U.S. Energy Information Administration logo
Skip to sub-navigation

Electric Power Monthly

Data for June 2020 Release Date: August 25, 2020 Next Release Date: September 24, 2020 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
2010 313,393.9 67.1% 202,404.4 44.3% 116,426.0 7.8% 80,233.7 11.1% 2,543.0 6.5% 29,871.2 13.6% 19,565.5 2.0% 5,016.0 2.1%
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 235,534.1 47.5% 267,130.4 56.8% 128,480.5 11.8% 73,591.7 14.3% 4,844.3 13.9% 11,712.2 12.7% 14,192.6 1.1% 5,250.4 2.2%
Year 2018
January 251,730.8 64.0% 247,709.0 51.4% 126,362.3 11.7% 78,615.1 10.9% 4,280.9 11.8% 13,440.4 19.9% 14,336.6 3.5% 5,330.8 2.5%
February 250,522.8 49.1% 247,709.0 51.6% 126,189.1 9.3% 78,185.1 5.8% 4,292.9 12.0% 13,440.4 12.1% 14,336.6 0.8% 5,333.5 1.8%
March 249,781.8 43.8% 247,709.0 49.1% 126,170.5 10.3% 77,411.2 7.5% 4,288.5 11.9% 13,440.4 10.9% 14,336.6 0.9% 5,326.9 1.8%
April 248,603.8 41.5% 248,199.0 45.6% 126,338.5 10.5% 77,369.9 8.5% 4,372.4 10.9% 13,440.4 12.9% 14,336.6 1.0% 5,317.8 2.0%
May 248,603.8 46.7% 252,604.7 49.8% 126,690.5 11.3% 76,359.3 15.3% 4,372.4 12.0% 13,440.4 10.0% 14,336.6 1.1% 5,319.2 1.8%
June 245,407.8 58.0% 255,100.3 58.7% 126,881.1 12.4% 75,658.1 16.3% 4,362.4 13.1% 13,440.4 15.0% 14,166.6 1.4% 5,275.1 1.8%
July 245,407.8 63.8% 256,721.3 69.8% 126,878.6 16.3% 75,658.1 23.3% 4,369.0 18.3% 13,440.4 16.6% 14,166.6 1.5% 5,276.5 1.8%
August 245,407.8 63.6% 257,487.3 69.3% 127,267.4 15.0% 75,658.1 20.3% 4,594.6 16.9% 13,440.4 15.6% 14,166.6 1.3% 5,277.8 2.1%
Sept 245,113.4 55.3% 258,463.3 63.2% 127,146.3 13.8% 75,650.6 15.6% 4,594.3 13.8% 13,440.4 16.9% 14,166.6 1.3% 5,274.0 2.0%
October 244,837.5 48.5% 258,836.7 52.9% 127,104.0 11.6% 75,120.6 12.6% 4,595.0 12.4% 13,440.4 13.7% 14,166.6 1.1% 5,269.0 2.0%
November 244,426.5 53.2% 260,948.0 48.8% 126,977.7 10.5% 74,758.6 8.7% 4,613.6 11.7% 13,440.4 13.4% 14,154.6 1.1% 5,240.4 1.8%
December 242,785.6 55.9% 260,868.5 48.9% 127,108.3 9.1% 73,841.6 6.3% 4,613.6 11.0% 11,788.4 12.6% 14,154.6 1.0% 5,237.9 1.7%
Year 2019
January 242,491.4 56.5% 263,679.0 54.0% 127,778.9 8.0% 73,634.6 8.7% 4,631.1 10.0% 11,788.4 12.8% 14,214.1 0.7% 5,248.6 2.0%
February 239,557.9 50.4% 263,679.0 55.3% 127,778.9 8.5% 74,619.1 8.0% 4,703.6 12.3% 11,788.4 12.8% 14,214.1 0.6% 5,250.6 1.7%
March 238,326.9 45.0% 263,362.0 50.0% 127,780.0 8.0% 74,010.1 9.0% 4,703.6 10.9% 11,855.4 12.2% 14,195.1 0.5% 5,247.8 1.6%
April 236,845.5 35.9% 266,197.3 45.0% 127,893.2 9.6% 74,005.8 11.0% 4,882.5 10.0% 11,709.4 11.1% 14,195.1 0.8% 5,245.4 1.8%
May 236,095.5 41.7% 266,482.7 48.6% 128,385.3 10.2% 74,005.8 13.8% 4,882.5 10.5% 11,709.4 15.8% 14,195.1 1.0% 5,254.2 2.1%
June 235,987.9 47.0% 268,187.8 59.6% 128,502.4 11.4% 73,711.1 16.4% 4,883.4 12.7% 11,709.4 15.0% 14,184.8 1.1% 5,254.2 2.3%
July 235,005.4 58.4% 269,033.1 69.8% 128,862.6 19.3% 73,681.1 24.7% 4,905.4 21.1% 11,709.4 16.7% 14,184.8 2.3% 5,255.9 3.0%
August 235,005.4 54.6% 269,033.1 70.8% 128,962.6 18.7% 73,681.1 25.3% 4,905.4 22.0% 11,709.4 16.4% 14,179.1 2.4% 5,247.6 3.2%
Sept 234,817.4 51.6% 269,033.1 63.9% 128,922.6 14.8% 73,681.1 19.9% 4,905.4 17.6% 11,642.4 15.1% 14,192.6 1.6% 5,251.6 2.7%
October 233,595.4 39.2% 268,480.5 54.8% 129,000.1 13.6% 73,196.1 15.9% 4,905.4 14.5% 11,642.4 8.9% 14,192.6 1.5% 5,251.6 2.4%
November 229,673.4 46.0% 269,047.5 52.3% 128,966.1 10.7% 73,023.1 9.2% 4,905.4 13.6% 11,642.4 7.5% 14,192.6 0.6% 5,251.6 2.1%
December 229,241.4 43.2% 269,143.4 57.0% 128,876.8 8.8% 71,952.3 8.6% 4,910.3 11.1% 11,642.4 7.9% 14,172.6 0.5% 5,245.2 1.8%
Year 2020
January 227,611.7 39.1% 269,932.4 58.5% 128,783.4 8.9% 71,503.5 9.0% 4,927.8 10.2% 11,610.7 11.1% 14,082.8 0.9% 5,228.9 1.8%
February 227,178.5 36.4% 270,379.7 58.8% 128,899.7 9.5% 70,137.2 9.9% 5,024.8 11.3% 11,597.9 8.2% 14,097.4 0.7% 5,254.9 1.8%
March 225,799.1 30.9% 271,636.7 52.1% 128,842.1 9.7% 70,547.7 11.1% 5,028.6 12.7% 11,601.8 13.4% 13,836.1 0.7% 5,271.6 1.6%
April 225,819.2 25.5% 272,708.9 47.3% 128,823.6 8.0% 70,431.8 10.5% 5,117.5 10.5% 11,594.3 12.9% 13,943.9 0.6% 5,267.1 1.5%
May 224,525.1 28.4% 274,338.4 48.2% 129,014.3 9.3% 70,285.4 12.4% 5,157.5 11.1% 11,594.3 11.6% 13,770.4 0.8% 5,268.1 1.4%
June 223,559.6 41.4% 275,980.0 59.6% 128,906.1 13.7% 70,736.6 18.1% 5,150.2 14.6% 11,134.1 16.5% 13,706.5 1.5% 5,267.8 1.7%

Values for 2018 and prior years are final. Values for 2019 and 2020 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.'