Energy efficiency and renewable energy sources - Common international terminology - Part 1: Energy efficiency (ISO/IEC 13273-1:2015)

This part of ISO/IEC 13273 contains transverse concepts and their definitions in the subject field of
energy efficiency. This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.

Energieeffizienz und erneuerbare Energiequellen - Gemeinsame Internationale Terminologie - Teil 1: Energieeffizienz (ISO/IEC 13273-1:2015)

Dieser Teil von ISO/IEC 13273 umfasst übergreifende Konzepte und ihre Definitionen im Bereich der Energieeffizienz. Diese horizontale Norm ist primär zur Nutzung durch technische Komitees vorgesehen, die Normen nach den Richtlinien des IEC Guide 108 erstellen.
Die technischen Komitees sind u. a. dafür verantwortlich, bei der Erstellung ihrer Veröffentlichungen, soweit anwendbar, horizontale Normen zu nutzen. Die Inhalte dieser horizontalen Norm gelten ausschließlich bei ausdrücklicher Verweisung auf dieselben oder bei Einbeziehung in die relevanten Publikationen.

Efficacité énergétique et sources d'énergie renouvelables - Terminologie internationale commune - Partie 1: Efficacité énergétique (ISO/IEC 13273-1:2015)

Energijska učinkovitost in obnovljivi energijski viri - Skupna mednarodna terminologija - 1. del: Energijska učinkovitost (ISO/IEC 13273-1:2015)

Ta del standarda ISO/IEC 13273 vsebuje prečne koncepte in njihove opredelitve na področju energijske učinkovitosti. Ta horizontalni standard je namenjen predvsem tehničnim odborom za pripravo standardov v skladu z načeli vodila IEC 108.
Ena od pristojnosti tehničnih odborov je, da med pripravo publikacij uporabljajo horizontalne standarde, kadar je to primerno. Vsebina tega horizontalnega standarda se ne uporablja, razen če je izrecno navedena ali zajeta v ustreznih publikacijah.

General Information

Status
Published
Public Enquiry End Date
20-Dec-2015
Publication Date
09-Nov-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Oct-2016
Due Date
24-Dec-2016
Completion Date
10-Nov-2016

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO/IEC 13273-1:2016
01-december-2016
1DGRPHãþD
SIST-TP CEN/CLC/TR 16103:2010
(QHUJLMVNDXþLQNRYLWRVWLQREQRYOMLYLHQHUJLMVNLYLUL6NXSQDPHGQDURGQD
WHUPLQRORJLMDGHO(QHUJLMVNDXþLQNRYLWRVW ,62,(&
Energy efficiency and renewable energy sources - Common international terminology -
Part 1: Energy efficiency (ISO/IEC 13273-1:2015)
Energieeffizienz und erneuerbare Energiequellen - Gemeinsame Internationale
Terminologie - Teil 1: Energieeffizienz (ISO/IEC 13273-1:2015)
Efficacité énergétique et sources d'énergie renouvelables - Terminologie internationale
commune - Partie 1: Efficacité énergétique (ISO/IEC 13273-1:2015)
Ta slovenski standard je istoveten z: EN ISO/IEC 13273-1:2016
ICS:
01.040.27 Prenos energije in toplote Energy and heat transfer
(Slovarji) engineering (Vocabularies)
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
SIST EN ISO/IEC 13273-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO/IEC 13273-1:2016

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SIST EN ISO/IEC 13273-1:2016


EN ISO/IEC 13273-1
EUROPEAN STANDARD

NORME EUROPÉENNE

February 2016
EUROPÄISCHE NORM
ICS 27.010 Supersedes CEN/CLC/TR 16103:2010
English Version

Energy efficiency and renewable energy sources -
Common international terminology - Part 1: Energy
efficiency (ISO/IEC 13273-1:2015)
Efficacité énergétique et sources d'énergie Energieeffizienz und erneuerbare Energiequellen -
renouvelables - Terminologie internationale commune Gemeinsame Internationale Terminologie - Teil 1:
- Partie 1: Efficacité énergétique (ISO/IEC 13273- Energieeffizienz (ISO/IEC 13273-1:2015)
1:2015)
This European Standard was approved by CEN on 25 January 2016.

CEN and 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 CEN and 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 CEN and CENELEC member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN and CENELEC members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and United Kingdom.







CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/IEC 13273-1:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO/IEC 13273-1:2016
EN ISO/IEC 13273-1:2016 (E)
Contents Page
European foreword . 3
2

---------------------- Page: 4 ----------------------

SIST EN ISO/IEC 13273-1:2016
EN ISO/IEC 13273-1:2016 (E)
European foreword
The text of ISO/IEC 13273-1:2015 has been prepared by Technical Committee ISO/IEC JPC 2 “Joint
Project Committee - Energy efficiency and renewable energy sources - Common terminology” of the
International Organization for Standardization (ISO) and the International Electrotechnical Commission
(IEC) and has been taken over as EN ISO/IEC 13273-1:2016.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2016, and conflicting national standards shall
be withdrawn at the latest by August 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes CEN/CLC/TR 16103:2010.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO/IEC 13273-1:2015 has been approved by CEN as EN ISO/IEC 13273-1:2016 without any
modification.

3

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SIST EN ISO/IEC 13273-1:2016

---------------------- Page: 6 ----------------------

SIST EN ISO/IEC 13273-1:2016
INTERNATIONAL ISO/IEC
STANDARD 13273-1
First edition
2015-06-01
Energy efficiency and renewable
energy sources — Common
international terminology —
Part 1:
Energy efficiency
Efficacité énergétique et sources d’énergie renouvelables —
Terminologie internationale commune —
Partie 1: Efficacité énergétique
Reference number
ISO/IEC 13273-1:2015(E)
©
ISO/IEC 2015

---------------------- Page: 7 ----------------------

SIST EN ISO/IEC 13273-1:2016
ISO/IEC 13273-1:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2015
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO/IEC 2015 – All rights reserved

---------------------- Page: 8 ----------------------

SIST EN ISO/IEC 13273-1:2016
ISO/IEC 13273-1:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to energy . 1
3.2 Terms related to energy management systems . 4
3.3 Terms related to energy performance . 5
3.4 Terms related to energy efficiency . . 6
Annex A (Informative)Methodology used to develop the vocabulary . 8
Annex B (informative) Useful energy/Energy loss/ Recovered energy/Wasted energy .13
Bibliography .14
© ISO/IEC 2015 – All rights reserved iii

---------------------- Page: 9 ----------------------

SIST EN ISO/IEC 13273-1:2016
ISO/IEC 13273-1:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/IEC JPC2, Energy efficiency and renewable energy
sources — Common terminology.
ISO/IEC 13273 consists of the following parts, under the general title Energy efficiency and renewable
energy sources — Common international terminology:
— Part 1: Energy efficiency
— Part 2: Renewable energy sources
iv © ISO/IEC 2015 – All rights reserved

---------------------- Page: 10 ----------------------

SIST EN ISO/IEC 13273-1:2016
ISO/IEC 13273-1:2015(E)

Introduction
The aim of this part of ISO/IEC 13273 is to support activities related to energy and that deal with
energy efficiency. The terms were selected based upon their relevance and transverse nature. This
International Standard is a horizontal standard in accordance with IEC Guide 108. It addresses the
fundamental principles and concepts of energy efficiency and energy management terminology, which
is relevant to a number of technical committees, with the goal of improving coherence and common
characteristics for energy terms. This International Standard does not address terms specific to topics
such as environmental sustainability or nuclear energy but rather transverse energy terminology.
It is intended to be of help to technical practitioners and other interested parties who either use or
develop International Standards in these subject fields.
With the growth in the number of International Standards that directly or indirectly relate to energy,
there is an increasing need for an agreement on common language in the domain.
Figure 1 — Vocabulary structure
This part of ISO/IEC 13273 deals with concepts belonging to the general subject field of energy and,
within that, transverse concepts in the field of energy efficiency. For renewable energy sources see
ISO/IEC 13273-2.
The arrangement of terms and definitions in this International Standard is based upon concept systems
that show corresponding relationships among energy efficiency and renewable energy sources concepts
(see Figures A.4 to A.8 for additional diagrams on each group of terms). This arrangement provides
users with a structured view of transverse energy concepts and facilitates their understanding. This
terminology promotes a common understanding among all parties involved in energy efficiency and
facilitates effective communication. This part of ISO/IEC 13273 includes terms and definitions that
are commonly used in energy efficiency. The organization of terms is illustrated in Figure 1. This
International Standard is a first effort in the development of a complete set of terms related to energy,
and will be updated as further terms and definitions are agreed upon. (See Clause A.3, Figure A.4) .
© ISO/IEC 2015 – All rights reserved v

---------------------- Page: 11 ----------------------

SIST EN ISO/IEC 13273-1:2016

---------------------- Page: 12 ----------------------

SIST EN ISO/IEC 13273-1:2016
INTERNATIONAL STANDARD ISO/IEC 13273-1:2015(E)
Energy efficiency and renewable energy sources —
Common international terminology —
Part 1:
Energy efficiency
1 Scope
This part of ISO/IEC 13273 contains transverse concepts and their definitions in the subject field of
energy efficiency. This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
This clause has been maintained to match the numbering of ISO/IEC 13273-2 and for potential future use.
3 Terms and definitions
3.1 Terms related to energy
3.1.1
energy
E
capacity of a system to produce external activity or to perform work
Note 1 to entry: Commonly the term energy is used for electricity, fuel, steam, heat, compressed air and other like
media.
Note 2 to entry: Energy is commonly expressed as a scalar quantity.
Note 3 to entry: Work as used in this definition means external supplied or extracted energy to a system. In
mechanical systems, forces in or against direction of movement; in thermal systems, heat supply or heat removal.
[SOURCE: 1986 World Energy Conference Energy Terminology glossary, modified – The word “the” at
the beginning of the description was removed, the symbols were added as was the Note 1 to entry from
ISO 50001:2011.]
3.1.2
energy carrier
substance or medium that can transport energy
EXAMPLE Electricity, hydrogen, fuels.
© ISO/IEC 2015 – All rights reserved 1

---------------------- Page: 13 ----------------------

SIST EN ISO/IEC 13273-1:2016
ISO/IEC 13273-1:2015(E)

3.1.3
feedstock energy
energy (3.1.1) of material used for purposes other than producing work or activity
EXAMPLE Crude oil injected into steel smelting is for deoxidization but it contributes to the energy content
in a limited manner.
Note 1 to entry: Care is necessary to ensure that the energy content of materials is properly accounted for in the
energy balance.
3.1.4
energy source
material, natural resource or technical system from which energy (3.1.1) can be extracted or recovered
Note 1 to entry: A press spring, flywheel, or battery are examples of a technical system used as an energy source.
3.1.5
energy storage
action or method used to accumulate, retain and release energy (3.1.1) for later use in an energy using
system (3.1.9)
Note 1 to entry: Energy storage is an important concept in terms of renewable energy, see ISO/IEC 13273-2, 3.1.5
for additional information.
3.1.6
primary energy
energy (3.1.1) that has not been subjected to energy conversion (3.1.7)
Note 1 to entry: Primary energy can be either a non-renewable or renewable energy or a combination of both.
[SOURCE: ISO 16818-3.177:2008, modified – the word “any” was deleted and the term energy conversion
and reference was added; the phrase “or transformation process” was deleted; Note 1 to entry was added.]
3.1.7
energy conversion
transformation of one energy carrier (3.1.2)-to another energy carrier or work
Note 1 to entry: The term “energy transformation” can be used in this sense.
3.1.8
cogeneration
energy conversion (3.1.7) from the same source into two or more utilized forms of energy in one common
controlled process
Note 1 to entry: Combined heat and power (CHP) is a specific implementation of cogeneration used for the
simultaneous production of heat and electricity.
3.1.9
energy using system
physical items with defined system boundaries (3.3.2), using energy (3.1.1)
EXAMPLE Facility, building, part of a building, machine, equipment, product, etc.
3.1.10
energy end user
individual or a group of individuals or organization with responsibility for operating an energy using
system (3.1.9)
3.1.11
final energy
energy (3.1.1) as delivered to an energy using system (3.1.9)
Note 1 to entry: This concept is sometimes referred to as delivered energy.
2 © ISO/IEC 2015 – All rights reserved

---------------------- Page: 14 ----------------------

SIST EN ISO/IEC 1327
...

SLOVENSKI STANDARD
kSIST FprEN ISO/IEC 13273-1:2015
01-december-2015
(QHUJLMVNDXþLQNRYLWRVWLQREQRYOMLYLHQHUJLMVNLYLUL6NXSQDPHGQDURGQD
WHUPLQRORJLMDGHO(QHUJLMVNDXþLQNRYLWRVW ,62,(&
Energy efficiency and renewable energy sources - Common international terminology -
Part 1: Energy efficiency (ISO/IEC 13273-1:2015)
Energieeffizienz und erneuerbare Energiequellen - Gemeinsame Internationale
Terminologie - Teil 1: Energieeffizienz (ISO/IEC 13273-1:2015)
Efficacité énergétique et sources d'énergie renouvelables - Terminologie internationale
commune - Partie 1: Efficacité énergétique (ISO/IEC 13273-1:2015)
Ta slovenski standard je istoveten z: FprEN ISO/IEC 13273-1
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
kSIST FprEN ISO/IEC 13273-1:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015

---------------------- Page: 2 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015

EUROPEAN STANDARD
FINAL DRAFT
FprEN ISO/IEC 13273-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

September 2015
ICS 27.010 Will supersede CEN/CLC/TR 16103:2010
English Version
Energy efficiency and renewable energy sources - Common
international terminology - Part 1: Energy efficiency (ISO/IEC
13273-1:2015)
Efficacité énergétique et sources d'énergie renouvelables - Energieeffizienz und erneuerbare Energiequellen -
Terminologie internationale commune - Partie 1: Efficacité Gemeinsame Internationale Terminologie - Teil 1:
énergétique (ISO/IEC 13273-1:2015) Energieeffizienz (ISO/IEC 13273-1:2015)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical
Committee CEN/SS F23.

If this draft becomes a European Standard, CEN 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.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprEN ISO/IEC 13273-1:2015 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
FprEN ISO/IEC 13273-1:2015 (E)
Contents Page
European foreword .3

2

---------------------- Page: 4 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
FprEN ISO/IEC 13273-1:2015 (E)
European foreword
The text of ISO/IEC 13273-1:2015 has been prepared by Technical Committee ISO/IEC JPC 2 “Joint Project
Committee - Energy efficiency and renewable energy sources - Common terminology” of the International
Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) and has been
taken over as FprEN ISO/IEC 13273-1:2015 by Technical Committee CEN/SS F23 “Energy”
This document is currently submitted to the Unique Acceptance Procedure.
This document will supersede CEN/CLC/TR 16103:2010.
Endorsement notice
The text of ISO/IEC 13273-1:2015 has been approved by CEN as FprEN ISO/IEC 13273-1:2015 without any
modification.
3

---------------------- Page: 5 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015

---------------------- Page: 6 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
INTERNATIONAL ISO/IEC
STANDARD 13273-1
First edition
2015-06-01
Energy efficiency and renewable
energy sources — Common
international terminology —
Part 1:
Energy efficiency
Efficacité énergétique et sources d’énergie renouvelables —
Terminologie internationale commune —
Partie 1: Efficacité énergétique
Reference number
ISO/IEC 13273-1:2015(E)
©
ISO/IEC 2015

---------------------- Page: 7 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
ISO/IEC 13273-1:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2015
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO/IEC 2015 – All rights reserved

---------------------- Page: 8 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
ISO/IEC 13273-1:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to energy . 1
3.2 Terms related to energy management systems . 4
3.3 Terms related to energy performance . 5
3.4 Terms related to energy efficiency . . 6
Annex A (Informative)Methodology used to develop the vocabulary . 8
Annex B (informative) Useful energy/Energy loss/ Recovered energy/Wasted energy .13
Bibliography .14
© ISO/IEC 2015 – All rights reserved iii

---------------------- Page: 9 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
ISO/IEC 13273-1:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/IEC JPC2, Energy efficiency and renewable energy
sources — Common terminology.
ISO/IEC 13273 consists of the following parts, under the general title Energy efficiency and renewable
energy sources — Common international terminology:
— Part 1: Energy efficiency
— Part 2: Renewable energy sources
iv © ISO/IEC 2015 – All rights reserved

---------------------- Page: 10 ----------------------
kSIST FprEN ISO/IEC 13273-1:2015
ISO/IEC 13273-1:2015(E)

Introduction
The aim of this part of ISO/IEC 13273 is to support activities related to energy and that deal with
energy efficiency. The terms were selected based upon their relevance and transverse nature. This
International Standard is a horizontal standard in accordance with IEC Guide 108. It addresses the
fundamental principles and concepts of energy efficiency and energy management terminology, which
is relevant to a number of technical committees, with the goal of improving coherence and common
characteristics for energy terms. This International Standard does not address terms specific to topics
such as environmental sustainability or nuclear energy but rather transverse energy terminology.
It is intended to be of help to technical practitioners and other interested parties who either use or
develop International Standards in these subject fields.
With the growth in the number of International Standards that directly or indirectly relate to energy,
there is an increasing need for an agreement on common language in the domain.
Figure 1 — Vocabulary structure
This part of ISO/IEC 13273 deals with concepts belonging to the general subject field of energy and,
within that, transverse concepts in the field of energy efficiency. For renewable energy sources see
ISO/IEC 13273-2.
The arrangement of terms and definitions in this International Standard is based upon concept systems
that show corresponding relationships among energy efficiency and renewable energy sources concepts
(see Figures A.4 to A.8 for additional diagrams on each group of terms). This arrangement provides
users with a structured view of transverse energy concepts and facilitates their understanding. This
terminology promotes a common understanding among all parties involved in energy efficiency and
facilitates effective communication. This part of ISO/IEC 13273 includes terms and definitions that
are commonly used in energy efficiency. The organization of terms is illustrated in Figure 1. This
International Standard is a first effort in the development of a complete set of terms related to energy,
and will be updated as further terms and definitions are agreed upon. (See Clause A.3, Figure A.4) .
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kSIST FprEN ISO/IEC 13273-1:2015
INTERNATIONAL STANDARD ISO/IEC 13273-1:2015(E)
Energy efficiency and renewable energy sources —
Common international terminology —
Part 1:
Energy efficiency
1 Scope
This part of ISO/IEC 13273 contains transverse concepts and their definitions in the subject field of
energy efficiency. This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
This clause has been maintained to match the numbering of ISO/IEC 13273-2 and for potential future use.
3 Terms and definitions
3.1 Terms related to energy
3.1.1
energy
E
capacity of a system to produce external activity or to perform work
Note 1 to entry: Commonly the term energy is used for electricity, fuel, steam, heat, compressed air and other like
media.
Note 2 to entry: Energy is commonly expressed as a scalar quantity.
Note 3 to entry: Work as used in this definition means external supplied or extracted energy to a system. In
mechanical systems, forces in or against direction of movement; in thermal systems, heat supply or heat removal.
[SOURCE: 1986 World Energy Conference Energy Terminology glossary, modified – The word “the” at
the beginning of the description was removed, the symbols were added as was the Note 1 to entry from
ISO 50001:2011.]
3.1.2
energy carrier
substance or medium that can transport energy
EXAMPLE Electricity, hydrogen, fuels.
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3.1.3
feedstock energy
energy (3.1.1) of material used for purposes other than producing work or activity
EXAMPLE Crude oil injected into steel smelting is for deoxidization but it contributes to the energy content
in a limited manner.
Note 1 to entry: Care is necessary to ensure that the energy content of materials is properly accounted for in the
energy balance.
3.1.4
energy source
material, natural resource or technical system from which energy (3.1.1) can be extracted or recovered
Note 1 to entry: A press spring, flywheel, or battery are examples of a technical system used as an energy source.
3.1.5
energy storage
action or method used to accumulate, retain and release energy (3.1.1) for later use in an energy using
system (3.1.9)
Note 1 to entry: Energy storage is an important concept in terms of renewable energy, see ISO/IEC 13273-2, 3.1.5
for additional information.
3.1.6
primary energy
energy (3.1.1) that has not been subjected to energy conversion (3.1.7)
Note 1 to entry: Primary energy can be either a non-renewable or renewable energy or a combination of both.
[SOURCE: ISO 16818-3.177:2008, modified – the word “any” was deleted and the term energy conversion
and reference was added; the phrase “or transformation process” was deleted; Note 1 to entry was added.]
3.1.7
energy conversion
transformation of one energy carrier (3.1.2)-to another energy carrier or work
Note 1 to entry: The term “energy transformation” can be used in this sense.
3.1.8
cogeneration
energy conversion (3.1.7) from the same source into two or more utilized forms of energy in one common
controlled process
Note 1 to entry: Combined heat and power (CHP) is a specific implementation of cogeneration used for the
simultaneous production of heat and electricity.
3.1.9
energy using system
physical items with defined system boundaries (3.3.2), using energy (3.1.1)
EXAMPLE Facility, building, part of a building, machine, equipment, product, etc.
3.1.10
energy end user
individual or a group of individuals or organization with responsibility for operating an energy using
system (3.1.9)
3.1.11
final energy
energy (3.1.1) as delivered to an energy using system (3.1.9)
Note 1 to entry: This concept is sometimes referred to as delivered energy.
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ISO/IEC 13273-1:2015(E)

Note 2 to entry: See also Annex B.
3.1.11.1
applied energy
energy (3.1.1) used for the intended purpose of the energy using system (3.1.9)
Note 1 to entry: to entry The system boundaries can be chosen based on the pu
...

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