3.5_microgrid market operations with distribution system operators_shahidehpour_epri/snl microgrid

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  • 1

    Microgrid Market Operations with Distribution System Operators

    Mohammad Shahidehpour, IEEE FellowGalvin Center for Electricity Innovation

    Illinois Institute of Technology

  • 2

    n SmartGrid

    n Advancedmonitoringandsensingdevices,sophisticatedmeters,andreal-timecommunicationandcontrolinfrastructures.

    n Selfgeneration,Controllableloads,Communitystorage

    n Microgridswithdistributedgenerationandstoragedevices

    n Aggregationofsmallcustomerswithshiftable/curtailableloads

    n Largecustomerswithon-sitegenerationandstoragesystemsandcurtailableandshiftable/deferrableloads

    Changing Energy LandscapeGoal:EnhancethePowerSystemReliability,Resilience,Economics,Security,andSustainability

  • n Energy:n LoadShiftingn PeakShavingn Load

    Reduction

    n DeferredGenerationInvestment

    n DeferredT&DInvestment

    n ReducedO&MCosts

    n DistributionReliability:n LowerSAIFIn LowerCAIDI

    n PowerQualityn SystemReliability

    n Capacityn AncillaryServicesn LoadFollowingn BalancingEnergy

    Economic Social

    Benefits of Microgrids/ Active Distribution Systems

    Reliability Environmental

    GreenHouseGasReduction HigherRenewablePortfolio

    StandardCompliance RenewableEnergyCredits

    EnhancedEnergyIndependence

    EnhancedEconomicDevelopment

    ImprovedCustomerSatisfaction

    ImprovedCustomerChoice

    Presumer Values

  • n Seams between Wholesale and Retail Marketsn Operational

    n Scheduling Practices and Protocols n Retail and Wholesale Coordinationn Impact of Voltage Level on Load Aggregation/Demand Responsen Distribution Congestion Management

    n Pricing Mechanismn Optimal Scheduling Practicesn Bus LMPs versus Distribution LMPsn Rate-Setting Process/Retail Tariffsn Distribution Charges

    Microgrid Market Challenges

  • Bulk Power Products

    Day-Ahead Energy Real-Time Energy Balancing Energy Non Spinning Reserves Spinning Reserves Regulation

    Capability Data/Telemetry

    DispatchInstructions

    DSO Data

    Generation/Load Data Time of Use Critical Peak Price Dynamic Pricing Commercial/Industrial Curtailment

    Contracts Direct Load Control Options Etc

    Bulk Power Limits

    Pmax , Pmin Ramp Rate Min/Max Up & Down Time Incremental Cost Curve

    DSO :Closing the Gap with ISO (Retail and Wholesale Operations)

    BulkPowerMarkets

    DSODispatch&Operations

    Microgrid

    Substation

    TransmissionOperator

    LargeGenerators

    Substation

    PCC

    MicrogridSubstation

  • DSO as a Partner to Microgrids / Presumers

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  • CommunityMicrogridInChicago

    11

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    DSOs Decision Making Model

    ISOs Operation Model

    DSO Model

    Microgrids/Load Aggregators with DR Flexibility

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    DSOs Decision Making Model

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    ISOs Day-Ahead Operation with DSO

  • n GenerationCapacityCostSavingsn AnnualSavings perMWofDR:$40K- $120Kn NPV:$300K- $900KperMWofDR

    Note:NPVCost ofaCT~$600KperMW

    n EnergyCost Savingsn AfewthousanddollarsperMWofDRperyearn NPV Range:$50K - $200K perMWofDR

    n T&D CostSavingsn Samplequotes (differentamongRegions)

    n HighAnnual SavingsNPV:$1.5MperMWofDRn LowAnnual SavingsNPV:$200KperMWofDR

    n Savings/Revenues fromAncillaryServicesn AfewthousanddollarsperMWofDRperyearn NPVRange:$50K- $200KperMWofDR

    n TotalCostSavings perMWofDRn NPV:$600K- $2.8MperMWofDR

    $-

    $200

    $400

    $600

    $800

    $1,000

    $1,200

    $1,400

    $1,600

    Generation T&D EnergyCost AncillaryServices

    $K

    DR Benefits Offered by DSO

  • $0.00

    $10.00

    $20.00

    $30.00

    $40.00

    $50.00

    $60.00

    $70.00

    $80.00

    $90.00

    $100.00

    0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

    LMP($/M

    Wh)

    HouroftheDay

    AverageSummerDayRTLMP(Anaheim;June-September)

    AverageofHoursEnding 1through8:$20.50AverageofHoursEnding14through21:$47.71

    Potential Impact of Summer DR : Fixed DR Schedule: $26,000/MW DR Optimal DR Schedule: $49,000/MW DR

    Load Shifting Benefits

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