Voluntary Reporting of Greenhouse Gases Program |
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The greenhouse gas emission factors and global warming potentials (GWPs) presented on this page should be used for preparing emission inventories and calculating emission reductions submitted to U.S. Energy Information Administration (EIA) on Form EIA-1605(b).
Emission Factors Fuel and Energy Emission Factors: Use these factors to estimate carbon dioxide emissions and emission reductions associated with fuel consumption by stationary and mobile sources. Domestic and Foreign Electricity Emission Factors: Use the regional electricity factors to estimate emission reductions associated with electricity generation and consumption as follows:
U.S. EPA’s AP-42 Emission Factors: The Technical Guidelines permit or require the use of other emission factors for certain emissions or reductions calculations. Use the links below to view U.S. EPA’s AP-42 Emission Factors.
The Intergovernmental Panel on Climate Change (IPCC) revised GWPs for certain greenhouse gases in 2007 for the Fourth Assessment Report (AR4). Reporters should use the AR4 GWPs to convert emission quantities to carbon dioxide equivalent (CO2e) where available. Reporters should use Third Assessment Report (TAR) GWPs for gases for which the IPCC did not estimate revised GWPs for the AR4.
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