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How much of U.S. carbon dioxide emissions are associated with electricity generation?

In 2021, total emissions of carbon dioxide (CO2) by the United States electric power sector were 1,552 million metric tons (MMmt). 

The Electric Power Sector is the U.S. division that consists of power plants whose sole purpose is to sell electricity, or electricity and heat, to the public. The power plants can either be electricity only power plants or combined heat and power plants (CHP).

The Electric Power Sector consists of about 32% of total energy related emissions. Other emissions are associated with electricity generated outside the Electric Power Sector by the Commercial and Industrial sectors. 

This EIA report includes further data on CO2 emissions in the U.S.

Of the emissions from the Electric Power Sector, the below graph shows the percentage of emissions by fuel source.