National Greenhouse Accounts Factors—July 2012

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Department of Climate Change and Energy Efficiency
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Greenhouse and energy reporting
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Note: Corrections to the recalculation summary at Table 45 issued 29/8/2012.

The National Greenhouse Accounts (NGA) Factors has been prepared by the Department of Climate Change and Energy Efficiency and is designed for use by companies and individuals to estimate greenhouse gas emissions. The NGA Factors is not published for the purposes of reporting under the National Greenhouse and Energy Reporting Act 2007 (the NGER Act). While drawing on the National Greenhouse and Energy Reporting (Measurement) Determination 2008, the methods described in the NGA Factors have a general application to the estimation of a broader range of greenhouse emissions inventories.

Unless otherwise stated, the methods for calculating emissions listed in this document are "Method 1" from the National Greenhouse and Energy Reporting (Measurement) Determination 2008 incorporating the National Greenhouse and Energy Reporting (Measurement) Amendment Determination 2012 (No. 1) and the National Greenhouse and Energy Reporting (Measurement) Technical Guidelines July 2012. The Technical Guidelines are available and have been designed to support reporting under the NGER Act 2007.

The default emission factors listed have been estimated by the Department of Climate Change and Energy Efficiency using the Australian Greenhouse Emissions Information System (AGEIS) and are determined simultaneously with the production of Australia's National Greenhouse Accounts. This ensures that consistency is maintained between inventories at company or facility level and the emission estimates presented in the National Greenhouse Accounts. The emission factors are referred to in this document as National Greenhouse Accounts default emission factors.

More information on the estimation methods employed in the National Greenhouse Accounts is available in the National Inventory Report 2010. The methods used at the national level, and reflected in the factors reported here, are consistent with international guidelines and are subject to international expert review each year.

The emission factors reported in this publication replace those listed in the NGA Factors, released in July 2011. Updated factors and methods in this document correspond to those detailed in the National Greenhouse and Energy Reporting (Measurement) Determination 2008 as amended by the National Greenhouse and Energy Reporting (Measurement) Amendment Determination 2012 (No. 1).