Appliances and Commercial Equipment Standards Progra

Proposed Test Procedures for 

Battery Chargers and External Power Supplie

Friday September 12, 2008

Washington, DC

http://www.eere.energy.gov/buildings/appliance_standards/residential/batter

U.S. Department of Energy

 EERE-2008-BT-TP-0004 COMMENT 16
Welcome

• 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 recognize

your name for the record)

– Set cell phones to silent/vibrate

• Housekeeping Items• Agenda Review• Opening Remarks

 EERE-2008-BT-TP-0004 COMMENT 16
Listening Via the Webcast

• The Department is broadcasting this meeting live over th

Internet. 

• DOE is providing the webcast to accommodate stakehol

are unable to attend the public meeting 

• The web broadcast allows stakeholders to listen in and v

slides of the presentations

• However these stakeholders will be unable to submit com

or questions via the web broadcast. 

• Only stakeholders physically in attendance may provide 

or comments during the public meeting.

 EERE-2008-BT-TP-0004 COMMENT 16
9:00 – 9:05 am 5 min Welcome9:05 – 9:15 am 10 min Opening Remarks and Agenda 9:15 – 9:50 am 35 min Stakeholder Opening Statemen9:50 – 10:30 am 40 min Introduction, Background and L10:30 – 10:45 pm 15 min Battery Chargers Test Procedu

Definitions

10:45 – 11:00 am 15 min Coffee Break11:00 – 11:20 am 20 min Battery Chargers Test Procedu

Test Measurement

Morning Agenda

 EERE-2008-BT-TP-0004 COMMENT 16
11:20 – 11:50 am 30 min External Power Supply Test Pro

Scope and Definitions

11:50 – 12:20 pm 30 min External Power Supply Test Pro

Test Apparatus and General Ins

12:20 – 1:20 pm 60 min Break for Lunch (on your own)1:20 – 2:35 pm 75 min External Power Supply Test Pro

Test Measurement

2:35 – 2:50 pm 15 min Reporting Requirements2:50 – 3:05 pm 15 min Conclusion and Closing Remark3:05 pm Adjourn

Afternoon Agenda

 EERE-2008-BT-TP-0004 COMMENT 16
Stakeholder Opening Statements

• Stakeholders who contacted the Department of Energy to r

opportunity to issue an opening statement may speak now.

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure Battery Charger Test Procedure

Battery Charger Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

External Power Supply Test Procedure

3

Reporting Requirements

4

2 Background and Legal Authority

 EERE-2008-BT-TP-0004 COMMENT 16
Examples of Consumer Products that Us

Battery Chargers and External Power Supp

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supplies and Battery Charge

Power Converters that Provide Power Differ

• External Power Supplies

(EPSs) continuously convert power from mains and deliver it directly to the load

• Battery Chargers (BCs) 

first deliver energy to the battery. Then the battery delivers that energy to the load.

Mains

120 V AC

60 Hz

Battery Charger

(BC)

Note: These are conceptual definitions. Legal definitions are discussed later.

 EERE-2008-BT-TP-0004 COMMENT 16
• Present stakeholders with an overview of the Statute and 

Departmental actions for BC and EPS

• Fulfill the Energy Independence and Security Act of 2007 

2007) requirements to establish definitions and amend eprocedures for BC and EPS to measure standby mode amode energy consumption by December 2008

– Present the Department’s proposed Test Procedures1– Present the Department’s proposed reporting requirements – Seek oral comments from participants and written commen

stakeholders on proposed methodologies and requirement

– Discuss and respond to specific issues or questions related 

proposal

The Purpose of the Test Procedure Public M

1 Available for download from DOE’s webpage for BCs and EPSs: 

http://www.eere.energy.gov/buildings/appliance_standards/residential/battery_external.html

 EERE-2008-BT-TP-0004 COMMENT 16
Issues for Comment

Issue Box The Department welcomes comments, datainformation regarding the BC and EPS test procedures. Throughout this presentation specific issues will be broufor discussion on slides such as this. Nonetheless, comabout any part of the documents or presentation are we

 EERE-2008-BT-TP-0004 COMMENT 16
In all correspondence, please refer to the Battery Chargers and E

Power Supplies Test Procedure by

– Test Procedures for Battery Chargers and External Power Sup– Docket Number EERE-2008-BT-TP-0004, and– Regulatory Identification Number (RIN) 1904-AB75

Email: BC&EPS_Test_Proc@ee.doe.govComment period closes October 29, 2008

Feedback Is Requested 

Especially on Issues Identified in Handout Mate

Postal Mail:

Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program, Mailstop EE-2J1000 Independence Avenue, SWWashington, DC 20585-0121

Courier:

Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Progr950 L’Enfant Plaza, S.W., 6tWashington, DC 20024 Telephone: (202) 586-2945

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure Battery Charger Test Procedure

Battery Charger Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

External Power Supply Test Procedure

13

Reporting Requirements

4

Introduction

5

 EERE-2008-BT-TP-0004 COMMENT 16
Summary of Background and Legal Authority 

• Comparison of DOE rulemakings with ENERGY STAR 

specifications

• 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 

 EERE-2008-BT-TP-0004 COMMENT 16
• Many stakeholders are familiar with ENERGY STAR volu

specifications, but new to DOE rules

• Both processes seek input from stakeholders• The DOE process is more rigorous because of the legal 

economic consequences

Comparison of ENERGY STAR Voluntar

Specifications and DOE Mandatory Regulat

Participation Voluntary Mandator

Economically-ju

minimum effic

Top 25% most efficient 

products in the market Basis for Levels

Qualifying Levels

9

9

Test Procedure

9

ENERGY STAR

Specifications

Department of 

Rules

9

 EERE-2008-BT-TP-0004 COMMENT 16
DOE’s Statutory Authority for BC-EPS Come

Congress’s Amendments to EPCA

• The Energy Policy Act of 2005 (EPACT 2005) amended 

Energy Policy and Conservation Act (EPCA 1975), addinand EPSs to the appliance standards program.

• The Energy Independence and Security Act of 2007 (EIS

further amended EPCA resulting in the current rulemakin

Energy Policy and 

Conservation Act 

of 1975

(EPCA)

Energy Policy 

Act 

of 2005 

(EPACT)

Energy 

Independence 

and Security Act 

of 2007

(EISA)

Dep

of 

Background and 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE’s Statutory Authority for BC-EPS Come

Congress’s Amendments to EPCA (continu

• Congress and the President pass Public Laws that are codified i

States Code (U.S.C.).

• DOE publishes proposed rules and final rules in the Federal Reg

which are codified in the Code of Federal Regulations (CFR).

Federal

Register

“FR”

R

tio

“CFR”

C

“U.S.C.”

Public 

Law

“Pub. L.”

 EERE-2008-BT-TP-0004 COMMENT 16
New Public Laws and Regulations for BC-E

Amend Previously Codified Laws and Regul

Regulations in the 

Federal Regulatio

Law in the United States 

Code (U.S.C.)

Pending Test ProcBCs and EPSs (De

EPACT 2005

EISA 2007

Amendments

Test Procedure for EPSs (Dec. 2006)

Original EPCA 1975Publication

• EPACT and EISA must be viewed in the context of EPCA• Similarly, today’s proposed test procedure must be viewed in the 

the previously published test procedure

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

Energy Policy Act of 2005 Initiated BC-EPS Rule

• Defined BCs and EPSs

EPACT 2005

Background and 

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

DOE Published Test Procedures for BCs and 

All BCs 

and 

EPSs

• NOPR published July 2006 1• Public meeting held September 2006• Final Rule published December 2006 2• Reserved section in CFR for measurement 

of BC active mode energy consumption 2

1 71 FR 42178 2 71 FR 71340 

EPACT 2005

Background and 

TestProcedures

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

DOE Was Conducting a Determination on BCs a

• Framework documents published • Scoping workshop held January 2• Determination was due by August 

1 71 FR 78389 

EPACT 2005

Background and 

DeterminationsTestProcedures

All BCs 

and 

EPSs

All BCs and EPSs

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

Energy Independence and Security Act of 2

• Altered determinatio• Defined standby an• Defined Class A EP• Set standard for Cla

1 Section 310(3) of EISA amends Section 325 of EPCA (42 U.S.C. 6295)

EPACT 2005 EISA 2007

Background and 

DeterminationsTestProcedures

All BCs 

and 

EPSs

All BCs and EPSs

 EERE-2008-BT-TP-0004 COMMENT 16
EISA Defined a “Class A External Power Su

A 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 permanently attached to the end-use prod• Has nameplate output power 

≤ 250 watts

But not a device that delivers power to a: • Medical device• Battery charger for a product that is fully or primarily motor • Battery charger for a detachable battery pack, where the b

– Contained in a separate enclosure from the product– Intended to be removed or disconnected from the product for 

1 Section 301(a)(1)(B) of EISA amends Section 321 of EPCA (42 U.S.C. 6291)

Background and 

DE1

 EERE-2008-BT-TP-0004 COMMENT 16
Slide 23

DE1 Victor Petrolati, 9/10/2008

 EERE-2008-BT-TP-0004 COMMENT 16
EISA Set Standards for Class A EPSs 

That Became Effective July 1, 2008 

1

≤ 250 Watts 0.5 Watts

Nameplate Output No-Load Mode Maximum Cons

> 51 Watts 0.85

1 – 51 Watts 0.5+ 0.09*ln(nameplate_out

< 1 Watt 0.5*(nameplate_output)

Active Mode Required Effic

(decimal equivalent of a perce

Nameplate Output

1 Section 301(a)(1)(B) of EISA amends Section 321 of EPCA (42 U.S.C. 6291)

Background and 

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

DOE Is Proposing Test Procedures for Standby & 

• NOPR published August 

•Standby and off mode •Multiple-voltage EPS te

• Public meeting held Sep• Final Rule due by Dec. 3

1 73 FR 48053

EPACT 2005 EISA 2007

Background and 

DeterminationsTestProcedures

All BCs 

and 

EPSs

Standby 

and off 

modes

All BCs and EPSs

Multiple

-voltage

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

DOE Is Addressing Non-Class A EPSs

• Determination d

December 19, 2

EPACT 2005 EISA 2007

Background and 

DeterminationsTestProceduresStandards

All BCs 

and 

EPSs

Standby 

and off 

modes

All BCs and EPSs EPSs outside of Class A

Multiplevoltage

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

DOE Is Developing Standards for BCs and Clas

Standby 

and off 

modes

EPACT 2005 EISA 2007

Background and 

DeterminationsTestProceduresStandards

All BCs 

and 

EPSs

Standby 

and off 

modes

All BCs and EPSs EPSs outside of Class A

All BCs

Class A EPSs

Multiplevoltage • Framework document to be publishe

• NOPR to follow• Final rule due by July 1, 2011

 EERE-2008-BT-TP-0004 COMMENT 16
2006 2007 2008 2009 2010 2011 

EISA Directs DOE to Revisit Standards for Clas

DeterminationsTestProceduresStandards

All BCs 

and 

EPSs

Standby 

and off 

modes

All BCs and EPSs EPSs outside of Class A

All BCs

Class A EPSs

• Fina

July 

EPACT 2005 EISA 2007

Background and 

C

Multiplevoltage

 EERE-2008-BT-TP-0004 COMMENT 16
Timeline of Milestones for BC and EPS Rulem

October 3

Energy Conservation Standards NOPR Issued BC Active Mode Test Procedure Issued*

July 1st Standards for Class A EPSs Applicable July 1st Energy Conservation Standards Final Rule Issued 

DOE Milestone Dead

December 

Determination on Non-Class A EPSs Issued 

December 

Standby and Off Mode Test Procedure Issued 

2005 2006 2007 2008 2009 2010 2011

EPACT

Test Procedure

Final Rule

Scoping Workshop

Determination on

Non-Class A EPSs

Energy 

Stan

EISA

Standby & Off Mode

Test Procedure

Class A EPS Standards

Background and 

ECS NOPR Published

BC Active Mode TP 

* The Battery Charger Active Mode Test Procedure is under consideration

 EERE-2008-BT-TP-0004 COMMENT 16
Timeline of Milestones for BC and EPS Rulem

(continued)

2011 2012 2013 2014 2015 2016 2017

Energy Conservation

Standards Published

Background and 

ECS Standards

Applicable

Energy Conservation

Standards Published

ECS Standard

Applicable

...

July 1s

Standards Applicable 

July 1s

Energy Conservation Standards Final Rule Published 

DOE Milestone Dead

July 1s

Energy Conservation Standards Final Rule Published 

July 1s

Standards Applicable for EPSs, possibly BCs 

 EERE-2008-BT-TP-0004 COMMENT 16
On August 15, 2008, DOE Published a Notic

Proposed Rulemaking for BC-EPS

1

• On 73 FR at 48054, 

“Supplementary Informthe headings of all the s

– Summary (Section II) 

overview of the topics 

– Discussion (Section II

detailed explanation fproposed changes

– Rule Language sectio

precise proposed amethe current test proce

1 73 FR 48053

 EERE-2008-BT-TP-0004 COMMENT 16
On August 15, 2008, DOE Published a Notic

Proposed Rulemaking for BC-EPS (continu

• A table on 73 FR at 480

48057 provides a summproposed modifications

 EERE-2008-BT-TP-0004 COMMENT 16
On August 15, 2008, DOE Published a Notic

Proposed Rulemaking for BC-EPS (continu

• On 73 FR at 48079, the 

ends and the rule langusection begins

• The preamble explains 

actions

• The rule language is th

proposed changes to thregulation from Dec. 20

– Use of “ * * * ” denot

change to previous te

• Today, DOE will presen

explain these proposed amendments

 EERE-2008-BT-TP-0004 COMMENT 16
Published Materials Are Available on th

EERE Appliance Standards Website for BC

http://www1.eere.energy.gov/buildings/applianstandards/residential/battery_external.html

Background and 

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

1

Reporting Requirements

2 Background and Legal Authority

Battery Charger Test Procedure

4 External Power Supply Test Procedure

 EERE-2008-BT-TP-0004 COMMENT 16
The DOE Battery Charger Test Procedur

Consists of Four Parts

Section Question Addressed

How should the tests be conducted?

4. Test Measurement

Under what conditions should the test be conducted?

3. Test Apparatus and 

General Instructions

What is the precise meaning of the terms used?

2. Definitions

How does the test procedure apply and to which products?

1. Scope

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE BC Test Proced

Appendix Y to Subpart B of 10 CFR 430

2006 DOE BC Test Procedure: Proposed BC Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode 1

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode 1(c) Standby Mode(d) Off Mode

Battery Charger Te

1 DOE continues to “Reserve” the Active Mode Energy Consumption Measurement

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE BC Test Proced

Appendix Y to Subpart B of 10 CFR 430

2006 DOE BC Test Procedure: Proposed BC Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode(c) Standby Mode(d) Off Mode

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
• EISA 2007 directs DOE to adopt Standby and Off Mode Tes

Procedures for BCs and EPSs 1

– EISA provides definitions for standby mode and off mode 2– EISA allows DOE to “amend the definitions ... taking into cons

[IEC] 62301 and 62087”

• The proposed DOE definitions for standby mode and off mo

on-off switches.

– EISA and IEC do not directly address BCs with on-off switches

DOE Is Proposing Definitions for BC Standby M

Off Mode That Are Different Than Those in EIS

1 Section 310(3) of EISA amends Section 325 of EPCA (42 U.S.C. 6295(u))2 Section 2 in Appendix Y to Subpart B of 10 CFR 430

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
The EISA Definition for Standby Mode Includes T

May Be Unclear As Applied to Battery Char

• 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 oriented or protective fun

(aa) To facilitate the activation or deactivation of other function

active mode) by remote switch (included remote control), internal timer, 

(bb) Continuous functions, including information or status disp

clocks) or sensor-based functions.”

1Section 310(3) of EISA 2007 (P.L. 110-140) amends Section 325 of EPCA (42 U.S.C. 6295(u))

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
• EISA defines standby mode in relation to the product functi

is 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” o

based function”?

1Section 310(3) of EISA 2007 (P.L. 110-140) amends Section 325 of EPCA (42 U.S.C. 6295(u))

Battery Charger Te

• Battery chargers may operate 

in modes that would be considered different under the EISA 2007 standby mode definition but are comparable states for battery chargers Set to On

Set to On

On-Off 

Switch 

No Ligh

Light

Battery 

Indicato

Light

BC

BC #2 

BC #1

The EISA Definition for Standby Mode Includes T

May Be Unclear As Applied to Battery Chargers (c

 EERE-2008-BT-TP-0004 COMMENT 16
The IEC Definition for Standby Mode 

May Be Unclear When Applied to Battery Ch

• IEC 62301 defines “standby mode” as: 1

“lowest power consumption mode which cannot be switched off (i

the user and that may persist for an indefinite time when an appliaconnected to the main electricity supply and used in accordance wmanufacturer’s instructions”

• IEC 62301 – Annex A notes different types of power switch

how they would apply

Battery Charger Te

1 “Household Electrical Appliances - Measurement of Standby Power,” IEC 62301, First edition, June 2

• Battery chargers may operate 

in modes that would be considered different under the EISA 2007 standby mode definition but are comparable states for battery chargers

BC #2 Set to Off NoBC #1 Set to Off Yes

Consum

Power On-Off Switch BC

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Modified Definition for BC Stan

• DOE proposes to modify the existing DOE definition of BC 

“standby mode or no-load mode”: 1

“the condition in which

(1) the battery charger is connected to the main electricit(2) the battery is not connected to the charger; and (3) for battery chargers with manual on-off switches, all s

are turned on.

”

(proposed additions to existing text are in blue)

Battery Charger Te

1 73 FR at 48080. Proposed amendment to Section 2(i) in Appendix Y to Subpart B of 10 CFR 430

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Definition for BC Off Mo

• DOE proposes to define BC “off mode” as: 1

“the condition, applicable only to units having manual on-o

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 Te

1 73 FR at 48080. Proposed amendment to Section 2 in Appendix Y to Subpart B of 10 CFR 430 2 Section 310(3) of EISA 2007 (P.L. 110-140) amends Section 325 of EPCA (42 U.S.C. 6295(u))

 EERE-2008-BT-TP-0004 COMMENT 16
EISA 2007 Requires DOE to Take into Consid

IEC 62301 and 62087 When Proposing BC Test Pr

• DOE considered IEC 62301: “Household electrical appliance

measurement of standby power”

– DOE considered the definition of standby mode, but proposed 

more appropriate for BCs

• DOE considered IEC 62087: “Methods of measurement for t

consumption of audio, video and related equipment”

– Standard focuses only on audio, video, and related equipment 

incorporate internal power supplies, 

– The scope is too narrow for BCs: battery chargers are used wit

variety of other types of products, such as home appliances an

• DOE considered the first editions of these standards, which 

current versions”, per EISA requirements 1

Battery Charger Te

IEC 62301 a

1 Section 310(3) of EISA amends Section 325 of EPCA (42 U.S.C. 6295)

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 1 The Department invites stakeholder comments o

proposed revised definitions for both standby mode and for battery chargers.

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE BC Test Proced

Appendix Y to Subpart B of 10 CFR 430

2006 DOE BC Test Procedure: Proposed BC Test Proced

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Inactive Modes(b) Active Mode(c) Standby Mode(d) Off Mode

Battery Charger Te

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Test Method for BC Energy Con

in Standby Mode

• DOE’s test procedure for standby mode is based on the 

STAR test procedure1 for measuring BC standby mode a

maintenance-mode energy consumption.

• The proposed amendment would create a separate meas

of standby mode energy consumption, 4(c) in addition to measurements for energy ratio, 4(a) 

2.

1 “Test Methodology for Determining the Energy Performance of Battery Charging Systems,” EPA, Decem2 Appendix Y to Subpart B of 10 CFR Part 430

Battery Charger Te

Test M

 EERE-2008-BT-TP-0004 COMMENT 16
Battery Charger Te

Test M

The Current DOE Battery Charger Test Measu

Consists of Three Measurements 1

Mains Battery Charger

Energy

In

Battery 

Analyzer

Energy

Out

Energy Ratio = 

discharge

h12

standby

h36

maintenanc e

E

P P∫∫ +

Mains Ba

Energy

In

(1) Energy consumption in maintenance mode

(2) Energy consumpstandby mode (no-l

(3) Energy delivered by the battery

1 Section 4(a) of Appendix Y to Subpart B of 10 CFR Part 430

 EERE-2008-BT-TP-0004 COMMENT 16
Mains

Energy B

In

Battery Charger Te

Test M

DOE Proposes Battery Charger Test Measure

for Standby Mode and Off Mode 1

Mains

Energy B

In 

• 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 alone

1 Proposed amendment to Sections 4(c) and 4(d) of Appendix Y. 73 FR 48080

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE proposes the following text for measuring standby mo

“Conduct a measurement of standby power consumption wbattery charger is connected to the power source. 

Remove the battery from the charger and record the power 

watts) consumed as the time series integral of the power coover a one-hour test period, divided by the period of measu

If the battery charger has manual switches, all must be turn

the duration of the standby mode test. ...”

DOE Proposes a Test Measurement for B

Standby Mode Energy Consumption

Battery Charger Te

Test M

1 Proposed amendment to Section 4(c) of Appendix Y. 73 FR at 48080

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE proposes the following text for measuring off mode: 1

“If the battery charger has manual switches, record a measof off mode energy consumption while the battery charger is connected to the power source. 

Remove the battery from the charger and record the power 

watts) consumed as the time series integral of the power coover a one-hour test period, divided by the period of measu

with all switches turned off. 

If the battery charger does not have manual switches, recor

off mode measurement is not applicable to this product.”

DOE Proposes a Test Method for BC 

Off Mode Energy Consumption

Battery Charger Te

Test M

1 Proposed amendment to Section 4(d) of Appendix Y. 73 FR at 48080 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Explains How Standby Mode and Off Mod

Apply to Products with Non-Detachable Batt

Battery Charger Te

Test M

1 Proposed amendment to Section 4 of Appendix Y. 73 FR at 48080

If the product has...• Detachable batteries, measure the BC 

without batteries.

• Non-detachable batteries and the BC has a 

cradle or adapter, measure the cradle or 

adapter alone.

• Non-detachable batteries and an integrated 

BC powered through a detachable AC cord, then power consumption is 0 W.

• Non-detachable batteries and an integrated 

BC powered through a non-detachable AC cord, then standby and off modes are not 

applicable since the battery is connected.

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE’s revisions are based on the EPA’s BC test procedure• DOE believes the one-hour test would provide sufficiently a

results for determining the BC power consumption, but invistakeholder comment on the test duration.

– A one-hour measurement may not be indicative of the energy 

consumption of BCs with low-frequency, pulsed operation in s

mode.

– The EPA battery charger test procedure tests standby mode f

abbreviated one-hour test or a full 12-hour test

DOE Proposes a Test Method for BC Standby 

and Off Mode Energy Consumption

Battery Charger Te

Test M

Item 2 DOE invites comment on the required duration o1 hour of data collection, and other appropriate durationincluding those between 1 hour and 12 hours.

1 “Test Methodology for Determining the Energy Performance of Battery Charging Systems,” EPA, Decem

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

1

Reporting Requirements

2 Background and Legal Authority

3 Battery Charger Test Procedure

 EERE-2008-BT-TP-0004 COMMENT 16
The DOE External Power Supply Test Proce

Consists of Four Parts

Section Question Addressed

How should the tests be conducted?

4. Test Measurement

Under what conditions should the test be conducted?

3. Test Apparatus and General Instructions

What is the precise meaning of the terms used?

2. Definitions

How does the test procedure apply and to which products?

1. Scope

External Power Supply Te

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing Modifications to Fulfi

Requirements Specified in EISA

• EISA 2007 amends EPCA to direct DOE to test power 

consumption of EPSs in standby mode and off mode

– DOE is proposing modifications to the existing EPS test pr

fulfill these directives

• EISA 2007 amends EPCA to direct DOE to conduct a 

determination analysis for “classes of external power sup

– DOE is proposing a test procedure for simultaneous multip

external power supplies, which are a type of Non-Class A E

– DOE is considering similar amendments to the test proced

single-voltage external power supplies

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and 

General Instruction

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Of(ii) Measuremen(i) Standby & Of(ii) Measuremen

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes Changes to Broaden the 

EPS Test Procedure Scope

• DOE proposes broadening the scope to read :

“This appendix covers the test requirements used to measure the active mode efficiency and the no-load enconsumption of external power supplies.”1

(proposed deletions to existing text are in red)

External Power Supply 

1 Proposed amendment to Section 1 of Appendix Z. 73 FR at 48080

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing Definitions for EPS Standby M

Off Mode That Are Different Than Those in EIS

External Power Supply 

• EISA 2007 directs DOE to adopt standby and off mode test 

for BCs and EPSs 1

– EISA provides definitions for standby mode and off mode 

2

– EISA allows DOE to “amend the definitions ... taking into cons

[IEC] 62301 and 62087”

• DOE is proposing new definitions for standby mode and off 

– Proposed definitions resolve ambiguities that would arise from 

EISA definitions to EPSs with indicator lights.

– Proposed definitions explicitly address EPSs with on-off switch

1 Section 310(3) of EISA amends Section 325 of EPCA (42 U.S.C. 6295(u)) 2 Section 2 in Appendix Y to Subpart B of 10 CFR 430

 EERE-2008-BT-TP-0004 COMMENT 16
EISA Provides Definitions for

Standby Mode and Off Mode

• 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 oriented or protective functions:

(aa) To facilitate the activation or deactivation of other functions (inc

mode) by remote switch (included remote control), internal sens

(bb) Continuous functions, including information or status displays (i

or sensor-based functions.”

• EISA 2007 defines “off mode” as: 1

“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 function.”

1Section 310(3) of EISA amends Section 325 of EPCA (42 U.S.C. 6295(u))

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
The EISA Definition for Standby Mode and Off M

Be Unclear When Applied to External Power S

External Power Supply 

• The EISA definition leads to ambiguous results when applie

EPSs with on-off switches or indicator lights.

• As a result, EPSs in comparable modes would be classified 

being in different modes under EISA.

No Light

Light

Indicator Light EISA Mode EPS in No- Load Mode

EPS #2 Off ModeEPS #1 Standby Mode

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes Definitions for EPS 

Standby Mode and No-Load Mode

• DOE is proposing these changes to address EISA require

relating to standby mode and non-Class A EPSs. 1

• DOE proposes to define EPS “standby mode” as:

– “the condition in which the external power supply is in no-loa

for external power supplies with on-off switches, all switches on.”

2

• DOE proposes to define EPS “no-load mode”:

– “the mode of operation when an external power supply is co

the main electricity supply and the output is (or ‘all outputs amultiple-voltage external power supply) not connected to a lo

for a multiple-voltage external power supply).”

3

(proposed additions to current text in blue)

1 Section 325 of EPCA (42 U.S.C. 6295)2 Proposed amendment to Section 2(s) of Appendix Z. 73 FR at 48081 3 Proposed amendment to Section 2(n) of Appendix Z. 73 FR at 48081

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Definition for EPS Off Mo

• DOE proposes to define EPS “off mode” as: 1

“the condition, applicable only to units having manual on-o

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.”

1 DOE BCEPS Test Procedure NOPR, published July 2008, 73 FR at 48081

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 3 The Department invites stakeholder comments on 

proposed revised definitions for both standby mode and off external power supplies.

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes Changes to 

EPS Test Procedure Definitions 

1

• In reviewing Appendix Z, DOE found a need to modify ex

definitions and add new definitions.

• DOE proposes modifications to existing definitions to pro

consistency with ones stakeholders currently use. 

• DOE proposes new additions to the definitions to clarify 

and possibly confusing terms. 

1 Proposed amendments to Section 2 of Appendix Z. 73 FR 48054

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes Modifications to Existing

EPS Test Procedure Definitions

• DOE proposes modifications1 for consistency with IEEE 

to the definitions of:

– “active-mode efficiency”– “total harmonic distortion” (THD)– “true power factor”

• DOE proposes modifications for consistency with EISA t

definition of:1

– “active mode”

• DOE proposes modifications accommodating multiple-vo

to the definition of:1

– “no-load mode”

1 Proposed amendments to Section 2 of Appendix Z. 73 FR 48054 2 IEEE 1515-2000: “IEEE Recommended Practice for Electronic Power Subsystems: Parameter Defi

Conditions, and Test Methods”

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE proposes to separately define terms that are includ

current test procedure definition of “true power factor”:

– “active power” 1– “apparent power” 1

• DOE proposes new definitions that are consistent with IE

1515-2000 for:

– “ambient temperature” 1– “unit under test”

2

1 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48080 2 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48081

External Power Supply 

DOE Proposes New Additions to 

EPS Test Procedure Definitions 

 EERE-2008-BT-TP-0004 COMMENT 16
– DOE proposes new definitions to clarify terms in the existin

test 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 same as those in the CEC EPS T

Procedure

Item 4 The Department invites stakeholder comments on 

proposed definitions for the external power supply test proc

External Power Supply 

DOE Proposes New Additions to 

EPS Test Procedure Definitions (continue

1 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48080 2 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE proposes new definitions to address multiple-voltage EPS

– “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 ef

programs in Australia and New Zealand

Mains

120 V AC

60 Hz

External

Power Supply

(EPS)

Vout1

Vout2

Mains

120 V AC

60 Hz

EPS

Vout1

Vout2

External Power Supply 

DOE Proposes New Additions to 

EPS Test Procedure Definitions (continue

1 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48080 2 Proposed amendments to Section 2 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

Input Voltage

Adjuster

Test Setup From DOE Testing For Determination 

Mains Voltage Adjustor

Power

Meter

Unit

Under

Test

Current 

Meter

(multiple)

Voltage 

Meter

(multiple)

Input Output

Test Apparatus and Gene

Sam

 EERE-2008-BT-TP-0004 COMMENT 16
• The CEC IPS test procedure

– Prescribes methods for safely dividing the test load between 

simultaneous outputs of a multiple-voltage power converter

– Is used by the 80 Plus IPS industry standard– Has been adopted by the ENERGY STAR computer efficienc– References IEC 62301 (EISA requires DOE to consider for st

• The CEC EPS test procedure

– Prescribes methods for testing single-voltage EPSs– Contains measurement conditions for standby mode and war– Has been adopted by ENERGY STAR EPS program– Forms the basis for EPS regulations in Australia, Canada, Ch

Israel, Korea, New Zealand, and the United States

– References IEC 62301 (EISA requires DOE to consider for st

DOE Reviewed California Energy Commissio

Procedures for Internal and External Power S

External Power Supply 

M

 EERE-2008-BT-TP-0004 COMMENT 16
• DOE’s proposed Test Apparatus and General Instructions fo

voltage EPSs largely parallels the existing text for single-vol

• DOE’s proposal for multiple-voltage EPSs differs in the follow

ways:

(1) adopting modified requirements regarding the calibration, unce

resolution of measurement equipment

(2) dropping the requirement that the AC source be capable of su

times 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 lead

• DOE is also considering adopting these requirements as pa

single-voltage EPS test procedure

Testing Requirements Proposed for Multiple-Vo

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
• In the following slides, each of the four proposals is first exp• Next, a side-by-side comparison shows how the proposed m

voltage EPS test procedure contrasts with the current single

EPS test procedure

Testing Requirements Proposed for Multiple-Vo

(continued)

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure

Test Apparatus and Gene

Multipl

Language in Current DOE 

Single-Voltage EPS Test 

Procedure“

“

Language in ProposeDOE Multiple-Voltage 

Test Procedure“

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Measurement-Equipment Calibration Require

Proposed for Multiple-Voltage EPSs

• Measurement equipment must be periodically calibrated aga

known standards to counteract drift of component values an

ensure measurement accuracy.

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Measurement-Equipment Calibration Require

Proposed for Multiple-Voltage EPSs (contin

Test Apparatus and Gene

Multipl

• The proposed requirement cites standards to which equipment mus

as well as specifying that the equipment must be within its calibratio

• “Power measurements s

with a voltmeter and ammpower analyzer . . . , caliaccordance with ANSI/NZ540.1 or ISO/IEC Standand within the calibration specified by an accompacalibration certificate or la

• “Power measurements shall be made 

with a suitably calibrated voltmeter and ammeter, or power analyzer.” 1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Measurement Uncertainty Requirements Pro

for Multiple-Voltage EPSs

• Measurement uncertainty is the total margin of error surroun

the measurement, based on the accuracy and precision of thmeasurement instruments

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Measurement Uncertainty Requirements Pro

for Multiple-Voltage EPSs (continued)

Test Apparatus and Gene

Multipl

• The adoption of these requirements would make the test procedure 

with IEC 62301 and the CEC IPS Test Procedure, as well as engine

• “Measurements of power 

greater shall be made wiuncertainty of less than opercent at the 95-percen

level. Measurements of pthan 0.5 W shall be made uncertainty of less than oW at the 95-percent conf

• “. . . measurements of active power of 

0.5 W or greater shall be made with an uncertainty of 

≤ 2%. Measurements of 

active power of less than 0.5 W shall be made with an uncertainty of 

≤ 0.01 

W.” 1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Measurement Resolution Requirements Propo

Multiple-Voltage EPSs

• Measurement Resolution is the 

smallest change in input that a piece of measurement equipment can measure and/or record

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Measurement Resolution Requirements Propo

Multiple-Voltage EPSs (continued)

Test Apparatus and Gene

Multipl

• The proposed approach is identical to that in the CEC IPS Test Pro

IEC 62301.

• “The power measuremen

shall have a resolution of(A) 0.01 W or better for p

measurements of 10 W o

(B) 0.1 W or better for po

measurements of greate

to 100 W;(C) 1 W or better for pow

measurements of greate

• “The power measurement instrument 

shall have a resolution of 0.01W or better for active power.” 1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Input AC Source Voltage Requirements Propo

Multiple-Voltage EPSs

• Input AC source voltage refers to the 

RMS value of the AC source voltage waveform, compared to the nominal 115 V

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Input AC Source Voltage Requirements Propo

Multiple-Voltage EPSs (continued)

Test Apparatus and Gene

Multipl

• The proposed approach replaces the power requirement with a guid

maintaining a performance-based requirement

• “The input voltage source 

capable of delivering at le

the nameplate input powunder test where practica

recommended by IEEE S

2000). The input voltage be deemed inadequate . voltage varies at any poithan ± 1 percent . . .”

2

• “The input voltage source shall be 

capable of delivering at least 10 times

the nameplate input power of the UUT (as is specified in IEEE 1515-2000).” 1

• “. . . the input to the UUT shall be the 

specified voltage ± 1% . . .”

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Input AC Source THD Requirements Propos

Multiple-Voltage EPSs

• Input AC source total harmonic 

distortion refers to the deviation of the AC source voltage waveform from a perfect sine wave

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Input AC Source THD Requirements Propos

Multiple-Voltage EPSs (continued)

Test Apparatus and Gene

Multipl

• The specifications of magnetic AC voltage regulators can at best en

below 3%

– Lower THD requires more expensive electronic AC regulators

• An upper limit of 3%, versus 2%, will not noticeably affect the meas

accuracy of active-mode efficiency or no-load mode power consump

• “. . . the THD of the supp

when supplying the unit uthe specified mode shall 

percent, up to and includ

harmonic . . .”

2

• “. . . the THD of the supply voltage 

when supplying the UUT in the specified mode shall not exceed 2%, up to and including the 13th harmonic . . .” 1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Isolation 

Transformer

Mains

Input 

Power 

Meter

EPS 

under test

Output 

Current 

Meter

Output 

Voltage 

Meter

C

C

Input Voltage

Adjuster

Test Lead Loss Measurements Proposed 

Multiple-Voltage EPSs

• Test lead losses are measurement 

errors due to voltage drops in the cables (leads) connecting the UUT to the measurement equipment

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Test Lead Loss Measurements Proposed 

Multiple-Voltage EPSs (continued)

Test Apparatus and Gene

Multipl

• This requirement would result in more repeatable efficiency measur• This will not add a significant testing burden, since laboratories rout

test lead losses.

• “Appropriate wires must 

. . . in accordance with TIEEE Standard 1515-200

• “The voltage drop across 

carrying the current must or subtracted from the involtage measurements . 

• “All leads used in the test set-up should 

be of large gauge and short length . . . For further guidance, see Table B.2 . . . in IEEE 1515-2000.” 1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 3 of Appendix Z, which incorporates by reference Section 4 of the CEC EPS Test Procedure2 Proposed amendments to Section 3 of Appendix Z. 73 FR at 48081

 EERE-2008-BT-TP-0004 COMMENT 16
Impacts of Proposed Departures from the Cu

Single-Voltage EPS Test Procedure

Incr. of $1000– 

$5500 (Typ.)

AC Source THD Indeterminate

Incr

per T

Test Lead Loss None None

Measurement

Indeterminate 

Decrease

AC Source Voltage None

Incr. of $3800– 

$5700 (Typ.) 

2

Decr. of 0.06% 

(Max.) 1

Tiered Measurement 

Resolution

95-percent Confidence None None 

Level for Uncertainty

Equipment Calibration None None 

Im

Tes

Impact on Testing 

Equipment Cost

Impact on 

Uncertainty

Proposed Modified 

Requirement

1 The total measurement uncertainty is still limited to 2%, so the accuracy of the remainder of the system 

improve such that its total uncertainty would be 1.94%.

2 The numbers cited are for two- and three-voltage EPSs, respectively, based on a $950 increase in mu

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 8 The Department invites stakeholder comments on the 

relating to test lead loss measurement, including alternate appensure that lead losses are insignificant or otherwise accounttest method. In particular, DOE invites comments on the imprequirement on measurement accuracy and testing burden.

Item 7 The Department invites stakeholder comments on the 

relating to AC source THD requirements, and the impact of thchanges on testing burden or measurement accuracy and rep

Item 6 The Department invites stakeholder comments on the 

relating to AC source voltage requirements, and the impact of changes on testing burden or measurement accuracy and rep

Item 5 The Department invites stakeholder comments on the 

relating to calibration, uncertainty, and resolution, and any poimpacts of these changes on testing burden and measuremen

Test Apparatus and Gene

Multipl

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Uses Certain Terms of Art Clarify Its Ac

• “To propose.” DOE puts forth proposed amendments th

intends to implement, accounting for stakeholder comme

• “To consider.” DOE puts forth amendments under consid

that does not necessarily intend to implement without sig

stakeholder comment.

• These terms are deliberately used throughout this prese

distinguish these different courses of action.

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Considering Changes to the Single-V

EPS Test Apparatus and General Instructions 

• DOE is considering, but not currently proposing, adopting 

single-voltage EPSs, similar to the proposed changes for voltage EPSs:

– (1) to adopt a 3-tiered measurement resolution requirement– (2) to require that the input voltage remain within 1% of 115 – (3) to require the AC source THD requirement be less than 3– (4) to require full accounting of losses associated with the te

• The proposed changes would make the DOE test procedu

harmonize with the CEC test procedure.

• DOE believes incorporating the proposed changes would 

accuracy and repeatability of measurement and ease the burden on manufacturers in the single-voltage test proced

Test Apparatus and Genera

Single-V

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Test Apparatus and Genera

Single-V

Item 9 The Department invites stakeholder comments on cha

under consideration to the single-voltage external power supp

procedure. 

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Of(ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing Changes to the General Singl

EPS Test Method to Address Standby Mode and 

• For general single-voltage EPSs, DOE believes minor ch

the existing test method of energy consumption in no-loa

can satisfy requirements to address standby mode and o

• The existing no-load mode test method incorporates by r

the no-load mode test method from the CEC EPS Test P

– The proposed standby mode test method adds the require

the EPS has an on-off switch, the switch is set to “on”

2

– The proposed off mode test method adds the requirement 

EPS has an on-off switch, the switch is set to “off”

2

EPS Standby Mode a

Single-V

1 Section 4 of Appendix Z to Subpart B of 10 CFR Part 430 2 Proposed amendments to Section 4 of Appendix Z. 73 FR 48054

Item 10 The Department invites stakeholder comments otest procedure revisions associated with measuring standmode and off mode for single-voltage external power sup

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measuremen(i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Modified Test Measurement 

the Existing Test Measurement for Single-Volta

• The existing single-voltage EPS test measurement measure

efficiency in active mode and no-load power consumption in mode. 

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate Ou

Efficiency

50% 

External Power Supplies 

Note: Graph denotes a generic power-efficiency curve, not corresponding to a specific EPS.

– Average efficiency is the 

average of four efficiencies at 25%, 50%, 75%, and 100% of nameplate output current

• The existing test 

measurement does not address multiple-voltage EPSs

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Considering a Measurement Stabi

Requirement for Single-Voltage EPSs

Test Apparatus and Gene

Singl

• “If the power level does n

more than 1 percent from 

value observed, the unit be considered stable . . .”

2

• If AC input power is not s

follow the guidelines estaIEC Standard 62301 for average power or accum. . .”

2

• “[over] a period of 5 minutes . . . If the 

power level does not drift by more than 5% from the maximum value observed, the UUT can be considered stable . . .”1

Language DOE is ConsidSingle-Voltage EPS Test 

Language in Current DOE SingleVoltage EPS Test Procedure

1 Section 4 of Appendix Z, which incorporates by reference Section 5 of the CEC EPS Test Procedure2 Proposed amendments to Section 4 of Appendix Z. 73 FR at 48082

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Considering a Measurement Stability Req

for Single-Voltage EPSs (continued)

• DOE Is Proposing the Same Measurement Stability Requir

Multiple-Voltage EPSs

• This requirement will yield more 

repeatable and accurate test results.

• It will also provide testing technician 

an alternate approach (consistent with IEC 62301) for measuring power consumption when stability cannot be achieved. 

P 5 minute

Test Apparatus and Gene

Singl

 EERE-2008-BT-TP-0004 COMMENT 16
• In active mode, DOE proposes testing switch-selectable sing

EPSs at the maximum and minimum voltage settings

• This proposal is consistent with Australian and New Zealand 

efficiency programs as well as ENERGY STAR (Version 2.0)

DOE Is Proposing That Switch-Selectable Single

EPSs Be Tested Under Two Voltage Settings in A

10

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate Output Current

Efficiency

Vmax

Vmin

50% 75%

Additional Measurement RSwitch-Selectable Single-V

1 “ENERGY STAR® Program Requirements for Single Voltage External Ac-Dc and Ac-Ac Power Sup

September 2008 from: http://www.energystar.gov/ia/partners/prod_development/revisions/downloads/

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Test Measurement for Switch

Single-Voltage EPSs in Standby Mode and Of

• DOE is proposing a test measurement similar to single-v

EPSs with added specifications for testing switch-selectavoltage EPSs in standby mode and off mode 1

• In addition to the requirements for testing single-voltage 

standby mode and off mode, switch-selectable EPS woutested twice: at the highest voltage setting and lowest vo

setting. 2

1 Section 4 of Appendix Z to Subpart B of 10 CFR Part 430 2 Proposed amendments to Section 4 of Appendix Z. 73 FR 48054

EPS Standby Mode a

Switch-Selectable Single-V

Mains

120 V AC

60 Hz

EPS

Vout1

Vout2

 EERE-2008-BT-TP-0004 COMMENT 16
Item 11 The Department invites stakeholder comments on proposed test measurements for switch-selectable single-vexternal power supplies. In particular, DOE welcomes comits proposal for testing such units at both their highest and lvoltage settings.

DOE Invites Stakeholder Comment

Additional Measurement RSwitch-Selectable Single-V

 EERE-2008-BT-TP-0004 COMMENT 16
The Test Procedure Uses the EPS Namepla

Determine the Test Conditions

• UL 1310 for Class 2 Power Units specifies that 

the unit shall be marked with the electrical rating, 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 nameplate 

with this information

– For example, some EPSs for HAM radios have 

incomplete information

Item 12 The Department invites stakeholder comments on approaches to external power supplies that do not have all nameplate information needed to determine test conditions

Test Apparatus and Gene

Singl

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Of(ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Test Measurement f

Multiple-Voltage EPSs in Standby Mode and O

– The proposed standby mode test measurement adds the 

requirement that all outputs are disconnected and if the EPS has 

an on-off switch, the switch is set to “on”

2

– The proposed off mode test measurement adds the requirement 

that all outputs are disconnected and if the EPS has an on-off 

switch, the switch is set to “off”

2

EPS Standby Mode a

Multiple-V

1 Section 4 of Appendix Z to Subpart B of 10 CFR Part 430 2 Proposed amendments to Section 4 of Appendix Z. 73 FR at 48082

• DOE believes the existing test measurement for single-voltag

no-load mode1 can be adopted to address standby mode and 

for multiple-voltage EPSs. 

• The existing no-load mode test measurement1 incorporates b

the no-load mode test measurement from the CEC EPS Test 

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Invites Stakeholder Comment

Item 12 The Department invites stakeholder comments proposals relating to standby mode and off mode testing requirements for multiple-voltage external power supplies

EPS Standby Mode a

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measuremen

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
Test Measurement Requirements Proposed 

Multiple-Voltage EPSs in Active Mode

• Summary of DOE’s proposed test measurement for mul

voltage EPSs in active mode

– Test measurement stability requirements – Test measurement for conversion efficiency in active mod

• General testing situation• Special case: Adjusting for limits to the minimum output curre• Special case: Derating because of an output power limit

Additional Measurement R

Multiple-V

Mains

120 V AC

60 Hz

External

Power Supply

(EPS)

V1

V2

VN

...

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Measurement Stabil

Requirement for Multiple-Voltage EPSs

Test Apparatus and Gene

Multipl

• “If the power level does n

more than 1 percent from 

value observed, the unit be considered stable . . .

• If AC input power is not s

follow the guidelines estaIEC Standard 62301 for average power or accum. . .”

2

• “[over] a period of 5 minutes . . . If the 

power level does not drift by more than 5% from the maximum value observed, the UUT can be considered stable . . .”1

Language in Proposed DVoltage EPS Test Proced

Language in Current DOE Single- Voltage EPS Test Procedure

1 Section 4 of Appendix Z, which incorporates by reference Section 5 of the CEC EPS Test Procedure2 Proposed amendments to Section 4 of Appendix Z. 73 FR at 48082

1%

t

P 5 minutes

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Measurement Stability Requi

Multiple-Voltage EPSs (continued)

• DOE Is Considering the Same Measurement Stability Requ

for Single-Voltage EPSs

• This requirement will yield more 

repeatable and accurate test results.

• It will also provide the testing 

technician an alternate approach (consistent with IEC 62301) for measuring power consumption when stability cannot be achieved. 

P 5 minute

Item 13 The Department invites stakeholder comments proposals relating to power measurement stability requiand their impacts on testing burden and measurement a

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing a Test Measurement for Con

Efficiency of Multiple-Voltage EPSs

• For multiple-voltage EPSs, DOE 

proposes simultaneously loading 

each output bus to the same 

percentage of nameplate output current

• The average efficiency is an 

average of measured efficiency at four loading conditions: 25%, 50%, 75%, and 100%

out

out

I

Iout

I

InPower 

OutPower 

 at Efficiency

η ==

∑

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate O

Efficiency

50% 

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Example 1: Test Measurement Implementatio

General Multiple-Voltage EPS

Mains

120 V AC

60 Hz

External

Power Supply

(EPS)

Output Bus #1:Nameplate output current 16Output Bus #2: Nameplate output current 1 

Nameplate output 

power of the EPS

Nameplate output 

voltage of bus #1

Nameplate output 

current of bus #1

Nameplate output 

voltage of bus #2

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Example 1: Test Measurement Implementatio

General Multiple-Voltage EPS (continued

Output Bus #1: 12 V, 16Output Bus #2: 5 V, 1 ANameplate Output PoweExampleLoading condition: 25% Output Bus #1: 4.125 AOutput Bus #2: 0.25 A

100%

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate Output Current

Efficiency

50% 75%

max

I%25 InPower 

Ou

Power 

η

=

∑

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Invites Stakeholder Comment

Item 14 The Department invites stakeholder comments oproposals relating to the nominal loading conditions of 2550%, 75%, and 100%.

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
5W

There Are Two Special Cases That Would Cha

General Testing Conditions of the EPS

Output Bus #1: 12 V, Output Bus #2: 5 V, 1 Nameplate Output Po

•The EPS in “Example 1” is not a special case of multiple-output EPS

•Minimum output current

– None of the output busses have 

minimum output current requirements

•Overloading at 100% current

– Nameplate output power limit of 

203 W

– Total bus output power:

(12V)(16.5A) + (5V)(1A) = 203W

– Total bus output power is equal to 

the nameplate output power

Additional Measurement R

Multiple-V

198W

Total Bus

Output

Power

N

Power

at

100%

load

 EERE-2008-BT-TP-0004 COMMENT 16
• If an output bus has a minimum 

output current greater than 25% of the nameplate current, the bus is tested at the minimum output current

• This requirement mirrors 

provisions in the CEC IPS Test Procedure

DOE Is Proposing a Test Measurement for Multip

EPSs with Minimum Output Current Limi

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate 

Efficiency

50% 

Imin

Additional Measurement R

Multiple-V

• Minimum output current is the specified lowest current an ou

bus will provide within a manufacturer’s specification

– This limit ensures that the EPS is stable and reflects how the E

used

 EERE-2008-BT-TP-0004 COMMENT 16
Example 2: Test Measurement Implementatio

Multiple-Voltage EPS with Minimum Output Curr

Output Bus #1: 5V, 3A (miOutput Bus #2: 12V, 0.8A 

Output Bus #3: -12V, 0.25A 

*minimum output currents prospecification sheetExampleLoading condition: 25% of Output Bus #1: 0.75 A (25Output Bus #2: 0.25 A (31Output Bus #3: 0.0625 A (2

100%

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate Output Current

Efficiency

50% 75%

Imin

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 15 The Department invites stakeholder comments oproposals relating to possible adjustments to loading conddue to minimum output current requirements.

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
• The total bus output power may 

be more than the nameplate output power

– Bus output power is calculated:

Pbus = Vbus * Ibus

– Nameplate specifies maximum 

output power for the EPS

• In this special case, DOE 

proposes using a proportional 

allocation method to “derate” the 

current at each loading point 

• This method follows the CEC 

IPS test procedure

DOE Is Proposing a Test Measurement for Multip

EPSs with Output Power Limits

P3P2P1

P3P2P1

Total 

Bus

Output

Power

Derated 

Bus

Output

Power

N

Power

at

100%

load

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Proportional Allocation Meth

Testing a Special Case of Multiple-Voltage E

• DOE proposes a derating 

factor, 

D, calculated:

where:

–

P is nameplate output power

–

V1, . . . ,VN correspond to 

nameplate output voltages, 

– I1, . . . ,IN correspond to output 

current ratings

• If D 

≥ 1, no derating is 

necessary

∑

=

=

3

1

N

i

iiIV

∑=

=

N

i

iiIV

P

D

1

P3P2P1

Total 

Bus

Output

Power

Nam

O

P

Power

at

100%

load

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes a Proportional Allocation Method 

a Special Case of Multiple-Voltage EPSs (con

• For all efficiency tests, the proportional allocation method 

use the derating factor, 

D, to scale the output current for 

output buses

– At the highest load condition, 

D * 100%, the total output po

equal to the nameplate output power

100%

0%

20%40%60%80%

100%

0% 25%

Percentage of Nameplate Output Current

Efficiency

50% 75%

D*25%

D*50% D*75% D*100%

P3P2P1

PPP

Total 

Bus

Output

Power

Dera

Bu

Out

Pow

Power

at

100%

load

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Example 3: Test Measurement Implementatio

Multiple-Voltage EPS with Proportional Alloc

Output Bus #1: 5 V, 5 A Output Bus #2: 12 V, 1.5 ANameplate output power: 2Total bus output power: (5 V)(5 A) + (12 V)(1.5 A) = D = 27 W / 43 W = 0.63Example:Loading condition: 

D * 25%

0.63 * 25% = 16% of full loOutput 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

Efficiency

50% 75%

D*25%

D*50% D*75% D*100%

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 16 The Department invites stakeholder commentthe proposals relating to proportional allocation.

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Proposes an Order of Operations to Det

the Loading Points for Multiple-Voltage EP

• To evaluate the conversion efficiency of a multiple-voltag

active mode:

– Calculate the derating factor, 

D, for the EPS

• If 

D

≥ 1, then no derating is needed. Use 

D = 1

• If 

D < 1, then apply the derating factor to the four loading point

– Evaluate if the minimum loading point, 

D * 25% * Iout_bus, is 

minimum 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, ad

needed

– Calculate the average efficiency as the average of efficienc

measured at the four loading conditions.

• For details in the proposed test procedure, see 73 FR 48

accompanying documents published online.1

1 73 FR at 48082. 

Additional Measurement R

Multiple-V

 EERE-2008-BT-TP-0004 COMMENT 16
Proposed Changes to DOE EPS Test Proce

Appendix Z to Subpart B of 10 CFR 430

2006 EPS Test Procedure: Proposed EPS Test Proce

1. Scope2. Definitions

3. Test Apparatus and 

General Instructions

4. Test Measurement

1. Scope2. Definitions

3. Test Apparatus and General Instructions

4. Test Measurement

(a) Single-Voltage E(b) Multiple-Voltage (a) Single-Voltage E(b) Multiple-Voltage 

(i) Standby & Off (ii) Measurement (i) Standby & Off (ii) Measurement 

External Power Supply 

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

1

2 Background and Legal Authority

Battery Charger Test ProcedureExternal Power Supply Test Procedure

34

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
Manufacturers Shall Test and Certify the Comp

Class A EPSs

• EISA established standards for Class A external power s

that took effect on July 1, 2008. 1

• All manufacturers of covered and regulated products mu

to DOE that their products are in compliance with the ap

energy conservation standards. 

2

• DOE must now implement the certification and enforcem

procedures that manufacturers of Class A EPSs shall fol

Reporting R

1 42 U.S.C. 6295(u)(3) 2 42 U.S.C. 6296(d)

 EERE-2008-BT-TP-0004 COMMENT 16
There Are Five Aspects to Certifying Compl

1. DOE is proposing that manufacturers certify each “basic mo

– DOE is also considering certification by “design family”

2. Manufacturers will select units to test using a sampling plan

– Proposed in July 2006 1 and is currently being finalized. 

3. Manufacturers will measure efficiency with the DOE test pro4. The product must meet the energy-efficiency standard5. Manufacturers certify according to DOE reporting requirem

– DOE is currently proposing reporting requirements specific to 

1 71 FR 42204

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Proposing Reporting Requirements 

Follow the Basic Model Approach

• A “basic model” means: 1

“all units of a given type of covered product (or class thereomanufactured by one manufacturer and [ . . . ] (26) With respect to external power supplies, which have echaracteristics that are essentially identical, and which do nany different physical or functional characteristics that affecconsumption.”

• External power supplies are different basic models, if the

by characteristics such as:

– output power– output voltage– output cord length

1 10 CFR 430.2

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
For Each Basic Model, DOE Proposes a Require

Compliance Statement and Certification Re

• A “compliance statement” attests that: 1

– The basic model meets applicable standards,– Application of the test procedure conformed with requireme– All information is true, accurate, and complete

• A “certification report” details information, such as: 

2

– manufacturer's name – manufacturer’s model number(– product class – private labeler's name(s) (if ap– product type

• DOE is proposing that certification reports specific to ext

power supplies include:

– active mode efficiency – no-load mode power consump

Reporting R

1 10 CFR 430.62(3)2 10 CFR 430.62(4)

 EERE-2008-BT-TP-0004 COMMENT 16
For Each Basic Model, DOE Proposes a Require

Compliance Statement and Certification Repo

Reporting R

• Sample compliance s

and certification repor73 FR at 48075 

 EERE-2008-BT-TP-0004 COMMENT 16
• “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 s

– A compliance statement and certification report for all basic 

the design family, supported by test results for the lowest o

voltage model and the highest output voltage model in the d

family

• Approach based on certification of “model families” accep

the ENERGY STAR program 1

Reporting R

DOE Is Also Considering Alternative Repor

Requirements Based on Design Familie

1 ENERGY STAR® Program Requirements for Single Voltage External Ac-Dc and Ac-Ac Power Sup

September 2008 from: http://www.energystar.gov/ia/partners/prod_development/revisions/downloads

 EERE-2008-BT-TP-0004 COMMENT 16
DOE Is Also Considering Alternative Repor

Requirements Based on Design Families (con

• Manufacturers would certify and be responsible for comp

all EPSs within the design family 

• The design family approach does not address difference

output cord length

– Output cords affect efficiency and could vary between EPS– Manufacturers attest that all EPSs within the design family 

standards, regardless of differences in the output cord.

• DOE is considering this alternative approach, if it reduce

manufacturer burden while ensuring compliance with sta

– This may reduce reporting burden for custom-built EPSs w

significant segment of the EPS market

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
Basic Model Approach Design Family 

C

Compliance 

Statement

Certification

Report

Compliance 

Statement

External Power 

Supply

(Output Power and 

Output Voltage)

Comparison of the “Basic Model” Approach a

“Design Family” Approach

24 W, 12 V

24 W, 15 V24 W, 18 V

24 W, 24 V

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
Request for Comment

Item 17 The Department seeks comment on whether manufacturers should be required to certify every basic model or whether they should be allowed to form “desigfamilies” and only certify the highest and lowest voltage design within each family.

Reporting R

 EERE-2008-BT-TP-0004 COMMENT 16
External Power Supply Test Procedure

123

Reporting Requirements

4

Background and Legal Authority

Introduction

Public Meeting Agenda

5

1

Reporting Requirements

2 Background and Legal Authority

Battery Charger Test ProcedureExternal Power Supply Test Procedure

34

 EERE-2008-BT-TP-0004 COMMENT 16
In all correspondence, please refer to the Battery Chargers and E

Power Supplies Test Procedure by

– Test Procedures for Battery Chargers and External Power Sup– Docket Number EERE-2008-BT-TP-0004, and– Regulatory Identification Number (RIN) 1904-AB75

Email: BC&EPS_Test_Proc@ee.doe.govComment period closes October 29, 2008

How to Submit Written Comments

Postal Mail:

Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program, Mailstop EE-2J1000 Independence Avenue, SWWashington, DC 20585-0121

Courier:

Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Progra950 L’Enfant Plaza, S.W., 6th 

Washington, DC 20024 Telephone: (202) 586-2945

Clos

 EERE-2008-BT-TP-0004 COMMENT 16