BTO’s Building Energy Modeling Program Overview Amir...• Software development kit (SDK) ......
Transcript of BTO’s Building Energy Modeling Program Overview Amir...• Software development kit (SDK) ......
AssetRating
ArchitecturalDesign
CodeCompliance
RetrofitDesign
UtilityIncentives
LEED
ModelPredictiveControl
Policy Analysis
M&V
HVACandControlDesign
AmirRoth,[email protected]
BTO’sBuildingEnergyModelingProgramOverviewBTOPeerReview2017
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BEM– TheUltimate(Meta)ECM
BEMindesign• Potentialtosave0.7quad/yearby2030• Payback<<1yearandsometimes instantaenous• https://energy.gov/eere/buildings/articles/shockingly-short-payback-energy-modeling
AssetRating
ArchitecturalDesign
CodeCompliance
Retrofitdesign
Utility Incentives
LEED
Model PredictiveControl
Policy Analysis
M&V
HVACandcontroldesign
Source:HOK
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LogicModel,MYPP,andGoals
Industry&marketareconfident inBEM®ularlyuse ittodesign&operateenergyefficientbuildings
Characterizedaccuracy:ASHRAE140
State-of-the-artopen-sourceplatform:EnergyPlusSOEPRadiance, THERMOpenStudio
Resources&partnerships:IBPSA,ASHRAE,AIA
Design&operationEUIreduction = %GSFdesigned
and/oroperatedXApp#&productivity
Professional#&productivity
IndustryconfidenceXX
Increasedadoption
3rd-partyapps&services
Improveddeveloper&userproductivity
Moreprofessionals
Moreconsistent, higher-qualitydeliverables
Increasedconfidence
ProgramOutputs MarketOutcomes Uber Outcome
2020goals• BEMfornewconstructionGSF:70%(now:76%),EnergyPlus:5%(7%)• Savingsovercode:EnergyPlus:20%(20%)• 3rd-partyEnergyPlustools:12(8)
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Apps:use-casespecific• Open-sourceorproprietary• Public,private,ormixed funding
BEM industry adapting to (& adopting) open-source!
TheDream-catcher
Platform:general• Commercial-friendly open-source• State-of-the-art capabilities• Commercial-grade development &support• Long-termcommitment• Public funding– transparency&impartialitymatter!• FocusBTOresourceshere
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ThePlatform:EnergyPlus&OpenStudioEnvelope Constructions,loads
schedules,etc.HVACtemplates
orcustomsystemsRun,compare,report,QAQC,
¶metricanalysis
EnergyPlus(energyplus.net)• Industryleadingsimulation engine
OpenStudio(openstudio.net)• Softwaredevelopment kit(SDK)&demoapplication• Measures, AmazonEC2image&moremeasures
High-valuepackage• Greatofferingtomarketpartners(vendors,utilities, etc.)• Helpsstreamline BTO’sownBEMwork• Servesastemplate forotherBTOBEMprojects
Daylighting
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Today’sAgendaProgramupdates(me)• EnergyPlusandOpenStudioupdates– notbeingreviewedthisyear• Programaccomplishments &futuredirections
Reviewsofotherprojectsinportfolio(PIs)• AIA2030DDx– benchmarkandtrackingBEMindesign• Spawn-of-EnergyPlus(SOEP)– next-generation simulation/controls product• Validation&UncertaintyCharacterization – groundtruth• Fenestration: THERM– thermalcharacterizationoffacades• Morefenestration: Radiance – detailed lightingsimulation• NRG&Lucid– helping smallbusinesses developnewcapabilities
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EnergyPlusUpdatesDataCenter• ITE,CRAC,controls
Residential• Ground-coupling, integratedheat-pumps,multiple air-systemsperzone,ductradiation• V8.7(March2017)willbeMVP(minimum viableproduct)forresidential modeling
JSONinput• Firststepinmodernizing input,output&errorhandling
DOASconfigurations
Shadingspeedups
HybridModeling!
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EnergyPlusUpdates– “HybridModeling”BetterName:“SelectiveInverseModeling”or“HybridCalibration”• Conventional heat-balance (HB)equation calculates zonetemperature timeseries• Zonetemperaturetime serieseasytoobtainfromBAS&smartthermostats• InvertHBtotaketemperatureasinput…andcalculate onetraditional inputasoutput• Usefulwhensaid input ishardertoobtainthanzonetemperature,e.g.,infiltration
• Moreaccuratethanconventionalcalibration…andcanbecombinedwithit!• S-H.Lee&T.Hong,“HybridModeling”, Building Simulation2017.
a)Conventionalcalibration
b)Hybridcalibration
Infiltration???
HVACsystem Energyuse???
Zonetemp???Occupancy???
Measuredzonetemp= Infiltration??
HVACsystem Energyuse??
Zonetemp??Occupancy??
Measuredzonetemp
HVACsystem Energyuse???
Infiltration
Occupancy???
Infiltration
HVACsystem Energyuse?
Zonetemp?Occupancy???
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OpenStudioUpdates– OpenStudio2.0
Developer-centricre-factorofOpenStudio1.X• Twonewfileformats:OSW(singlemodelworkflows),OSA(largescaleanalysis)• CommandLine Interface(CLI)– 150MBself-contained OSWexecutionmachine• Meta-CLI– OSA➔ (many)OSWtranslationmachine• Server2.0— elastic,multi-cloud image,runslocallyalso• Modular installer– install onlythepieces youwant• …/articles/finally-major-update-openstudio
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OpenStudioUpdates– PAT2.0
Newfront-end• Qt➔ electron.io (JavaScriptinbrowser)• Localorwebapplications• Nodependences (everysystemhasabrowser)• HowwewilldoUIfromnowon
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openstudio-standards“gem”(rubygems.org/gems/openstudio-standards)• Functionsforcreating&applyingASHRAE90.1constructions, schedules, systems,etc.• Data(insulation levels,equipment efficiencies, etc.)inExcelSpreadsheet
1)CreateDOEPrototypeBuilding• {Type,CZ,Code-Version }è Prototype-Model
2)CreatePerformanceRatingMethodBaselineBuilding• {Type,CZ,Code-Version,Model}è “Appendix G”Baseline-Model• Adaptable toothercodes:CanadaNECB,IndiaECBC,IECC?Title 24?• Reduces tedium,confusion, inconsistency,and“cheating”• Movesefforttowardsmorecreative,constructiveBEMtasks• …/articles/new-openstudio-standards-gem-delivers-one-two-punch
OpenStudioUpdates– OpenStudio-Standards
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ProgramSummary&PlansCorefunding• ET:$4,600k– EnergyPlus,SOEP,ASHRAE140,EmpiricalValidation, FenestrationTools• CBI:$1,500k– OpenStudio• CC:$500k– AIA2030,Scout,“Decision Science”
Startsandstops• TwoBENEFITprojectsending:grey-boxRTUmodels, selective inversemodeling• ThreeBENEFITprojectsstarting:MOISTHERM,OpenBuildingControl, DataCenterToolkit• TwoCBIFOAprojectsstarting:OpenEfficiency,BayREN BRICR
ForwardEmphasis• Control/operations applications➔ EnergyPlus-to-SOEPresourceshift• Connectivitywith(BTO)dataecosystem• Connectivitywithfenestration/envelope modeling ecosystem• District- andurban-scale (LDRD)➔ bettercommunities alliance (BCA)• More,smaller competitive awards• Leveragingexternalresources
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AdditionalReading&Writing
Sincelastpeerreview• EnergyPlus&OpenStudioexceeding 35,000downloadsperversion• Newannual-simulation productsfromAutodesk&Sefaira• Re-launchofsimuwattenergyauditor• LaunchofNEEA/BetterBricks SPARK• CaliforniautilityeTRM movingtoEnergyPlus/OpenStudio• Scoutalpha&beta• Newfellow,JanetReyna([email protected]): large-scalemodeling, data-ecosystem
Resources• Website:…/building-energy-modeling/ (updatedcontent including“BEM101”series)• Blog:…/end-use-breakdown-building-energy-modeling-blog• MYPP:.../downloads/multi-year-program-plan (updates inprogress)• RevisedRD&DRoadmap:comingsoon-ish• Email:[email protected]