Sustainable ICT in corporate organizations

Sustainable ICT in corporate organizations

itu.int/ITU-T/climatechange/ess

Acknowledgements

This document is part of the ITU Toolkit on Environmental Sustainability for the ICT sector which was edited by Jyoti Banerjee (Fronesys) and Cristina Bueti (ITU).

This document was researched and written by Jyoti Banerjee and Chris Tuppen (Fronesys), Flavio

Cucchietti (Telecom Italia), Ahmed Zeddam (France Telecom/Orange), Shailendra Mudgal (BIOIS), John Pflueger (Dell), Ray Pinto (Microsoft), Peter Thomond (Imperial College), Lutz-Guenther Scheidt and Constantin Herrmann (PE International AG), Harkeeret Singh and Julia Fuller (Thomson Reuters), Daniela Torres (Telef?nica), Jean-Manuel Canet (France Telecom), Elena Barthe Garcia de Castro, Elvira Moya and Amjad Rihan (Ernst & Young), S?bastien Ziegler (Mandat International), Maria Morse (HP) and William Kosik (HP), Dave Faulkner and Keith Dickerson (Climate Associates), Peter Thomond (Imperial College), Giacomo Mazzone and David Wood (EBU), Richard Smith, Jigna Chandaria, Simon Tuff and Mariam Ali (BBC), Mamle Asare (Vodafone), Barbara Martini (Scuola Superiore Sant'Anna - Pisa) and Tom Baumann (GHG Management Institute/ClimateCHECK).

Special thanks are due to the contributory organizations of the Toolkit on Environmental Sustainability for the ICT Sector for their helpful review of a prior draft.

Additional information including the full list of contributory organizations can be found at: itu.int/ITUT/climatechange/ess/index.html

If you would like to provide any additional information, please contact Cristina Bueti at tsbsg5@itu.int.

Legal Notice

This publication may be updated from time to time.

Third-party sources are quoted as appropriate. The International Telecommunication Union (ITU) and the contributory organizations are not responsible for the content of external sources including external websites referenced in this publication.

Disclaimer

The views expressed in this publication are those of the authors and do not necessarily reflect the views of the International Telecommunication Union (ITU), its membership or contributory organizations. Mention of and references to specific countries, companies, products, initiatives or guidelines do not in any way imply that they are endorsed or recommended by ITU, the authors, or any other organization that the authors are affiliated with, in preference to others of a similar nature that are not mentioned.

Requests to reproduce extracts of this publication may be submitted to: jur@itu.int

? ITU 2012

All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU.

Sustainable ICT in corporate organizations

Table of contents

Page Executive summary ...................................................................................................................................1 Data centers..............................................................................................................................................1 Desktop infrastructure ..............................................................................................................................1 Telecoms infrastructure and networks.......................................................................................................2 Broadcasting services ................................................................................................................................2 The toolkit ................................................................................................................................................2 1 Introduction ......................................................................................................................................4

1.1 Objective and target audience ...........................................................................................................4 1.2 A note on digital convergence ............................................................................................................5 2 Data centers ......................................................................................................................................5 2.1 The main components of a data center..............................................................................................6 2.2 Drivers impacting energy efficiency of a data center .........................................................................6 2.3 PUE is the key sustainability metric ....................................................................................................7 2.4 Managing other sustainability metrics ...............................................................................................9 2.5 Guidelines on sustainability in data centers .................................................................................... 11 2.6 Best practices in data centers.......................................................................................................... 12 2.7 KPIs for data centers ........................................................................................................................ 16 3 Desktop infrastructure ..................................................................................................................... 17 3.1 The elements of desktop infrastructure .......................................................................................... 17 3.2 Sustainability drivers in desktop infrastructure............................................................................... 17 3.3 Regulations and guidelines.............................................................................................................. 20 3.4 Best practices on desktop infrastructure......................................................................................... 20 3.5 Evaluation of the shift from one technology to another ................................................................. 24 3.6 Key performance indicators............................................................................................................. 26 4 Telecoms infrastructure and networks .............................................................................................26 4.1 The building blocks of a network..................................................................................................... 26 4.2 Sustainability impacts of a network................................................................................................. 28 4.3 Guidelines ........................................................................................................................................ 29 4.4 Best practice energy efficiency in networks .................................................................................... 30 4.5 Evaluating the shift from one technology to another ..................................................................... 33 4.6 Key performance indicators............................................................................................................. 34

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