Frequently Asked Questions

What are the greenhouse gas and air pollutant emissions factors for fuels and electricity?

The U.S. Energy Information Administration (EIA) publishes emission factors (or coefficients) for the amounts of certain gases that are released when fuels are burned, and publishes emission factors for when electricity is generated and used. EIA publishes factors for three major greenhouse gases: carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). EIA also publishes factors for the air pollutants sulfur dioxide (SO2) and nitrogen oxides (NOx).

Factors for the combustion of fossil fuels:

Factors for electricity generation:

Factors for electricity when consumed:

The U.S. Environmental Protection Agencycan be used as a resource to find emission factors for other substances and fuels.

Last updated: April 2, 2015


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