ISO/TR TECHNICAL REPORT 52120-2 First edition 2021-12 Energy performance of buildings - Contribution of building automation, controls and building management Part 2: Explanation and justification of IsO 52120-1 Performance énergétique des batiments - Impact de I'automatisation, de la regulation et de la gestion technique des batiments- Partie 2: Explication et justification de I'lS0 52120-1 Reference number IS0/TR 52120-2:2021(E) ISO @IS02021 IS0/TR 52120-2:2021(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may the internet or an intranet, withoutpriorwrittenpermission.Permission can be requested from eitherIso at the addressbelow or Iso's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org PublishedinSwitzerland i @ IS0 2021 - All rights reserved