1、InternationalStandardISO50002-3Firstedition2025-06Energyaudits一Part3:GuidanceforconductinganenergyauditusingISO50002-1inprocessesAuditsenergetiques一Partie3:Recommandationspourlaconduited,unauditenergetiqueselonISO50002-1dansdesprocessusReferencenumberISO50002-3:2025(en)COPYRIGHTPROTECTEDDOCUMENTISO2
2、025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.Permissioncanberequeste
3、dfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandPageContentsForewordivIntroductionv1 Scope12 Normativereferences.13 Termsanddefiniti
4、ons14 Principlesofenergyauditing25 Performinganenergyaudit2Planning2Openingmeeting3Datacollection3Measurementplan.41.1.1 General41.1.2 Preliminarydataanalysis41.1.3 Datameasurementplan41.1.4 Sitevisits51.1.5 Managementoffieldwork55.7 Analysis55.7.1 General.55.7.2 Analysisofcurrentenergyperformance55
5、7.3 Identificationofenergyperformanceimprovementopportunities65.7.4 Evaluationofenergyperformanceimprovementopportunities.75.8 Reporting75.8.1 General75.8.2 Reportcontent75.9 Closingmeeting76Competenceoftheenergyauditor7Annex A (informative)Datawhichcanbecollected8Annex B (informative)Qualityofmeas
6、urementplan15Annex C (informative)Representativeenergysamplingapproachformulti-siteorganizations17Bibliography19ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthro
7、ughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechni
8、calCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.Thisdocumentwasdraftedi
9、naccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asoftheda
10、teofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.HoweverlImplementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableatWWW.iso.org/patents.ISOshallnotbeheldresponsibleforidentifyingany
11、orallsuchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationofthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISOsadherencetotheWorldTrade
12、Organization(WTO)principlesintheTechnicalBarrierstoTrade(TBT工seeWWW.iso.org/iso/foreword.htmLThisdocumentwaspreparedbyTechnicalCommitteeISO/TC301,Energymanagementandenergysavings.AlistofallpartsintheISO50002seriescanbefoundontheISOwebsite.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheuser
13、snationalstandardsbody.AcompletelistingofthesebodiescanbefoundatWWW.iso.org/members.htmLIntroductionAnenergyauditcanhelpanorganizationidentifyopportunitiestoimproveenergyperformance.Itcanbepartofasite-wideenergymanagementsystem(EnMS).ThisdocumentprovidesguidanceforconductinganISO50002-1-basedenergya
14、uditofprocesses.Therearemanytypesofprocessesinindustryandcommerce.Ingeneral,energyisused: directlybyaprocess(e.g.furnaces,directfireddryers); indirectlybyaprocess(e.g.heatexchange,distillation,extrusion),includingthespecificconditionsofproduction(e.g.start-up,shut-down,productchangeover,cleaning,mai
15、ntenance,laboratoryandproducttransfer); directlybyacommercialorganization,(e.g.mealpreparationprocess,TVbroadcastingprocess,datacentreprocess,coffeeroasting); utilityprocesses(e.g.motordrivensystems(fans,pumps,motors,compressors,etc)steam,hotwater),includingon-sitepowerplants; productorservicechange
16、over,(e.g.changeofproductionfeedorproductionquality,start-up,shutdown,cleaning-in-place,sterilization); otherprocesses(e.g.sterilizationinhospitals,fumecupboards,laboratories).Theenergyauditscoveredbythisdocumentmaybeindependentfromenergyperformancecertification.Energyaudits一Part3:Guidanceforconduct
17、inganenergyauditusingISO50002-1inprocesses1 ScopeThisdocumentgivesguidanceonhowtoapplyISO50002-1tocarryoutenergyauditsofaprocess.Itisintendedtobeusedinconjunctionwith,andissupplementaryto,ISO50002-1.Ifbuildingsareincludedinthescopeoftheenergyaudit,theenergyauditorcanchoosetoapplyISO50002-2.2 Normati
18、vereferencesThefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.ISO50002-llEnergyauditsPart1:Gen
19、eralrequirementswithguidanceforuse3 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO50002-1andthefollowingapply.ISOandIECmaintainterminologydatabasesforuseinstandardizationatthefollowingaddresses: ISOOnlinebrowsingplatform:availableathttps:WWW.iso.org/obp IECElectrope
20、dia:availableathttps:WWW.electropedia.org/1.1auditclientpersonororganizationthatcommissionsanenergyauditNote1toentry:toentry.Theauditclientcanbetheowner,operator,processlicensorand/ortheserviceprovider.1.2processsetofinterrelatedorinteractingactivitiesthatuseinputstodeliveranintendedresultNote1toent
21、ry:toentry.Thiscanincludeoneormoreproductionlines,laboratories,researchcentres,packagingandwarehousesectionswithspecificoperationalconditionsandsitetransportation.Anenergyauditcanbeconductedonselectedprocessesorsystemsinanorganizationorsite(3.4)oronallprocessesinanorganizationorsite.1.3productionpro
22、cessallthesteps,orsomeofthesteps,necessarytomanufactureaproduct,intermediateproduct,by-productorco-product,ortodeliveraserviceNote1toentry:Productionprocesscanincludespecificfacilitiesforhealth,safetyandenvironmentalpollutioncontrol.1.4siteprocesses(3.2)withintheboundaryoftheorganizationNote1toentry
23、Thismayincludeprocessesforpollutiontreatment,energyrecoveryandwastemanagement.1.5utilitygenerationanddistributionofenergynecessaryfortheprocess(3.2)andauxiliary4 PrinciplesofenergyauditingTheprinciplesofISO50002-1apply.5 Performinganenergyaudit5.1 GeneralThegeneralrequirementsofISO50002-1apply.5.2
24、PlanningInprocesses,theauditclientandtheauditeecanbedifferent.Theirrolesandresponsibilitiesintheprocesscanalsobedifferent.Forexample,aprocesscanbeowneroperatedandmaintainedbyasingleorganization.Theprocesscanalsobeowned,operatedandmaintainedbydifferentorganizations.Theenergyauditorshouldobtainaprelim
25、inarydescriptionofthesiteandtheprocessfromtheorganizationorfromasitevisit.NOTE1Thepreliminarycontactcanbebytelephone,webinar,meetingorotherremoteinteractivediscussions.Theenergyauditscopeandboundariesshouldbedefinedandagreedbetweentheenergyauditorandtheauditclient.Ataminimum:a) theauditclientshouldh
26、aveoperationalcontroloftheprocess,orshouldhavetheabilitytoinfluenceandseekthecooperationoftheoperator;b) theenergyauditscopeshouldcoverenergyusewithintheprocessand/ortheinteractionofenergyusewithotherenergyusewithintheprocess.Optimizationofsomeenergyusewhileexcludingotherscangivemisleadingresults.Co
27、nsiderationsfortheauditscopeandboundaryinclude: processesincludedintheenergyaudit;NOTE2Aprocesscanbedefinedasthewholeprocess,partofaprocess,partofasystemoracomponent. whetherornotoutsourcedutilitiesareincludedintheenergyaudit;dependingonthethoroughnessoftheenergyaudit,theneedforadetailedenergyauditt
28、obecarriedoutforspecificprocessesshouldbechecked;inthiscase,referenceshouldbemadetotherelevantstandard.Forenergyusenotdirectlyrelatedtotheprocess(e.g.storing,packaging,logistics,offices,researchcentres,laboratories,transport),theenergyauditorshouldagreewiththeorganizationontheapplicabilityofISO50002
29、2(buildings)orISO50002-3(processes);dependingonthenatureoftheactivities,theauditormayalsorelyonthegeneralframeworkofISO50002-1.Thisdecisionandtheagreedscopeshouldbeclearlystatedinthefinalenergyauditreport(see5.8).ISO50002-1:2025,AnnexA,describesthreedifferenttypesofenergyaudit,eachhavingadifferentl
30、evelofdetailandthoroughness.Thelevelofdetailagreedbythepartieswillhaveanimpacton: application; businessneeds; datacollection; analysis; opportunitiesidentification; opportunitiesevaluation; outputs; thetimeon-site.Foreachauditedprocess,theenergyauditorandorganizationshouldagreeontherelevantpersonnel
31、andtheirroleswhichhaveanimpactonenergyconsumption,andshouldproposeapreliminarylistofdatatobecollected.5.3 OpeningmeetingNoadditionalguidancetoISO50002-1.5.4 DatacollectionThedatacollectioncanbecarriedoutoverseveralstagesduringanenergyaudit.Duringdatacollection,theenergyauditorshould:a) collectandco
32、llateappropriateenergydatathatsupporttheauditobjectives,therequiredauditscopeandthelevelofthoroughnessoftheenergyaudit,including:1) siteinformationincludingbuilding,boundaryandotherrelevantinformation;2) utilityinformation;3) productionprocessinformation;i) productspecification;ii) mainprocessesequi
33、pmentinvolvedintheprocess(drawings,otherrelevanttechnicaldataanddatasheets);iii) currentoperatingconditions(setpoints)ofutilitiesandproductionprocess;iv) otherconsiderationsthatcanimpactenergyperformanceonanon-routinebasis(staticfactors);v) specificconditionsandconstraintsforprocessandenvironment(se
34、curity,pollution,health,etc.);4) informationonenergysourcetypes;b) verifythedataandinformationprovidedbytheorganization(e.g.thepowerorthenumberofpiecesofequipment);c) obtainanymissingdata;d) checkthequalityandplausibilityofthedata,andaskforcorrectionifsignificantmistakesorinaccuraciesareidentified.N
35、OTE1Thecollecteddatacanbebasedoninvoices,contracts,measurements,calculationsfromgivenoperatinghoursandinstalledcapacity(technicalcharacteristics,operationandmaintenancedocuments,meetingwithoperationsandmaintenancepersonnel,etc.NOTE2SeeAnneXAforexamplesofdatathatcanbecollected.5.5 Measurementplan5.5.
36、1 GeneralTheenergyauditorshouldreviewtheinformationcollectedandprovidedbytheorganization.Thisiscarriedouttoensurethattheinformationiscompleteandrepresentativeandtoidentifyfurtherinformationandmeasurementneeds.Ifthedatarequestedarenotavailable,theenergyauditorshoulddefinethemethodtoobtainthenecessary
37、information(e.g.measurements,estimates,modelling).Itisalsopossibletoidentifypreliminaryopportunitiesforenergyperformanceimprovementorareasforinvestigationduringthesitevisit.5.5.2 PreliminarydataanalysisTheenergyauditorshouldcarryoutananalysisofthedatacollectedto:a) undertakeapreliminaryanalysisofthe
38、processenergybalanceonthebasisofenergydata;b) establishtherelevantvariablesandstaticfactors;c) identifysignificantenergyuses(SEUs);d) establishtherelevantenergyperformanceindicators(EnPIs);e) evaluatethedistributionofenergyconsumption(consumptionbreakdown)ifpossible,dependingonthemeasureddataavailab
39、le;f) ifthereissufficientinformation,establishaninitialenergyreference(energybaseline)tobeusedforquantifyingtheimpactsofenergyperformanceimprovementactions(EPIAs);g) planfurtherdatacollectionandmeasurementtobecarriedoutduringfieldwork.TheenergyauditorshoulddevelopapreliminarylistofEPIAs.5.5.3 Datame
40、asurementplanIftherearemissingdataandinformation,dependingonthescopeoftheenergyauditandlevelofthoroughness,theenergyauditorshould:a) requestthemissinginformationfromtheorganization;b) carryoutadditionalmeasurementsduringthesitevisit;c) makeanassumptionaboutthedatabasedonexperienceandcompetence(andpr
41、ovidedetailsintheenergyauditreport).Whereadditionalon-sitemeasurementisdeterminedtobefeasible,ISO50002-1outlinesashortlistofdatathatcanbemeasuredwhileon-site.Theenergyauditorshouldalsoreviewthecollecteddata(andeventualdatameasurement)toseewhethertheenergyauditobjective(三)andauditscopearestillappropr
42、iateandcanbeachieved.Iftheauditobjectiveandauditscopecannotbeachieved,theenergyauditorshoulddiscussandagreeonanalternativewiththeorganization.NOTESeeAnneXBforqualitydatameasurementplans.5.6 Sitevisit5.6.1 SitevisitsNoadditionalguidancetoISO50002-1.5.6.2 ManagementoffieldworkTheenergyauditorshouldins
43、pecttheprocesseswithintheauditscopeinordertoachievetheauditobjective.Thisincludes:a) collectinganymissingdataneededforanalysis;b) confirmingthesuitabilityofenergybaselineifavailable;c) confirmingtheenergyconsumption,energybalance,relevantvariablesandstaticfactorsifanEnMShasalreadybeenintroduced;d) c
44、onfirmingthecurrentoperatingconditions(setpoints)ofutilitiesandproductionprocessesandtheimpactonenergyuseandconsumption;e) collectingrelevantinformationfromidentificationplates,runtimeinformation,interviewswithoperators,etc;f) identifyingEPIAsandrelatedconstraintsandrestrictions.5.7 Analysis5.7.1 Ge
45、neralNoadditionalguidancetoISO50002-1.5.7.2 AnalysisofcurrentenergyperformanceAnalysisofcurrentenergyperformanceisdescribedinISO50002-1.Theenergyauditorprovides:a) abreakdownoftheenergyconsumptionbyenergytype;b) abreakdownoftheenergyconsumptionintoacompanyenergystructure(e.g.mainactivities,auxiliary
46、services,generalservices)toacost-effectivenesslevel;c) abreakdownoftheenergyconsumptionbyprocessesinabsolutenumberandinconsistentenergyunit(iftheactivityistimevarying,itisrecommendedtoestablishtheenergyconsumptionatdifferenttimeperiodsinrelationtotheprocesses);d) ademonstrationofanenergybalancebetwe
47、enenergyconsumptionandenergylossesbasedonanappropriatemethod.EXAMPLEMaterialandenergybalance,Sankeydiagram,steady-statecomputersimulation.Iffeasible,theenergyauditorshoulddeterminetheenergyconsumptionwithoutproductionoractivity(baseload).Theenergybalanceandbreakdownshouldberepresentativeoftheenergyi
48、nputandenergyuse.Itshouldbeclearwhichisbasedonmeasurement,estimationoraccuratecalculationinaccordancewiththelevelofthoroughnessoftheenergyaudit.TheenergyauditorandtheorganizationshoulddiscussandagreeontherelevantEnPIsifrequired.TheanalysisshouldusetheagreedEnPIs.NOTEIfanEnMSexists,theenergyauditorcanusetherelevantEnPIsdetailedintheEnMS.Theenergyauditorshould: calculatethecurrentenergype
