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Electric Power Monthly

Data for January 2021 Release Date: March 24, 2021 Next Release Date: April 26, 2021 full reportPDF
SAS Output
Table 6.07.A. Capacity Factors for Utility Scale Generators Primarily Using Fossil Fuels

  Coal Natural Gas Petroleum
Year/Month   Combined Cycle Gas Turbine Steam Turbine Internal Combustion Steam Turbine Gas Turbine Internal Combustion
  Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor Time Adjusted Capacity Capacity Factor
Annual Data
2011 314,056.1 62.8% 210,518.7 44.3% 119,144.1 7.9% 78,898.6 11.7% 2,822.5 8.4% 26,683.0 12.6% 18,397.7 1.3% 4,986.0 2.2%
2012 304,974.9 56.2% 217,938.2 52.2% 119,319.4 8.9% 74,200.2 13.3% 2,988.8 7.3% 22,483.7 13.7% 17,773.5 1.3% 4,942.5 2.0%
2013 302,604.4 59.4% 219,902.9 48.8% 123,025.6 8.3% 75,810.5 11.2% 2,996.2 8.8% 20,022.9 12.6% 17,224.1 0.9% 4,999.4 2.1%
2014 299,064.7 60.5% 224,183.2 48.6% 124,736.9 8.3% 75,049.1 10.3% 3,026.7 10.8% 18,057.0 13.0% 16,791.5 1.2% 5,011.3 2.1%
2015 286,082.7 54.3% 231,467.5 55.8% 123,444.3 9.8% 80,348.0 11.3% 3,507.8 11.9% 14,965.4 14.0% 16,122.8 1.3% 5,075.2 2.1%
2016 269,477.1 52.8% 236,442.8 55.4% 125,148.4 11.0% 81,225.1 12.3% 3,684.3 11.5% 13,993.7 12.2% 15,114.0 1.3% 5,082.8 2.3%
2017 259,930.2 53.1% 242,839.1 51.2% 125,806.6 9.6% 79,149.4 10.7% 4,225.5 11.6% 13,290.9 13.7% 14,275.3 1.0% 5,153.3 2.1%
2018 246,866.8 53.6% 254,403.3 55.0% 126,763.4 11.9% 76,177.8 12.6% 4,446.6 13.0% 13,300.1 14.2% 14,234.9 1.3% 5,289.7 1.9%
2019 235,089.3 47.5% 266,846.5 57.3% 128,832.5 11.3% 72,797.3 14.1% 4,848.3 15.3% 11,214.7 12.8% 14,009.7 1.0% 5,287.8 2.0%
2020 222,636.6 40.2% 274,350.6 56.6% 129,183.3 11.6% 71,908.6 14.3% 5,104.3 14.0% 10,981.0 13.4% 13,640.3 1.3% 5,269.5 1.8%
Year 2019
January 241,507.5 56.6% 261,918.1 54.6% 128,218.2 9.6% 73,728.3 8.4% 4,620.8 12.9% 11,347.1 12.8% 14,037.5 1.4% 5,285.8 2.0%
February 239,252.5 50.4% 261,918.1 55.8% 128,218.2 9.9% 73,730.3 6.9% 4,695.3 14.2% 11,347.1 12.5% 14,037.5 0.9% 5,287.8 1.9%
March 238,021.5 45.0% 261,601.1 51.0% 128,164.0 9.3% 73,188.3 9.3% 4,695.3 12.8% 11,347.1 11.8% 14,018.5 0.6% 5,287.4 1.7%
April 236,625.1 35.7% 264,436.4 45.8% 128,276.4 9.7% 73,191.0 10.9% 4,878.7 12.5% 11,201.1 10.9% 14,018.5 0.8% 5,283.2 1.7%
May 235,815.1 41.7% 265,631.1 49.2% 128,705.3 10.2% 73,191.0 13.7% 4,881.2 12.4% 11,201.1 16.4% 14,018.5 1.0% 5,290.0 1.9%
June 235,767.5 46.9% 268,823.5 59.9% 128,828.7 11.2% 72,899.9 16.7% 4,881.2 14.4% 11,201.1 15.6% 14,008.2 1.1% 5,289.2 1.9%
July 234,785.0 58.3% 269,658.1 70.5% 129,173.4 15.0% 72,853.9 24.9% 4,903.2 20.1% 11,201.1 17.5% 14,008.2 1.1% 5,293.9 2.1%
August 234,785.0 54.6% 269,658.1 71.6% 129,318.4 14.9% 72,853.9 26.1% 4,903.2 20.4% 11,201.1 16.7% 14,002.5 1.3% 5,292.1 2.2%
Sept 233,847.0 51.4% 269,658.1 64.2% 129,278.4 12.9% 72,853.9 19.8% 4,903.2 17.4% 11,134.1 14.4% 14,002.5 1.2% 5,292.6 2.4%
October 233,086.4 39.3% 269,110.5 54.5% 129,348.4 11.6% 72,211.9 14.6% 4,903.2 15.5% 11,134.1 8.8% 14,002.5 1.2% 5,292.1 2.3%
November 229,164.4 46.0% 269,670.1 52.2% 129,314.4 10.9% 72,038.9 8.7% 4,903.2 16.1% 11,134.1 7.6% 14,002.5 0.8% 5,292.9 2.0%
December 228,657.4 43.3% 269,766.0 57.4% 129,098.3 10.2% 70,909.4 8.4% 5,001.6 14.1% 11,134.1 8.6% 13,962.5 0.8% 5,267.4 2.1%
Year 2020
January 225,599.2 39.2% 270,491.8 58.4% 129,149.9 8.9% 72,049.5 9.8% 4,924.0 10.9% 11,047.6 11.1% 13,866.5 1.0% 5,268.4 1.8%
February 225,556.7 36.5% 270,634.8 58.8% 129,227.6 9.2% 72,049.5 9.7% 5,014.4 11.4% 11,047.6 8.9% 13,842.5 0.8% 5,268.4 1.8%
March 224,691.3 30.9% 271,916.1 52.2% 129,155.9 9.7% 72,025.7 11.1% 5,018.5 13.1% 11,047.6 13.8% 13,610.5 0.8% 5,268.4 1.6%
April 224,711.3 25.6% 272,916.1 47.3% 129,153.1 8.0% 72,025.7 10.2% 5,113.7 10.8% 11,047.6 12.9% 13,610.5 0.6% 5,267.3 1.5%
May 223,591.5 28.6% 274,182.3 48.2% 129,141.1 9.0% 71,893.7 11.8% 5,152.1 11.4% 11,047.6 11.3% 13,610.5 0.8% 5,265.5 1.4%
June 222,624.4 41.6% 275,939.4 59.6% 129,077.5 13.8% 71,881.2 17.7% 5,144.8 15.1% 11,047.6 16.2% 13,610.5 1.7% 5,265.5 1.7%
July 222,624.4 55.3% 275,939.4 70.7% 129,163.5 22.5% 71,863.4 27.7% 5,144.8 21.4% 11,047.6 18.0% 13,610.5 3.5% 5,264.6 2.2%
August 222,105.4 56.2% 275,953.5 68.9% 129,248.3 17.1% 71,863.4 23.4% 5,144.8 20.6% 11,047.6 16.8% 13,610.5 2.2% 5,272.9 1.8%
Sept 221,455.4 43.6% 275,995.8 60.2% 129,191.0 11.5% 71,863.4 16.2% 5,144.8 15.4% 11,047.6 12.9% 13,610.5 0.9% 5,272.9 2.1%
October 220,316.4 37.4% 276,013.5 53.1% 129,167.0 12.1% 71,863.4 15.3% 5,146.8 15.8% 11,047.6 11.5% 13,586.5 1.3% 5,272.9 2.2%
November 220,073.4 39.2% 276,028.5 47.3% 129,167.0 9.0% 71,863.4 9.3% 5,146.0 11.6% 11,047.6 14.5% 13,586.5 0.8% 5,273.5 1.5%
December 218,424.0 48.6% 276,068.5 54.0% 129,355.4 8.7% 71,670.4 9.0% 5,154.9 10.4% 10,261.6 12.9% 13,536.8 0.8% 5,273.5 1.8%
Year 2021
January 216,647.3 51.5% 276,195.6 54.4% 129,248.5 7.5% 72,280.1 8.0% 5,157.8 8.8% 10,232.2 13.7% 13,539.1 0.6% 5,285.0 1.0%

Values for 2019 and prior years are final. Values for 2020 and 2021 are preliminary.
Time adjusted capacity for month rows is the summer capacity of generators in operation for the entire month; units that began operation during the month or that retired during the month are excluded. Time adjusted capacity for year rows is a time weighted average of the month rows.
Capacity factors are a comparison of net generation with available capacity. See the technical note for an explanation of how capacity factors are calculated.
Sources: U.S. Energy Information Administration, Form EIA-923, Power Plant Operations Report; U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report' and Form EIA-860M, 'Monthly Update to the Annual Electric Generator Report.'