SIST EN IEC 62623:2023

SLOVENSKI STANDARD
oSIST prEN IEC 62623:2021
01-julij-2021
Namizni in prenosni računalniki - Merjenje porabe energije
Desktop and notebook computers - Measurement of energy consumption
Ordinateurs de bureau et ordinateurs portables - Mesure de la consommation d'énergie
Ta slovenski standard je istoveten z: prEN IEC 62623:2021
ICS:
35.160 Mikroprocesorski sistemi Microprocessor systems
oSIST prEN IEC 62623:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 62623:2021

---------------------- Page: 2 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62623 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-05-21 2021-08-13
SUPERSEDES DOCUMENTS:
100/3510/CD, 100/3580/CC

IEC TA 19 : ENVIRONMENTAL AND ENERGY ASPECTS FOR MULTIMEDIA SYSTEMS AND EQUIPMENT
SECRETARIAT: SECRETARY:
Germany Mr Andreas Schneider
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.

TITLE:
Desktop and notebook computers - Measurement of energy consumption (TA 19)

PROPOSED STABILITY DATE: 2025

NOTE FROM TC/SC OFFICERS:

1
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download
this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee
positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose
without permission in writing from IEC.

---------------------- Page: 3 ----------------------
oSIST prEN IEC 62623:2021

---------------------- Page: 4 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV – 2 – IEC CDV 62623 ED2 © IEC:2021

2 CONTENTS
3
4 FOREWORD . 5
5 INTRODUCTION . 7
6 1 Scope . 8
7 2 Normative references . 8
8 3 Terms, definitions and abbreviations . 8
9 3.1 Terms and definitions . 8
10 3.2 Abbreviations . 11
11 4 Specifications for EUT . 12
12 4.1 Computer descriptions . 12
13 4.1.1 Desktop computer . 12
14 4.1.2 Notebook computer . 12
15 4.1.3 Two-in-one notebook . 13
16 4.1.4 Multiscreen notebook . 13
17 4.1.5 Slate/Tablet . 13
18 4.1.6 Portable all-in-one computer . 13
19 4.1.7 Integrated desktop computer . 13
20 4.2 Power modes . 14
21 4.2.1 Off mode . 14
22 4.2.2 P . 14
off
23 4.2.3 Sleep mode . 14
24 4.2.4 P . 14
sleep
25 4.2.5 PsleepWoL . 14
26 4.2.6 Alternative low power mode . 14
27 4.2.7 P . 14
ALPM
28 4.2.8 On mode . 14
29 4.2.9 Pon . 14
30 4.2.10 Idle modes . 15
31 4.2.11 Active (work) mode . 15
32 4.2.12 P . 15
work
33 4.3 Profile attributes . 16
34 4.3.1 Profile . 16
35 4.3.2 Majority profile . 16
36 4.3.3 Minority profile . 16
37 4.3.4 Profile study . 16
38 4.3.5 Product active power ratio . 16
39 4.3.6 PAPR . 16
40 4.3.7 PAWR. 16
41 4.3.8 Product TEC error . 16
42 4.3.9 Profile TEC error . 17
43 4.4 Categorisation attributes . 17
44 4.4.1 General . 17
45 4.4.2 Cores . 17
46 4.4.3 Expandability score (ES) . 17
47 4.4.4 Performance score . 17
48 4.4.5 Graphics capability . 17

---------------------- Page: 5 ----------------------
oSIST prEN IEC 62623:2021
IEC CDV 62623 ED2 © IEC:2021 – 3 – 100/3583/CDV

49 4.4.6 TEC adders . 17
50 5 Test procedure and conditions, categorisation, TEC formula, meter specifications
51 and results reporting . 17
52 5.1 General . 17
53 5.2 Test setup . 17
54 5.3 Test procedure . 20
55 5.3.1 General . 20
56 5.3.2 Measuring off mode . 20
57 5.3.3 Measuring sleep mode . 20
58 5.3.4 Measuring alternative low power mode . 21
59 5.3.5 Measuring long idle mode . 21
60 5.3.6 Measuring short idle mode . 21
61 5.3.7 Measuring active power mode (optional, see 5.6) . 22
62 5.4 Test conditions . 22
63 5.5 Categorisation . 23
64 5.5.1 General . 23
65 5.5.2 TEC adders . 23
66 5.6 Annualised energy consumption formulas . 23
67 5.6.1 General . 23
68 5.6.2 Estimated annualised energy consumption formula (estimated active
69 workload) . 24
70 5.6.3 Measured annualised energy consumption formula (with an active
71 workload) . 24
72 5.6.4 Criteria for an active workload . 25
73 5.7 True RMS watt meter specification . 26
74 5.8 True RMS watt meter accuracy . 26
75 5.9 Ambient light meter specification. 28
76 5.10 Reporting of results . 28
77 Annex A (informative) Overview of profile methodology. 31
78 Annex B (informative) Majority profile . 33
79 Annex C (informative) Method for conducting a profile study . 34
80 C.1 General . 34
81 C.2 Profile study example . 34
82 Annex D (informative) Sample TEC calculations . 38
83 D.1 General . 38
84 D.2 Notebook computer example . 38
85 D.3 Desktop computer example . 39
86 Annex E (informative) Power measurement methodology . 40
87 E.1 General . 40
88 E.2 Sampling method . 40
89 E.3 Average reading method . 41
90 E.4 Direct meter reading method . 42
91 Bibliography . 44
92
93 Figure 1 – Typical test setup . 19
94 Figure 2 – Example of estimated annualised energy consumption formula (estimated
95 active workload) . 24
96 Figure 3 – Measured annualised energy consumption formula (with an active
97 workload) . 25

---------------------- Page: 6 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV – 4 – IEC CDV 62623 ED2 © IEC:2021

98 Figure A.1 – Example of a typical profile . 32
99
100 Table 1 – External display connection priority . 18
101 Table 2 – Test conditions . 22
102 Table 3 – Ambient light meter specifications . 28
103 Table B.1 – Duty cycle attributes for the enterprise and residential majority profile duty
104 cycle study . 33
105 Table C.1 – Profile study 1 . 35
106 Table C.2 – Profile study, duty cycles . 35
107 Table C.3 – Profile study, TEC and TEC calculations . 36
actual estimated
108
109

---------------------- Page: 7 ----------------------
oSIST prEN IEC 62623:2021
IEC CDV 62623 ED2 © IEC:2021 – 5 – 100/3583/CDV

110 INTERNATIONAL ELECTROTECHNICAL COMMISSION
111 ____________
112
113 DESKTOP AND NOTEBOOK COMPUTERS –
114 MEASUREMENT OF ENERGY CONSUMPTION
115
116
117 FOREWORD
118 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
119 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
120 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
121 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
122 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
123 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
124 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
125 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
126 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
127 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
128 consensus of opinion on the relevant subjects since each technical committee has representation from all
129 interested IEC National Committees.
130 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
131 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
132 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
133 misinterpretation by any end user.
134 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
135 transparently to the maximum extent possible in their national and regional publications. Any divergence between
136 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
137 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
138 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
139 services carried out by independent certification bodies.
140 6) All users should ensure that they have the latest edition of this publication.
141 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
142 members of its technical committees and IEC National Committees for any personal injury, property damage or
143 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
144 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
145 Publications.
146 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
147 indispensable for the correct application of this publication.
148 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
149 rights. IEC shall not be held responsible for identifying any or all such patent rights.
150 International Standard IEC 62623 has been prepared by technical area 19: Environmental and
151 energy aspects for multimedia systems and equipment, of IEC technical committee 100: Safety
152 of electronic equipment within the field of audio/video, information technology and
153 communication technology.
154 This second edition constitutes a technical revision.
155 The first edition of this standard was originally based on ECMA-383.
156 This second edition of IEC 62623 includes the following significant technical changes with
157 respect to IEC 62623:2012:
158 – Additions to terms & definitions and modification to short & long idle descriptions.
159 – Test setup modifications for notebooks where battery pack cannot be removed for testing.
160 – Categorisation procedure based on ECMA-389 removed.
161 – Replace majority profile with new duty cycle study including new duty cycle attributes for
162 desktop and notebook in a residential and enterprise application.
163 – Removal of any reference and test methodology to ENERGY STAR V5.

---------------------- Page: 8 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV – 6 – IEC CDV 62623 ED2 © IEC:2021

164 The text of this standard is based on the following documents:
FDIS Report on voting

165
166 Full information on the voting for the approval of this standard can be found in the report on
167 voting indicated in the above table.
168 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
169 In this standard, the following print types or formats are used:
170 – requirements proper and normative annexes: in roman type;
171 – notes/explanatory matter: in smaller roman type;
172 – terms that are defined in 3.1: bold.
173 The committee has decided that the contents of this publication will remain unchanged until the
174 stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
175 the specific publication. At this date, the publication will be
176 • reconfirmed,
177 • withdrawn,
178 • replaced by a revised edition, or
179 • amended.
180
181
182 IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
183 that it contains colours which are considered to be useful for the correct
184 understanding of its contents. Users should therefore print this document using a
185 colour printer.
186
187
188

---------------------- Page: 9 ----------------------
oSIST prEN IEC 62623:2021
IEC CDV 62623 ED2 © IEC:2021 – 7 – 100/3583/CDV

189 INTRODUCTION
190 This standard provides definitions of energy saving modes and generic energy saving guidance
191 for designers of desktop and notebook computers, by defining a methodology on how to
192 measure the energy consumption of a product whilst providing key categorisation attributes that
193 enable energy consumption comparisons of similar products.
194 This standard is originally based on ECMA-383 and complements the guidance given in
195 IEC 62075.
196

---------------------- Page: 10 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV – 8 – IEC CDV 62623 ED2 © IEC:2021

197 DESKTOP AND NOTEBOOK COMPUTERS –
198 MEASUREMENT OF ENERGY CONSUMPTION
199
200
201
202 1 Scope
203 This International Standard covers personal computing products. It applies to desktop and
204 notebook computers as defined in 4.1 that are marketed as final products and that are hereafter
205 referred to as the equipment under test (EUT) or product.
206 This standard specifies:
207 – a test procedure to enable the measurement of the power and/or energy consumption in
208 each of the EUT's power modes;
209 – formulas for calculating the typical energy consumption (TEC) for a given period (normally
210 annual);
211 – a majority profile that should be used with this standard which enables conversion of
212 average power into energy within the TEC formulas;
213 – a pre-defined format for the presentation of results.
214 This standard does not set any pass/fail criteria for the EUTs. Users of the test results should
215 define such criteria.
216 2 Normative references
217 There are no normative references in this document.
218 3 Terms, definitions and abbreviations
219 For the purposes of this document, the following terms and definitions apply.
220 ISO and IEC maintain terminological databases for use in standardization at the following
221 addresses:
222 • IEC Electropedia: available at http://www.electropedia.org/
223 • ISO Online browsing platform: available at http://www.iso.org/obp
224 3.1 Terms and definitions
225 3.1.1
226 active workload
227 simulated amount of productive or operative activity that the EUT performs as represented in
228 the P (see 4.2.10) and T (see 3.1.12.6) attributes of the TEC equation (see 5.6)
work work
229 3.1.2
230 category
231 classification within a product type that is based on product features and installed components
232 3.1.3
233 duty cycle
234 divisions of time the EUT spends in each of its individual power modes
235 Note 1 to entry: A duty cycle is expressed as a percentage totalling 1.

---------------------- Page: 11 ----------------------
oSIST prEN IEC 62623:2021
IEC CDV 62623 ED2 © IEC:2021 – 9 – 100/3583/CDV

236 3.1.4
237 energy use
238 energy used by a product when measured from the mains power supply over a given period of
239 time
240 Note 1 to entry: Energy is measured in kilowatt hour.
241 3.1.5
242 external power supply
243 EPS
244 equipment contained in a separate physical enclosure external to the computer casing and
245 designed to convert mains power supply to lower d.c. voltage(s) for the purpose of powering
246 the computer
247 Note 1 to entry: This note applies to the French language only.
248 Note 2 to entry: The EPS is sometimes referred to as an a.c. brick.
249 Note 3 to entry: A reference to a document which outlines the testing procedures for measuring EPS efficiencies
250 (External Power Supply Efficiency Test Method) can be found in the Bibliography.
251 3.1.6
252 internal power supply
253 IPS
254 component contained in the same physical enclosure to the computer casing and designed to
255 convert a.c. voltage from the mains power supply to lower d.c. voltage(s) for the purpose of
256 powering the computer components
257 Note 1 to entry: This note applies to the French language only.
258 Note 2 to entry: A reference to a document which outlines the testing procedures for measuring IPS efficiencies
259 (Generalized Internal Power Supply Efficiency Test Protocol) can be found in the Bibliography.
260 3.1.7
261 local area network
262 LAN
263 computer network located on a user’s premises within a limited geographical area
264 [SOURCE: IEC 60050-732-01-04]
265 Note 1 to entry: This note applies to the French language only.
266 Note 2 to entry: Currently the two primary technologies used in computers are IEEE 802.3 Ethernet or Wired LAN,
267 and IEEE 802.11 WiFi or Wireless LAN.
268 3.1.8
269 manufacturer
270 organization responsible for the design, development and production of a product in view of its
271 being placed on the market, regardless of whether these operations are carried out by that
272 organization itself or on its behalf
273 3.1.9
274 typical energy consumption
275 TEC
276 number for the consumption of energy of a computer that is used to compare the energy
277 performance of like computers, which focuses on the typical energy consumed by an EUT for a
278 given profile while in normal operation during a representative period of time
279 Note 1 to entry: This note applies to the French language only.
280 Note 2 to entry: For desktops and notebook computers, the key criterion of the TEC approach is a value for typical
281 annual energy use, measured in kilowatt-hours (kWh), using measurements of average operational mode power
282 levels scaled by an assumed typical duty cycle that represent annualized use for a profile.

---------------------- Page: 12 ----------------------
oSIST prEN IEC 62623:2021
100/3583/CDV – 10 – IEC CDV 62623 ED2 © IEC:2021

283 3.1.10
284 actual energy consumption
285 TEC measured using P
work
286 Note 1 to entry: The actual energy consumption is referenced as TEC .
actual
287 3.1.11
288 duty cycle attributes
289 percentage of time the EUT spends in each of its individual power modes
290 Note 1 to entry: Examples of duty cycle attributes are defined in 3.1.12.1 to 3.1.12.7.
291 3.1.11.1
292 off component of duty cycle
293 T
off
294 percentage of time the EUT is in the off mode
295 3.1.11.2
296 sleep component of duty cycle
297 T and T
sleep sleepWoL
298 percentage of time the EUT is in the sleep modes
299 3.1.11.3
300 on components of duty cycle
301 T
on
302 percentage of time the EUT is in the on mode
303 Note 1 to entry: The T duty cycle is equal to the sum of the T + T + T .
on work sidle idle
304 3.1.11.4
305 short idle component of duty cycle
306 T
sidle
307 percentage of time the EUT is in the short idle mode
308 3.1.11.5
309 long idle component of duty cycle
310 T
idle
311 percentage of time the EUT is in the long idle mode
312 3.1.11.6
313 alternative low power component of duty cycle
314 T
alpm
315 percentage of time the EUT is in the alternative low power mode
316 3.1.11.7
317 active component of duty cycle
318 T
work
319 percentage of time the EUT is in the active (work) mode
320 3.1.12
321 user of the test results
322 entity that will utilise the test results to apply to their needs
323 Note 1 to entry: Examples of such an entity are voluntary agreement owners, regulators, private companies, etc.

---------------------- Page: 13 ----------------------
oSIST prEN IEC 62623:2021
IEC CDV 62623 ED2 © IEC:2021 – 11 – 100/3583/CDV

324 3.1.13
325 wake on LAN
326 WoL
327 functionality that allows a computer to wake from sleep or off to an active state when directed
328 by a network wake request via Ethernet
329 Note 1 to entry: This note applies to the French language only.
330 3.1.14
331 graphics processor unit
332 GPU
333 integrated circuit, separate from the CPU, designed to accelerate the rendering of either 2D
334 and/or 3D content to displays
335 Note 1 to entry:  GPU may be paired with a CPU, on the system board of the computer or elsewhere to offload
336 display capabilities from the CPU
337 3.1.15
338 discrete graphics
339 dGfx
340 graphics processor (GPU) which must contain a local memory controller interface and local
341 graphics-specific memory
342 3.1.16
343 integrated graphics
344 iGfx
345 graphics solution that does not co
...