ISO/IEC INTERNATIONAL 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 IS0/IEC 13273-1:2015(E) E( . International Organization for Standardization @ IS0/IEC 2015 Not for Resale, 2015/8/7 05:25:10 ted without license from IHS IS0/IEC 13273-1:2015(E) COPYRIGHT PROTECTED DOCUMENT @IS0/IEC2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Inteationai br DrganizationforStandardization Not for Resale, 2015/8/7 05:25:10 No reproduction or networking permited without license from IHS IS0/IEC 13273-1:2015(E) Contents Page Foreword .iv Introduction. .V 1 Scope. 2 Normative references 3 Terms and definitions 3.1 Terms related to energy. 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 Annex B (informative) Useful energy/Energy loss/ Recovered energy/Wasted energy ..13 Bibliography ..14 iii without license from IHS