Energy management systems - Guidelines for a phased implementation (ISO 50005:2021)

This document gives guidance for organizations on establishing a phased approach to implement an energy management system (EnMS). This phased approach is intended to support and simplify the implementation of an EnMS for all types of organizations, in particular for small and medium-sized organizations (SMOs).
This document gives guidance on the use of twelve core elements with four levels of maturity for each element to establish, implement, maintain and improve an EnMS that results in energy performance improvement.
It enables the user of this document to implement a phased approach to achieve a level of energy management appropriate to its objectives and to build a strong foundation which can subsequently be extended towards meeting the requirements of ISO 50001:2018. This document is consistent with ISO 50001:2018 but does not cover all of its requirements.

Energiemanagementsysteme - Leitfaden für eine phasenweise Umsetzung (ISO 50005:2021)

Dieses Dokument gibt Organisationen eine Anleitung für die Einführung eines Energiemanagementsystems (EnMS) im Rahmen eines phasenweisen Ansatzes. Dieser phasenweise Ansatz soll die Umsetzung eines EnMS für alle Arten von Organisationen, insbesondere für kleine und mittlere Organisationen (KMO), unterstützen und vereinfachen.
Dieses Dokument enthält eine Anleitung zur Verwendung von zwölf Kernelementen mit vier Reifegraden für jedes Element, um ein EnMS, das zu einer Verbesserung der energiebezogenen Leistung führt, einzurichten, umzusetzen, aufrechtzuerhalten und zu verbessern.
Es ermöglicht dem Anwender dieses Dokuments, einen phasenweisen Ansatz zu verfolgen, um eine seinen Zielen angemessene Stufe des Energiemanagements zu erreichen und eine solide Grundlage zu schaffen, die anschließend auf die Erfüllung der Anforderungen nach ISO 50001:2018 ausgeweitet werden kann. Dieses Dokument stimmt mit ISO 50001:2018 überein, deckt aber nicht alle ihre Anforderungen ab.

Systèmes de management de l'énergie - Lignes directrices pour une mise en œuvre par étapes (ISO 50005:2021)

Le présent document fournit aux organismes des recommandations pour mener une démarche par étapes de mise en œuvre d'un système de management de l'énergie. Cette démarche par étapes vise à soutenir et simplifier la mise en œuvre d'un système de management de l'énergie pour tous les types d'organismes, en particulier par les petits et moyens organismes.
Le présent document fournit des recommandations relatives à l'utilisation de douze éléments fondamentaux avec quatre niveaux de maturité pour chaque élément afin d'établir, de mettre en œuvre, d'entretenir et d'améliorer un système de management de l'énergie, conduisant à une amélioration de la performance énergétique.
Il permet à l'utilisateur du présent document de mettre en œuvre une démarche par étapes afin d'atteindre le niveau de management de l'énergie adapté à ses objectifs et d'établir une base solide qui peut ensuite être étendue pour répondre aux exigences de l'ISO 50001:2018. Le présent document est en cohérence avec l'ISO 50001:2018, mais n'en couvre pas toutes les exigences.

Sistemi upravljanja z energijo - Smernice za fazno uvajanje (ISO 50005:2021)

Ta dokument podaja smernice, namenjene organizacijam, za vzpostavitev faznega pristopa k uvajanju sistema upravljanja z energijo (EnMS). Namen faznega pristopa je podpreti in poenostaviti uvedbo sistema upravljanja z energijo v organizacijah vseh vrst, zlasti v malih in srednje velikih organizacijah (SMO).
Ta dokument podaja smernice za uporabo dvanajstih temeljnih elementov s štirimi stopnjami zrelosti posameznega elementa, katerih namen je vzpostavitev, uvedba, vzdrževanje in izboljšanje sistema upravljanja z energijo, ki izboljša energetsko učinkovitost.
Uporabniku tega dokumenta omogočajo uvajanje faznega pristopa za doseganje upravljanja z energijo na ravni, ki ustreza njegovim ciljem, ter postavitev trdnih temeljev, ki jih je nato mogoče razširiti za izpolnjevanje zahtev standarda ISO 50001:2018. Ta dokument je usklajen s standardom ISO 50001:2018, vendar pa ne vključuje vseh njegovih zahtev.

General Information

Status
Published
Public Enquiry End Date
28-Feb-2022
Publication Date
18-May-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-May-2022
Due Date
24-Jul-2022
Completion Date
19-May-2022

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SLOVENSKI STANDARD
SIST EN ISO 50005:2022
01-julij-2022
Sistemi upravljanja z energijo - Smernice za fazno uvajanje (ISO 50005:2021)
Energy management systems - Guidelines for a phased implementation (ISO
50005:2021)
Energiemanagementsysteme - Leitfaden für eine phasenweise Umsetzung (ISO
50005:2021)
Systèmes de management de l'énergie - Lignes directrices pour une mise en œuvre par
étapes (ISO 50005:2021)
Ta slovenski standard je istoveten z: EN ISO 50005:2022
ICS:
03.100.70 Sistemi vodenja Management systems
27.015 Energijska učinkovitost. Energy efficiency. Energy
Ohranjanje energije na conservation in general
splošno
SIST EN ISO 50005:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 50005:2022

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SIST EN ISO 50005:2022


EUROPEAN STANDARD EN ISO 50005

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2022
ICS 03.100.70; 27.015

English version

Energy management systems - Guidelines for a phased
implementation (ISO 50005:2021)
Systèmes de management de l'énergie - Lignes Energiemanagementsysteme - Leitfaden für eine
directrices pour une mise en œuvre par étapes (ISO phasenweise Umsetzung (ISO 50005:2021)
50005:2021)
This European Standard was approved by CEN on 27 April 2022.

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 and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.






















CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2022 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. EN ISO 50005:2022 E
reserved worldwide for CEN national Members and for
CENELEC Members.

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SIST EN ISO 50005:2022
EN ISO 50005:2022 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 50005:2022
EN ISO 50005:2022 (E)
European foreword
The text of ISO 50005:2021 has been prepared by Technical Committee ISO/TC 301 "Energy
management and energy savings” of the International Organization for Standardization (ISO) and has
been taken over as EN ISO 50005:2022 by Technical Committee CEN-CENELEC/ JTC 14 “Energy
management and energy efficiency in the framework of energy transition” the secretariat of which is
held by UNI.
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 November 2022, and conflicting national standards
shall be withdrawn at the latest by November 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN-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 standards body.
A complete listing of these bodies can be found on the CEN and CENELEC websites.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 50005:2021 has been approved by CEN-CENELEC as EN ISO 50005:2022 without any
modification.

3

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SIST EN ISO 50005:2022

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SIST EN ISO 50005:2022
INTERNATIONAL ISO
STANDARD 50005
First edition
2021-09
Energy management systems —
Guidelines for a phased
implementation
Systèmes de management de l'énergie — Lignes directrices pour une
mise en œuvre par étapes
Reference number
ISO 50005:2021(E)
©
ISO 2021

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 The maturity model approach to implementing an EnMS . 1
4.1 Explanation and structure of the maturity model . 1
4.2 Phased implementation of an EnMS using the maturity model . 3
4.2.1 General. 3
4.2.2 Assess the organization’s initial situation . 3
4.2.3 Set and confirm a goal for the phased implementation . 4
4.2.4 Set up a simple business case . 5
4.2.5 Set up a project plan . 5
4.2.6 Monitor the implementation of the project plan . 5
4.2.7 Gap analysis versus ISO 50001:2018 . 5
5 Description of elements and levels . 5
5.1 Element 1 — Context of the organization. 5
5.2 Element 2 — Leadership . 7
5.3 Element 3 — Resources . 8
5.4 Element 4 — Energy review . 9
5.5 Element 5 — Energy performance indicators and energy baselines .11
5.6 Element 6 — Objectives, energy targets and action plans .13
5.7 Element 7 — Competence and awareness .14
5.8 Element 8 — Operations and maintenance .15
5.9 Element 9 — Procurement and design .16
5.10 Element 10 – Process for communication and control of documented information .17
5.11 Element 11 — Monitoring, measurement, analysis and evaluation of energy
performance .18
5.12 Element 12 — Management review and improvement .19
Annex A (informative) Continual improvement and advancing of the EnMS .22
Annex B (informative) Level version of the maturity model .25
Bibliography .37
© ISO 2021 – All rights reserved iii

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SIST EN ISO 50005:2022
ISO 50005:2021(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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 301, Energy management and energy
savings.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

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ISO 50005:2021(E)

Introduction
0.1 General
It is important to engage all types of organizations and, in particular, small and medium-sized
organizations (SMOs) into the broad scale implementation of energy management because of the
significant potential such organizations have for energy performance improvement, associated energy
cost savings and reductions in greenhouse gas (GHG) emissions.
This document is intended to enable organizations to initiate and improve energy management
practices by following a systematic approach with appropriate effort given their resources and context,
resulting in continual energy performance improvement.
This document provides practical guidance to undertake a phased implementation of an energy
management system (EnMS), e.g. by using in-house capacity. The functioning EnMS can subsequently
be extended to meet the requirements of ISO 50001. A well-planned phased implementation of an EnMS
can reduce costs and the use of other resources while providing near-term success on which to build.
This can help in overcoming barriers for implementation in organizations with limited resources, such
as SMOs.
This document explains a phased implementation approach using twelve core elements based on
ISO 50001:2018. It outlines the content of the elements and describes four different levels of maturity
for each element. Annex A includes best practices for continual improvement of an EnMS by using a
phased approach. An organization can select appropriate tools to find an effective and efficient approach
to achieve the desired maturity of its EnMS. The element(s) and the corresponding maturity level(s)
targeted depend on the organization’s objectives and strategic direction. The EnMS can be integrated
with other management systems to benefit from common structures.
In this document, both terms “energy performance improvement” (as defined in ISO 50001:2018) and
“energy savings” are used. Energy savings is considered as a subset of energy performance improvement
in this document.
0.2 Advantages of a phased implementation
Implementing an EnMS in an organization can be a challenge. Organizations can have limited resources
(e.g. knowledge and availability of personnel) in order to successfully implement an EnMS. A phased
implementation results in several benefits to the organization. The phased implementation described
in this document offers flexibility that allows an organization to:
— decide the scope and pace of its EnMS implementation to suit available resources and organizational
needs;
— decide on the elements to target and the desired maturity level(s);
— start with areas that indicate the greatest potential for energy performance improvement, return
on investment or align with current operational practices;
— stimulate a positive culture towards energy management;
— deliver simple and/or low-cost energy performance improvements and associated energy cost
savings, emission reductions and other benefits;
— build initial successes to increase credibility and thus secure commitment and support for further
development of the EnMS;
— build a strong foundation to expand an existing EnMS towards meeting the requirements of
ISO 50001.
© ISO 2021 – All rights reserved v

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SIST EN ISO 50005:2022

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SIST EN ISO 50005:2022
INTERNATIONAL STANDARD ISO 50005:2021(E)
Energy management systems — Guidelines for a phased
implementation
1 Scope
This document gives guidance for organizations on establishing a phased approach to implement an
energy management system (EnMS). This phased approach is intended to support and simplify the
implementation of an EnMS for all types of organizations, in particular for small and medium-sized
organizations (SMOs).
This document gives guidance on the use of twelve core elements with four levels of maturity for each
element to establish, implement, maintain and improve an EnMS that results in energy performance
improvement.
It enables the user of this document to implement a phased approach to achieve a level of energy
management appropriate to its objectives and to build a strong foundation which can subsequently
be extended towards meeting the requirements of ISO 50001:2018. This document is consistent with
ISO 50001:2018 but does not cover all of its requirements.
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) applies.
ISO 50001:2018, Energy management systems — Requirements with guidance for use
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 50001:2018 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 The maturity model approach to implementing an EnMS
4.1 Explanation and structure of the maturity model
Using a maturity model helps an organization to assess the effectiveness of its current business
processes in order to follow a systematic and organized approach in achieving improved performance.
The maturity model that forms the basis of this document consists of twelve core elements of energy
management with four levels of maturity for each element.
The elements in this document either refer to a clause of ISO 50001:2018 or an important subclause
such as energy review.
The maturity model provides a simplified, systematic framework to implement and improve an EnMS
suitable to the organization’s needs and capabilities by using a phased approach. It describes criteria
including detailed behaviours, practices and processes. The organization initially uses the maturity
© ISO 2021 – All rights reserved 1

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

model to understand its current state and to establish initial improvement goals. Then the organization
can implement EnMS improvements in phases.
As the organization progresses from its individual starting point towards the desired level of EnMS
maturity, it should improve energy performance. This improved energy performance is understood as
an improvement in energy efficiency or energy consumption related to energy use which can result in
reduced energy costs. The twelve elements of the maturity model are described in Clause 5. For each
level in an element, the given criteria describe(s) “what” needs to be in place at that level. Where not
stated otherwise, the criteria are addressed to the organization. This model does not provide specific
approaches on “how” the level can be achieved. The elements are divided into topics for clarity and to
make it easier for the user to implement the criteria for the elements.
Based on the analysis of the current state of energy management practices, the organization can choose
an appropriate speed of implementation and the desired level of maturity for each element. Whatever be
the starting point, the organization needs to work on each element. It is possible that the organization
needs additional resources (e.g. time, personnel, knowledge, budget).
Predictability, effectiveness and control of the EnMS should improve as the organization moves up to
higher levels in each element. The maturity model provides a continuum along which progress can be
made incrementally from one level to the next. The four levels represent a progression from a low level
of energy management experience to a level approaching ISO 50001 conformity. The four levels can
generally be described as follows.
a) Level 1: Enabling energy management: initial management support, some awareness and
understanding of energy use and opportunities for energy savings, collection of some energy data
(e.g. energy bills), no systematic energy management practices.
b) Level 2: Enhancing energy management: energy policy in place, formal team, conduct basic analysis
of energy consumption and energy cost data, evaluate opportunities for energy savings, some
systematic energy management practices.
c) Level 3: Emerging EnMS: systematic energy management practices, energy management becomes
strategic, monitoring and review improved, legal compliance is part of the EnMS, the organization
learns.
d) Level 4: Established EnMS: continual improvement of the EnMS and energy performance, core
elements of ISO 50001 implemented, ready for gap analysis versus ISO 50001, if desired.
NOTE Reaching Level 4 for all twelve elements does not necessarily lead to meeting all the requirements of
ISO 50001:2018.
When using the maturity model, the organization should consider that for each topic under an element
the criteria for a certain level can include the criteria of the previous levels in a cumulative manner.
Although the levels build on each other, they do not necessarily have to be implemented in four
sequential steps. If, for example, the organization has planned to reach Level 3 of a certain element,
it does not have to first implement Level 1, Level 2 and then Level 3. It can implement Level 3 directly,
taking into account the criteria of Levels 1 and 2.
Where there are blanks in the element tables, no criteria (e.g. see Figure 1 Level 1) or no additional
criteria (e.g. see Figure 1 Level 3) are required at that level. This means to maintain the criteria
implemented at the previous level.
For organizations that want to enhance their EnMS, additional advice and best practices are given in
Annex A. A level version of the maturity model is given in Annex B. The twelve elements of the maturity
model are described in Tables 1 to 12 in Clause 5.
2 © ISO 2021 – All rights reserved

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

Figure 1 — Interpretation of “blanks” in the element tables
4.2 Phased implementation of an EnMS using the maturity model
4.2.1 General
The phased implementation is a project guideline consisting of elements and levels that target the
desired state of an EnMS. The starting point depends on the previous experience and situation of the
organization. It is also possible to focus only on some of the elements or topics individually. Nevertheless,
if all elements, topics and criteria for each level are implemented, then conformity to ISO 50001 can be
achieved with some additions and adjustments (see 4.2.7). An example of a practical procedure for the
phased implementation is given in 4.2.2 to 4.2.7.
4.2.2 Assess the organization’s initial situation
If the organization has no experience with a management system or specifically an EnMS, it is difficult
to estimate the work that lies ahead. The practical guidance to a phased implementation approach
provided in this document is based on the fact that every organization has some kind of energy
management in place. However, perhaps it is not well structured or does not cover all elements of good
practice of energy management.
It is often the case that some elements of an EnMS, such as energy performance improvement actions,
are in place at some level, but are not yet systematically implemented in the context of a management
system. The described elements and levels can be used as a self-assessment tool. A simple table can be
created for this purpose that gives an overview of which elements and topics are already addressed in
the organization and, if they do exist, at what level they are functioning with respect to the planned
EnMS (see Figure 2). The organization can assess what has already been implemented and what steps
still need to be taken.
Figure 2 — Initial process
© ISO 2021 – All rights reserved 3

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

Self-assessment is a good starting point to show to top management where the organization stands
with regard to an EnMS. Self-assessment should be used to determine the organization’s status, as well
as best practices both at an overall level and at the level of each element.
A level of a certain topic of an element is considered to be achieved when all listed criteria at that level
for the topic have been fulfilled. Achievement of a particular level of a certain topic of the element
requires that all lower-level criteria have been fulfilled.
The next step to pursue is determined by the goal of the organization for the phased implementation.
4.2.3 Set and confirm a goal for the phased implementation
There are several ways of defining an EnMS implementation goal. This subclause describes two
useful approaches. They should be coordinated with top management so that the results and strategic
direction resulting from the development of a business case (see 4.2.4) can be taken into account.
Each level corresponds to an increasing progression for each criteria of a topic under an element. The
first step is to define the desired level for each topic. Before setting a goal, it is necessary to ensure that
resources such as money, time and personnel are available to complete the desired element level and
whether it will be advantageous to the organization. This process is presented in Figure 3.
Key
√ achieved level
X set goal
Figure 3 — Set first goals
The organization has the choice between two approaches to define and schedule the specific goals
depending on the desired outcome. The first one is an individual way where the goal for each topic is
set at an individual level. The second approach is to choose a given level as a goal for all topics. Figure 4
shows an example of how a simple overview can look.
Figure 4 — Different approaches to define goals
4 © ISO 2021 – All rights reserved

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SIST EN ISO 50005:2022
ISO 50005:2021(E)

The individual approach can suffer from the problem of interdependence between the processes
described in the topics. The organization should ensure that it takes into account these
interdependencies.
Given the individual approach in the example in Figure 4, Level 2 in Topic 1 and Level 3 for Topic 2 is
expected to be reached in October 2022 while others are scheduled for May 2022. This also illustrates
that different levels can be reached at the same time. If a level-based procedure is chosen, all topics reach
the same level at the same time, e.g. in October 2022. Ultimately, the agreed goal should be adopted and
approved by the top management. This ensures a certain security and support in the implementation of
the necessary measures.
4.2.4 Set up a simple business case
Effective implementation of an EnMS can provide net benefits to most organizations. This means that
a business case can be developed for the implementation of an EnMS. Although it is not easy to set up a
very detailed business case directly at the beginning of the implementation process, it is crucial to get a
first overview of potential benefits as a basis for further decisions or setting goals. Thus, a preliminary
estimate of the costs and benefits and the connected investments should be developed.
4.2.5 Set up a project plan
The organization should develop a project plan with the number of elements and levels that will allow
the desired goals to be achieved. The project plan should include tasks, responsibilities, resources, a
timeline (e.g. GANTT chart), milestones, the aim and management reviews. The project plan should be
approved by top management.
...

SLOVENSKI STANDARD
oSIST prEN ISO 50005:2022
01-februar-2022
Sistem upravljanja z energijo - Smernice za fazno uvajanje (ISO 50005:2021)
Energy management systems - Guidelines for a phased implementation (ISO
50005:2021)
Energiemanagementsysteme - Leitfaden für eine phasenweise Umsetzung (ISO
50005:2021)
Systèmes de management de l'énergie - Lignes directrices pour une mise en œuvre par
étapes (ISO 50005:2021)
Ta slovenski standard je istoveten z: prEN ISO 50005
ICS:
03.100.70 Sistemi vodenja Management systems
27.015 Energijska učinkovitost. Energy efficiency. Energy
Ohranjanje energije na conservation in general
splošno
oSIST prEN ISO 50005:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 50005:2022

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oSIST prEN ISO 50005:2022
INTERNATIONAL ISO
STANDARD 50005
First edition
2021-09
Energy management systems —
Guidelines for a phased
implementation
Systèmes de management de l'énergie — Lignes directrices pour une
mise en œuvre par étapes
Reference number
ISO 50005:2021(E)
©
ISO 2021

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oSIST prEN ISO 50005:2022
ISO 50005:2021(E)

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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 The maturity model approach to implementing an EnMS . 1
4.1 Explanation and structure of the maturity model . 1
4.2 Phased implementation of an EnMS using the maturity model . 3
4.2.1 General. 3
4.2.2 Assess the organization’s initial situation . 3
4.2.3 Set and confirm a goal for the phased implementation . 4
4.2.4 Set up a simple business case . 5
4.2.5 Set up a project plan . 5
4.2.6 Monitor the implementation of the project plan . 5
4.2.7 Gap analysis versus ISO 50001:2018 . 5
5 Description of elements and levels . 5
5.1 Element 1 — Context of the organization. 5
5.2 Element 2 — Leadership . 7
5.3 Element 3 — Resources . 8
5.4 Element 4 — Energy review . 9
5.5 Element 5 — Energy performance indicators and energy baselines .11
5.6 Element 6 — Objectives, energy targets and action plans .13
5.7 Element 7 — Competence and awareness .14
5.8 Element 8 — Operations and maintenance .15
5.9 Element 9 — Procurement and design .16
5.10 Element 10 – Process for communication and control of documented information .17
5.11 Element 11 — Monitoring, measurement, analysis and evaluation of energy
performance .18
5.12 Element 12 — Management review and improvement .19
Annex A (informative) Continual improvement and advancing of the EnMS .22
Annex B (informative) Level version of the maturity model .25
Bibliography .37
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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
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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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 301, Energy management and energy
savings.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
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Introduction
0.1 General
It is important to engage all types of organizations and, in particular, small and medium-sized
organizations (SMOs) into the broad scale implementation of energy management because of the
significant potential such organizations have for energy performance improvement, associated energy
cost savings and reductions in greenhouse gas (GHG) emissions.
This document is intended to enable organizations to initiate and improve energy management
practices by following a systematic approach with appropriate effort given their resources and context,
resulting in continual energy performance improvement.
This document provides practical guidance to undertake a phased implementation of an energy
management system (EnMS), e.g. by using in-house capacity. The functioning EnMS can subsequently
be extended to meet the requirements of ISO 50001. A well-planned phased implementation of an EnMS
can reduce costs and the use of other resources while providing near-term success on which to build.
This can help in overcoming barriers for implementation in organizations with limited resources, such
as SMOs.
This document explains a phased implementation approach using twelve core elements based on
ISO 50001:2018. It outlines the content of the elements and describes four different levels of maturity
for each element. Annex A includes best practices for continual improvement of an EnMS by using a
phased approach. An organization can select appropriate tools to find an effective and efficient approach
to achieve the desired maturity of its EnMS. The element(s) and the corresponding maturity level(s)
targeted depend on the organization’s objectives and strategic direction. The EnMS can be integrated
with other management systems to benefit from common structures.
In this document, both terms “energy performance improvement” (as defined in ISO 50001:2018) and
“energy savings” are used. Energy savings is considered as a subset of energy performance improvement
in this document.
0.2 Advantages of a phased implementation
Implementing an EnMS in an organization can be a challenge. Organizations can have limited resources
(e.g. knowledge and availability of personnel) in order to successfully implement an EnMS. A phased
implementation results in several benefits to the organization. The phased implementation described
in this document offers flexibility that allows an organization to:
— decide the scope and pace of its EnMS implementation to suit available resources and organizational
needs;
— decide on the elements to target and the desired maturity level(s);
— start with areas that indicate the greatest potential for energy performance improvement, return
on investment or align with current operational practices;
— stimulate a positive culture towards energy management;
— deliver simple and/or low-cost energy performance improvements and associated energy cost
savings, emission reductions and other benefits;
— build initial successes to increase credibility and thus secure commitment and support for further
development of the EnMS;
— build a strong foundation to expand an existing EnMS towards meeting the requirements of
ISO 50001.
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INTERNATIONAL STANDARD ISO 50005:2021(E)
Energy management systems — Guidelines for a phased
implementation
1 Scope
This document gives guidance for organizations on establishing a phased approach to implement an
energy management system (EnMS). This phased approach is intended to support and simplify the
implementation of an EnMS for all types of organizations, in particular for small and medium-sized
organizations (SMOs).
This document gives guidance on the use of twelve core elements with four levels of maturity for each
element to establish, implement, maintain and improve an EnMS that results in energy performance
improvement.
It enables the user of this document to implement a phased approach to achieve a level of energy
management appropriate to its objectives and to build a strong foundation which can subsequently
be extended towards meeting the requirements of ISO 50001:2018. This document is consistent with
ISO 50001:2018 but does not cover all of its requirements.
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) applies.
ISO 50001:2018, Energy management systems — Requirements with guidance for use
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 50001:2018 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 The maturity model approach to implementing an EnMS
4.1 Explanation and structure of the maturity model
Using a maturity model helps an organization to assess the effectiveness of its current business
processes in order to follow a systematic and organized approach in achieving improved performance.
The maturity model that forms the basis of this document consists of twelve core elements of energy
management with four levels of maturity for each element.
The elements in this document either refer to a clause of ISO 50001:2018 or an important subclause
such as energy review.
The maturity model provides a simplified, systematic framework to implement and improve an EnMS
suitable to the organization’s needs and capabilities by using a phased approach. It describes criteria
including detailed behaviours, practices and processes. The organization initially uses the maturity
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model to understand its current state and to establish initial improvement goals. Then the organization
can implement EnMS improvements in phases.
As the organization progresses from its individual starting point towards the desired level of EnMS
maturity, it should improve energy performance. This improved energy performance is understood as
an improvement in energy efficiency or energy consumption related to energy use which can result in
reduced energy costs. The twelve elements of the maturity model are described in Clause 5. For each
level in an element, the given criteria describe(s) “what” needs to be in place at that level. Where not
stated otherwise, the criteria are addressed to the organization. This model does not provide specific
approaches on “how” the level can be achieved. The elements are divided into topics for clarity and to
make it easier for the user to implement the criteria for the elements.
Based on the analysis of the current state of energy management practices, the organization can choose
an appropriate speed of implementation and the desired level of maturity for each element. Whatever be
the starting point, the organization needs to work on each element. It is possible that the organization
needs additional resources (e.g. time, personnel, knowledge, budget).
Predictability, effectiveness and control of the EnMS should improve as the organization moves up to
higher levels in each element. The maturity model provides a continuum along which progress can be
made incrementally from one level to the next. The four levels represent a progression from a low level
of energy management experience to a level approaching ISO 50001 conformity. The four levels can
generally be described as follows.
a) Level 1: Enabling energy management: initial management support, some awareness and
understanding of energy use and opportunities for energy savings, collection of some energy data
(e.g. energy bills), no systematic energy management practices.
b) Level 2: Enhancing energy management: energy policy in place, formal team, conduct basic analysis
of energy consumption and energy cost data, evaluate opportunities for energy savings, some
systematic energy management practices.
c) Level 3: Emerging EnMS: systematic energy management practices, energy management becomes
strategic, monitoring and review improved, legal compliance is part of the EnMS, the organization
learns.
d) Level 4: Established EnMS: continual improvement of the EnMS and energy performance, core
elements of ISO 50001 implemented, ready for gap analysis versus ISO 50001, if desired.
NOTE Reaching Level 4 for all twelve elements does not necessarily lead to meeting all the requirements of
ISO 50001:2018.
When using the maturity model, the organization should consider that for each topic under an element
the criteria for a certain level can include the criteria of the previous levels in a cumulative manner.
Although the levels build on each other, they do not necessarily have to be implemented in four
sequential steps. If, for example, the organization has planned to reach Level 3 of a certain element,
it does not have to first implement Level 1, Level 2 and then Level 3. It can implement Level 3 directly,
taking into account the criteria of Levels 1 and 2.
Where there are blanks in the element tables, no criteria (e.g. see Figure 1 Level 1) or no additional
criteria (e.g. see Figure 1 Level 3) are required at that level. This means to maintain the criteria
implemented at the previous level.
For organizations that want to enhance their EnMS, additional advice and best practices are given in
Annex A. A level version of the maturity model is given in Annex B. The twelve elements of the maturity
model are described in Tables 1 to 12 in Clause 5.
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Figure 1 — Interpretation of “blanks” in the element tables
4.2 Phased implementation of an EnMS using the maturity model
4.2.1 General
The phased implementation is a project guideline consisting of elements and levels that target the
desired state of an EnMS. The starting point depends on the previous experience and situation of the
organization. It is also possible to focus only on some of the elements or topics individually. Nevertheless,
if all elements, topics and criteria for each level are implemented, then conformity to ISO 50001 can be
achieved with some additions and adjustments (see 4.2.7). An example of a practical procedure for the
phased implementation is given in 4.2.2 to 4.2.7.
4.2.2 Assess the organization’s initial situation
If the organization has no experience with a management system or specifically an EnMS, it is difficult
to estimate the work that lies ahead. The practical guidance to a phased implementation approach
provided in this document is based on the fact that every organization has some kind of energy
management in place. However, perhaps it is not well structured or does not cover all elements of good
practice of energy management.
It is often the case that some elements of an EnMS, such as energy performance improvement actions,
are in place at some level, but are not yet systematically implemented in the context of a management
system. The described elements and levels can be used as a self-assessment tool. A simple table can be
created for this purpose that gives an overview of which elements and topics are already addressed in
the organization and, if they do exist, at what level they are functioning with respect to the planned
EnMS (see Figure 2). The organization can assess what has already been implemented and what steps
still need to be taken.
Figure 2 — Initial process
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Self-assessment is a good starting point to show to top management where the organization stands
with regard to an EnMS. Self-assessment should be used to determine the organization’s status, as well
as best practices both at an overall level and at the level of each element.
A level of a certain topic of an element is considered to be achieved when all listed criteria at that level
for the topic have been fulfilled. Achievement of a particular level of a certain topic of the element
requires that all lower-level criteria have been fulfilled.
The next step to pursue is determined by the goal of the organization for the phased implementation.
4.2.3 Set and confirm a goal for the phased implementation
There are several ways of defining an EnMS implementation goal. This subclause describes two
useful approaches. They should be coordinated with top management so that the results and strategic
direction resulting from the development of a business case (see 4.2.4) can be taken into account.
Each level corresponds to an increasing progression for each criteria of a topic under an element. The
first step is to define the desired level for each topic. Before setting a goal, it is necessary to ensure that
resources such as money, time and personnel are available to complete the desired element level and
whether it will be advantageous to the organization. This process is presented in Figure 3.
Key
√ achieved level
X set goal
Figure 3 — Set first goals
The organization has the choice between two approaches to define and schedule the specific goals
depending on the desired outcome. The first one is an individual way where the goal for each topic is
set at an individual level. The second approach is to choose a given level as a goal for all topics. Figure 4
shows an example of how a simple overview can look.
Figure 4 — Different approaches to define goals
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The individual approach can suffer from the problem of interdependence between the processes
described in the topics. The organization should ensure that it takes into account these
interdependencies.
Given the individual approach in the example in Figure 4, Level 2 in Topic 1 and Level 3 for Topic 2 is
expected to be reached in October 2022 while others are scheduled for May 2022. This also illustrates
that different levels can be reached at the same time. If a level-based procedure is chosen, all topics reach
the same level at the same time, e.g. in October 2022. Ultimately, the agreed goal should be adopted and
approved by the top management. This ensures a certain security and support in the implementation of
the necessary measures.
4.2.4 Set up a simple business case
Effective implementation of an EnMS can provide net benefits to most organizations. This means that
a business case can be developed for the implementation of an EnMS. Although it is not easy to set up a
very detailed business case directly at the beginning of the implementation process, it is crucial to get a
first overview of potential benefits as a basis for further decisions or setting goals. Thus, a preliminary
estimate of the costs and benefits and the connected investments should be developed.
4.2.5 Set up a project plan
The organization should develop a project plan with the number of elements and levels that will allow
the desired goals to be achieved. The project plan should include tasks, responsibilities, resources, a
timeline (e.g. GANTT chart), milestones, the aim and management reviews. The project plan should be
approved by top management.
4.2.6 Monitor the implementation of the project plan
The following steps should be taken:
— regularly review ongoing project management activities;
— complete the implementation towards the goal;
— review the process;
— reassess the maturity model framework (e.g. bi-annually);
— improve and, if appropriate, set a new goal.
4.2.7 Gap analysis versus ISO 50001:2018
Achieving Level 4 in the maturity model for all elements does not mean that the organization’s EnMS
meets all the requirements of ISO 50001:2018. In the maturity model, core elements of ISO 50001:2018
have been selected. However, there can be other requirements to be met in order to achieve conformity
to ISO 50001:2018 in addition to these. If the organization wishes to demonstrate conformity to
ISO 50001:2018, a gap analysis will generally be needed.
5 Description of elements and levels
5.1 Element 1 — Context of the organization
To be aware of its own context, the organization needs to determine:
— external and internal issues such as resources, personnel capacities and energy types;
— needs and expectations of its interested parties such as legal requirements and agreements with
suppliers.
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External and internal issues as well as the needs and expectations and associated risks and
opportunities that are relevant to the EnMS should be considered by the organization. Building on that
analysis, the organization can take action to address identified opportunities (e.g. external funding of
energy performance improvement actions such as incentives and subsidies) and risks (e.g. insufficient
resources to implement the EnMS) in order to achieve the best possible outcome from its EnMS.
The organization should determine how legal requirements and other requirements apply to its
EnMS. Common business practices in the industry sector in which the organization functions can also
affect the design and implementation of the EnMS. The criteria related to the element “context of the
organization” are shown in Table 1.
The content of this element relates to ISO 50001:2018, 4.1, 4.2 and 6.1.
Table 1 — Context of the organization
Criteria
Topics
Level 1 Level 2 Level 3 Level 4
Context Create some aware- Collect information Determine ener- Top management
ness within the about energy-related gy-related external ensures that the
organization about environmental and and internal issues energy-related needs
energy-related envi- other impacts within that affect the or- and expectations of
ronmental and other the organization. ganization's ability the relevant inter-
impacts. to improve energy ested parties are
performance. determined.
Risks and — — Identify the risks Top management
opportunities and opportunities ensures that risks
associated with and opportunities
external and internal associated with the
issues that affect the energy-related needs
organization’s ability and expectations of
to improve energy interested parties
performance. are determined in
order to ensure that
the EnMS achieves
its intended
outcomes.
Top management
ensures that meas-
ures to address the
determined risks
and opportunities
are established.
The organization de-
termines changes in
external and internal
issues and associated
risks and opportuni-
ties that are relevant
to the EnMS and
energy performance
improvement.
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Table 1 (continued)
Criteria
Topics
Level 1 Level 2 Level 3 Level 4
Legal requirements Create an awareness — Determine how legal Establish a system to
and other about the applicable requirements and apply legal require-
requirements legal requirements other requirements ments and other re-
and other require- apply to the organi- quirements through-
ments related to zation’s EnMS. out the processes of
energy. the EnMS.
Review at defined
intervals the or-
ganization’s legal
requirements and
other requirements.
5.2 Element 2 — Leadership
It is essential
...

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