IEC TS 62933-4-1:2017

IEC TS 62933-4-1 ®
Edition 1.0 2017-07
TECHNICAL
SPECIFICATION
Electrical energy storage (EES) systems –
Part 4-1: Guidance on environmental issues – General specification

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IEC TS 62933-4-1 ®
Edition 1.0 2017-07
TECHNICAL
SPECIFICATION
Electrical energy storage (EES) systems –

Part 4-1: Guidance on environmental issues – General specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.020.30 ISBN 978-2-8322-4604-7

– 2 – IEC TS 62933-4-1:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 10
5 Identifying environmental issues in EES systems . 10
5.1 General . 10
5.2 Viewpoint 1: Guide for addressing environmental issues (ISO Guide 64:2008) . 10
5.3 Viewpoint 2: System aspects . 11
5.3.1 General . 11
5.3.2 System to environment . 11
5.3.3 Environment to system . 11
5.4 Viewpoint 3: Electrical energy storage technology independence . 11
6 Environmental guidelines of EES systems . 13
6.1 General . 13
6.2 Guidelines for issues from the EES system to the environment . 13
6.3 Guidelines for issues from the environment to the EES system . 14
6.4 Guidelines for issues from the EES system to humans with a chronic impact . 14
Annex A (informative) Examples of potential issues that are not selected as issues
from the EES system to the environment . 15
Bibliography . 18

Figure 1 – EES system architecture in the two main EESS configurations . 12

Table 1 – Guidelines for issues from the EES system to the environment . 13
Table A.1 – Examples of potential issues that were not selected . 15
Table A.2 – Result of assessment using viewpoints 1, 2 and 3 . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –

Part 4-1: Guidance on environmental issues –
General specification
FOREWORD
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The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 62933-4-1 which is a technical specification, has been prepared by IEC technical
committee 120: Electrical Energy Storage (EES) Systems.

– 4 – IEC TS 62933-4-1:2017 © IEC 2017
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
120/93/DTS 120/98/RVDTS
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62933 series, published under the general title Electrical energy
storage (EES) systems, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
Electrical energy storage systems (EES systems) have been integrated into the grid systems.
The EES systems play one of the key roles in grid operation. Integrating the EES systems
with the grid systems may further bring benefits such as efficient utilization in renewable
energy sources. A variety of electrical energy storage technologies have been used widely in
small and large sizes, for residential, industrial and utility siting, and in renewable energy
stabilization and other applications. An EES system is an integrated system with components
that are well standardised, however, system aspects specific to EES systems have not been
well discussed. Furthermore, environmental issues for product level have been discussed
horizontally in other IEC documents; however, specific environmental aspects of systems
have not been well discussed. Therefore, a standard method for assessing environmental
issues in EES systems is indispensable.
Under these circumstances, this document describes, in accordance with ISO Guide 64:2008,
principles and approaches for environmental issues of EES systems in both normal and
abnormal operating conditions, and presents guidelines to address environmental impacts to
and from EES systems, including the chronic impacts on humans.

– 6 – IEC TS 62933-4-1:2017 © IEC 2017
ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –

Part 4-1: Guidance on environmental issues –
General specification
1 Scope
This part of IEC 62933, which is a Technical Specification, describes environmental issues
associated with electrical energy storage systems (EES systems), and presents guidelines to
address the environmental impacts to and from EES systems including the impacts to humans
due to chronic exposure associated with the mentioned environmental impacts.
It is the aim of this document to describe environmental issues that are uniquely and only
applicable to EES systems. However, it is not the aim of this document to describe
environmental issues that are applicable to any systems.
It is not the aim of this document to describe environmental issues associated with
components and products used in EES systems.
This document applies to all EES systems regardless of the type of electrical energy storage
technologies.
This document considers the issues in both normal and abnormal operating conditions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applie
...