Appliances and Commercial Equipment Standards ProgramProposedTest Procedures forBattery Chargers and External Power SuppliesFriday September 12, 2008Washington, DChttp://www.eere.energy.gov/buildings/appliance_standards/residential/battery_external.htmlU.S. Department of Energy2Welcome• Introductions• Role of the Facilitator• Ground Rules (norms)– Listen as an ally– Use short, succinct statements/keep to the point– Hold sidebar conversations outside the room– Focus on issues, not personalities– One person speak at a time (raise hand to be recognized; stateyour name for the record)– Set cell phones to silent/vibrate• Housekeeping Items• Agenda Review• Opening Remarks3Listening Via the Webcast• The Department is broadcasting this meeting live over theInternet.• DOE is providing the webcast toaccommodate stakeholders thatare unable to attend the public meeting• The web broadcast allows stakeholders to listen in and view theslides of the presentations• However these stakeholders willbe unable to submit commentsor questions via the web broadcast.• Only stakeholders physically in attendance may provide questionsor comments during the public meeting.49:00 – 9:05 am 5 minWelcome9:05 – 9:15 am 10 minOpening Remarks and Agenda Review9:15 – 9:50 am 35 minStakeholder Opening Statements9:50 – 10:30 am 40 minIntroduction, Background and Legal Authority10:30 – 10:45 pm 15 minBattery Chargers Test Procedure:Definitions10:45 – 11:00 am 15 minCoffee Break11:00 – 11:20 am 20 minBattery Chargers Test Procedure:Test MeasurementMorning Agenda511:20 – 11:50 am 30 minExternal Power Supply Test Procedure:Scope and Definitions11:50 – 12:20 pm 30 minExternal Power Supply Test Procedure:Test Apparatus and General Instructions12:20 – 1:20 pm 60 minBreak for Lunch (on your own)1:20 – 2:35 pm 75 minExternal Power Supply Test Procedure:Test Measurement2:35 – 2:50 pm 15 minReporting Requirements2:50 – 3:05 pm 15 minConclusion and Closing Remarks3:05 pmAdjournAfternoon Agenda6Stakeholder Opening Statements• Stakeholders who contacted the Department of Energy to request anopportunity to issue an openingstatement may speak now.7External Power Supply Test ProcedureBattery Charger Test ProcedureBattery Charger Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda5External Power Supply Test Procedure3Reporting Requirements42Background and Legal Authority8Examples of Consumer Products that UseBattery Chargers and External Power SuppliesIntroduction9External Power Supplies and Battery Chargers ArePower Converters that Provide Power Differently•External Power Supplies(EPSs) continuouslyconvert power from mainsand deliver it directly to theload•Battery Chargers(BCs)first deliver energy to thebattery. Then the batterydelivers that energy to theload.Mains120 V AC60 HzBattery Charger(BC)ConsumerProduct(Load)Note: These are conceptualdefinitions. Legal definitions are discussed later.Introduction10Introduction• Present stakeholders with anoverview of the Statute and allDepartmental actions for BC and EPS• Fulfill the Energy Independence and Security Act of 2007 (EISA2007) requirements to establishdefinitions and amend existing testprocedures for BC and EPS tomeasure standby mode and offmode energy consumption by December 2008– Present the Department’s proposed Test Procedures1– Present the Department’s proposed reporting requirements for EPS– Seek oral comments from participants and written comments fromstakeholders on proposed methodologies and requirements– Discuss and respond to specific issues or questions related to theproposalThe Purpose of the Test Procedure Public Meeting1Available for download from DOE’s webpage for BCs and EPSs:http://www.eere.energy.gov/buildings/appliance_standards/residential/battery_external.html11Issues for CommentIssue BoxThe Department welcomes comments, data, andinformation regarding the BCand EPS test procedures.Throughout this presentation specific issues will be brought upfor discussion on slides suchas this. Nonetheless, commentsabout any part of the documentsor presentation are welcome.Introduction12In all correspondence, please refer to the Battery Chargers and ExternalPower Supplies Test Procedure by– Test Procedures for Battery Chargers and External Power Supplies,– Docket NumberEERE-2008-BT-TP-0004,and– Regulatory Identification Number(RIN) 1904-AB75Email:BC&EPS_Test_Proc@ee.doe.govComment period closes October 29, 2008Feedback Is RequestedEspecially on Issues Identified in Handout MaterialsPostal Mail:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program,Mailstop EE-2J1000 Independence Avenue, SWWashington, DC 20585-0121Courier:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, S.W., 6thFloorWashington, DC 20024Telephone: (202) 586-2945Introduction13External Power Supply Test ProcedureBattery Charger Test ProcedureBattery Charger Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda5External Power Supply Test Procedure13Reporting Requirements4Introduction514Summary of Background and Legal Authority Section• Comparison of DOE rulemakings with ENERGY STARspecifications• Review congressional direction and DOE reactions• Present past and future DOE actions• Present a timeline of DOE milestones• Present a summary of the content of the Test Procedure NOPR15• Many stakeholders are familiar with ENERGY STAR voluntaryspecifications, but new to DOE rules• Both processes seek input from stakeholders• The DOE process is more rigorous because of the legal andeconomic consequencesComparison of ENERGY STAR VoluntarySpecifications and DOE Mandatory RegulationsMandatoryVoluntaryParticipationEconomically-justifiedminimum efficiencyTop 25% most efficientproducts in the marketBasis for Levels99Qualifying LevelsTest Procedure9ENERGY STARSpecificationsDepartment of EnergyRules916DOE’s Statutory Authority for BC-EPS Comes fromCongress’s Amendments to EPCA• The Energy Policy Act of2005 (EPACT 2005) amended theEnergy Policy and ConservationAct (EPCA 1975), adding BCsand EPSs to the appliance standards program.• The Energy Independence and Security Act of 2007 (EISA 2007)further amended EPCA resulting in the current rulemaking.Energy Policy andConservation Actof 1975(EPCA)Energy PolicyActof 2005(EPACT)EnergyIndependenceand Security Actof 2007(EISA)Departmentof EnergyBackground and Legal Authority17DOE’s Statutory Authority for BC-EPS Comes fromCongress’s Amendments to EPCA (continued)• Congress and the President pass Public Laws that are codified in the UnitedStates Code (U.S.C.).• DOE publishes proposed rulesand final rulesin the Federal Register (FR),which are codified in the Code of Federal Regulations (CFR).FederalRegister“FR” 

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e“U.S.C.”PublicLaw“Pub. L.”18New Public Laws and Regulations for BC-EPSsAmend Previously Codified Laws and RegulationsRegulations in the Code ofFederal Regulations (CFR)Law in the United StatesCode (U.S.C.)Pending Test Procedure forBCs and EPSs (Dec. 2008)EPACT 2005EISA 2007AmendmentsTest Procedure for BCs andEPSs (Dec. 2006)EPCA 1975OriginalPublication• EPACT and EISA must be viewed in the context of EPCA• Similarly, today’s proposed test procedure must be viewed in the context ofthe previously published test procedure1920122006201120102009200820072013Energy Policy Act of 2005 Initiated BC-EPS Rulemakings• Defined BCs and EPSsEPACT 2005Background and Legal Authority2020122006201120102009200820072013DOE Published Test Procedures for BCs and EPSsAll BCsandEPSs• NOPR published July 20061• Public meeting held September 2006• Final Rule published December 20062• Reserved section in CFR for measurementof BC active mode energy consumption2171 FR 42178271 FR 71340EPACT 2005Background and Legal AuthorityTestProcedures2120122006201120102009200820072013DOE Was Conducting a Determination on BCs and EPSs• Framework documents published Dec. 20061• Scoping workshop held January 2007• Determination was due by August 8, 2008171 FR 78389EPACT 2005Background and Legal AuthorityDeterminationsTestProceduresAll BCsandEPSsAll BCs and EPSs2220122006201120102009200820072013Energy Independence and Security Act of 2007• Altered determination analysis• Defined standby and off modes1• Defined Class A EPSs• Set standard for Class A EPSs1Section 310(3) of EISAamends Section 325 ofEPCA (42 U.S.C. 6295)EISA 2007EPACT 2005Background and Legal AuthorityDeterminationsTestProceduresAll BCsandEPSsAll BCs and EPSs23EISA Defined a “Class A External Power Supply”1A device that:• Converts line voltage AC into lower voltage AC or DC• Converts to only one output voltage at a time• Powers a separate end-use product• Is contained in a separate physical enclosure• Is removable or permanentlyattached to the end-use product• Has nameplate output power≤250 wattsBut not a device that delivers power to a:• Medical device• Battery charger for a product thatis fully or primarily motor operated• Battery charger for a detachablebattery pack, where the battery is:– Contained in a separate enclosure from the product– Intended to be removed or disconnected from the product for recharging1Section 301(a)(1)(B) of EISA amends Section 321of EPCA (42 U.S.C. 6291)Background and Legal AuthorityDE1Slide 23DE1Victor Petrolati, 9/10/200824EISA Set Standards for Class A EPSsThat Became Effective July 1, 200810.5 Watts≤250 WattsNo-Load Mode Maximum ConsumptionNameplate Output0.85> 51 Watts0.5+ 0.09*ln(nameplate_output)1 – 51 Watts0.5*(nameplate_output)< 1 WattActive Mode Required Efficiency(decimal equivalent of a percentage)Nameplate Output1Section 301(a)(1)(B) of EISA amends Section 321of EPCA (42 U.S.C. 6291)Background and Legal Authority2520122006201120102009200820072013DOE Is Proposing Test Procedures for Standby & Off Modes• NOPR published August 15, 20081•Standby and off mode test procedure•Multiple-voltage EPS test procedure• Public meeting held Sept. 12, 2008• Final Rule due by Dec. 31, 2008173 FR 48053EISA 2007EPACT 2005Background and Legal AuthorityDeterminationsTestProceduresAll BCsandEPSsStandbyand offmodesAll BCs and EPSsMultiple-voltage2620122006201120102009200820072013DOE Is Addressing Non-Class A EPSs• Determination due byDecember 19, 2009EISA 2007EPACT 2005Background and Legal AuthorityDeterminationsTestProceduresStandardsAll BCsandEPSsStandbyand offmodesAll BCs and EPSsEPSs outside ofClass AMultiplevoltage2720122006201120102009200820072013DOE Is Developing Standards for BCs and Class A EPSsStandbyand offmodesEISA 2007EPACT 2005Background and Legal AuthorityDeterminationsTestProceduresStandardsAll BCsandEPSsStandbyand offmodesAll BCs and EPSsEPSs outside ofClass AAll BCsClass A EPSsMultiplevoltage• Framework document to be published late 2008• NOPR to follow• Final rule due by July 1, 20112820122006201120102009200820072013EISA Directs DOE to Revisit Standards for Class A EPSsDeterminationsTestProceduresStandardsAll BCsandEPSsStandbyand offmodesAll BCs and EPSsEPSs outside ofClass AAll BCsClass A EPSs• Final rule due byJuly 1, 2015EISA 2007EPACT 2005Background and Legal AuthorityClass A EPSsMultiplevoltage29Timeline of Milestones for BC and EPS RulemakingsOctober 31st, 2010Energy Conservation Standards NOPR IssuedBC Active Mode Test Procedure Issued*July 1st, 2008Standards for Class A EPSs ApplicableJuly 1st, 2011Energy Conservation Standards Final Rule IssuedDeadlineDOE MilestoneDecember 19th, 2009Determination on Non-Class A EPSs IssuedDecember 31st, 2008Standby and Off Mode Test Procedure Issued2010200720082011200620092005

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A p p l i c a b l e...July 1st, 2017Standards ApplicableJuly 1st, 2011Energy Conservation Standards Final Rule PublishedDeadlineDOE MilestoneJuly 1st, 2015Energy Conservation Standards Final Rule PublishedJuly 1st, 2013Standards Applicable for EPSs, possibly BCs31On August 15, 2008, DOE Published a Notice ofProposed Rulemaking for BC-EPS1• On 73 FR at 48054,“Supplementary Information” liststhe headings of all the sections.– Summary (Section II) provides anoverview of the topics discussed– Discussion (Section III) providesdetailed explanation for theproposed changes– Rule Language section providesprecise proposed amendments tothe current test procedure173 FR 4805332On August 15, 2008, DOE Published a Notice ofProposed Rulemaking for BC-EPS (continued)• A table on 73 FR at 48056 and48057 provides a summary ofproposed modifications33On August 15, 2008, DOE Published a Notice ofProposed Rulemaking for BC-EPS (continued)• On 73 FR at 48079, the preambleends and the rule languagesection begins• The preamble explains DOEactions• The rule language is the exactproposed changes to the existingregulation from Dec. 2006– Use of “ * * * ” denotes nochange to previous text• Today, DOE will present andexplain these proposedamendments34Published Materials Are Available on theEERE Appliance Standards Website for BC-EPShttp://www1.eere.energy.gov/buildings/appliance_standards/residential/battery_external.htmlBackground and Legal Authority35External Power Supply Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda51Reporting Requirements2Background and Legal AuthorityBattery Charger Test ProcedureExternal Power Supply Test Procedure436The DOE Battery Charger Test ProcedureConsists of Four PartsQuestion AddressedSectionHow should the tests beconducted?4. Test MeasurementUnder what conditions shouldthe test be conducted?3. Test Apparatus andGeneral InstructionsWhat is the precise meaning ofthe terms used?2. DefinitionsHow does the test procedureapply and to which products?1. ScopeBattery Charger Test ProcedureOverview37Proposed Changes to DOE BC Test ProcedureAppendix Y to Subpart B of 10 CFR 4302006 DOE BC Test Procedure: Proposed BC Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode11. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode1(c) Standby Mode(d) Off ModeBattery Charger Test ProcedureOverview1DOE continues to “Reserve” the ActiveMode Energy Consumption Measurement38Proposed Changes to DOE BC Test ProcedureAppendix Y to Subpart B of 10 CFR 4302006 DOE BC Test Procedure: Proposed BC Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode(c) Standby Mode(d) Off ModeBattery Charger Test ProcedureOverview39• EISA 2007 directs DOE toadopt Standby and Off Mode TestProcedures for BCs and EPSs1– EISA provides definitions for standby mode and off mode2– EISA allows DOE to “amend the definitions ... taking into consideration ...[IEC] 62301 and 62087”• The proposed DOE definitions forstandby mode and off mode addresson-off switches.– EISA and IEC do not directly address BCs with on-off switches.DOE Is Proposing Definitions for BC Standby Mode andOff Mode That Are Different Than Those in EISA 20071Section 310(3) of EISAamends Section 325 of EPCA (42 U.S.C. 6295(u))2Section 2 in Appendix Y to Subpart B of 10 CFR 430Battery Charger Test ProcedureDefinitions40The EISA Definition for Standby Mode Includes Terms ThatMay Be Unclear As Applied to Battery Chargers• EISA 2007 defines “standby mode” as:1“the condition in which an energy-using product –(I) is connected to a main power source;and(II) offers 1 or more of the following user orientedor protective functions:(aa) To facilitate the activation or deactivation of other functions (includingactive mode) by remote switch (included remote control), internal sensor, ortimer,(bb) Continuous functions, including information or status displays(includingclocks) or sensor-based functions.”1Section 310(3) of EISA 2007 (P.L. 110-140) amendsSection 325 of EPCA (42 U.S.C. 6295(u))Battery Charger Test ProcedureDefinitions41• EISA defines standby mode in relationto the product functions, but itis unclear how that applies to battery chargers:– Is a battery indicator light a “user-oriented function”or“status display”?– Is a cooling fan triggered by a thermal sensor a “protective function”or “sensorbased function”?1Section 310(3) of EISA 2007 (P.L. 110-140) amendsSection 325 of EPCA (42 U.S.C. 6295(u))Battery Charger Test ProcedureDefinitions• Battery chargers may operatein modes that would beconsidered different under theEISA 2007 standby modedefinition but are comparablestates for battery chargersSet to OnSet to OnOn-OffSwitchNo LightLightBatteryIndicatorLightEISAModeBCOff ModeBC #2StandbyModeBC #1The EISA Definition for Standby Mode Includes Terms ThatMay Be Unclear As Applied to Battery Chargers (continued)42The IEC Definition for Standby ModeMay Be Unclear When Applied to Battery Chargers• IEC 62301 defines “standby mode” as:1“lowest power consumption modewhich cannot be switched off (influenced) bythe user and that may persist for an indefinite time when an appliance isconnected to the main electricity supply and used in accordance with themanufacturer’s instructions”• IEC 62301 – Annex A notes differenttypes of power switches, but nothow they would applyBattery Charger Test ProcedureDefinitions1“Household Electrical Appliances - Measurement of Standby Power,” IEC 62301, First edition, June 2005.• Battery chargers may operatein modes that would beconsidered different under theEISA 2007 standby modedefinition but are comparablestates for battery chargersNotStandbyModeNoSet to OffBC #2StandbyModeYesSet to OffBC #1IEC ModeConsumesPowerOn-OffSwitchBC43DOE Proposes a Modified Definition for BC Standby Mode• DOE proposes to modify the existing DOE definition of BC“standby modeor no-load mode”:1“the condition in which(1) the battery charger is connected to the main electricity supply;(2) the battery is not connected to the charger; and(3) for battery chargers with manual on-off switches, all switchesare turned on.”(proposed additions to existing text are inblue)Battery Charger Test ProcedureDefinitions173 FR at 48080.Proposed amendment to Section 2(i) in Appendix Y to Subpart B of 10 CFR 43044DOE Proposes a Definition for BC Off Mode• DOE proposes to define BC “off mode” as:1“the condition, applicable only tounits having manual on-off switches,in which the battery charger(1) is connected to the main electricity supply,(2) is not connected to the battery(3) all switches are turned off.”• EISA 2007 defines “off mode” as:2“the condition in which an energy-using product –(I) is connected to a main power source;and(II) is not providing any standby or active mode function.”Battery Charger Test ProcedureDefinitions173 FR at 48080. Proposedamendment to Section 2 in Appendix Y to Subpart B of 10 CFR 4302Section 310(3) of EISA 2007 (P.L. 110-140) amends Section 325 of EPCA (42 U.S.C. 6295(u))45EISA 2007 Requires DOE to Take into ConsiderationIEC 62301 and 62087 When Proposing BC Test Procedures1• DOE considered IEC 62301: “Household electrical appliances –measurement of standby power”– DOE considered the definition of standby mode, but proposed a definitionmore appropriate for BCs• DOE considered IEC 62087: “Methodsof measurement for the powerconsumption of audio, video and related equipment”– Standard focuses only on audio, video, and related equipment that tend toincorporate internal power supplies,– The scope is too narrow for BCs: battery chargers are used with a largevariety of other types of products, such as home appliances and power tools• DOE considered the first editions ofthese standards, which are the “mostcurrent versions”, per EISA requirements1Battery Charger Test ProcedureIEC 62301 and IEC 620871Section 310(3) of EISAamends Section 325 ofEPCA (42 U.S.C. 6295)46Request for CommentItem 1The Department invites stakeholder comments on theproposed revised definitions for both standby mode and off modefor battery chargers.Battery Charger Test ProcedureDefinitions47Proposed Changes to DOE BC Test ProcedureAppendix Y to Subpart B of 10 CFR 4302006 DOE BC Test Procedure: Proposed BC Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Inactive Modes(b) Active Mode(c) Standby Mode(d) Off ModeBattery Charger Test ProcedureOverview48DOE Proposes a Test Method for BC Energy Consumptionin Standby Mode• DOE’s test procedure for standby mode is based on the ENERGYSTAR test procedure1for measuring BC standby mode andmaintenance-mode energy consumption.• The proposed amendment would create a separate measurementof standby mode energy consumption, 4(c) in addition to themeasurements for energy ratio, 4(a)2.1 “Test Methodology for Determining the Energy Performance of Battery Charging Systems,”EPA, December 20052Appendix Y toSubpart B of 10 CFR Part 430Battery Charger Test ProcedureTest Measurement49Battery Charger Test ProcedureTest MeasurementThe Current DOE Battery Charger Test MeasurementConsists of Three Measurements1MainsBattery ChargerEnergyInBatteryAnalyzerEnergyOutEnergy Ratio=dischargeh12standbyh36emaintenancEPP∫∫+MainsBattery ChargerEnergyIn(1) Energy consumption inmaintenance mode(2) Energy consumption instandby mode (no-load mode)(3) Energy delivered by the battery1Section 4(a) of Appendix Y toSubpart B of 10 CFR Part 43050MainsBattery ChargerEnergyInBattery Charger Test ProcedureTest MeasurementDOE Proposes Battery Charger Test Measurementsfor Standby Mode and Off Mode1MainsBattery ChargerEnergyInOnOff• Standby mode– On/off switch set to On– One-hour test period– Connected to power source– Disconnected from battery• If batteries are non-detachable,measure adapter or cradle alone• Off mode– On/off switch set to Off– One-hour test period– Connected to power source– Disconnected from battery• If batteries are non-detachable,measure adapter or cradle alone1Proposed amendment to Sections 4(c) and 4(d) of Appendix Y. 73 FR 48080OnOff51• DOE proposes the following textfor measuring standby mode:1“Conduct a measurement of standbypower consumption while thebattery charger is connected to the power source.Remove the battery from the chargerand record the power (i.e.,watts) consumed as the time seriesintegral of the power consumedover a one-hour test period, divided by the period of measurement.If the battery charger has manualswitches, all must be turned onforthe duration of the standby mode test. ...”DOE Proposes a Test Measurement for BCStandby Mode Energy ConsumptionBattery Charger Test ProcedureTest Measurement1Proposed amendment to Section 4(c) of AppendixY. 73 FR at 4808052• DOE proposes the following text for measuring off mode:1“If the battery charger has manual switches, record a measurementof off mode energy consumption while the battery charger isconnected to the power source.Remove the battery from the chargerand record the power (i.e.,watts) consumed as the time seriesintegral of the power consumedover a one-hour test period, divided by the period of measurement,with all switches turned off.If the battery charger doesnot have manual switches, record that theoff mode measurement is not applicableto this product.”DOE Proposes a Test Method for BCOff Mode Energy ConsumptionBattery Charger Test ProcedureTest Measurement1Proposed amendment to Section 4(d)of Appendix Y. 73 FR at 4808053DOE Explains How Standby Mode and Off Mode WouldApply to Products with Non-Detachable Batteries1Battery Charger Test ProcedureTest Measurement1Proposed amendment to Section 4of Appendix Y. 73 FR at 48080If the product has...• Detachable batteries, measure the BCwithout batteries.• Non-detachable batteries and the BC has acradle or adapter, measure the cradle oradapteralone.• Non-detachable batteries and an integratedBC powered through a detachable ACcord, then power consumption is 0 W.• Non-detachable batteries and an integratedBC powered through a non-detachable ACcord, then standby and off modes are notapplicablesince the battery is connected.54• DOE’s revisions are based on the EPA’s BC test procedure.1• DOE believes the one-hour test would provide sufficiently accurateresults for determining the BC power consumption, but invitesstakeholder comment on the test duration.– A one-hour measurement may not be indicative of the energyconsumption of BCs with low-frequency, pulsed operation in standbymode.– The EPA battery charger test procedure tests standby mode for either anabbreviated one-hour test or a full 12-hour testDOE Proposes a Test Method for BC Standby Modeand Off Mode Energy ConsumptionBattery Charger Test ProcedureTest MeasurementItem 2DOE invites comment on the required duration of1 hour of data collection, and other appropriate durations,including those between 1 hour and 12 hours.1 “Test Methodology for Determining the Energy Performance of Battery Charging Systems,”EPA, December 200555External Power Supply Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda51Reporting Requirements2Background and Legal AuthorityBattery Charger Test Procedure356The DOE External Power Supply Test ProcedureConsists of Four PartsQuestion AddressedSectionHow should the tests beconducted?4. Test MeasurementUnder what conditions shouldthe test be conducted?3. Test Apparatus andGeneral InstructionsWhat is the precise meaning ofthe terms used?2. DefinitionsHow does the test procedureapply and to which products?1. ScopeExternal Power Supply Test ProcedureOverview57DOE Is Proposing Modifications to FulfillRequirements Specified in EISA• EISA 2007 amends EPCA to direct DOE to test powerconsumption of EPSs in standby mode and off mode– DOE is proposing modifications to the existing EPS test procedure tofulfill these directives• EISA 2007 amends EPCA todirect DOE to conduct adetermination analysis for “classes of external power supplies”– DOE is proposing a test procedure for simultaneous multiple-voltageexternal power supplies, which are a type of Non-Class A EPS– DOE is considering similar amendments to the test procedure forsingle-voltage external power suppliesExternal Power Supply Test Procedure58Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview59Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview60DOE Proposes Changes to Broaden theEPS Test Procedure Scope• DOE proposes broadening the scopeto read:“This appendix covers the test requirements used tomeasurethe active mode efficiency and the no-loadenergyconsumption of external power supplies.”1(proposed deletions to existing text are inred)External Power Supply Test ProcedureScope1Proposed amendment to Section 1of Appendix Z. 73 FR at 4808061Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview62DOE Is Proposing Definitions for EPS Standby Mode andOff Mode That Are Different Than Those in EISA 2007External Power Supply Test ProcedureDefinitions• EISA 2007 directs DOE to adopt standby and off mode test proceduresfor BCs and EPSs1– EISA provides definitions for standby mode and off mode2– EISA allows DOE to “amend the definitions ... taking into consideration ...[IEC] 62301 and 62087”• DOE is proposing new definitions for standby mode and off mode.– Proposed definitions resolve ambiguities that would arise from applyingEISA definitions to EPSs with indicator lights.– Proposed definitions explicitly address EPSs with on-off switches.1Section 310(3) of EISAamends Section 325 of EPCA (42 U.S.C. 6295(u))2Section 2 in Appendix Y to Subpart B of 10 CFR 43063EISA Provides Definitions forStandby Mode and Off Mode• EISA 2007 defines “standby mode” as:1“the condition in which an energy-using product –(I) is connected to amain power source; and(II) offers 1 or more ofthe following user orientedor protective functions:(aa) To facilitate the activation or deactivation of other functions (including activemode) by remote switch (included remote control), internal sensor, or timer,(bb) Continuous functions, including information or status displays (including clocks)or sensor-based functions.”• EISA 2007 defines “off mode” as:1“the condition in which an energy-using product –(I) is connected to a mainpower source; and(II) is not providing anystandby or active function.”1Section 310(3) of EISAamends Section 325 ofEPCA (42 U.S.C. 6295(u))External Power Supply Test ProcedureDefinitions64The EISA Definition for Standby Mode and Off Mode MayBe Unclear When Applied to External Power SuppliesExternal Power Supply Test ProcedureDefinitions• The EISA definition leads to ambiguous results when applied toEPSs with on-off switches or indicator lights.• As a result, EPSs in comparable modes would be classified asbeing in different modes under EISA.No LightLightIndicator LightEISA ModeEPS in No-Load ModeOff ModeEPS #2Standby ModeEPS #165DOE Proposes Definitions for EPSStandby Mode and No-Load Mode• DOE is proposing these changes to address EISA requirementsrelating to standby mode and non-Class A EPSs.1• DOE proposes to define EPS “standby mode” as:–“the condition in which the externalpower supply is in no-load mode, andfor external power supplies with on-off switches, all switches are turnedon.”2• DOE proposes to define EPS “no-load mode”:–“the mode of operation when an external power supply is connected tothe main electricity supply and the output is(or ‘all outputs are’ for amultiple-voltage external power supply)not connected to a load(or ‘loads’for a multiple-voltage external power supply).”3(proposed additions to current text inblue)1Section 325 of EPCA (42 U.S.C. 6295)2Proposed amendment to Section 2(s) of Appendix Z. 73 FR at 480813Proposed amendment to Section 2(n)of Appendix Z. 73 FR at 48081External Power Supply Test ProcedureDefinitions66DOE Proposes a Definition for EPS Off Mode• DOE proposes to define EPS “off mode” as:1“the condition, applicable only tounits having manual on-off switches,in which the external power supply(1) is connected to the main electricity supply,(2) the output is not connected to any load(3) all switches are turned off.”1DOE BCEPS Test ProcedureNOPR, published July 2008, 73 FR at 48081External Power Supply Test ProcedureDefinitions67Request for CommentItem 3The Department invites stakeholder comments on theproposed revised definitions for both standby mode and off mode forexternal power supplies.External Power Supply Test ProcedureDefinitions68DOE Proposes Changes toEPS Test Procedure Definitions1• In reviewing Appendix Z, DOEfound a need to modify existingdefinitions and add new definitions.• DOE proposes modifications to existing definitions to promoteconsistency with ones stakeholders currently use.• DOE proposes new additions to the definitions to clarify undefinedand possibly confusing terms.1Proposed amendments to Section 2of Appendix Z. 73 FR 48054External Power Supply Test ProcedureDefinitions69DOE Proposes Modifications to ExistingEPS Test Procedure Definitions• DOE proposes modifications1for consistency with IEEE 1515-20002to the definitions of:–“active-mode efficiency”–“total harmonic distortion” (THD)–“true power factor”• DOE proposes modifications forconsistency with EISA to thedefinition of:1–“active mode”• DOE proposes modifications accommodating multiple-voltage EPSsto the definition of:1–“no-load mode”1Proposed amendments to Section 2of Appendix Z. 73 FR 480542IEEE 1515-2000: “IEEE Recommended Practice for Electronic Power Subsystems: Parameter Definitions, TestConditions, and Test Methods”External Power Supply Test ProcedureDefinitions70• DOE proposes to separately defineterms that are included in thecurrent test procedure definition of “true power factor”:–“active power”1–“apparent power”1• DOE proposes new definitions thatare consistent with IEEE Standard1515-2000 for:–“ambient temperature”1–“unit under test”21Proposed amendments to Section 2 ofAppendix Z.73 FR at 480802Proposed amendments to Section 2 ofAppendix Z. 73 FR at 48081External Power Supply Test ProcedureDefinitionsDOE Proposes New Additions toEPS Test Procedure Definitions71– DOE proposes new definitions toclarify terms in the existingtest procedure:•“instantaneous power”1•“nameplate input frequency”1•“nameplate input voltage”1•“nameplate output current”2•“nameplate output power”2•“nameplate output voltage”2– These definitions are the sameas those in the CEC EPS TestProcedureItem 4The Department invites stakeholder comments on all of theproposed definitions for the external power supply test procedure.External Power Supply Test ProcedureDefinitionsDOE Proposes New Additions toEPS Test Procedure Definitions (continued)1Proposed amendments to Section 2 ofAppendix Z.73 FR at 480802Proposed amendments to Section 2 ofAppendix Z. 73 FR at 4808172• DOE proposes new definitions to address multiple-voltage EPSs:1–“minimum output current”1–“multiple-voltage external power supply”1–“output bus”2• DOE proposes a new definition for a special case of an EPS:1–“switch-selectable single-voltage external power supply”2– This definition would be consistent with definitions used by EPS efficiencyprograms in Australia and New ZealandMains120 V AC60 HzExternalPower Supply(EPS)Vout1Vout2Mains120 V AC60 HzEPSVout1Vout2External Power Supply Test ProcedureDefinitionsDOE Proposes New Additions toEPS Test Procedure Definitions (continued)1Proposed amendments to Section 2 ofAppendix Z.73 FR at 480802Proposed amendments to Section 2 ofAppendix Z. 73 FR at 4808173Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview74IsolationTransformerMainsInputPower MeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterTest Setup From DOE Testing For Determination AnalysisMainsVoltageAdjustorPowerMeterUnitUnderTestCurrentMeter(multiple)VoltageMeter(multiple)Load(multiple)InputOutputTest Apparatus and General InstructionsSample Test Setup75• The CEC IPS test procedure– Prescribes methods for safely dividing the test load between multiplesimultaneous outputs of a multiple-voltage power converter– Is used by the 80 Plus IPS industry standard– Has been adopted by the ENERGY STAR computer efficiency program– References IEC 62301 (EISA requires DOE to consider for standby mode)• The CEC EPS test procedure– Prescribes methods for testing single-voltage EPSs– Contains measurement conditions for standby mode and warm-up times– Has been adopted by ENERGY STAR EPS program– Forms the basis for EPS regulations in Australia, Canada, China, the EU,Israel, Korea, New Zealand, and the United States– References IEC 62301 (EISA requires DOE to consider for standby mode)DOE Reviewed California Energy Commission TestProcedures for Internal and External Power SuppliesExternal Power Supply Test ProcedureMultiple-Voltage76• DOE’s proposed Test Apparatus and General Instructions for multiplevoltage EPSs largely parallels the existing text for single-voltage EPSs.1• DOE’s proposal for multiple-voltageEPSs differs in the following fourways:(1) adopting modified requirements regarding the calibration, uncertainty, andresolution of measurement equipment(2) dropping the requirement that the AC source be capable of supplying 10times the nameplate output power of the unit under test(3) requiring that AC source THD be less than 3%(4) requiring full accounting of losses associated with the test leads• DOE is also considering adopting these requirements as part of thesingle-voltage EPS test procedureTesting Requirements Proposed for Multiple-Voltage EPSs1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test ProcedureTest Apparatus and General InstructionsMultiple-Voltage EPSs77• In the following slides, each of the four proposals is first explained• Next, a side-by-side comparisonshows how the proposed multiplevoltage EPS test procedure contrasts with the current single-voltageEPS test procedureTesting Requirements Proposed for Multiple-Voltage EPSs(continued)1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test ProcedureTest Apparatus and General InstructionsMultiple-Voltage EPSsLanguage in CurrentDOESingle-VoltageEPS TestProcedure““Language in ProposedDOE Multiple-VoltageEPSTest Procedure““78IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterMeasurement-Equipment Calibration RequirementsProposed for Multiple-Voltage EPSs• Measurement equipment must be periodically calibrated againstknown standards to counteract drift of component values andensure measurement accuracy.Test Apparatus and General InstructionsMultiple-Voltage EPSs79Measurement-Equipment Calibration RequirementsProposed for Multiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• The proposed requirement cites standards to which equipment must be calibratedas well as specifying that the equipmentmust be within its calibration period.• “Power measurements shall be madewith a voltmeter and ammeter . . . orpower analyzer . . . , calibrated inaccordance with ANSI/NCSL StandardZ540.1 or ISO/IEC Standard 17025and within the calibration period asspecified by an accompanying datedcalibration certificate or label.”2• “Power measurements shall be madewith a suitably calibrated voltmeter andammeter, or power analyzer.”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808180IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterMeasurement Uncertainty Requirements Proposedfor Multiple-Voltage EPSs• Measurement uncertainty is the total margin of error surroundingthe measurement, based on the accuracy and precision of themeasurement instrumentsTest Apparatus and General InstructionsMultiple-Voltage EPSs81Measurement Uncertainty Requirements Proposedfor Multiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• The adoption of these requirements would make the test procedure consistentwith IEC 62301 and the CEC IPS Test Procedure, as well as engineering practice.• “Measurements of power of 0.5 W orgreater shall be made with anuncertainty of less than or equal to 2percent at the 95-percent confidencelevel. Measurements of power of lessthan 0.5 W shall be made with anuncertainty of less than or equal to 0.01W at the 95-percent confidence level.”2• “. . . measurements of active power of0.5 W or greater shall be made with anuncertainty of≤2%. Measurements ofactive power of less than 0.5 W shallbe made with an uncertainty of≤0.01W.”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808182IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterMeasurement Resolution Requirements Proposed forMultiple-Voltage EPSs• Measurement Resolution is thesmallest change in input that a pieceof measurement equipment canmeasure and/or recordTest Apparatus and General InstructionsMultiple-Voltage EPSs83Measurement Resolution Requirements Proposed forMultiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• The proposed approach is identical to that in the CEC IPS Test Procedure andIEC 62301.• “The power measurement instrumentshall have a resolution of:(A) 0.01 W or betterfor powermeasurements of 10 W or less;(B) 0.1 W or betterfor powermeasurements of greater than 10 W upto 100 W;(C) 1 W or betterfor powermeasurements of greater than 100 W.”2• “The power measurement instrumentshall have a resolution of 0.01W orbetter for active power.”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808184IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterInput AC Source Voltage Requirements Proposed forMultiple-Voltage EPSs• Input AC source voltage refers to theRMS value of the AC source voltagewaveform, compared to the nominal115 VTest Apparatus and General InstructionsMultiple-Voltage EPSs85Input AC Source Voltage Requirements Proposed forMultiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• The proposed approach replaces the power requirement with a guideline whilemaintaining a performance-based requirement• “The input voltage source shall becapable of delivering at least 10 timesthe nameplate input power of the unitunder test where practicable(asrecommendedby IEEE Standard 1515-2000). The input voltage source shallbe deemed inadequate . . . if the inputvoltage varies at any point . . . by morethan ± 1 percent. . .”2• “The input voltage source shall becapable of delivering at least 10 timesthe nameplate input power of the UUT(as is specified in IEEE 1515-2000).”1• “. . . the input to the UUT shall be thespecified voltage ± 1% . . .”Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808186IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterInput AC Source THD Requirements Proposed forMultiple-Voltage EPSs• Input AC source total harmonicdistortion refers to the deviation of theAC source voltage waveform from aperfect sine waveTest Apparatus and General InstructionsMultiple-Voltage EPSs87Input AC Source THD Requirements Proposed forMultiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• The specifications of magnetic AC voltage regulators can at best ensure a THDbelow 3%– Lower THD requires more expensive electronic AC regulators• An upper limit of 3%, versus 2%, will not noticeably affect the measurementaccuracy of active-mode efficiency or no-load mode power consumption• “. . . the THD of the supply voltagewhen supplying the unit under test inthe specified mode shall not exceed 3percent, up to and including the 13thharmonic . . .”2• “. . . the THD of the supply voltagewhen supplying the UUT in thespecified mode shall not exceed 2%,up to and including the 13thharmonic . . .”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808188IsolationTransformerMainsInputPowerMeterEPSunder testOutputCurrentMeterOutputVoltageMeterConstantCurrentLoadInput VoltageAdjusterTest Lead Loss Measurements Proposed forMultiple-Voltage EPSs• Test lead losses are measurementerrors due to voltage drops in thecables (leads) connecting the UUT tothe measurement equipmentTest Apparatus and General InstructionsMultiple-Voltage EPSs89Test Lead Loss Measurements Proposed forMultiple-Voltage EPSs (continued)Test Apparatus and General InstructionsMultiple-Voltage EPSs• This requirement would result in more repeatable efficiency measurements.• This will not add a significant testing burden, since laboratories routinely calculatetest lead losses.• “Appropriate wires must be selected. . . in accordance with Table B.2 in . . .IEEE Standard 1515-2000.”2• “The voltage drop across the conductorcarrying the current must be added toor subtracted from the input and outputvoltage measurements . . .”2• “All leads used in the test set-up shouldbe of large gauge and short length . . .For further guidance, see Table B.2 . . .in IEEE 1515-2000.”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 3 of Appendix Z, which incorporates byreference Section 4 of the CEC EPS Test Procedure2Proposed amendments to Section 3 ofAppendix Z.73 FR at 4808190Impacts of Proposed Departures from the CurrentSingle-Voltage EPS Test ProcedureNoneIncr. of $1000–$5500 (Typ.)IndeterminateAC Source THDIncr. of 10 minper Test (Typ.)NoneNoneTest Lead LossMeasurementNoneIndeterminateDecreaseNoneAC Source VoltageNoneIncr. of $3800–$5700 (Typ.)2Decr. of 0.06%(Max.)1Tiered MeasurementResolutionNoneNoneNone95-percent ConfidenceLevel for UncertaintyNoneNoneNoneEquipment CalibrationImpact onTesting TimeImpact on TestingEquipment CostImpact onUncertaintyProposed ModifiedRequirement1The total measurement uncertainty is still limited to 2%, sothe accuracy of the remainder of the system would need toimprove such that its total uncertainty would be 1.94%.2The numbers cited are for two-and three-voltage EPSs, respectively, based on a $950 increase in multimeter cost.91Request for CommentItem 8The Department invites stakeholder comments on the proposalsrelating to test lead loss measurement, including alternate approaches toensure that lead losses are insignificant or otherwise accounted for in thetest method. In particular, DOE invites comments on the impacts of thisrequirement on measurement accuracy and testing burden.Item 7The Department invites stakeholder comments on the proposalsrelating to AC source THD requirements, and the impact of thesechanges on testing burden or measurement accuracy and repeatability.Item 6The Department invites stakeholder comments on the proposalsrelating to AC source voltage requirements, and the impact of thesechanges on testing burden or measurement accuracy and repeatability.Item 5The Department invites stakeholder comments on the proposalsrelating to calibration, uncertainty, and resolution, and any possibleimpacts of these changes on testing burden and measurement accuracy.Test Apparatus and General InstructionsMultiple-Voltage EPSs92Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview93DOE Uses Certain Terms of Art Clarify Its Actions• “To propose.” DOE puts forth proposed amendments that itintends to implement, accounting for stakeholder comment.• “To consider.” DOE puts forthamendments under considerationthat does not necessarily intend toimplement without significantstakeholder comment.• These terms are deliberately usedthroughout this presentation todistinguish these different courses of action.94DOE Is Considering Changes to the Single-VoltageEPS Test Apparatus and General Instructions Section• DOE is considering, but not currently proposing, adopting changes forsingle-voltage EPSs, similar tothe proposed changes for multiplevoltage EPSs:– (1) to adopt a 3-tiered measurement resolution requirement– (2) to require that the input voltage remain within 1% of 115 volts– (3) to require the AC source THD requirement be less than 3%– (4) to require full accounting of losses associated with the test leads• The proposed changes would make the DOE test procedure notharmonize with the CEC test procedure.• DOE believes incorporating the proposed changes would improve theaccuracy and repeatability of measurement and ease the testingburden on manufacturers in the single-voltage test procedure.Test Apparatus and General InstructionsSingle-Voltage EPSs95Request for CommentTest Apparatus and General InstructionsSingle-Voltage EPSsItem 9The Department invites stakeholder comments on changesunder consideration to the single-voltage external power supply testprocedure.96Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview97DOE Is Proposing Changes to the General Single-VoltageEPS Test Method to Address Standby Mode and Off Mode• For general single-voltage EPSs, DOE believes minor changes tothe existing test method of energy consumption in no-load mode1can satisfy requirements to address standby mode and off mode.• The existing no-load mode test method incorporates by referencethe no-load mode test method from the CEC EPS Test Procedure1– The proposed standby mode test methodadds the requirement that ifthe EPS has an on-off switch, the switch is set to “on”2– The proposed off mode test methodadds the requirement that if theEPS has an on-off switch, the switch is set to “off”2EPS Standby Mode and Off ModeSingle-Voltage EPSs1Section 4 of Appendix Z toSubpart B of 10 CFR Part 4302Proposed amendments to Section 4of Appendix Z. 73 FR 48054Item 10The Department invites stakeholder comments on thetest procedure revisions associated with measuring standbymode and off mode for single-voltage external power supplies.98Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview99DOE Is Proposing a Modified Test Measurement Based onthe Existing Test Measurement for Single-Voltage EPSs• The existing single-voltage EPS test measurement measures averageefficiency in active mode and no-load power consumption in no-loadmode.100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%External Power Supplies Test ProcedureNote: Graph denotes a genericpower-efficiency curve, not corresponding to a specific EPS.– Average efficiency is theaverage of four efficiencies at25%, 50%, 75%, and 100% ofnameplate output current• The existing testmeasurement does notaddress multiple-voltageEPSs100DOE Is Considering a Measurement StabilityRequirement for Single-Voltage EPSsTest Apparatus and General InstructionsSingle-Voltage EPSs• “If the power level does not drift bymore than 1 percentfrom the maximumvalue observed, the unit under test canbe consideredstable . . .”2• If AC input power is not stable, . . .follow the guidelines established byIEC Standard 62301 for measuringaverage power or accumulated energy. . .”2• “[over] a period of 5 minutes . . . If thepower level does not drift by more than5% from the maximum value observed,the UUT can be considered stable . . .”1Language DOE is Considering for theSingle-Voltage EPS Test ProcedureLanguage in Current DOE SingleVoltage EPS Test Procedure1Section 4 of Appendix Z, which incorporates byreference Section 5 of the CEC EPS Test Procedure2Proposed amendments to Section 4 ofAppendix Z.73 FR at 48082101DOE Is Considering a Measurement Stability Requirementfor Single-Voltage EPSs (continued)• DOE Is Proposingthe Same Measurement Stability Requirement forMultiple-Voltage EPSs• This requirement will yield morerepeatable and accurate testresults.• It will also provide testing technicianan alternate approach (consistentwith IEC 62301) for measuringpower consumption when stabilitycannot be achieved.1%tP5 minutesTest Apparatus and General InstructionsSingle-Voltage EPSs102• In active mode, DOE proposes testing switch-selectable single-voltageEPSs at the maximumand minimumvoltage settings• This proposal is consistent with Australian and New Zealand EPSefficiency programs as well as ENERGY STAR (Version 2.0)1DOE Is Proposing That Switch-Selectable Single-VoltageEPSs Be Tested Under Two Voltage Settings in Active Mode100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

EfficiencyVmaxVmin50% 75%Additional Measurement RequirementsSwitch-Selectable Single-Voltage EPSs1“ENERGY STAR® Program Requirements for Single VoltageExternal Ac-Dc and Ac-AcPower Supplies,” taken inSeptember 2008 from: http://www.energystar.gov/ia/partners/prod_development/revisions/downloads/eps_spec_v2.pdf103DOE Is Proposing a Test Measurement for Switch-SelectableSingle-Voltage EPSs in Standby Mode and Off Mode• DOE is proposing a test measurement similar to single-voltageEPSs with added specifications fortesting switch-selectable singlevoltage EPSs in standby mode and off mode1• In addition to the requirements fortesting single-voltage EPSs instandby mode and off mode, switch-selectable EPS would betested twice: at the highest voltage settingand lowest voltagesetting.21Section 4 of Appendix Z toSubpart B of 10 CFR Part 4302Proposed amendments to Section 4of Appendix Z. 73 FR 48054EPS Standby Mode and Off ModeSwitch-Selectable Single-Voltage EPSsMains120 V AC60 HzEPSVout1Vout2104Item 11The Department invites stakeholder comments on theproposed test measurements for switch-selectable single-voltageexternal power supplies. In particular, DOE welcomes comments onits proposal for testing such units at both their highest and lowestvoltage settings.DOE Invites Stakeholder CommentAdditional Measurement RequirementsSwitch-Selectable Single-Voltage EPSs105The Test Procedure Uses the EPS Nameplate toDetermine the Test Conditions• UL 1310 for Class 2 Power Units specifies thatthe unit shall be markedwith the electricalrating, including:– input voltage or input voltage range– input frequency– output current or output power– output voltage for each output• However, not all EPSs may have a nameplatewith this information– For example, some EPSs for HAM radios haveincomplete informationItem 12The Department invites stakeholder comments onapproaches to external powersupplies that do not have allnameplate information needed todetermine test conditions.Test Apparatus and General InstructionsSingle-Voltage EPSs106Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview107DOE Is Proposing a Test Measurement forMultiple-Voltage EPSs in Standby Mode and Off Mode– The proposed standby modetest measurement adds therequirement that all outputs are disconnectedand if the EPS hasan on-off switch, the switch is set to “on”2– The proposed off modetest measurement adds the requirementthat all outputs are disconnectedand if the EPS has an on-offswitch, the switch is set to “off”2EPS Standby Mode and Off ModeMultiple-Voltage EPSs1Section 4 of Appendix Z toSubpart B of 10 CFR Part 4302Proposed amendments to Section 4 ofAppendix Z. 73 FR at 48082• DOE believes the existing test measurement for single-voltage EPSs inno-load mode1can be adopted to address standby mode and off modefor multiple-voltage EPSs.• The existing no-load mode test measurement1incorporates by referencethe no-load mode test measurementfrom the CEC EPS Test Procedure108DOE Invites Stakeholder CommentItem 12The Department invites stakeholder comments on theproposals relating to standby mode and off mode testingrequirements for multiple-voltage external power supplies.EPS Standby Mode and Off ModeMultiple-Voltage EPSs109Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview110Test Measurement Requirements Proposed forMultiple-Voltage EPSs in Active Mode• Summary of DOE’s proposed test measurement for multiplevoltage EPSs in active mode– Test measurement stability requirements– Test measurement for conversion efficiency in active mode• General testing situation• Special case: Adjusting for limits to the minimum output current• Special case: Derating because of an output power limitAdditional Measurement RequirementsMultiple-Voltage EPSsMains120 V AC60 HzExternalPower Supply(EPS)V1V2VN...111DOE Is Proposing a Measurement StabilityRequirement for Multiple-Voltage EPSsTest Apparatus and General InstructionsMultiple-Voltage EPSs• “If the power level does not drift bymore than 1 percentfrom the maximumvalue observed, the unit under test canbe considered stable . . .”2• If AC input power is not stable, . . .follow the guidelines established byIEC Standard 62301 for measuringaverage power or accumulated energy. . .”2• “[over] a period of 5 minutes . . . If thepower level does not drift by more than5% from the maximum value observed,the UUT can be considered stable . . .”1Language in Proposed DOE MultipleVoltage EPS Test ProcedureLanguage in Current DOE Single-Voltage EPS Test Procedure1Section 4 of Appendix Z, which incorporates byreference Section 5 of the CEC EPS Test Procedure2Proposed amendments to Section 4 ofAppendix Z.73 FR at 480821%tP5 minutes112DOE Is Proposing a Measurement Stability Requirement forMultiple-Voltage EPSs (continued)• DOE Is Consideringthe Same Measurement Stability Requirementfor Single-Voltage EPSs• This requirement will yield morerepeatable and accurate testresults.• It will also provide the testingtechnician an alternate approach(consistent with IEC 62301) formeasuring power consumptionwhen stability cannot be achieved.1%tP5 minutesItem 13The Department invites stakeholder comments on theproposals relating to power measurement stability requirementsand their impacts on testing burden and measurement accuracy.Additional Measurement RequirementsMultiple-Voltage EPSs113DOE Is Proposing a Test Measurement for ConversionEfficiency of Multiple-Voltage EPSs• For multiple-voltage EPSs, DOEproposes simultaneously loadingeach output busto the samepercentage of nameplate outputcurrent• The average efficiency is anaverage of measured efficiencyat four loading conditions: 25%,50%, 75%, and 100%outoutIIoutIInPowerOutPowerat Efficiency∑==



# η100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%Additional Measurement RequirementsMultiple-Voltage EPSs114Example 1: Test Measurement Implementation for aGeneral Multiple-Voltage EPSMains120 V AC60 HzExternalPower Supply(EPS)Output Bus #1:Nameplate output current 16.5 AOutput Bus #2:Nameplate output current 1 ANameplate outputpower of the EPSNameplate outputvoltage of bus #1Nameplate outputcurrent of bus #1Nameplate outputvoltage of bus #2Nameplate outputcurrent of bus #2Additional Measurement RequirementsMultiple-Voltage EPSs115Example 1: Test Measurement Implementation for aGeneral Multiple-Voltage EPS (continued)Output Bus #1: 12 V, 16.5 AOutput Bus #2: 5 V, 1 ANameplate Output Power: 203 WExampleLoading condition: 25% of full loadOutput Bus #1: 4.125 AOutput Bus #2: 0.25 A100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%maxoutmaxI%25II%25InPowerOutPower=∑=



# ηAdditional Measurement RequirementsMultiple-Voltage EPSs116DOE Invites Stakeholder CommentItem 14The Department invites stakeholder comments on theproposals relating to the nominal loading conditions of 25%,50%, 75%, and 100%.Additional Measurement RequirementsMultiple-Voltage EPSs117203W5WThere Are Two Special Cases That Would Change theGeneral Testing Conditions of the EPSOutput Bus #1: 12 V, 16.5 AOutput Bus #2: 5 V, 1 ANameplate Output Power: 203 W•The EPS in “Example 1” is not aspecial caseof multiple-output EPS•Minimum output current– None of the output busses haveminimum output currentrequirements•Overloading at 100% current– Nameplate output power limit of203 W– Total bus output power:(12V)(16.5A) + (5V)(1A) = 203W– Total bus output power is equal tothe nameplate output powerAdditional Measurement RequirementsMultiple-Voltage EPSs198WTotal BusOutputPowerNameplateOutputPowerPowerat100%load118• If an output bus has a minimumoutput current greater than 25%of the nameplate current, thebus is tested at the minimumoutput current• This requirement mirrorsprovisions in the CEC IPS TestProcedureDOE Is Proposing a Test Measurement for Multiple-VoltageEPSs with Minimum Output Current Limits100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%IminAdditional Measurement RequirementsMultiple-Voltage EPSs• Minimum output current is the specified lowest current an outputbus will provide within a manufacturer’s specification– This limit ensures that the EPS is stable and reflects how the EPS isused119Example 2: Test Measurement Implementation for aMultiple-Voltage EPS with Minimum Output Current LimitsOutput Bus #1: 5V, 3A (min 0.5A)Output Bus #2: 12V, 0.8A (min 0.25A)Output Bus #3: -12V, 0.25A (min 0.05A)*minimum output currents provided byspecification sheetExampleLoading condition: 25% of full loadOutput Bus #1: 0.75 A (25%)Output Bus #2: 0.25 A(31%)Output Bus #3: 0.0625 A (25%)100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%IminAdditional Measurement RequirementsMultiple-Voltage EPSs120Request for CommentItem 15The Department invites stakeholder comments on theproposals relating to possible adjustments to loading conditionsdue to minimum output current requirements.Additional Measurement RequirementsMultiple-Voltage EPSs121• The total bus output power maybe more than the nameplateoutput power– Bus output power is calculated:Pbus= Vbus* Ibus– Nameplate specifies maximumoutput power for the EPS• In this special case, DOEproposes using a proportionalallocationmethod to “derate” thecurrent at each loading point• This method follows the CECIPS test procedureDOE Is Proposing a Test Measurement for Multiple-VoltageEPSs with Output Power LimitsP3P2P1P3P2P1TotalBusOutputPowerDeratedBusOutputPowerNameplateOutputPowerPowerat100%loadAdditional Measurement RequirementsMultiple-Voltage EPSs122DOE Proposes a Proportional Allocation Method forTesting a Special Case of Multiple-Voltage EPSs• DOE proposes a deratingfactor,D, calculated:where:–Pis nameplate output power–V1, . . . ,VNcorrespond tonameplate output voltages,–I1, . . . ,INcorrespond to outputcurrent ratings• If D≥1, no derating isnecessaryP∑==31NiiiIV∑==NiiiIVPD1P3P2P1TotalBusOutputPowerNameplateOutputPowerPowerat100%loadAdditional Measurement RequirementsMultiple-Voltage EPSs123DOE Proposes a Proportional Allocation Method for Testinga Special Case of Multiple-Voltage EPSs (continued)• For all efficiency tests, the proportional allocation method woulduse the derating factor,D, to scale the output current for alloutput buses– At the highest load condition,D* 100%, the total output power isequal to the nameplate output power100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%D*25%D*50%D*75%D*100%P3P2P1P3P2P1TotalBusOutputPowerDeratedBusOutputPowerNameplateOutputPowerPowerat100%loadAdditional Measurement RequirementsMultiple-Voltage EPSs124Example 3: Test Measurement Implementation for aMultiple-Voltage EPS with Proportional AllocationOutput Bus #1: 5 V, 5 AOutput Bus #2: 12 V, 1.5 ANameplate output power: 27 WTotal bus output power:(5 V)(5 A) + (12 V)(1.5 A) = 43 WD= 27 W / 43 W = 0.63Example:Loading condition:D* 25%0.63 * 25% = 16% of full loadOutput Bus #1: 0.79 A (16%)Output Bus #2: 0.24 A(16%)100%0%20%40%60%80%100%0%25%Percentage of Nameplate Output Current

Efficiency50% 75%D*25%D*50%D*75%D*100%Additional Measurement RequirementsMultiple-Voltage EPSs125Request for CommentItem 16The Department invites stakeholder comments onthe proposals relating to proportional allocation.Additional Measurement RequirementsMultiple-Voltage EPSs126DOE Proposes an Order of Operations to Determinethe Loading Points for Multiple-Voltage EPSs• To evaluate the conversion efficiency of a multiple-voltage EPS inactive mode:– Calculate the derating factor,D, for the EPS• IfD≥1, then no derating is needed. UseD= 1• IfD< 1, then apply the derating factor to the four loading points– Evaluate if the minimum loading point,D* 25% *Iout_bus, is below theminimum rated output current for any individual bus• If so, test the bus at its minimum rated output current– Test the multiple-voltage EPS at the four loading points, adjusted asneeded– Calculate the average efficiency as the average of efficienciesmeasured at the four loading conditions.• For details in the proposed testprocedure, see 73 FR 48053 withaccompanying documents published online.1173 FR at 48082.Additional Measurement RequirementsMultiple-Voltage EPSs127Proposed Changes to DOE EPS Test ProcedureAppendix Z to Subpart B of 10 CFR 4302006 EPS Test Procedure:Proposed EPS Test Procedure:1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement1. Scope2. Definitions3. Test Apparatus andGeneral Instructions4. Test Measurement(a) Single-Voltage EPS(b) Multiple-Voltage EPS(a) Single-Voltage EPS(b) Multiple-Voltage EPS(i) Standby & Off Mode(ii) Measurement Reqs.(i) Standby & Off Mode(ii) Measurement Reqs.External Power Supply Test ProcedureOverview128External Power Supply Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda512Background and Legal AuthorityBattery Charger Test ProcedureExternal Power Supply Test Procedure34Reporting Requirements129Manufacturers Shall Test and Certify the Compliance ofClass A EPSs• EISA established standards for Class A external power suppliesthat took effect on July 1, 2008.1• All manufacturers of covered and regulated products must reportto DOE that their products arein compliance with the applicableenergy conservation standards.2• DOE must now implement the certification and enforcementprocedures that manufacturersof Class A EPSs shall follow.Reporting Requirements142 U.S.C. 6295(u)(3)242 U.S.C. 6296(d)130There Are Five Aspects to Certifying Compliance1. DOE is proposing that manufacturers certify each “basic model” of EPS– DOE is also considering certification by “design family”2. Manufacturers will select units to test using a sampling plan– Proposed in July 20061and is currently being finalized.3. Manufacturers will measure efficiency with the DOE test procedure4. The product must meet the energy-efficiency standard5. Manufacturers certify according to DOE reporting requirements– DOE is currently proposing reporting requirements specific to EPSs.171 FR 42204Reporting Requirements131DOE Is Proposing Reporting Requirements thatFollow the Basic Model Approach• A “basic model” means:1“all units of a given type of covered product (or class thereof)manufactured by one manufacturer and [ . . . ](26) With respect to external power supplies, which have electricalcharacteristics that are essentially identical, and which do not haveany different physical or functional characteristics that affect energyconsumption.”• External power supplies are different basic models, if they differby characteristics such as:– output power– output voltage– output cord length110 CFR 430.2Reporting Requirements132For Each Basic Model, DOE Proposes a Requirement for aCompliance Statement and Certification Report• A “compliance statement” attests that:1– The basic model meets applicable standards,– Application of the test procedure conformed with requirements, and– All information is true, accurate, and complete• A “certification report” details information, such as:2– manufacturer's name – manufacturer’s model number(s)– product class– private labeler's name(s) (if applicable)– product type• DOE is proposing that certification reports specific to externalpower supplies include:– active mode efficiency – no-load mode power consumptionReporting Requirements110 CFR 430.62(3)210 CFR 430.62(4)133For Each Basic Model, DOE Proposes a Requirement for aCompliance Statement and Certification Report (cont.)Reporting Requirements• Sample compliance statementand certification report from73 FR at 48075134• “Design families” consist of EPSs that have:– the same output power rating,– the same input voltage range,– the same fundamental electrical circuit design, but– different output voltages.• Under the design family approach manufacturers would submit:– A compliance statement and certification report for all basic modelsinthe design family, supported by test results for the lowest outputvoltage modeland the highest output voltage modelin the designfamily• Approach based on certification of “model families” accepted bythe ENERGY STAR program1Reporting RequirementsDOE Is Also Considering Alternative ReportingRequirements Based on Design Families1ENERGY STAR® Program Requirements for Single VoltageExternal Ac-Dc and Ac-Ac Power Supplies,” taken inSeptember 2008 from: http://www.energystar.gov/ia/partners/prod_development/revisions/downloads/eps_spec_v2.pdf135DOE Is Also Considering Alternative ReportingRequirements Based on Design Families (continued)• Manufacturers would certify and be responsible for compliance ofall EPSs within the design family• The design family approach doesnot address differences inoutput cord length– Output cords affect efficiency and could vary between EPSs.– Manufacturers attest that all EPSs within the design family meetstandards, regardless of differences in the output cord.• DOE is considering this alternative approach, if it reducesmanufacturer burden while ensuring compliance with standards– This may reduce reporting burden for custom-built EPSs which are asignificant segment of the EPS marketReporting Requirements136Design Family ApproachBasic Model ApproachCertificationReportComplianceStatementCertificationReportComplianceStatementExternal PowerSupply(Output Power andOutput Voltage)Comparison of the “Basic Model” Approach and the“Design Family” Approach24 W,12 V24 W, 15 V24 W, 18 V24 W,24 VReporting Requirements137Request for CommentItem 17The Department seeks comment on whethermanufacturers should be required to certify every basicmodel or whether they shouldbe allowed to form “designfamilies” and only certify thehighest and lowest voltagedesign within each family.Reporting Requirements138External Power Supply Test Procedure123Reporting Requirements4Background and Legal AuthorityIntroductionPublic Meeting Agenda51Reporting Requirements2Background and Legal AuthorityBattery Charger Test ProcedureExternal Power Supply Test Procedure34139In all correspondence, please refer to the Battery Chargers and ExternalPower Supplies Test Procedure by– Test Procedures for Battery Chargers and External Power Supplies,– Docket NumberEERE-2008-BT-TP-0004,and– Regulatory Identification Number(RIN) 1904-AB75Email:BC&EPS_Test_Proc@ee.doe.govComment period closes October 29, 2008How to Submit Written CommentsPostal Mail:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program,Mailstop EE-2J1000 Independence Avenue, SWWashington, DC 20585-0121Courier:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, S.W., 6thFloorWashington, DC 20024Telephone: (202) 586-2945Closing Remarks