ISO INTERNATIONAL STANDARD 23045 First edition 2008-12-15 Building environment design - Guidelines to assess energy efficiency of new buildings Conception de I'environnement des batiments-Lignes directrices pour I'évaluation de I'efficacite énergétique des batiments neufs Reference number ISO 23045:2008(E) @ ISO 2008 yIHS under Not for Resale ISO23045:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT @ ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's memberbody in the country of the requester. ISO copyright office Case postale 56. CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ ISo 2008 - All rights reserved without license from IHS Not for Resale ISO 23045:2008(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references .. 3 Terms and definitions 4 Fundamentals on energy efficiency... 4.1 General.. 4.2 Project information in relation to energy efficiency.. 4.3 Introducing the energy efficiency framework...... 4.4 Renewable energy integration.... 5 Expression of efficiency indicators .. 5.1 General..... 5.2 Indicators related to the performance of the building envelope .6 5.3 Indicators related to integrated energy performance of the building including systems.. 5.4 Secondary indicators .... 6 Design process, ..8 6.1 General.. .8 6.2 Stage I- Conceptual design ..8 6.3 Stage II- -Schematic design. .8 6.4 Stage III - Detail design .. 9 6.5 Stage IV Final design .... 10 Influential parameters 10 7.1 7.2 Building environment. .10 7.3 Building characteristics. 10 7.4 Building use .... 10 7.5 Calculationtools 10 8 Uses for energy performance indicators 8.1 General. 11 8.2 Standard assets 8.3 Other parameters... 11 Annex A (normative) Energy efficiency flowchart 12 Annex B (informative) Global basic energy scheme Annex C (informative) Thermal load due to persons..... Annex D (informative) Thermal load due to lighting... 15 Annex E (informative) Thermal load due to equipment.... Annex F (informative) Default net energy value for fuels... 17 Copyright International Organizaion for standardizllon'ghts reserved ili se from IHS Not for Resale