Electrical energy storage (EES) systems - Part 4-4: Environmental requirements for battery-based energy storage systems (BESS) with reused batteries

IEC 62933-4-4:2023 describes environmental issues when reused batteries are considered for a BESS. It provides details and requirements for identifying and preventing environmental issues in each life cycle stage, i.e., from the design to the disassembly of such reused batteries in a BESS.

Systèmes de stockage de l'énergie électrique (EES) - Partie 4-4: Exigences environnementales pour les systèmes de stockage de l'énergie sur batterie (BESS) avec batteries réutilisées

L'IEC 62933-4-4:2023 décrit les préoccupations environnementales qui surviennent lorsque des batteries réutilisées sont envisagées pour un BESS. Elle fournit des informations détaillées et des exigences pour l'identification et la prévention concernant ces préoccupations environnementales à chaque stade du cycle de vie, c'est-à-dire de la conception au démontage de ces batteries réutilisées dans un BESS.

Električne naprave za shranjevanje energije (EES) - 4-4. del: Standard o okoljskih vprašanjih na osnovi baterijskih sistemov za shranjevanje energije (BESS) s ponovno uporabljenimi baterijami - Zahteve

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Publication Date
21-Jan-2024
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SLOVENSKI STANDARD
oSIST prEN IEC 62933-4-4:2023
01-maj-2023
Električne naprave za shranjevanje energije (EES) - 4-4. del: Standard o okoljskih
vprašanjih na osnovi baterijskih sistemov za shranjevanje energije (BESS) s
ponovno uporabljenimi baterijami - Zahteve
Electrical energy storage (EES) systems- Part 4-4: Standard on environmental issues
battery-based energy storage systems (BESS) with reused batteries - requirements
Ta slovenski standard je istoveten z: prEN IEC 62933-4-4:2023
ICS:
27.010 Prenos energije in toplote na Energy and heat transfer
splošno engineering in general
oSIST prEN IEC 62933-4-4:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 62933-4-4:2023
oSIST prEN IEC 62933-4-4:2023
120/304/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62933-4-4 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-02-03 2023-04-28
SUPERSEDES DOCUMENTS:
120/272/CD, 120/277B/CC
IEC TC 120 : ELECTRICAL ENERGY STORAGE (EES) SYSTEMS
SECRETARIAT: SECRETARY:
Japan Mr Hideki HAYASHI
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 8A,TC 21,SC 21A,TC 69,TC 77,TC 111
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
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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
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• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See
AC/22/2007.
TITLE:
Electrical energy storage (EES) systems- Part 4-4: Standard on environmental issues battery-
based energy storage systems (BESS) with reused batteries – requirements

PROPOSED STABILITY DATE: 2028
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
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any other purpose without permission in writing from IEC.

oSIST prEN IEC 62933-4-4:2023
IEC CDV 62933-4-4 © IEC 2022 2 120/304/CDV

NOTE FROM TC/SC OFFICERS:
This CDV has been revised based on observations made by 120/277B/CC. Also, the title of this
standard has been changed below to reflect his CH4 and CH5 observations of 120/277B/CC.
New tile of 62933-4-4:
"Environmental issues on battery-based energy storage systems (BESS) with reused batteries –
requirements"
oSIST prEN IEC 62933-4-4:2023
IEC CDV 62933-4-4 © IEC 2022 3 120/304/CDV

1 CONTENTS
3 FOREWORD. 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms and definitions . 7
8 4 General . 9
9 5 Identifying environmental issues of EES systems . 9
10 5.1 General . 9
11 5.2 Guide for addressing environmental issues . 9
12 5.3 Aspects resulting from the implementation of reuse batteries in a BESS . 10
13 6 Environmental guidelines of EES system . 11
14 6.1 Environmental aspects resulting from a BESS with reuse batteries . 11
15 6.1.1 General . 11
16 6.1.2 Requirements at the design stage . 11
17 6.1.3 Requirements at the procurement and acquisition stage . 12
18 6.1.4 Requirements at the assembly and installation stage . 13
19 6.1.5 Requirements at the operation stage . 14
20 6.1.6 Requirements at the maintenance stage . 14
21 6.1.7 Requirements at the disassembly stage . 15
22 6.1.8 Requirements for customer information . 15
23 6.2 Guidelines on environment impacts on the BESS system . 15
24 6.3 Guidelines on environment impacts from the BESS system . 15
25 Annex A (informative) Battery Specific Emissions into Environment . 16
26 Annex B (informative) Reference to the IEC TS 62933-4-1 - Guidance on
27 environmental aspects . 18
28 Bibliography . 19
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31 INTERNATIONAL ELECTROTECHNICAL COMMISSION
32 ____________
34 Electrical energy storage (EES) systems
36 Part 4-4: Environmental issues on
37 battery-based energy storage systems (BESS) with reused batteries –
38 requirements
41 FOREWORD
42 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
43 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
44 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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50 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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70 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
71 indispensable for the correct application of this publication.
72 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
73 rights. IEC shall not be held responsible for identifying any or all such patent rights.
74 IEC 62933-4-4 has been prepared by subcommittee WG4: Environment issues, of IEC
75 technical committee TC120: Electrical Energy Storage (EES) System. It is an International
76 Standard.
78 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
80 Full information on the voting for its approval can be found in the report on voting indicated in
81 the above table.
82 The language used for the development of this International Standard is English.

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83 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
84 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
85 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
86 described in greater detail at www.iec.ch/publications.
87 The committee has decided that the contents of this document will remain unchanged until the
88 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
89 specific document. At this date, the document will be
90 • reconfirmed,
91 • withdrawn,
92 • replaced by a revised edition, or
93 • amended.
oSIST prEN IEC 62933-4-4:2023
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95 INTRODUCTION
96 The increased use of renewable energy is enhancing the decarbonization of energy production
97 by reducing CO2 emissions caused by the use of fossil fuels. The production of renewable
98 energy with solar and wind power is however associated with large temporal output fluctuations.
99 This causes increased voltage and frequency instabilities in the power grid. These irregularities
100 can be advantageously counteracted with battery-based energy storage systems (BESS).
101 Such battery-based energy storage systems can be assembled with reuse batteries coming
102 from other electric energy storage installations or electric vehicles.
103 The reuse of batteries enhances all facets of the life cycle thinking (LCT) by reducing premature
104 product obsolescence.
105 Reuse cells, modules or battery assemblies require a particular attention toward the possible
106 impact on the environment they will have due to their state of being a pre-aged component.
107 The impacts to the environment resulting from reuse batteries are reviewed and appropriate
108 requirements are defined.
109 This document complements, when reuse batteries are involved, the information and guidance
110 provided by IEC TS 62933-4-1.
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112 ELECTRICAL ENERGY STORAGE (EES) SYSTEMS
114 Part 4-4: ENVIRONMENTAL ISSUES ON
115 BATTERY-BASED ENERGY STORAGE SYSTEMS (BESS) WITH REUSE
116 BATTERIES - REQUIREMENTS
120 1 Scope
121 This part of the IEC 62933 series describes environmental issues when reuse batteries are
122 considered for a BESS.
123 It provides details and requirements for identifying and preventing environmental issues in each
124 life cycle stage i.e., from the design to the disassembly of such reuse batteries in a BESS.
126 2 Normative references
127 The following documents are referred to in the text in such a way that some or all of their content
128 constitutes requirements of this document. For dated references, only the edition cited applies.
129 For undated references, the latest edition of the referenced document (including any
130 amendments) applies.
131 IEC TS 62933-4-1: Electric Energy Storage System – Part 4-1: Guidance On Environmental
132 Issues.
134 3 Terms and definitions
135 For the purposes of this document, the following terms and definitions apply.
136 ISO and IEC maintain terminology databases for use in standardization at the following
137 addresses:
138 • IEC Electropedia: available at https://www.electropedia.org/
139 • ISO Online browsing platform: available at https://www.iso.org/obp
141 3.1
142 battery energy storage system
143 BESS
144 electrical energy storage system with an accumulation subsystem based on batteries with
145 secondary cells
146 Note 1 to entry: Battery energy storage systems include flow battery energy systems.
147 [SOURCE: IEC 60050-631 :2021]
oSIST prEN IEC 62933-4-4:2023
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