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DERValuesandDSOModels
LorenzoKristov,PhDElectricSystemPolicy,Structure,MarketDesigni-PCGRIDConference2018March29,2018
Decarboniza?onrequireselectrifyingallfossil-fueluses:transporta?on,buildings,industry,agriculture
– Theelectricsystemaccountsforonly20%ofGHGemissions– Transporta?onabout42%,buildingsabout35%1.Directelectricsystemimpactswillbemostlyondistribu6on2.Resiliencewillriseinpriorityandinformpolicies3.Electrifica6onstrategieswillintersectwithmunicipalplanning=>Reshapingelectricitydemandandgridopera6ons,planning,markets,businessmodels,u6lityregula6on,capitalinvestment– WholesalemarketpricesandrevenuesshrinkduetorenewablesandDER– Tradi?onalbusinessmodels,incen?vesandratedesignsneedupda?ng– The“market”movesbehindthemeter
• MarketisforservicesmorethanforthekWhcommodity• Energyuserscancustomizeenergyusesandsourceswithon-siteassetsand
controltechnologies• Usethebulkenergymarketforresidualneedsorsurpluses
Page2 EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
CurrentthinkingabouttheDERvalueproposi?ondoesnotyetquan?fysignificantbenefits.
DERvaluehasfocusedonservicestoend-users,distribuFonassetdeferral,wholesalemarketservices,resourceadequacycapacity
– Rulesforservicestacking(akamul?-useapplica?ons)ares?llinprogress:dispatchpriority;measurement;doublepayment;wholesale/retailrates
ValueofshapingandintegraFnggrowingelectrificaFondemand
– Shapenewdistribu?on-levelloadstominimizechallengestosystemopera?onsandneedforpeakD&Tinfrastructure
– Managecircuit-level“ducklings”andshort-termvola?litylocally
– Requiresnewretailratedesigns;pricingofD&Tservices
ValueofresiliencetoseveredisrupFons– Minimizeimpactsofsevereservicedisrup?onsandassistthesystem
– Allresilienceislocal,allbasicneedsarepartsofaresilientcommunity
– Electricserviceasenablerofmostessen?alservices
Page3 EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
High-DERelectricsystemrequiresnewT-Dcoordina?onframework=>newDSOdesigns.
v BookendA:CurrentPathor“MinimalDSO”orcentralizedop?miza?on– DSOmaintainscurrentdistribu?onu?litymission–reliabledistribu?on
service–enhancedonlytoensurereliabilitywithhighDERvolumes– LargenumbersofDERarecentrallyop?mizedinISOmarket– DERengagein“mul?ple-useapplica?ons”(MUA)providingservicestoend-
usecustomers,DSOandwholesalemarket
v BookendB:“TotalDSO”orlayeredop?miza?on– DSOexpandsitsroletoinclude
• DERaggrega?onforwholesalemarketpar?cipa?on• Op?mizinglocalDERtoprovidewholesalemarketservices• Balancingsupply-demandlocally• ManagingDERvariabilitytominimizeimpactsatT-Dinterface• Poten?altooperatedistribu?on-leveltransac?vemarkets
– DSOprovidesasingleaggregatedbidtoISOateachT-Dinterface– MUAaresimplified,dispatchconflictseliminated,becauseDSOisresponsible
forresponsetoISOdispatches
Page4 EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
LocalDistribu?onArea(LDA)orCommunityMicrogridcoordinatedwiththedistribu?onu?lity(UDC)
RegionalInterconnec?on
Architectureofafuturehigh-DERelectricsystem:alayeredhierarchyofop?mizingsub-systems.
Smartbuilding
Micro-grid
LDA LDA
BalancingAuthorityArea
BAABAA
Smartbuilding
Smartbuilding
• Storage,DGandcontrolsonpremisesformabuilding-levelmicrogrid
• Eachlayeronlyneedstomanageitsinterchangewithnextlayerabove&below,notdetailsinsideotherlayers
• TheBAop?mizesbulksystemonlyuptotheT-Dinterfaces
• Layeredcontrolstructurereducescomplexity,allowsscalability,increasesresilience&security
• Fractalstructuremimicsnature’sdesignofcomplexorganisms&ecosystems.
=pointofinterface
Dozensofindividualbusinesses
100sofindividualresidences
EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
Page5
Thechangingenergylandscapeoffersawealthofopportuni?es.
v T-Dinterfacecoordina?onframeworkforahigh-DERfuturegrid– Rolesandresponsibili?esofTSOandDSO–opera?ons,planning,markets
• FERCTechnicalConferenceApril10-11– Willhaveimplica?onsforfuturedistribu?onu?lityfunc?ons&models
v RegulatoryframeworksforDSOsanddistribu?on-levelmarkets– Createan“openaccess”frameworkforDERprovidersusingDSOsystems,
analogoustowholesalemarketframeworkforISOs– Developalayeredreliabilityframework
• Specifyreliabilitystandardsandrequirementsattheinterfaces• Hand-offreserveandRArequirementsfromISOtoDSOattheT-Dinterfaces• EnableislandingatT-Dinterfaces
– Considernewfederal-statearrangements• Couldstatesregulatedistribu?on-levelmarkets?
v Collabora?veprojectsbetweencommuni?es,distribu?onu?li?esandDERproviders– Localprojectsforelectrifica?on,communityenergyandresilience.
Page6 EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
Thankyou.
LorenzoKristovLKristov@cal.net
Page7
Addi?onalresourcesDecentraliza?onandLayeredOp?miza?on• hop://resnick.caltech.edu/docs/Two_Visions.pdf
• hops://www.academia.edu/12419512/A_Future_History_of_Tomorrows_Energy_Network
• hops://gridarchitecture.pnnl.gov/media/advanced/Distribu?on%20Control%20Ref%20Model_v1.1_final.pdf
• hop://gridarchitecture.pnnl.gov/media/advanced/Sensor%20Networks%20for%20Electric%20Power%20Systems.pdf
FutureDistribu?onSystems,PlasormsandDSOs• hops://emp.lbl.gov/sites/all/files/FEUR_2%20distribu?on%20systems%2020151023.pdf
• hop://doe-dspx.org
TheBooom-upEnergyTransi?on• hop://www.cpuc.ca.gov/uploadedFiles/CPUC_Public_Website/Content/
U?li?es_and_Industries/Energy_-_Electricity_and_Natural_Gas/Lorenzo%20Kristov%20Comments.pdf
CAISOreport:Electricity2030:TrendsandTasksfortheComingYears• hop://www.caiso.com/Documents/Electricity2030-TrendsandTasksfortheComingYears.pdf
Page8 EletricSystemPolicy,Structure,MarketDesignLKristov@cal.net
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