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About this publication

This is the third version of an annual publication. Each year the Ministry for the Environment updates this guide with emission factors for the previous calendar year. It does not replace previous editions of this publication. This guidance document has been produced for the 2006 and 2007 calendar years previously. This guidance document is updated annually to maintain consistency with international best practice and the New Zealand government’s national greenhouse gas inventory reporting.

The emission factors and methods contained within the guidance document are provided for emission sources deemed common for commercial organisations; however the guidance document is also applicable to industrial organisations who wish to report on the same emission sources.

Each year the Ministry for the Environment will update this guidance document with emission factors for the previous calendar year. It does not replace previous editions of this publication.

Changes to data and methodology for the 2008 calendar year

Scope 1

Stationary combustion – emission factors for stationary combustion have been updated based on new figures for the 2008 calendar year.

Transport fuels – emission factors for transport fuels have been updated based on new figures for the 2008 calendar year.

Refrigerants – detailed guidance has been removed. Please use the methodology contained in the 2008 guide, as it remains unchanged: http://www.mfe.govt.nz/publications/climate/guidance-greenhouse-gas-reporting-2008-09/guidance-voluntary-greenhouse-gas-reporting.pdf

Scope 2

Purchased electricity – emission factors for purchased gas and electricity have been updated based on new figures for the 2008 calendar year.

Scope 3

Transmission and distribution losses – emission factors for transmission and distribution losses from purchased electricity and natural gas have been updated based on new figures for the 2008 calendar year.

Taxis/rental cars – emission factors for travel in taxis/rental cars have been updated based on new figures for the 2008 calendar year.

Air travel – emission factors for air travel have been updated based on the latest data.

Waste – emission factors for waste to landfill with methane capture have been updated based on new projected methane capture data for the 2007 calendar year.

Note: that this guidance publication is solely intended for use in voluntary greenhouse gas reporting, and should not be used for mandatory reporting for participants under the New Zealand Emissions Trading Scheme.