the energy-water nexus at doe 2016 climate change … · 2016-10-21 · drinking water treatment...
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TheEnergy-WaterNexusatDOE2016ClimateChangeSymposium:Water-Energy-Climate
October12,2016
DianaBauerOfficeofEnergyPolicyandSystemsAnalysis
DepartmentofEnergy
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Energy-WaterNexus:DOE’sRole
• DOEhasstrongexpertiseintechnology,modeling,analysis,anddataandcancontributetounderstandingtheissuesandpursuingsolutionsacrosstheentirenexus.
• Ourworkhasbroadanddeepimplications– User-drivenanalytictoolsfornationaldecision-
makingsupportingenergyresiliencewithinitialfocusonthewater-energynexus
– SolutionsthroughtechnologyRDD&D,policyanalysis,andstakeholderengagement
• Wecanapproachthediffusewaterareastronglyfromtheenergyside– Focusonourtechnicalstrengthsandmission– Leveragestrategicinteragencyconnections
Downloadthefullreportatenergy.gov
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StrategicPillars
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• Optimizethefreshwaterefficiencyofenergyproduction,electricitygeneration,andendusesystems
• Optimizetheenergyefficiencyofwatermanagement,treatment,distribution,andendusesystems
• Enhancethereliabilityandresilienceofenergyandwatersystems
• Increasesafeandproductiveuseofnontraditionalwatersources
• Promoteresponsibleenergyoperationswithrespecttowaterquality,ecosystem,andseismicimpacts
• Exploitproductivesynergiesamongwaterandenergysystems
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EnergyandWaterSystemsareInterconnected
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Secretary’sEnergy-WaterRoundtableSeries(2015)
• 6Roundtables:– Opening,Fuels,WaterInfrastructure,Electricity,SystemsIntegration,Capstone
• KeyTakeaways:– ClimateChange:Designersofenergytechnologies,policies,andsystemsshouldbecognizant
ofinterconnectionamongenergy,water,andclimate.– EnergySecurity:Energysystemsmustmitigateriskrelatedtowaterresourcescarcityand
variability.– LifeCycleEnvironmentalResponsibility:Environmentallyresponsibleenergytechnologyand
policydevelopmentshouldbeinformedbylifecycleandsystemicunderstanding.– SystemsComplexityandSystemsChange:Understandingchangeinenergyandwater
systemsisrequiredforforward-lookingtechnologyinvestmentandpolicythinking.• NextSteps:
– SupportPriorityTechnologyRDD&D– BuildaData,Modeling,andAnalysisPlatformtoImproveUnderstandingandInform
Decision-MakingForaBroadRangeofUsers– EngageStatestoAdvanceInnovative,IntegratedPolicy DesignsatMultipleScales– PursueInnovativeFinanceModelstoLeverageOpportunitiesacrossMultipleSectors– PursueBilateralInternationalCollaborationtoSolveSharedChallengesattheEnergy-Water
Nexus5
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Energy-WaterNexusWorkAreas
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RespondingtoChallengesintheEnergy-WaterSystem
Water-EfficientCooling
Energy-OptimizedTreatment,
Management,andBeneficialUseofNontraditional
Waters
SustainableLow-EnergyWaterUtilities
Population/Migration
LandUse&LandCoverChange
EnergyTechnologyPathways
RegionalEconomicDevelopmentUrbanization&
InfrastructureDynamics
PolicyandInstitutionalChanges
StakeholderandConsumerPreferences
ClimateChange(Mitigationand
Adaptation)
ForcesonSystem
TechnologySolutions
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TrendsinWaterWithdrawalsofThermoelectricGenerationRelativetoOtherUses
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The water withdrawal intensity of thermoelectric generation has decreased since 1950. Total water withdrawn by thermoelectric generation increased significantly between 1950 and 1980 and has declined somewhat since then.
Data source: Maupin, M.A. et al., 2014, Estimated use of water in the United States in 2010: U.S. Geological Survey Circular 1405; and EIA. 2011. Annual Energy Review 2011.
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U.S.PowerSectorisRespondingWithIncreasedUtilizationofDryCoolingandNontraditionalWater
DataSource:EIA(2015)
However…• Currentdrycoolingtechnologiesaremoreexpensiveandcomewithefficiency
penalties(andassociatedhigheremissions).• Usingnontraditionalwaterusuallymeansmoreelectricityforpumpingand
treatment(andassociatedhigheremissions).
73%
13%
7%
3%4%
ExistingCoolingSystems(1,595)
31%
27%14%
7%
21%
ProposedCoolingSystems(30)
SurfaceWater Groundwater
PlantDischarge
Other N/A(DryCooling)
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• Air-coolingheatexchangers(3projects)• Sorption&othersupplementalcooling(4projects)• Radiativecoolingandcoolstorage(3projects)
‣ FluegasH2Orecovery&coolstorage(2projects)‣ CombinedACC&coolstorage(2projects)
SampleIndirectDry-CoolingSystemthatSatisfiesARIDProgramObjectives
ARPA-E’sAdvancedResearchinDryCooling(ARID)ResearchSolicitationisfunding14projectsforatotalof$30million:
DryCoolingforElectricityGeneration
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InSomeCases,Low-EmissionsGenerationRequiresMoreWater
(DOE,2014)DataSource:Meldrumetal.(2013)
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CarbonCaptureIncreasesWaterIntensityofPower
Source(DOE,2014).DataSource:Meldrumetal.(2013)Capturetechnology:monoethanolamine
0
200
400
600
800
1,000
1,200
1,400
CC PC SC IGCC
NaturalGas Coal
Consum
ption(gal/M
Wh)
ConsumptionwithoutCarbonCaptureAdditionalConsumptionwithCarbonCapture
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TheEnergyIntensityofWaterTreatmentandProvisioningVaries
Manytrendsmayincreasetheenergyconsumptionbythewatersector,including:• Increaseddemandforwater;• Retrievingwaterfromfurtherawayorharder-to-reachsources;• Treatingnontraditionalwaterforbeneficialuse;and• Meetingmorestringentenvironmentalregulations.
Energy Intensity for California Low (kWh/MG)
High (kWh/MG)
Notes Reference
Treatment
Drinking Water Treatment 100 16000 High: Desalination (CEC 2005)
Wastewater Treatment and Distribution 1100 4600 (CEC 2005)
PumpingWater Supply/Conveyance 0 14000 High: Interbasin transfer
(State Water Project); Low: Gravity fed
(CEC 2005)
Primary Drinking Water Distribution 700 1200 (CEC 2005)
Recycled Water Distribution 400 1200 (CEC 2005)
Groundwater for Agriculture 500 1500 High: CO River BasinLow: North CA Coast (CPUC 2011)
(source:DOE,2014)
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EnergyPositiveWaterResourceRecovery
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• NSF/EPA/DOE/WE&RFCollaboration:waterresourcerecoverytestbednetworkthatlinkedtopolicy-making.http://www.werf.org/testbednetwork
• ComplementsEEREworkonwastewateraccelerator,wastewatertechnicalassistance,andwaste-to-energyR&D
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CleanWaterTechnologies
• Addressmanufacturingbarrierstoproducinglow-energy,cost-competitivecleanwater• Technologyprioritiesarisefromfacility-levelsystems-relevantchallenges• Leverageexistingfederalresources(e.g.DOI/BureauofReclamationtestbeds)• RequestforInformationtobeissuedsoon
WaterSources
Output• Seawater• Surface• Lake• Brackish• Processes • Produced• Extracted
• Municipal • Industrial• Agricultural
Energy FlexibilityElectricity, Fossil, Renewable, Waste Heat
ResidualSludge, Brine, Toxins, Bio solids
Water Intake
Water Purification (including
desalination)
Post treatment
and transport
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SelectedRecentEventsIllustratingtheEnergySector’sVulnerabilitytoClimateChange
16Source:U.S.EnergySectorVulnerabilitiestoClimateChangeandExtremeWeather(DOE,2013)
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Data,Modeling,andAnalysisPlatform
IntegratedMulti-System,Multi-ScaleModeling
FrameworkandIAVModeling
Impact,Adaptation,andVulnerabilityStrategicResearchandAnalysis
D M ANational
Regional
Sub-Regional
LayeredEnergyResilienceData-KnowledgeSystem
Regional-ScaleData,Modeling,andAnalysis
TestBeds
Electric Power
Population/Migration
Climate
Land Use/Cover
Water Systems
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EnergyandWaterSystemsIntegration
• CapturingtheBenefitsofIntegratedResourceManagementforWater&ElectricityUtilitiesandtheirPartners(WorkshopwithUniversityofCalifornia-2015)
– Convenedutilitiesandpolicymakersinwaterandelectricity– Identifiedopportunitiesindevelopingsharedsystemsunderstanding;dataand
analytics;andlogisticsandimplementationtomakeprogressinGHGemissionsreduction,resilience,andresourceefficiency
• IntegratedDesalinationandEnergyDesignCompetitionwithIsrael(2016)– Competitionfordesignsfornovelintegratedenergyanddesalinization systems
thatcan:• Flexiblyinterfacewiththemodernelectricgrid.• Vary theiroperations dependingoncurrentconditions.• Economicallyandflexiblybalanceinputandoutputflowsofwater,
electricity,andwastes.• US-EUCollaborationonPower-WaterSystemsModeling(2016workshop)
– Focusedoninnovativepower-waterlinkagesinmodelstoinformpolicyandotherdecision-making
– Identifiednextsteps,includingexploringcouplingbetweenwaterandelectricitysectorsthatincreasesflexibilitytoincreaseresilience
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U.S.-ChinaCleanEnergyResearchCenter:NewEnergyandWaterTrack
InNov2014,PresidentsObamaandXiJinping announcedextensionofCERCfrom2016to2020andexpandedscopetoincludewaterrelatedaspectsofenergyproductionanduse.
• Energy&WaterUSChinaCleanEnergyResearchCenter(CERC)topicareas:
– Waterusereductionatthermoelectricplants– Treatmentandmanagementofnon-traditionalwaters– Improvingsustainablehydropowerdesignandoperation– Climateimpactmodeling,methods,andscenariosto
supportimprovedenergyandwatersystemsunderstanding
– Dataandanalysistoinformplanning,policy,andotherdecisions
• CERCGoals:– SpurInnovationofCleanEnergyTechnologies– DiversifySourcesofEnergySupply– ImproveEnergyEfficiency– AccelerateTransitiontoLow-CarbonFuture– AvoidtheWorstConsequencesofClimateChange
• DOECERCdomesticenergy-water$2.5millionannualinvestmentalignwithandarepartofthelargerenergy-watercrosscutstrategy
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Questions?
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DianaJ.Bauer,Ph.D.OfficeofEnergyPolicyandSystemsAnalysis(EPSA)[email protected](202)287-5773
DOEEnergy-WaterNexusCrosscutTeam:http://www.energy.gov/under-secretary-science-and-energy/water-energy-tech-team
EPSAEnergy-WaterInitiativehttp://energy.gov/epsa/energy-water-nexus