The most polluting power producer in the United States in 2021 was Vistra Energy, having emitted 110 million tons of carbon dioxide (MTCO₂). Coal-fired plants accounted for roughly 63 percent of Vistra Energy's CO₂ emissions that year, while natural gas accounted for 36 percent. Coal is the most polluting of fossil fuel, typically producing twice the carbon emissions of natural gas when combusted.
Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source
(in million tons)
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MJB&A, & Environmental Resources Management. (November 21, 2023). Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source (in million tons) [Graph]. In Statista. Retrieved February 07, 2025, from https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed
MJB&A, und Environmental Resources Management. "Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source (in million tons)." Chart. November 21, 2023. Statista. Accessed February 07, 2025. https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed
MJB&A, Environmental Resources Management. (2023). Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source (in million tons). Statista. Statista Inc.. Accessed: February 07, 2025. https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed
MJB&A, and Environmental Resources Management. "Carbon Dioxide Emissions from Leading Electric Power Producers in The United States in 2021, by Fuel Source (in Million Tons)." Statista, Statista Inc., 21 Nov 2023, https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed
MJB&A & Environmental Resources Management, Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source (in million tons) Statista, https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed (last visited February 07, 2025)
Carbon dioxide emissions from leading electric power producers in the United States in 2021, by fuel source (in million tons) [Graph], MJB&A, & Environmental Resources Management, November 21, 2023. [Online]. Available: https://www.statista.com/statistics/1195597/total-co2-emissions-from-leading-power-producers-in-the-us-by-source/?__sso_cookie_checker=failed