Table 9.1. Emissions from Energy Consumption at
Conventional Power Plants and Combined-Heat-and-Power Plants
2011 through 2021 (Thousand Metric Tons)

Year Carbon Dioxide (CO2) Sulfur Dioxide (SO2) Nitrogen Oxides (NOx)
2011 2,287,071 4,845 2,406
2012 2,156,875 3,704 2,148
2013 2,173,806 3,609 2,163
2014 2,168,284 3,454 2,100
2015 2,031,452 2,548 1,824
2016 1,928,401 1,807 1,630
2017 1,849,750 1,599 1,493
2018 1,872,330 1,517 1,474
2019 1,724,873 1,267 1,342
2020 1,553,586 1,023 1,211
2021 1,651,911 1,168 1,253

Notes:
The emissions data presented include total emissions from both electricity generation and the production of useful thermal output.
See Appendix A, Technical Notes, for a description of the sources and methodology used to develop the emissions estimates.
Source: Calculations made by the Office of Electricity, Renewables, and Uranium Statistics, U.S. Energy Information Administration.