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Electric Power Monthly

Data for June 2026 Release Date: August 26, 2026 Next Release Date: September 24, 2026
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 (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor Time Adjusted Capacity (MW) Capacity Factor
Annual Data
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 55.1% 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 57.4% 128,832.5 11.4% 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 220,623.2 40.5% 274,300.4 57.1% 129,085.6 11.6% 75,462.3 14.2% 5,123.0 15.1% 8,443.3 13.9% 13,875.8 1.2% 5,300.7 1.8%
2021 212,587.0 49.1% 277,618.5 55.0% 130,103.4 11.7% 74,003.4 12.5% 5,171.8 18.2% 8,385.5 14.2% 13,729.8 1.6% 5,522.7 1.8%
2022 196,396.3 48.4% 286,467.1 56.6% 130,170.6 12.9% 77,518.8 15.6% 5,526.9 18.1% 9,839.0 13.2% 15,005.7 1.6% 5,407.0 1.8%
2023 182,767.5 42.4% 291,134.7 59.7% 130,736.5 12.9% 76,908.1 17.4% 5,802.9 20.1% 8,743.2 10.1% 14,386.8 1.3% 5,418.9 1.8%
2024 176,028.6 42.6% 292,189.2 60.5% 132,099.1 13.9% 75,196.7 19.9% 6,044.6 18.0% 8,122.7 8.9% 14,167.2 1.9% 5,461.8 1.8%
2025 171,695.2 48.7% 291,470.5 58.4% 133,539.8 14.1% 76,136.3 19.8% 6,574.2 17.4% 7,996.7 11.3% 13,726.7 2.1% 5,436.5 1.9%
Year 2024
January 177,497.2 56.8% 293,471.8 64.1% 131,958.7 12.9% 75,752.5 15.9% 5,899.4 18.5% 8,122.7 10.8% 14,230.3 2.0% 5,471.1 1.8%
February 177,497.2 36.2% 293,471.8 56.6% 131,611.5 10.0% 75,745.5 10.4% 5,901.6 16.4% 8,122.7 8.2% 14,230.3 1.3% 5,471.3 1.6%
March 177,323.7 29.8% 293,471.8 51.1% 131,662.7 10.6% 75,334.8 13.0% 5,898.6 16.1% 8,122.7 8.0% 14,230.3 1.3% 5,472.2 1.8%
April 176,697.6 29.9% 292,884.3 46.9% 131,662.7 13.1% 75,334.8 15.9% 5,901.7 14.8% 8,122.7 8.0% 14,230.3 1.6% 5,474.9 2.2%
May 176,201.6 35.6% 292,984.3 53.9% 131,655.7 13.4% 75,334.8 20.4% 5,951.9 16.0% 8,122.7 8.5% 14,230.3 1.8% 5,466.3 1.7%
June 176,021.6 49.0% 291,603.0 65.7% 131,565.2 15.1% 75,084.8 26.3% 6,000.8 19.5% 8,122.7 8.6% 14,122.3 2.0% 5,457.1 1.9%
July 176,021.6 55.0% 291,603.0 75.8% 131,960.2 20.9% 75,084.8 32.0% 6,007.2 22.5% 8,122.7 10.2% 14,122.3 3.3% 5,470.8 1.7%
August 176,021.6 53.2% 291,064.9 75.3% 132,555.6 19.2% 75,084.8 32.4% 6,181.5 22.3% 8,122.7 9.5% 14,122.3 2.7% 5,465.5 1.9%
Sept 175,762.6 43.7% 291,601.2 67.6% 132,555.6 14.7% 75,084.8 21.6% 6,182.0 19.0% 8,122.7 7.8% 14,122.3 1.7% 5,454.9 1.6%
October 174,584.6 37.0% 291,454.9 55.6% 132,524.6 13.1% 74,879.0 19.5% 6,183.8 16.3% 8,122.7 8.2% 14,122.3 1.8% 5,455.3 1.8%
November 174,597.6 35.9% 291,464.9 54.9% 132,706.8 12.3% 74,875.6 16.4% 6,183.8 18.0% 8,122.7 8.3% 14,122.3 1.7% 5,448.1 1.7%
December 174,177.6 48.7% 291,238.9 58.5% 132,741.8 11.0% 74,786.7 14.2% 6,236.6 16.7% 8,122.7 10.5% 14,122.3 1.5% 5,434.3 1.9%
Year 2025
January 172,913.1 62.7% 291,333.6 61.9% 132,815.4 13.5% 76,045.7 18.8% 6,331.8 16.6% 7,996.7 14.4% 13,823.8 2.9% 5,451.2 1.7%
February 172,506.1 52.7% 291,333.6 58.0% 132,818.2 11.0% 76,045.7 15.8% 6,389.8 15.1% 7,996.7 10.5% 13,810.9 1.3% 5,455.2 1.5%
March 172,221.1 37.8% 291,274.6 46.9% 132,812.5 9.3% 75,947.7 11.8% 6,427.4 13.4% 7,996.7 9.7% 13,810.9 0.9% 5,453.9 1.3%
April 172,164.1 36.5% 291,288.1 44.1% 132,812.5 12.0% 75,947.7 17.0% 6,427.4 14.1% 7,996.7 8.8% 13,810.9 1.5% 5,445.5 1.8%
May 172,164.1 38.2% 291,348.2 51.9% 132,643.7 10.6% 75,945.7 17.3% 6,538.1 14.6% 7,996.7 10.1% 13,663.9 1.2% 5,431.5 1.1%
June 172,164.1 51.9% 291,401.2 63.7% 133,047.2 16.6% 75,945.7 24.2% 6,541.0 19.5% 7,996.7 11.9% 13,663.9 2.5% 5,431.5 2.4%
July 171,837.8 62.7% 291,401.2 71.8% 133,864.4 24.9% 76,283.5 32.4% 6,541.0 24.9% 7,996.7 15.1% 13,663.9 4.1% 5,431.5 2.8%
August 171,837.8 54.5% 291,401.2 72.3% 133,912.0 18.7% 76,283.5 26.9% 6,541.0 22.4% 7,996.7 11.1% 13,663.9 2.7% 5,435.3 1.9%
Sept 171,837.8 47.8% 291,401.2 66.3% 134,424.7 14.9% 76,238.5 21.3% 6,723.7 20.5% 7,996.7 10.5% 13,703.9 1.7% 5,426.5 2.1%
October 170,937.8 42.8% 291,401.2 53.4% 134,394.8 14.3% 76,238.5 19.3% 6,723.7 17.3% 7,996.7 12.0% 13,703.9 2.2% 5,427.6 2.1%
November 170,037.8 44.8% 291,961.3 52.1% 134,394.8 11.9% 76,238.5 15.4% 6,770.7 16.6% 7,996.7 8.9% 13,703.9 2.0% 5,428.6 1.9%
December 169,780.2 52.1% 292,093.3 58.3% 134,484.8 11.2% 76,460.5 16.4% 6,922.8 14.0% 7,996.7 12.4% 13,703.9 2.2% 5,420.6 1.7%
Year 2026
January 169,962.6 57.6% 293,464.1 58.9% 134,607.7 13.5% 75,716.0 19.2% 6,968.5 13.7% 7,936.4 16.9% 13,681.6 7.4% 5,392.0 2.0%
February 171,807.1 48.1% 293,606.6 57.0% 135,107.7 12.1% 75,560.7 17.2% 7,007.5 13.5% 7,928.8 14.3% 13,476.6 4.2% 5,392.1 1.5%
March 168,903.3 34.8% 293,718.6 48.5% 135,308.1 10.9% 76,411.0 16.4% 7,034.7 13.4% 8,331.0 9.3% 13,470.9 2.0% 5,386.9 2.0%
April 168,652.7 32.5% 293,814.8 46.6% 135,376.8 14.1% 76,664.3 18.3% 7,009.9 14.9% 8,331.0 10.0% 13,469.4 2.4% 5,445.3 2.1%
May 169,928.5 35.7% 294,767.4 51.3% 135,619.3 11.8% 75,440.9 19.1% 7,198.8 13.6% 8,329.0 10.2% 13,468.1 2.2% 5,448.6 1.4%
June 167,841.9 46.2% 295,003.3 62.5% 136,349.5 15.0% 76,758.8 25.3% 7,237.8 15.8% 8,329.0 10.2% 13,096.3 2.2% 5,413.3 2.0%

Values for 2024 and prior years are final. Values for 2025 and 2026 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.'

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