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Iron Flow Battery
Energy Storage for Remote Grids and Mining Operations
Hugh McDermottSenior Vice President
December 2018
Company Overview
Company Technology ProductManufacturing
� Founded in2011
� HQinWilsonville, OR
� KeyInvestors:‒BASF‒Presidio Partners,‒Pangaea‒CycleCapital
� Worldwide salesthroughmultiplesaleschannels
� Ironflowbatterytechnology
� DevelopedinpartnershipwithUSDOE(ARPA-E)
� IPprotected(30+patentfilings)
� 5+yearsofresearch,productdevelopmentandfieldtesting
� 100,000ft2 facilityinWilsonville, OR
� Scalingto1GWh/year
� Efficient&scalablemanufacturing
� Lowautomationcapitalcostsallowsforaflexible, distributedmanufacturingmodel
� Unlimitedcyclingcapability
� Doesnotdegradewithuse
� Safest,mostsustainablechemistryonthemarket
� 25yeardesign life
� Secondgenerationtechnology.
2ESSTech,Inc.
Iron Flow Battery – a Workhorse
3ESSTech,Inc.
50%
70%
90%
110%
0 2,000 4,000 6,000 8,000 10,000
Capacity(%)
Cycles
ESSIFBCyclePerformanceShallow Cycling (100%<-->75%)
ESSData Li-IonCells50%
70%
90%
110%
0 2,000 4,000 6,000 8,000 10,000
Capacity(%)
Cycles
ESSIFBCyclePerformanceDeepCycling(100%<-->25%)
ESSData Li-IonCells
Nohazardouschemicals,nofireriskUSDOEtestedtoover4decadesofdaily
cyclingwithnolossofperformance
Iron Salt
Energy WarehouseTM Platform“Plug in and add water”
EnergyWarehouseTM
� Shipanywhere,fullycontainerizedbatterywith400kWhstorage;50and100kWpowerinterfaceoptions
� Turnkeydesign includesinverter,PCS,BMS,controlsandcommunicationsinterface
� -5Cto50CoperatingrangewithnoneedforAC� Well-suitedformicrogridsandcommercial/industrialuse� Longassetlife,canlastdecadeswithnodegradation
StackableModularDesign
4
Easytopermit,installandcommissionLongassetlife=re-deploywhenneedschange
ESSTech,Inc.
Energy CenterTM PlatformUtility-scale solution
Highlights� Customengineereddesigntomeetspecificpowerandstoragerequirements
� 250kWmodularpowertrainscalabledesign� OperatingRange:Upto125FambientwithnoACrequired
� Lowauxloadrequirements:~2%
� EnergyDensity:15MW/90MWh/acre
� Capex:mid$200s/kWh
� LCOS:<$0.05/kWh
5
ScalableDesignfrom5MWto1GW
ESSTech,Inc.
LTO NMC ZnFlow VRBNaSPb-AcidMoreSafe
32
2W
32
1COR
30
2W
20
0cor
30
2cor
20
0cor
Less Safe
Safety
32
2W
ESS
Sustainable & Safe
6
Safest,mostsustainablebatteryavailableNofire,chemicalorexplosiverisktopersonnelNohiddenliabilities,nosoftcostsforhazmatcomplianceandincidenceresponse
ESSTech,Inc.
$0.23 $0.22 $0.22
$0.18
$0.12 $0.12$0.10 $0.10
$0.09
$0.05
$0.00
$0.05
$0.10
$0.15
$0.20
$0.25
Aquion Primus Redflow EOS ViZn LTO NMC(Tesla)
LFP(BYD)
VRB ESS
LevelizedCostAnalysis- 2020CapExCost
7
Competitive Comparison
LCOScalculatedforrenewableintegration:� 600MWhenergystoragefacility� 4 hours ofusablestorage,1cycleperday� 25yearsofoperation
Li-ionChemistries
$0.037 $0.03
� 2cycles/day@4hrs� 2cycles/day@5hrs
IncreasedCyclesandLongerDurationIncreasesValue
LCOS($/kWh)
ESSTech,Inc.
Summary
2/5/2018 ESSTech,Inc.Confidential 8
ESSINSTALLATIONS
StoneEdgeFarmsZeroNetEnergyMicrogrid
System: 60kWhUseCase: MicrogridCommissioned:2015Location: SonomaCounty,CA
ProjectOverviewZeronetenergymicrogridproject. StoneEdgeWinery,basedinSonoma,CApromotessustainablepractices(energy,agriculture).Thewineryhasdevelopedamulti-assetmicro-gridsystemthathasenabledittoachieveazeronetenergy operation.ESSEnergyWarehouse(EW)storageproductwasaddedearlyinthemicrogriddevelopment tostoresolarenergygeneratedonsite.Thisstoredenergy isinturnusedtopowerirrigationpumpingaswellasahydrogengenerator thatcreatesfuelusedintransportvehiclesandanonsitefuelcell.
InSeptember 2017,Sonomacountyexperienceddevastatingfireswhichcausedwidespreadpowerblackouts.StoneEdgewasabletocontinuedailyoperations.Duetothesuccessofthemicrogridduringtheblackouts,StoneEdgeisupgradingtheESSstoragetothenextgeneration toprovideincreasedpowerandcapacity(50kW/400kWh)
USArmyCorps
System: 225kWhUseCase: Off-gridCommissioned: 2016Location: FortLeonard-Wood,MO
ProjectOverviewTheUSArmyCorpsutilizestheEWforintegrationwithdieselgenerators inconfigurationsintendedtosimulateforwardoperatingbaseconditions.TheEWgridformsandfollowsthebase’sload,limiting thedieselgenerator useforenergystoragecharging.
Theuseoflong-durationbatterystoragetooptimize/reducedieselgensetoperationhasshownbenefitsof30-40%fuelsavings.TheEWalsoprovidesthebasewithimprovedgridresiliencywithride-throughcapabilityandmicro-gridoperationduringgriddisturbancesandutilityoutages. AdditionalbenefitsattributedtotheEWincludeeaseindeployment,ability toredeployandcommissionasneedschangeandabilitytooperateininhospitableenvironmentswithoutneedforauxiliaryequipmentorresources.
ESSTech,Inc.Confidential
ESSINSTALLATIONS
UCSDMicrogrid
System: 400kWhUseCase: MicrogridCommissioned:2017Location: UCSD,CA
ProjectOverviewTheEWisbeingpilotedundergrantfundingfromtheUSgovernmentandintendedtoenable researcherstoindependentlytestthebatteryacrossavarietyofdifferentoperatingschemestosimulatebothbehindthemeterandinfrontofthemeterstorageapplications.TheEWhasbeendeployedwithinoneofthemostadvancedanddiversemicro-gridsinNorthAmericaandwillbeco-testedbytheUCSDandPXiSE EnergySolutions,theunregulatedbusinessarmofSempraEnergy.
Akey focusoftheresearchandtestcaseswillbetodemonstratetheuseoftheEWtoprovidemultipledifferentbenefits,includingrevenuegeneratingservicesfromasingleasset.These testswillincluderesponse-time,frequencyregulation,anddispatchablegeneration testingandwillvalidateability todiscretelyprovidemultiple revenuegeneratingservices inCAISOmarket.
DNV-GL
System: 400kWhUseCase: RenewableIntegrationCommissioned:2017Location: Lubbock,Texas
ProjectOverviewDNV-GLwillutilizetheEWforbulkenergyshiftingwiththewindturbinesandsolarPVon-site.ERCOT, theISOresponsiblefortheTexasenergygrid,hasanoversaturationofwindprojectsinrelation totheircurrenttransmissioninfrastructure.Thishasbeenamajorpainpointforrenewable energydevelopersandindependentpowerproducers,astheirprojectsarefrequentlycurtailedandexperiencehighbasis-riskfromtransmissioncongestion;negativelyaffectingprojectrevenues.Bulkenergyshiftingwillallowdevelopers totakeadvantageofpowerpricingandenergydemandnottypicallyservedbydailywindgenerationprofiles,helpingtoalleviate theeconomicburdenexperienced fromthecurrentERCOTconstraintsaforementioned.
ESSTech,Inc.Confidential
ESSPROJECTSUNDERCONSTRUCTION
BigDutchmanInternationalGmbH
System: 400kWh;8hours storageUseCase: Resiliency|PV+StorageCommissioning: Q42019Location: Germany
ProjectOverviewBDprovidesfeedingandhousingsystemsforpoultryandpigfarmingglobally.Servicesandofferingsincludingenergysolutionsforenergysavingsandcriticalservicesbackup.BDisevaluatingtheESSenergystoragetechnologyasalow-costandinherentlysafesystemforintegrationwithsolarsystemstoofferasacombinedsystemtoitscustomersworldwide.UsecasesincludereducingoreliminatingdieselgeneratorbackupatpoultryfacilitiesandreducingenergycostsusingPV+storagesolutionsfortheircustomers.
BigDutchmanInternationalGmbH,throughitssubsidiaries,manufacturesfeedingsystemsandhousingequipmentforpigandpoultrymanagement.Itoffersalternativeeggproductionequipment,colonysystems,poultrycages,equipmentforpoultrygrowing,breedermanagementsystems,poultryandpigclimatecontrolsystems,exhaustairtreatmentsystems,residuetreatmentsystems,biogasplants,andmixedfeedproductionequipment.ThecompanyalsoprovidesBigFarmNet,asystemthatallowsuserstocontrol,monitor,andmanagevariouscomputersandcontrollersontheirfarmfromacentrallocation.ItoffersitsproductsthroughsalesrepresentativesinGermanyandinternationally.Thecompanywasfoundedin1938andisbasedinVechta-Calveslage,Germany.BigDutchmanInternationalGmbHoperatesasasubsidiaryofBigDutchmanAG.
ESSTech,Inc.Confidential
ESSPROJECTSUNDERCONSTRUCTION
MarineCorpsBaseCampPendleton,theCorps'largestWestCoastexpeditionarytrainingfacility,encompassesmorethan125,000acresofSouthernCaliforniaterrain.CampPendletonisoneoftheDepartmentofDefense'sbusiestinstallationsandoffersabroadspectrumoftrainingfacilitiesformanyactiveandreserveMarine,ArmyandNavyunits,aswellasnational,stateandlocalagencies.
Followingrecruitgraduation,enlistedMarinesreceivebasicinfantrytrainingattheSchoolofInfantry-WestbeforeassignmenttootherunitsthroughouttheCorps.Morethan38,000militaryfamilymembersoccupybasehousingcomplexes.However,withadaytimepopulationof70,000militaryandcivilianpersonnel,theMarines,SailorsandtheirfamiliesrelyonthesurroundingcommunitiesforretailgoodsandservicesnotavailableonBase.
USMarineCorpsCampPendleton
System: 400kWh;8hoursstorageUseCase: Microgrid|PV+StorageCommissioning: Q42018Location: CampPendleton,CA
ProjectOverviewESSisprovidingenergystoragesystemthatwillbeintegratedintoadiversemicrogridinstallationfeaturingPV,CPV,dieselgenset,flywheelsandgeothermalheatpumps.DubbedtheFractalGrid Demonstration,thismicrogridwillprovidemultiplebenefitstotheMarineCorpsincludingresilientback-upcapabilitytocriticalITinfrastructure,electricitysavingsthroughdemandchargemanagementandTOUarbitrage,andfullislandingcapabilities.TheESSbatterywillbeintegratedwiththeCleanSparkmicrogridcontrollerwhichwillprovidetheoverallmicrogridoptimizationandcontrol.
ESSTech,Inc.Confidential
ESSPROJECTSUNDERCONSTRUCTION
BASFGlobalHeadquarters
System: 400kWh,8HoursStorageUseCase: R&DPilotCommission: Q12019Location: BASFHeadquarters,Germany
ProjectOverviewBASF,theleadinvestorinESS’sSeriesBfundinground,purchasedtheEnergyWarehouse50kW/400kWhforR&DtestingattheirglobalheadquarterinGermany.Theunitwillbeusedtotestamultitudeofusecases,bothbehindandinfrontofthemeter.Additionally,BASFandESSrecentlyenteredintoaJDAforglobalsalesandtechnologicalimprovementstotheironflowbattery.Thefuturetestingconductedonunitwillhelpfurtherimprovethepowerdensityoftheelectrolyte,roundtripefficiency,andenergycapacityoffutureESSproductofferings.
BASFistheglobalchemicalindustryleader,ranked126ontheFortuneGlobal500.Theyspecializeinfivesegments:chemicals,performanceproducts,functionalmaterialsandsolutions,agriculturalsolutionsandoil&gas.BASFemployeesmorethan115,000employeesworldwideandgenerated$64.5billioninrevenue2017.
ESSTech,Inc.Confidential
ESSPROJECTSUNDERCONSTRUCTION
Pacto GDBrazil
System: 400kWh,8HourStorageUseCase: PV+StorageCommission: Q32019Location: Goiás,Brazil
ProjectOverviewESShasbeenawardeda$1.3MgrantfromtheUSTDAtodesignandinstallthefirstEnergyWarehouse50kW/400kWhunitinLatinAmericaforPacto GD,aBraziliansolardeveloper.TheEnergyWarehousewillbeutilizedwitha100kWPVarrayforbulkenergy-shifting.Inaddition,theprojectwillenablethelocalendcustomer,toshedtheirrelianceontheuseofdieselgeneratorsduringpeakhours.Thesystemwillprovidehealth,safetyandnoisereductionbenefits,financialsavingsinfuelandmaintenance,andreduceenergycostsduringpeakdemand.
Pacto Energia isawhollyownedsubsidiaryof3FCapital,specializinginthedevelopmentofcommercialhydro,solar,andwindpowergeneration.Inits17+yearsinoperation,Pacto Energia hasbuiltarenewableportfolioofmorethan4gigawattsintheLatinAmericamarket.PactoEnergiapresentssolutionstoreduceconsumptionandcostswithelectricityforitscustomers.
Appendix:RecommendationsForConsideringFlowBattery
15ESSTech,Inc.Confidential
CurrentMacroMarketCharacteristics:– Theenergystoragespaceisdominatedbyshortduration, lithium-Ion batteries.– GridOperators,Utilities,industrial&Commercialcustomersknowhowtoevaluatethecharacteristicsofthesebatteries.– LongerDurationStorageisquicklybecomingaRequirement– Longerduration, IronFlowBatterieshavecharacteristicsthatarenotnormallyevaluatedandtheirbenefitsareoften
overlooked.
RequiredEvaluationParametersforTechnologyAgnosticDecisions:– Unlimitedcycling(comparedwithsinglecycle/daylithium-ion)– ZeroCapacityFaderegardlessofthenumberofcycles/day;– Extendedoperatingtemperatures(25-125degreesF)– ZeroCapacityFadeduring“idleconditions”– LowestLevelizedCostofServicewithmultiplecycles/day– Abilitytoprovide4,6,8,or10hoursstoragedurationonasinglecycle– NoHazardousChemicals;NoHazardousChemicalPlanorDisposalPlanrequired;Noshippingrestrictions– NoFireRisk(batteryisa“fireextinguisher);SubstantiallyReducedRisksofOperatinginSubstationsorinfirehazard
areas.– VirtuallyNoPermittingRisks– Nopreciousmetalsorhardtosourcematerialsandnoassociatedpriceor supplydisruptionrisk
Iron Flow BatteryEvaluation Parameters