SIST EN IEC 62933-1:2024
(Main)Electrical energy storage (EES) systems - Part 1: Vocabulary (IEC 62933-1:2024)
Electrical energy storage (EES) systems - Part 1: Vocabulary (IEC 62933-1:2024)
IEC 62933-1:2024 defines terms applicable to electrical energy storage (EES) systems including terms necessary for the definition of unit parameters, test methods, planning, installation, operation, environmental and safety issues.
This terminology document is applicable to grid-connected systems able to extract electrical energy from an electric power system, store energy internally, and provide electrical energy to an electric power system. The step for charging and discharging an EES system can comprise an energy conversion.
This second edition cancels and replaces the first edition published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition (with revision) of the entries developed during the edition 1 stability period and, therefore, included only in other IEC 62933 parts;
b) addition of the entries developed during the edition 1 stability period and published in this document for the first time;
c) complete revision of the entries already present in edition 1.
Elektrische Energiespeichersysteme (EES-Systeme) - Teil 1: Terminologie (IEC 62933-1:2024)
Systèmes de stockage de l'énergie électrique (EES) - Partie 1: Vocabulaire (IEC 62933-1:2024)
L’IEC 62933-1:2024 définit les termes applicables aux systèmes de stockage de l’énergie électrique (EES - electrical energy storage), y compris les termes nécessaires à la définition des paramètres unitaires, des méthodes d’essai, de la planification, de l’installation, du fonctionnement et des problèmes environnementaux et de sécurité.
Le présent document terminologique est applicable aux systèmes connectés au réseau capables d’extraire l’énergie électrique d’un réseau d’alimentation électrique, de stocker l’énergie en interne et de fournir de l’énergie électrique à un réseau d’alimentation électrique. La phase de charge et de décharge d’un système EES peut inclure une conversion d’énergie.
Cette seconde édition annule et remplace la première édition parue en 2018. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) ajout (avec révision) des articles élaborés pendant la période de stabilité de l’édition 1 et, par conséquent, inclus seulement dans d’autres parties de l’IEC 62933;
b) ajout des articles élaborés pendant la période de stabilité de l’édition 1 et publiés dans le présent document pour la première fois;
c) révision complète des articles déjà présents dans l’édition 1.
Električne naprave za shranjevanje energije (EES) - 1. del: Slovar (IEC 62933-1:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Električne naprave za shranjevanje energije (EES) - 1. del: Slovar (IEC 62933-
1:2024)
Electrical energy storage (EES) systems - Part 1: Vocabulary (IEC 62933-1:2024)
Elektrische Energiespeichersysteme (EES-Systeme) - Teil 1: Terminologie (IEC 62933-
1:2024)
Systèmes de stockage de l'énergie électrique (EES) - Partie 1: Vocabulaire (IEC 62933-
1:2024)
Ta slovenski standard je istoveten z: EN IEC 62933-1:2024
ICS:
01.040.27 Prenos energije in toplote Energy and heat transfer
(Slovarji) engineering (Vocabularies)
27.010 Prenos energije in toplote na Energy and heat transfer
splošno engineering in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62933-1
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2024
ICS 01.040.17 Supersedes EN IEC 62933-1:2018
English Version
Electrical energy storage (EES) systems - Part 1: Vocabulary
(IEC 62933-1:2024)
Systèmes de stockage de l'énergie électrique (EES) - Partie Elektrische Energiespeichersysteme (EES-Systeme) - Teil
1 : Vocabulaire 1: Terminologie
(IEC 62933-1:2024) (IEC 62933-1:2024)
This European Standard was approved by CENELEC on 2024-06-19. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62933-1:2024 E
European foreword
The text of document 120/358/FDIS, future edition 2 of IEC 62933-1, prepared by IEC/TC 120
"Electrical Energy Storage (EES) systems" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 62933-1:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-03-19
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-06-19
document have to be withdrawn
This document supersedes EN IEC 62933-1:2018 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62933-1:2024 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60027 series NOTE Approved as EN 60027 series
IEC 61165:2006 NOTE Approved as EN 61165:2006 (not modified)
IEC 61427-2:2015 NOTE Approved as EN 61427-2:2015 (not modified)
IEC 61850-4:2011 NOTE Approved as EN 61850-4:2011 (not modified)
IEC 61850-4:2011/A1:2020 NOTE Approved as EN 61850-4:2011/A1:2020 (not modified)
IEC 61987-1:2006 NOTE Approved as EN 61987-1:2007 (not modified)
IEC 62381:2012 NOTE Approved as EN 62381:2012 (not modified)
IEC 62443-3-3:2013 NOTE Approved as EN IEC 62443-3-3:2019 (not modified)
IEC 62477-1:2012 NOTE Approved as EN 62477-1:2012 (not modified) +A11:2014
IEC 62668-1:2019 NOTE Approved as EN IEC 62668-1:2019 (not modified)
IEC 62680 series NOTE Approved as EN IEC 62680 series
IEC 62928:2017 NOTE Approved as EN IEC 62928:2018 (not modified)
IEC 62932-1:2020 NOTE Approved as EN IEC 62932-1:2020 (not modified)
IEC 62934:2021 NOTE Approved as EN IEC 62934:2021 (not modified)
ISO 14050:2020 NOTE Approved as EN ISO 14050:2020 (not modified)
IEC 62933-1 ®
Edition 2.0 2024-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical energy storage (EES) systems –
Part 1: Vocabulary
Systèmes de stockage de l'énergie électrique (EES) –
Partie 1 : Vocabulaire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.040.17 ISBN 978-2-8322-8797-2
– 2 – IEC 62933-1:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions for EES systems classification . 6
3.1 Fundamental concepts for EES systems classification . 6
3.2 EES systems classification . 7
3.3 EES systems long-duration application . 9
3.4 EES systems short-duration application . 10
3.5 EES systems hybrid and emergency application . 12
4 Terms and definitions for EES systems specification . 12
4.1 Fundamental concepts for EES systems specification . 12
4.2 EES system duty cycles . 15
4.3 EES system primary POC . 17
4.4 EES system auxiliary POC . 24
4.5 EES system service life . 25
4.6 EES system energy efficiency . 27
4.7 EES system step response performances . 29
5 Terms and definitions for EES systems planning and installation . 32
5.1 Fundamental concepts for EES systems planning and installation . 32
5.2 EES system primary subsystem . 33
5.3 EES system auxiliary subsystem . 34
5.4 EES system control subsystem . 35
6 Terms and definitions for EES systems operation . 36
6.1 EES system operating state . 36
6.2 EES system operating signals . 37
6.3 EES system operating procedure . 40
6.4 EES system operating mode . 40
7 Terms and definitions for EES systems' environmental and safety issues . 41
7.1 EES system environmental issues . 41
7.2 EES system safety . 42
Annex A (informative) Index . 45
A.1 Terms index . 45
A.2 Abbreviated terms index . 45
Bibliography . 51
Figure 1 – Illustrative example of EES system energy storage capacities relation . 14
Figure 2 – Illustrative example of EES system charging-discharging cycle . 16
Figure 3 – Illustrative example of EES system power capability chart . 17
Figure 4 – Illustrative example of EES system response performances . 30
Figure 5 – EES system architecture with one POC type . 33
Figure 6 – EES system architecture with two POC types . 34
Figure 7 – Illustrative example of EES system available energies relation . 38
Table 1 – Illustrative example of EES system efficiency chart . 27
IEC 62933-1:2024 © IEC 2024 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –
Part 1: Vocabulary
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement thi
...
SLOVENSKI STANDARD
oSIST prEN IEC 62933-1:2023
01-oktober-2023
Električne naprave za shranjevanje energije (EES) - 1. del: Slovar
Electrical energy storage (EES) systems - Part 1: Vocabulary
Systèmes de stockage de l'énergie électrique (EES) - Partie 1: Vocabulaire
Ta slovenski standard je istoveten z: prEN IEC 62933-1:2023
ICS:
01.040.27 Prenos energije in toplote Energy and heat transfer
(Slovarji) engineering (Vocabularies)
27.010 Prenos energije in toplote na Energy and heat transfer
splošno engineering in general
oSIST prEN IEC 62933-1:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 62933-1:2023
oSIST prEN IEC 62933-1:2023
120/321/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62933-1 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-07-21 2023-10-13
SUPERSEDES DOCUMENTS:
120/302/CD, 120/311A/CC
IEC TC 120 : ELECTRICAL ENERGY STORAGE (EES) SYSTEMS
SECRETARIAT: SECRETARY:
Japan Mr Hideki HAYASHI
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 1,TC 8,TC 21,SC 21A,TC 22,SC 22E,TC
57,TC 64,TC 69,TC 82,TC 88,TC 105
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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Electrical energy storage (EES) systems - Part 1: Vocabulary
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
This document is considered to include the latest terms concerning to EESS.
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.
oSIST prEN IEC 62933-1:2023
IEC CDV 62933-1 © IEC 2023 2 120/321/CDV
1 CONTENTS
3 FOREWORD. 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms and definitions for EES systems classification . 7
8 3.1 Fundamental concepts . 7
9 3.2 EES systems classification . 8
10 3.3 EES systems long-duration application . 10
11 3.4 EES systems short-duration application . 11
12 3.5 EES systems hybrid and emergency application . 13
13 4 Terms and definitions for EES systems specification . 14
14 4.1 Fundamental concepts . 14
15 4.2 EES system duty cycles . 16
16 4.3 EES system primary POC . 18
17 4.4 EES system auxiliary POC . 25
18 4.5 EES system service life . 26
19 4.6 EES system energy efficiency. 27
20 4.7 EES system step response performances . 30
21 5 Terms and definitions for EES systems planning and installation . 32
22 5.1 Fundamental concepts . 32
23 5.2 EES system primary subsystem . 33
24 5.3 EES system auxiliary subsystem . 34
25 5.4 EES system control subsystem . 35
26 6 Terms and definitions for EES systems operation . 36
27 6.1 EES system operating state . 36
28 6.2 EES system operating signals . 37
29 6.3 EES system operating procedure . 40
30 6.4 EES system operating mode . 40
31 7 Terms and definitions for EES systems environmental and safety issues . 41
32 7.1 EES system environmental issues . 41
33 7.2 EES system safety . 42
34 Annex A (informative) Index . 45
35 A.1 Terms index . 45
36 A.2 Abbreviated terms index . 48
37 Bibliography . 50
39 Figures
40 Figure 1 – Illustrative example of EES system energy storage capacities relation . 15
41 Figure 2 – Illustrative example of EES system charging-discharging cycle . 17
42 Figure 3 – Illustrative example of EES system power capability chart . 18
43 Figure 4 – Illustrative example of EES system response performances . 30
44 Figure 5 – EES system architecture with one POC type . 33
45 Figure 6 – EES system architecture with two POC types . 34
46 Figure 7 – Illustrative example of EES system available energies relation . 38
oSIST prEN IEC 62933-1:2023
IEC CDV 62933-1 © IEC 2023 3 120/321/CDV
48 Tables
49 Table 1 – Illustrative example of EES system efficiency chart . 28
oSIST prEN IEC 62933-1:2023
IEC CDV 62933-1 © IEC 2023 4 120/321/CDV
52 INTERNATIONAL ELECTROTECHNICAL COMMISSION
53 ____________
55 ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –
57 Part 1: Vocabulary
61 FOREWORD
62 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
63 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
64 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
65 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
66 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
67 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
68 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
69 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
70 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
71 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possibl e, an international
72 consensus of opinion on the relevant subjects since each technical committee has representation from all
73 interested IEC National Committees.
74 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
75 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
76 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
77 misinterpretation by any end user.
78 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
79 transparently to the maximum extent possible in their national and regional publications. Any divergence between
80 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
81 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
82 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
83 services carried out by independent certification bodies.
84 6) All users should ensure that they have the latest edition of this publication.
85 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
86 members of its technical committees and IEC National Committees for any personal injury, property damage or
87 other damage of any nature whatsoever, whether direct or indirect, or for costs (incl uding legal fees) and
88 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications .
89 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
90 indispensable for the correct application of this publication.
91 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
92 rights. IEC shall not be held responsible for identifying any or all such patent rights.
93 International Standard IEC 62933-1 has been prepared by IEC technical committee 120:
94 Electrical Energy Storage (EES) Systems.
95 The text of this standard is based on the following documents:
FDIS Report on voting
120/XX/FDIS 120/XX/RVD
97 Full information on the voting for the approval of this standard can be found in the report on
98 voting indicated in the above table.
99 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
100 A list of all parts in the IEC 62933 series, published under the general title Electrical energy
101 storage (EES) systems, can be found on the IEC website.
oSIST prEN IEC 62933-1:2023
IEC CDV 62933-1 © IEC 2023 5 120/321/CDV
102 The committee has decided that the contents of this publication will remain unchanged until the
103 stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
104 the specific publication. At this date, the publication will be
105 • reconfirmed,
106 • withdrawn,
107 • replaced by a revised edition, or
108 • amended.
110 The National Committees are requested to note that for this publication the stability date
111 is 2029.
112 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED
113 AT THE PUBLICATION STAGE.
IMPORTANT – The 'color inside' logo on the cover page of this publication indicates that
it contains colours which are considered to be useful for the correct understanding of
its contents. Users should therefore print this document using a colour printer.
oSIST prEN IEC 62933-1:2023
IEC CDV 62933-1 © IEC 2023 6 120/321/CDV
116 INTRODUCTION
117 The purpose of this terminology document is to provide terms and definitions for all the
118 publications under the responsibility of TC 120, that standardizes electrical energy storage
119 systems (EES systems) including unit parameters, test methods, planning, installation, safety
120 and environmental issues. An EES system includes any type of grid-connected energy storages
121 which can both store electrical energy and provide electrical energy (from electricity to
122 electricity).
123 All TC 120 normative documents are subject to revision, this part of IEC 62933 will be revised
124 together with other TC 120 publications in order to avoid mismatches.
125 From the technical point of view, an EES system can be a complex multi-stage system with
126 several possible energy conversions. Each stage is made by components well standardized
127 (e.g. transformers, power convertion systems) or innovative components (e.g. new types of
128 batteries). Several IEC product standards give definitions necessary for the understanding of
129 certain terms used for these components. The International Electrotechnical Vocabulary (IEV,
...
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