChinaareshiftingfromadministratively-determinedtowardsmoremarket-basedapproaches.Thecurrentreformalsoopensupfurtherdiversifiedopportunitiesandenablespossibilitiesforrevenuestacking.Meanwhile,manyoftheserevenuestreamsarestillatanearlystageofdevelopmentinChina.TheyarenotmatureenoughtostronglysupportenergystorageindustrydevelopmentandtofullyreflectthesystemvalueofBESS.EMB三REMB三REnergyarbitrageEnergyarbitrageisoneofthemainrevenuestreamsforenergystorageprojects.BESScanprofitfromelectricitypricedifferencesbychargingduringlow-priceperiodsanddischargingduringhigh-priceones.ReformofTOUtariffschangerevenuemodelforbehind-the-meterBESSInChina,BESSprojects,especiallybehind-the-meterBESSofindustrialandcommercialusers,havehistoricallyreliedonenergyarbitragebasedontime-of-use(TOU)tariffs.Sincethe1980s,TOUtariffsinChinahavelargelybeensetbyprovincialgovernments.Forenergystorageprojects,theserelativelyfixedtariffsallowedpredictableandstablerevenue.However,suchpricingmechanismsarebecomingincreasinglylessfitforasystemwithhigherrenewableintegration.Therefore,thisframeworkhasbeenchangingduringtherecentnationalpowermarketreform.InDecember2025,China’sNationalDevelopmentandReformCommission(NDRC)andNationalEnergyAdministration(NEA)issuedamajordocumentthatestablishestherulesforthemid-tolong-termelectricitymarket.Amongotherrules,thedocumentcallsfortheremovalofadministrativelydeterminedTOUtariffsfromMarch2026.Followingthedirectionofthenationalreform,byJune2026,nineprovincesinChinahavecancelledfixedTOUtariffs,withtwomoreprovincesintheconsultationphaseofthereformprocess.Instead,TOUpricingmechanismsareincreasinglyinformedbywholesalespotmarketsignals,althoughimplementationdiffersacrossprovincesintermsofpricingformationandthescopeofmarketparticipation.Moremarket-basedpricingmechanismsareabletobettercapturesystemconditionsandprovidereal-timepricesignals.ThisenablesBESStorespondmoreaccuratelytogridneeds,allowingenergystoragetorealisetheirsystemvaluedrivenbymarketsignals.EMB三RStandaloneBESS’smarketparticipationOpportunitiesforstandaloneBESStoparticipateintheelectricitymarketbecameofficialatthenationallevelfrom2022.Thoughsomeprovincesactedearlier,thecentralgovernmentexplicitlyencouragedBESStoentertheelectricitymarketfromJune2022.Thepolicyalsodefinedthelegalboundariesofstandaloneenergystorage,andencouragedco-locatedBESStoconverttostandalonestatustotradeinthemarket.Itisimportanttonotethat,atthisstageofthemarketreform,energyarbitragealonecannotyetsupportastrongbusinesscaseforBESSprojects.Comparedtomorematureinternationalmarkets,China’sspotmarketpricesignalsremainrelativelyweak.RestrictivepricecapslimitthearbitragereturnsthatstandaloneBESScanearn.WhilemanyprovinceshaverevisedtheirspotmarketrulestowidenthesepricelimitssinceDocument136inFebruary2025,returnsfromenergyarbitragealonearestillinsufficienttomeettheinternalrateofreturn(IRR)requirementsformostprojects.CapacityleasingCapacityleasingisamechanismwherestandaloneBESSrentsouttheircapacitytosolarandwindprojects,helpingdevelopersmeetco-locationrequirementsandflexibilityneeds.Leasingpricesarenotsetatthenationallevel.Severalprovinceshaveintroducedlocalisedpricecapsorfloorstoregulatethemarket,applyingvariedrulesacrossdifferentregions.InChina,capacityleasinghasbeenanimportantrevenuestreamformanystandalonestorageprojectsduringtheperiodofrenewableco-locationmandates.However,followingtheremovalofthesemandates,thedemandforleasingcapacityshrinksignificantly.EMB三RFurthermore,theJanuary2026Document114clarifiesthatwhilestandalonestorageiseligibleforcapacityremuneration,projectscannotbecompensatediftheyarealreadysupportedbyothermechanisms.Forexample,InnerMongolia,oneofthefrontrunnersforsettingcapacityremunerationforBESS,clarifiedin2024thatstandaloneBESSmustchoosebetweenleasingouttheircapacityorreceivingcapacityremuneration.Doublecompensationisprohibited.Fundamentally,capacityleasingisdesignedtosupportrenewableenergyconsumptionandcutcurtailment.ItthereforerepresentsadifferentvaluestreamforBESScomparedtotheotherrevenuestreamsoutlinedinthissection.AncillaryservicemarketBESSprovideskeyancillaryservicestothepowersystem–frequencyregulation,inertiasupport,voltagecontrol,etc.ThesystemvalueoftheseancillaryservicesareincreasinglybecominganindependentrevenuestreamforBESS.AncillaryservicemarketreformisakeyelementofChina’sbroaderpowermarketreform.Currenteffortsaimtoshiftancillaryservicesfromanadministrativelymanagedadd-ontoanintegratedpartofthepowermarket.In2021,ChinaupdateditsnationalrulestoallowBESStoparticipateintheancillaryservicemarket.In2025,Chinaintroduceditsbasicrulesfortheancillaryservicemarket,furtherclarifyingparticipationrulesforBESS.Therulesalsostrengthenlinkswithothermarkets.Forexample,thesameBESSassetcanparticipateinbothspotandancillaryservicemarkets.Thepolicyencouragesprovinceswithsufficientoperationalcapacitytoadoptjointclearing.Thisallowsmarketassetstobidintoboththespotandancillaryservicemarketssimultaneously,usingaunifiedmechanismtooptimiseclearinganddeployassetswheretheyaddthemostvalue.Thiswillfacilitaterevenuestackingandbetterrewardthevaluethatbatteriesbringtothesystem.EMB三RSomeprovincesaretakingamoreproactiveapproach.Forexample,Shandong,afrontrunnerinChina’spowermarketreform,updateditspowermarketregulationsinApril2026.Thenewrulesstatethatancillaryserviceandspotmarketsshouldmovetowardsjointclearingwheretechnicallyfeasible.CapacitypricingmechanismAnotherimportantelementthatChinahasbeenexploringistheestablishmentofamarket-basedcapacitypricingmechanism.Severalprovinceshavemovedaheadofnationalguidance.InNovember2023,InnerMongoliabeganremunerationforpilotstandaloneBESSbasedontheirpowerdischarge.Morerecently,Gansualigneditscapacityremunerationstandards,applyingthesamebenchmarktostandaloneBESSandcoalpowerplants.Atthenationallevel,thegovernmenthadestablishedcapacitypricingframeworksforpumpedhydroandcoalpowerplantsearlieron.AkeypolicyupdatefortheBESSsectorarrivedinJanuary2026,explicitlyexpandingthisnationalscopetoincludestandaloneBESSprojects,movingtowardsamoretechnologyneutralframework.Followingthenationalguidance,12ChineseprovinceshavereleasedtheircapacityremunerationstandardsbyJune2026.Expandingthecapacitypricingmechanismiscrucialforthesector,sincepreviousfixedrevenuestreams,suchasenergyarbitragefromfixedTOUtariffsandcapacityleasing,arephasingout,yetmarketmechanismsarenotmatureenoughtoensureBESSprofitabilityontheirown.Unlockingvaluefrombehind-the-meterbatteriesNewbusinessmodelsareemergingforbatteriesinChina.Combiningtheseassetsthroughaggregatorsoffersanopportunitytoexpandrevenuestreams,inparticularforbehind-the-meterbatteries.EMB三RAggregatorspooldiverseenergysourcesontointegratedplatforms.Notably,virtualpowerplants(VPPs)usedigitaltechnologiestocoordinatedistributedenergyresources.IntegratingBESSintoVPPsbalancestheaggregator'snetworkandoptimisesitsoverallefficiency.Italsoallowsbehind-the-meterbatteriestoparticipateinrevenuestreamsthataretypicallyreservedforlargerassets.Ononehand,BESScanparticipateinpowermarkettradingthroughtheVPP,unlockingextrarevenuefortheproject.FrontrunnerprovincesinChina’spowermarketreform,suchasGuangdong,Shandong,ShanxiandYunnan,alreadyallowVPPstotradedirectlyinthewholesalemarket.Ontheotherhand,byparticipatingindemand-sideresponsethroughVPPs,BESScanearnremuneration.Thedemand-sideresponseremunerationispaidtoenergyusersformanagingtheirlocalloads,helpingtoshavepeakdemandandmaintaingridstability.EMB三RChapter2:TothesystemOperationrealityofChina’sbatterystorageanditswayforwardTheshareofdifferentapplicationtypesinChina’sutility-scalebatteryenergystoragesystem(BESS)installationsisshifting.Intheearlystageofthescaleexpansion,renewableco-locatedBESSwasthedominantsegment.Inrecentyears,however,strongerrevenueopportunitieshavemadestandaloneBESStheprimarydriverofnewcapacity.Inaddition,China’soverallBESSutilisationrateshavedoubledwithinthepastthreeyears.However,autilisationdifferenceremainsbetweenrenewableco-locatedBESSandstandalonesystems,directlylinkedwiththedifferentmarketcontextsforthetwoapplicationtypesinChina.EMB三R202.1ShiftingapplicationstructureinChina’sBESSfleetChina’sBESSmarketwasheavilydependentongovernmentpolicyintheearlierstagesofthescale-up,notablytherenewablestorageco-locationrequirements.Asaresult,themajorityofBESScapacitywasbuiltintorenewableenergysites.In2018,co-locatedprojectsaccountedforover70%ofutility-scaleBESScapacity.Asbatterytechnologiesandthepowermarketmature,thelandscapeisshifting.Thepressuretomeetstrictrenewablecurtailmenttargetshaseasedinrecentyears.Furthermore,inFebruary2025,ChinadroppedmandatorystoragerequirementsfornewwindandsolarprojectsunderDocument136.Evenwithoutthemandate,co-locatedBESSwillremainimportantasChinapushesaheadwithmassiveutility-scalewindandsolarprojects.ButthemarketwillnowincreasinglyshapetheapplicationstructureofBESS.EMB三RInaddition,policysupporthasstrengthenedrevenuestreamsforstandaloneBESS.Asaresult,theshareofstandalonesystemsissteadilyincreasinginChina’sbatteryinstallations.Standalonestoragehasnowtakenoverastheprimarymarketdriver.FromJanuarytoApril2026,standaloneBESSaccountedfor84.7%oftotalnewinstalledcapacity,whilerenewableco-locatedBESSaccountedforonly8.4%.Themajorityoftheremainderconsistsofbehind-the-meterstorage.Thisshiftinapplicationstructuremattersbeyondmarketstatistics.GiventhedifferentmarketcontextsforthesetwoapplicationtypesinChina,whetherabatterysitsbehindarenewableprojectorstandsaloneonthegriddecideshowitoperates,howoftenitisdispatched,andthetypeofsystemvalueitdelivers.Thisrealitybecomesclearerwhenlookingattheutilisationdata.2.2Utilisationisrising,butco-locatedBESSstilllagsstandalonesystemsChina’sutility-scaleBESShaspreviouslyexperiencedlowutilisationin2022,accordingtotheChinaElectricityCouncil(CEC):standaloneBESSran146cyclesperyear,whilesystemsco-locatedwithrenewableprojectsmanagedonlyaround80cycles.Furthermore,thesenationalannualaveragescannotrepresentevenlowerutilisationratesinindividualprovinces.UtilisationisnowrisingacrossallsegmentsofChina’sbatteryfleet.Thisshiftbeganin2022,whenBESSwasofficiallyrecognisedasaparticipantinnationalpowermarkets.By2025,utilisationratesforbothrenewableco-locatedandstandaloneBESShadeffectivelydoubledcomparedtotheir2022levels.Asareference,internationally,350cyclesperyear,aroundonecycleperoperationday,isconsideredanoptimisedstandardforthecurrenttechnology.EMB三RDespitetheoverallgrowth,renewableco-locatedBESSisutilisedsignificantlylessthanstandalonesystems.Evenwithrecentimprovements,astark100-cyclegapremainedbetweenthetwoapplicationtypesin2025.Thisdisparityisdrivenbyseveralkeyfactors:Fundamentalfunction:Co-locatedBESSwasbuiltprimarilytomeetregulatoryrequirements,andreducelocalcurtailmentandimproveoperationforitsparentrenewableproject.Incontrast,standaloneBESSisdesignedtoprofitfromenergyarbitrageandprovideancillaryservices,respondingdirectlytosystem-widesupplyanddemand.Dispatchscale:Co-locatedBESSprimarilysmoothsoutlocalgenerationbehindtherenewableproject’smeter,ratherthanrespondingtobroadergridneeds.EMB三RFurthermore,becausetheseassetsarehighlydistributedwithsmallercapacities,theyarelessprioritisedforwiderdispatch.Incontrast,standaloneBESSisdirectlymonitored,dispatched,andprioritisedbythegrid.Revenuestreams:Therevenuemodelforco-locatedBESSistieddirectlytotheparentpowergenerator.Theycanboostprojectrevenuebyreducingcurtailment,andwhiletheycantheoreticallyparticipateinthepowermarketasapartoftheparentproject,specificrulesremainunclearinmostprovinces.Incontrast,standaloneBESShasbeenofficiallyr