EN IEC 62932-1:2020
(Main)Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects
Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects
IEC 62932-1:2020 relates to flow battery energy systems (FBES) used in electrical energy storage (EES) applications and provides the main terminology and general aspects of this technology, including terms necessary for the definition of unit parameters, test methods, safety and environmental issues.
Flussbatterie-Energiesysteme für stationäre Anwendungen - Teil 1: Terminologie und allgemeine Aspekte
Systèmes de production d’énergie de batteries d’accumulateurs à circulation d'électrolyte pour applications stationnaires – Partie 1: Terminologie et aspects généraux
L'IEC 62932-1:2020 traite des systèmes de production d’énergie à batteries d’accumulateurs à circulation d’électrolyte (FBES – Flow Battery Energy Systems) utilisés dans les applications de stockage d'énergie électrique (EES – Electrical Energy Storage) et fournit la terminologie principale et indique les aspects généraux de cette technologie, y compris les termes nécessaires à la définition des paramètres unitaires, des méthodes d’essai, de la sécurité et des problèmes environnementaux.
Energijski sistemi pretočnih baterij za vgrajeno opremo - 1. del: Terminologija in splošni vidiki
General Information
Overview
EN IEC 62932-1:2020 (IEC 62932-1:2020) - "Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects" - is the foundational standard that defines the terminology, high‑level architecture and general aspects of flow battery energy systems (FBES) used in stationary electrical energy storage (EES). Published by CLC/CENELEC and originating from IEC TC 21, this part establishes consistent terms and conceptual boundaries needed for specifying unit parameters, test methods, safety and environmental considerations.
Key topics
The standard focuses on clear, standardized language and system descriptions to support design, testing and regulation of flow battery systems. Major technical topics include:
- Core terminology and abbreviations (e.g., FBES, FBS, BMS, BSS, PCS, flow cell, energy storage fluid)
- System-level diagrams and component boundaries - illustrations and descriptions for a Flow Battery System (FBS) and a Flow Battery Energy System (FBES)
- Component descriptions - stacks, fluid circulation system, tanks, pumps, sensors and power conversion interfaces (Annex A informative)
- Operational terms - charge/discharge, end of charge/discharge, fully charged/discharged, hot/cold standby, grid‑connected state
- Performance and efficiency concepts - energy efficiency definitions inclusive of auxiliary and parasitic loads
- Safety and environmental language - emergency stop/shutdown, gas release, ground fault, ambient temperature and other terms relevant to safety assessments and environmental impact
- Chemistry classification - informative overview of example chemistries and hybrid flow battery types (Annex B)
Practical applications and users
This standard is essential for stakeholders working with stationary flow battery storage for grid and behind‑the‑meter applications:
- Manufacturers - to align product documentation, test procedures and data sheets
- System integrators and EPCs - to define system boundaries and interface requirements when integrating FBES with power conversion systems and plants
- Test laboratories and certification bodies - to ensure consistent terminology when developing and applying test methods and safety evaluations
- Utilities and project developers - for specification, procurement and lifecycle planning of grid‑scale and community energy storage
- Regulators and standards committees - as a reference for creating technical regulations and subsequent parts of the IEC 62932 series
Related standards
EN IEC 62932-1 is the Part 1 foundational document in the IEC 62932 series. It cites and aligns terminology where applicable with other IEC/ISO resources such as:
- IEC Electropedia and ISO Online Browsing Platform (terminology databases)
- Referenced IEC standards used for definition sources (e.g., IEC 61427‑2, IEC 62933‑1)
By standardizing language, EN IEC 62932-1:2020 improves clarity across design, testing, procurement and regulatory workflows for flow battery energy systems in stationary energy storage projects.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2021
Energijski sistemi pretočnih baterij za vgrajeno opremo - 1. del: Terminologija in
splošni vidiki
Flow battery energy systems for stationary applications - Part 1: Terminology and general
aspects
Ta slovenski standard je istoveten z: EN IEC 62932-1:2020
ICS:
29.220.99 Drugi členi in baterije Other cells and batteries
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62932-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 29.220.99
English Version
Flow battery energy systems for stationary applications - Part 1:
Terminology and general aspects
(IEC 62932-1:2020)
Systèmes de production d'énergie de batteries Flussbatterie-Energiesysteme für stationäre Anwendungen
d'accumulateurs à circulation d'électrolyte pour applications - Teil 1: Terminologie und allgemeine Aspekte
stationnaires - Partie 1: Terminologie et aspects généraux (IEC 62932-1:2020)
(IEC 62932-1:2020)
This European Standard was approved by CENELEC on 2020-03-24. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62932-1:2020 E
European foreword
The text of document 21/1027/FDIS, future edition 1 of IEC 62932-1, prepared by IEC/TC 21
"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62932-1:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-12-24
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-03-24
document have to be withdrawn
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.
Endorsement notice
The text of the International Standard IEC 62932-1:2020 was approved by CENELEC as a European
Standard without any modification.
IEC 62932-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
colour
inside
Flow battery energy systems for stationary applications –
Part 1: Terminology and general aspects
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.220.99 ISBN 978-2-8322-7852-9
– 2 – IEC 62932-1:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 12
4 Descriptive overview of the flow battery . 12
4.1 Diagram of a flow battery system (FBS) . 12
4.2 Component descriptions and the boundaries . 13
4.3 Diagram of a flow battery energy system (FBES) . 13
4.4 Component descriptions and the boundaries of FBES . 14
Annex A (informative) Components of the flow battery energy system . 15
A.1 General . 15
A.2 Stacks – Revised description . 15
A.3 Fluid system . 15
Annex B (informative) Types of chemistries . 16
Figure 1 – Flow battery system (FBS) . 13
Figure 2 – Flow battery energy system (FBES) . 14
Table B.1 – Example chemistries of flow batteries . 16
Table B.2 – Example chemistries of hybrid flow batteries . 16
IEC 62932-1:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62932-1 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1027/FDIS 21/1037/RVD
Full information on the voting for the approval of this International Standard 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 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.
– 4 – IEC 62932-1:2020 © IEC 2020
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour 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.
IEC 62932-1:2020 © IEC 2020 – 5 –
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
1 Scope
This part of IEC 62932 relates to flow battery energy systems (FBES) used in electrical energy
storage (EES) applications and provides the main terminology and general aspects of this
technology, including terms necessary for the definition of unit parameters, test methods, safety
and environmental issues.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
ambient temperature
environmental temperature around a flow battery energy system
3.1.2
auxiliary energy
energy consumed by all the auxiliary equipment and components of a flow battery and of a flow
battery energy system
Note 1 to entry: The equipment and components include, but are not limited to, battery management system, battery
support system, fluid circulation system.
3.1.3
battery management system
BMS
electronic system associated with a flow battery energy system which monitors and/or manages
its state, calculates secondary data, reports that data and/or controls its environment to
influence the flow battery energy system’s performance and/or service life
Note 1 to entry: The function of the battery management system can be fully or partially assigned to the battery
pack and/or to equipment that uses flow battery energy store systems.
[SOURCE: IEC 61427-2:2015, 3.8, modified – admitted terms "battery management unit" and
"BMU" omitted, "battery" replaced by "flow battery energy system", Notes 2 to 4 deleted.]
– 6 – IEC 62932-1:2020 © IEC 2020
3.1.4
battery support system
BSS
auxiliary units, such as heat exchanger, ventilation system, safety system, and inert gas system,
used in an FBES, and which are not stacks, or part of the fluid circulation system, power
conversion system, or battery management system
Note 1 to entry: The battery support system is controlled by the battery management system.
3.1.5
charge
charging
operation during which a secondary cell or battery is supplied with electric energy
from an external circuit which results in chemical changes within the cell and thus the storage
of energy as chemical energy
Note 1 to entry: A charge operation is defined by its maximum voltage, current, duration and other conditions as
specified by the manufacturer.
[SOURCE: IEC 60050-482:2004, 482-05-27, modified – term "charging of a battery" separated
into "charge" and "charging" with "of a battery" as the domain, and addition of the note.]
3.1.6
cold standby
standby state requiring warm up before a demand to operate can be met
Note 1 to entry: A cold standby state may apply to redundant or stand-alone items.
Note 2 to entry: In this context "warm up" includes meeting any conditions required to operate as required (e.g.
achieving the required temperature, speed, pressure).
[SOURCE: IEC 60050-192:2015, 192-02-11, modified – "state" omitted from the term, and the
domain, "of an item", deleted.]
3.1.7
discha
...
Frequently Asked Questions
EN IEC 62932-1:2020 is a standard published by CLC. Its full title is "Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects". This standard covers: IEC 62932-1:2020 relates to flow battery energy systems (FBES) used in electrical energy storage (EES) applications and provides the main terminology and general aspects of this technology, including terms necessary for the definition of unit parameters, test methods, safety and environmental issues.
IEC 62932-1:2020 relates to flow battery energy systems (FBES) used in electrical energy storage (EES) applications and provides the main terminology and general aspects of this technology, including terms necessary for the definition of unit parameters, test methods, safety and environmental issues.
EN IEC 62932-1:2020 is classified under the following ICS (International Classification for Standards) categories: 29.220.99 - Other cells and batteries. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN IEC 62932-1:2020 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
La norme EN IEC 62932-1:2020 relative aux systèmes de batteries à flux pour les applications stationnaires est un document fondamental qui établit un cadre clair et cohérent pour ce type de technologie innovante. En définissant la terminologie et les aspects généraux des systèmes de stockage d'énergie électrique (EES) utilisant des batteries à flux, cette norme est essentielle pour les professionnels et les chercheurs du secteur. Le champ d'application de la norme couvre des éléments cruciaux tels que les paramètres unitaires, les méthodes d'essai, ainsi que les problématiques de sécurité et environnementales liées à l'utilisation des systèmes de batteries à flux. Cela souligne son importance pour garantir une compréhension commune entre les parties prenantes, favorisant ainsi l'harmonisation des pratiques dans le domaine des applications de stockage d'énergie. Parmi les points forts de cette norme, on note la clarté des définitions, qui permet une meilleure communication entre les concepteurs, les ingénieurs et les utilisateurs finaux. En outre, l'accent mis sur les enjeux de sécurité et d'environnement témoigne d'une préoccupation croissante pour le développement durable dans le secteur de l'énergie. La norme fournit également une base solide pour les futures évolutions réglementaires et techniques, rendant son adoption d'autant plus pertinente dans un contexte de transition énergétique. En résumé, la norme EN IEC 62932-1:2020 est un élément clé pour le développement et la mise en œuvre de systèmes de batteries à flux, stimulant l'innovation tout en assurant la sécurité et la durabilité des applications de stockage d'énergie. Sa contribution à la compréhension et à l'acceptation des technologies de batteries à flux est indéniable, ce qui en fait un document de référence incontournable pour les acteurs du secteur.
The standard EN IEC 62932-1:2020 is a pivotal document within the realm of flow battery energy systems (FBES) for stationary applications. By encompassing a comprehensive scope, it lays the groundwork for understanding the terminology and general aspects integral to this innovative technology, which is essential for modern electrical energy storage (EES) solutions. One of the notable strengths of this standard is its well-defined glossary of terms, which facilitates clear communication among industry stakeholders. This clarity is vital for the precise definition of unit parameters, ensuring that engineers, researchers, and manufacturers operate with a shared understanding of the technical language surrounding flow battery energy systems. This thorough terminology framework aids in minimizing ambiguity, thus enhancing collaboration and interoperability among different systems and technologies. Moreover, the standard addresses critical components such as test methods, safety protocols, and environmental considerations, reinforcing its relevance in today's energy landscape. By establishing guidelines for testing methodologies, it allows for a consistent and reliable evaluation of FBES, which is essential for determining performance metrics and ensuring regulatory compliance. The inclusion of safety and environmental issues further highlights the standard's comprehensive approach, as it ensures that flow battery energy systems are developed and deployed responsibly with minimal ecological impact. Overall, EN IEC 62932-1:2020 stands out as a foundational document that not only enhances understanding of flow battery technology but also supports the development of industry best practices. Its focus on terminology, test methods, and safety underscores its importance to the evolving field of electrical energy storage, ensuring that stakeholders are equipped to advance the adoption and innovation of flow battery energy systems effectively.
標準EN IEC 62932-1:2020は、定常的なアプリケーション向けのフローバッテリーエネルギーシステム（FBES）に関する重要な指針を提供します。この文書は、電気エネルギー貯蔵（EES）アプリケーションにおけるフローバッテリーシステムの全体的な理解を促進するための基本的な用語と一般的な側面を定義しています。 この標準の主な強みは、FBESに必要なユニットパラメータやテスト方法、安全性、環境への影響に関する明確な定義を提供することにあります。特に、フローバッテリーの技術的な側面を正確に理解するために不可欠な用語が整理されており、研究者や技術者、製品開発者にとって非常に有用です。 また、EN IEC 62932-1:2020は、フローバッテリーシステムが直面する安全性と環境問題に対する認識を高め、持続可能なエネルギーソリューションに向けた取り組みが一層進むことを期待させる内容となっています。このように、標準が提供する用語と情報は、フローバッテリーエネルギーシステムの分野での一貫性と透明性を確保し、さまざまなプロジェクトや政策における準拠性を支えます。 総じて、EN IEC 62932-1:2020はフローバッテリーの技術に関連する重要な情報を集約した文書であり、その範囲、強み、そして現代のエネルギーシステムにおける関連性から、多くの専門家や関係者にとって必読の標準となるでしょう。
SIST EN IEC 62932-1:2021 표준은 정지형 애플리케이션을 위한 흐름 배터리 에너지 시스템(FBES)에 대해 다루고 있습니다. 이 표준은 전기 에너지 저장(EES) 애플리케이션에서 사용되는 흐름 배터리 기술의 기본 용어와 일반적 측면을 제공합니다. 표준에서 정의된 여러 용어는 단위 매개변수, 시험 방법, 안전 및 환경 문제를 포함하여 흐름 배터리 시스템의 명확한 이해에 필수적입니다. 이 표준의 강점 중 하나는 흐름 배터리 시스템의 기술적 특성을 체계적으로 정리하고 있다는 점입니다. 용어의 명확한 정의는 업계 관계자들이 일관된 기준을 바탕으로 소통할 수 있게 하여, 기술 발전과 혁신을 촉진합니다. 또한, 정지형 애플리케이션에서 흐름 배터리의 중요성이 증가함에 따라 이 표준의 관련성은 더욱 부각되고 있습니다. SIST EN IEC 62932-1:2021은 흐름 배터리 에너지 시스템의 안전성과 환경적 측면에 대한 지침도 포함하고 있어, 기술의 적용에 있어 신뢰성을 높입니다. 이러한 요소는 사용자와 개발자 모두에게 유용하며, EES 솔루션의 지속 가능성을 증대시키는 데 기여합니다. 이처럼, 표준은 흐름 배터리 기술의 과학적인 기초를 제공함으로써 산업 전반에 긍정적인 영향을 미칠 것입니다.
Die Norm EN IEC 62932-1:2020, die sich mit Flow-Batteriesystemen für stationäre Anwendungen beschäftigt, bietet einen umfassenden Überblick über die Terminologie und allgemeine Aspekte dieser vielversprechenden Technologie. Der Anwendungsbereich dieser Norm erstreckt sich über die Definition der grundlegenden Begriffe, die unerlässlich sind für das Verständnis von Fließbatteriesystemen (FBES) im Rahmen von elektrischen Energiespeicheranwendungen (EES). Eine der Stärken der Norm ist ihre klare und präzise Definition der grundlegenden Terminologie, die für Fachleute und Anwender im Bereich der Energiespeicherung von großer Bedeutung ist. Durch die Standardisierung der Begriffe wird eine gemeinsame Verständigungsbasis geschaffen, die den Austausch von Informationen und die Entwicklung neuer Technologien erleichtert. Zudem werden wichtige Parameter, Testmethoden sowie Sicherheits- und Umweltaspekte behandelt, die für die Implementierung und den Betrieb von Flow-Batteriesystemen entscheidend sind. Die Relevanz dieser Norm kann nicht hoch genug eingeschätzt werden, da sie nicht nur die technische Grundlage für die Entwicklung von FBES legt, sondern auch dazu beiträgt, das Vertrauen in diese innovative Technologie zu stärken. In einer Zeit, in der nachhaltige Energielösungen zunehmend gefragt sind, bietet die Norm EN IEC 62932-1:2020 wertvolle Informationen, die sowohl für Hersteller als auch für Endanwender von Fließbatterien von großem Nutzen sind. Insgesamt stellt die Norm EIN IEC 62932-1:2020 einen entscheidenden Schritt in der Standardisierung von Flow-Batteriesystemen dar und fördert somit die Förderung und Akzeptanz dieser Technologie in der Energiewirtschaft.
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