1、BS ISO 17743:2016Energy savings Definition ofa methodological frameworkapplicable to calculation andreporting on energy savingsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 17743:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implement
2、ation of ISO 17743:2016.The UK participation in its preparation was entrusted to TechnicalCommittee SEM/1/2, Energy Efficiency Saving Calculations andBenchmarking.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inc
3、lude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 81822 6ICS 27.010Compliance with a British Standard cannot confer immunity fromlegal obligations.This British
4、 Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments issued since publicationDate Text affectedBS ISO 17743:2016 ISO 2016Energy savings Definition of a methodological framework applicable to calculation and reporting on energy savings
5、conomies dnergie Dfinition dun cadre mthodologique pour le calcul et la dclaration des conomies dnergiesINTERNATIONAL STANDARDISO17743First edition2016-06-01Reference numberISO 17743:2016(E)BS ISO 17743:2016ISO 17743:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Publis
6、hed in SwitzerlandAll 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. Permissio
7、n can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 17743:2016ISO 17743:2016(E)Foreword
8、 ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Energy savings and methods for determination . 34.1 General . 34.2 Principles . 44.3 Energy savings. 44.4 System boundary(s) . 54.5 Energy baseline determination 54.6 Unadjusted energy savings and adjusted energy saving
9、s 74.6.1 General 74.6.2 Use of adjustment(s) 94.6.3 Types of adjustments 105 Reporting energy savings .115.1 General information on reporting energy savings 115.2 Communication of energy saving results 12Annex A (informative) Energy savings for different levels of analyses 13Annex B (informative) Ex
10、ample of adjustment used in different energy saving calculation methods .15Bibliography .16 ISO 2016 All rights reserved iiiContents PageBS ISO 17743:2016ISO 17743:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO memb
11、er 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, government
12、al 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 a
13、re 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
14、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
15、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 assess
16、ment, as well as information about ISOs 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/TC 257, Evaluation of energy savings.iv ISO 2016 All rights reservedBS ISO 1
17、7743:2016ISO 17743:2016(E)IntroductionThis International Standard aims to provide standards used to determine the energy savings covering regions, cities, organizations and projects.This International Standard provides a framework with definitions, types of information used to evaluate the energy sa
18、vings in order to enable consistency for the standards developed by ISO/TC 257.Figure 1 illustrates the relationship between the different working groups of ISO/TC 257, as well as ISO 50015, developed by ISO/TC 242 which is about energy management.Figure 1 Work programme of ISO TC 257This Internatio
19、nal Standard may be used by any stakeholder (policy maker, decision maker, company, organization, NGOs, etc.) that aims to determine energy savings. ISO 2016 All rights reserved vBS ISO 17743:2016BS ISO 17743:2016Energy savings Definition of a methodological framework applicable to calculation and r
20、eporting on energy savings1 ScopeThis International Standard establishes a methodological framework that applies to the calculation and reporting of energy savings from existing (implemented) and prospective measures and actions which intend to save energy. This framework standard will be applicable
21、 to other standards in the field of energy saving determination.This International Standard addresses the following in the context of energy savings: terminology; definition of the system boundaries; principles for the determination of a baseline; principles for statistical indicator-based methods;
22、data used; principles for reporting.The development of the methodology for measurement and verification of the energy savings is not in the scope of this International Standard.The methodology of construction of the scenarios for future energy saving measures and actions is not in the scope of this
23、International Standard.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1baseline periodspecific period of time before the implementation of energy performance improvement ac
24、tion (3.7) selected for the comparison with the reporting period (3.11) and the calculation of energy savings (3.9)SOURCE: ISO/IEC 13273-1:2015, 3.3.8.1, modified “energy performance” replaced by “energy savings” and deleted “and of energy performance improvement action”3.2energycapacity of a system
25、 to produce external activity or to perform workNote 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.INTERNATIONAL STANDARD ISO 17743:2016(E) ISO 2016 All rights r
26、eserved 1BS ISO 17743:2016ISO 17743:2016(E)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.Note 4 to entry: In the Internatio
27、nal Systems of Units, the reference unit for energy is Joule (J).SOURCE: ISO 13273-1:2015, 3.1.1, modified added Note 4 to entry3.3energy baselinequantitative reference(s) providing a basis for comparison of energy performance (3.6)Note 1 to entry: An energy baseline usually reflects a specified per
28、iod of time.Note 2 to entry: An energy baseline can be adjusted using variables which affect energy use and/or consumption, e.g. production level, degree days (outdoor temperature), occupancy period, etc.Note 3 to entry: The energy baseline is also used for calculation of energy savings, as a refere
29、nce before and after implementation of energy performance improvement actions.SOURCE: ISO 50001:2011, 3.63.4energy consumptionquantity of energy (3.2) appliedNote 1 to entry: Energy consumption can be determined with and without or before and after any energy performance improvement action.SOURCE: I
30、SO 50001:2011, 3.7, modified added Note 1 to entry3.5energy end-userindividual or a group of individuals or organization with responsibility for operating an energy using systemNote 1 to entry: The energy end-user may differ from the customer who might purchase the energy but does not necessarily us
31、e it.SOURCE: ISO 13273-1:2015, 3.1.10, modified added Note 1 to entry3.6energy performancemeasurable results related to energy efficiency, energy use, and energy consumption (3.4)SOURCE: ISO 13273-1:2015, 3.3.13.7energy performance improvement actionEPIAaction or measure (or group of actions or meas
32、ures) implemented or planned within an organization intended to achieve energy performance improvement through technological, management, behavioural, economic or other changesNote 1 to entry: EPIAs are also applicable at project level or country, regions and city level.Note 2 to entry: In the conte
33、xt of energy savings calculation, EPIAs are generally concerned with energy efficiency.Note 3 to entry: In some International Standards, “elementary unit of action” is used instead of EPIA.SOURCE: ISO 13273-1:2015, 3.3.7, modified added Note 1 to entry, Note 2 to entry and Note 3 to entry2 ISO 2016
34、All rights reservedBS ISO 17743:2016ISO 17743:2016(E)3.8energy savingsreduction of energy consumption (3.4) compared to an energy baselineNote 1 to entry: Energy savings can be actual (realized) or expected (predicted).Note 2 to entry: Energy savings may be the result of implementation of an EPIA (e
35、nergy performance improvement action) or autonomous progress.3.9energy using systemphysical items with defined system boundaries, using energy (3.2)EXAMPLE Facility, building, part of a building, machine, equipment, product, etc.SOURCE: ISO 13273-1:2015, 3.1.93.10adjusted energy savingsenergy saving
36、s with use of adjustment(s)Note 1 to entry: The difference in energy consumption with and without or before and after the energy performance improvement action(s) with the use of adjustment(s).3.11reporting perioddefined period of time selected for determination and reporting of energy savingsSOURCE
37、: ISO 50006:2014, 3.15, modified, “calculation” replaced by “determination” and “energy performance” replaced by “energy savings”3.12routine adjustmentdeterminable adjustment made to energy consumption to account for changes in relevant variables according to a predetermined methodNote 1 to entry: I
38、n some International Standards, the term “normalization” is used in preference to “routine adjustement”, in order to enable different methods of adjustment (commonly based on reference conditions, baseline period conditions or reporting period conditions) to be distinguished.SOURCE: ISO 50015:2014,
39、3.20, modified “determinable” and Note 1 to entry added and “energy baseline” replaced by “energy consumption”3.13unadjusted energy savingsenergy savings (3.8) without any adjustment4 Energy savings and methods for determination4.1 GeneralThe choice for the method for calculating and reporting energ
40、y savings should be suitable for the intended use of the results. There are three main methods: statistical indicator-based method28; measure-based method, including EPIA based methods138; total consumption-based method3. ISO 2016 All rights reserved 3BS ISO 17743:2016ISO 17743:2016(E)The statistica
41、l indicator-based method starts from indicators that relate energy consumption to a relevant variable (driver). The change in this efficiency indicator is used to calculate savings, by multiplying it with the value of the relevant variable (driver).The measure-based method, including EPIA-based meth
42、ods, aggregates energy savings calculated for each EPIA or other measure implemented.Total consumption-based method starts from the change in measured energy consumption between the baseline period and the reporting period.4.2 PrinciplesThis framework standard introduces the key concepts for calcula
43、ting energy savings. Energy savings will be determined as a difference in energy consumption with and without or before and after the energy performance improvement action(s).Energy savings are dependent on the system boundary being considered.If an energy performance improvement action results in a
44、n increase in the energy consumption, then the energy savings are negative.This Clause describes the different characteristics of methods as to the following: energy savings (4.3); system boundary(s) (4.4); energy baseline and adjustment of energy savings (4.5 to 4.6).4.3 Energy savingsEnergy saving
45、s may result from the following: facilitating measures intended to encourage an end-user action; EPIAs independently taken by energy end-users; autonomous progress, other market changes or policies that arise without end-user actions intended to save energy (these are described in more detail in 4.6
46、.3.3).Facilitating measures, such as regulation, subsidy schemes or voluntary agreements, may encourage energy end-users to implement energy performance improvement actions. Facilitating measures do not by themselves result directly in energy savings.EXAMPLES Minimum energy efficiency performance st
47、andards for refrigerators, power transformers and appliance in general, tax reduction for efficient car, subsidized loans for higher efficiency industrial electric motors and voluntary agreements with manufacturers to reduce standby energy consumption of televisions.Energy end-users may take actions
48、 that lead to energy savings. These actions are known as energy performance improvement actions (EPIAs). The EPIAs may be physical, organizational, or behavioural.EXAMPLES A physical action may be to replace old refrigerators or power transformers by more efficient ones; an organizational action may
49、 be to identify oversized and underloaded electric motors and redistribute the load; a behavioural action may be to apply eco-driving principles.Statistical indicator-based methods relate energy consumption at an aggregated level (sector, targeted energy use, such as all refrigerators or all electric motors in a country) to one relevant variable (driver) that is (statistically) defining the change in energy consumption. The change in the indicator value is used to calculate the savi
