ISO INTERNATIONAL STANDARD 50015 First edition 2014-12-15 Energy management systems Measurement and verification of energy performance of organizations - General principles and guidance Systemes de management de I'énergie - Mesure et Verification de la performance énergétique des organismes Principes géneraux et recommandations Reference number IS0 50015:2014(E) ISO International Organization for Standardization =Zhejiang Institute of Standardization 5956617 @IS02014 ted without license from IHS IS0 50015:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 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 [email protected] Web www.iso.org Published in Switzerland Drganizationfor Standardization networking permited without license from IHS IS0 50015:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..1 4 Measurement and verification principles ..4 4.1 General principles 4 4.2 Appropriate accuracy and management of uncertainty ..4 4.3 Transparency and reproducibility of M&V process(es) .4 4.4 Data management and measurement planning ..5 4.5 Competence of the M&V practitioner .5 4.6 Impartiality 4.7 Confidentiality .5 4.8 Use of appropriate methods ..5 5 Measurement and verification plan ..5 5.1 General. 5.2 Scope and purpose. .6 5.3 Energy performance improvement actions .7 5.4 M&V boundaries .7 5.5 Preliminary M&V plan assessment ..8 5.6 Characterization and selection of energy performance metrics including EnPIs ..8 5.7 Characterization and selection of relevant variables and static factors 5.8 SelectionoftheM&Vmethodandcalculationmethod 9 5.9 Data...... gathering plan. ..10 5.10 Energy baseline establishment and adjustments ..11 5.11 Resources required ..12 5.12 Roles and responsibilities .12 5.13 Documentation of the M&V plan .12 6 Implementation of M&V plan ..12 6.1 Data..... gathering. ..12 6.2 Verification of the implementation of the EPIA(s) ..13 6.3 Observation anticipated or unforeseen changes ..13 6.4 M&Vanalysis .13 6.5 M&V reporting .14 6.6 Reviewtheneedtorepeattheprocess ..14 7 Uncertainty ..14 8 Measurement and verification documentation. ..15 Annex A (informative) Overview of the measurement and verification flow ..16 Annex B (informative) Measurement uncertainty examples ..17 Bibliography .18 ii icensee=Zhejiang Institute of Standardization 5956617 ed without license from IHS