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Embodied carbon in building services: A methodology for ANZ
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Embodied carbon in building services: A methodology for ANZ

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Embodied carbon in building services: A calculation methodology for Australia and New Zealand provides detail of alternative assumptions to be made when using the CIBSE embodied carbon methodology to calculate the embodied carbon impact of building services equipment installed in Australia and New Zealand. This is not a standalone document, and cannot be applied without first understanding Embodied carbon in building services: A calculation methodology (TM65).

The creation of this document followed steps laid out in the companion publication Embodied carbon in building services: Using the TM65 methodology outside the UK (TM65LA).


The CIBSE embodied carbon methodology now includes several publications, digital tools, and free-to-all data-gathering forms. All of these can be accessed from www.cibse.org/tm65.

1 Introduction     

1.1 Context    

1.2 The TM65 methodology in Australia and New Zealand 

1.2.1 How to use the TM65 methodology in Australiaand New Zealand

1.2.2 How TM65 relates to Green Star

2 Local assumptions relevant to Australia and New Zealand

2.1 Collecting and reporting data 

2.1.1 ‘Basic’ calculation assumptions

2.1.2 ‘Mid-level’ calculation assumptions 

2.2 Moving forward: Actions engineers can take

2.3 Considerations beyond carbon

Appendix A:  Summary of Embodied carbon in building services: A calculation methodology (TM65)

Appendix B:  Worked example – Basic calculation method

Appendix C:  Worked example – Mid-level calculation method

Appendix D:  Sensitivity analysis

Appendix E:   Creation of the local addendum for Australia and New Zealand

Appendix F:   The CIBSE building services taxonomy

Appendix G:  Key carbon definitions

Authors: Clara Bagenal George and Louise Hamot (Integral Group); Ian van Eerden (CIBSE Australia); Taryn Cornell (Green Building Council Australia)

Contributors: Andrew Nagarajah (Agcombs); David Baggs (Global Greentag); Fairouz Ghanem (Northtrop); Jorge Chapa (Green Building Council Australia); Dr Joe Jack Williams (Feilden Clegg Bradley Studios); Dr Julie Godefroy (Julie Godefroy Sustainability); Grace Foo (DeltaQ Pty Ltd/AIRAH); Leonardo Poli (Elementa Consulting/Integral Group); Matthew Sykes (Elementa Consulting/Integral Group); Prateek Alkesh (Aecom); Rob Rouwette (Energetics); Robert Crawford (Melbourne University); Simon Bradwell (Au. Ebmpapst manufacturing); Simon Wyatt (Cundall).

Peer reviewers: Luke Leung (SOM); Matt Jungclaus (University of Colorado Boulder); Nicole Sullivan (Thinkstep ANZ); Philip Johnson (Daikin Applied).