| Table 4.08.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 | ||||||||||||||||
| 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 | 55.1% | 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% |
| Year 2021 | ||||||||||||||||
| January | 214,601.5 | 51.5% | 275,710.6 | 54.7% | 129,543.1 | 8.2% | 74,184.1 | 7.7% | 5,121.3 | 15.1% | 8,685.9 | 15.9% | 13,743.2 | 1.0% | 5,537.5 | 1.4% |
| February | 214,601.5 | 61.1% | 276,710.6 | 51.3% | 129,522.1 | 10.3% | 74,184.7 | 11.9% | 5,119.0 | 17.1% | 8,685.9 | 15.0% | 13,743.2 | 2.2% | 5,533.6 | 2.0% |
| March | 214,052.7 | 39.5% | 276,584.0 | 45.3% | 129,522.1 | 8.0% | 74,184.7 | 7.6% | 5,120.3 | 15.9% | 8,685.9 | 13.7% | 13,743.2 | 1.3% | 5,539.0 | 1.8% |
| April | 213,710.7 | 35.7% | 276,614.0 | 45.5% | 129,755.4 | 10.4% | 74,184.7 | 10.0% | 5,120.3 | 16.8% | 8,685.9 | 9.0% | 13,743.2 | 1.4% | 5,536.4 | 1.7% |
| May | 213,152.2 | 40.9% | 276,682.0 | 47.6% | 130,036.3 | 9.7% | 74,081.6 | 10.2% | 5,180.3 | 14.4% | 8,685.9 | 11.9% | 13,743.2 | 1.3% | 5,535.9 | 1.2% |
| June | 212,180.1 | 58.1% | 277,202.0 | 61.8% | 130,036.3 | 15.0% | 74,081.1 | 18.0% | 5,171.9 | 20.1% | 8,173.5 | 10.5% | 13,734.1 | 2.0% | 5,530.7 | 1.6% |
| July | 212,180.1 | 65.4% | 277,202.0 | 67.9% | 130,070.3 | 16.4% | 73,989.3 | 20.0% | 5,169.6 | 22.6% | 8,173.5 | 16.2% | 13,734.1 | 1.8% | 5,512.6 | 1.4% |
| August | 212,180.1 | 65.6% | 277,971.5 | 68.4% | 130,410.4 | 17.0% | 73,989.3 | 21.3% | 5,194.0 | 23.0% | 8,173.5 | 17.5% | 13,734.1 | 2.3% | 5,517.4 | 1.8% |
| September | 212,180.1 | 52.8% | 278,530.7 | 58.5% | 130,499.4 | 11.1% | 73,840.3 | 14.5% | 5,199.4 | 20.3% | 8,173.5 | 15.8% | 13,734.1 | 1.5% | 5,512.0 | 2.2% |
| October | 211,277.1 | 40.7% | 278,545.7 | 53.2% | 130,499.4 | 12.4% | 73,775.5 | 12.7% | 5,212.2 | 18.3% | 8,173.5 | 16.0% | 13,717.5 | 1.6% | 5,511.2 | 2.2% |
| November | 211,264.5 | 39.2% | 279,817.8 | 51.6% | 130,663.1 | 11.6% | 73,779.4 | 8.9% | 5,221.7 | 17.3% | 8,173.5 | 15.9% | 13,700.1 | 1.5% | 5,508.5 | 2.0% |
| December | 209,825.7 | 39.6% | 279,817.8 | 53.6% | 130,644.1 | 9.6% | 73,779.4 | 7.4% | 5,227.7 | 17.1% | 8,173.5 | 13.8% | 13,689.1 | 1.2% | 5,498.2 | 2.0% |
| Year 2022 | ||||||||||||||||
| January | 202,043.3 | 57.4% | 284,236.2 | 55.6% | 129,881.8 | 11.3% | 78,088.0 | 14.8% | 5,454.3 | 16.0% | 9,839.0 | 19.6% | 15,279.8 | 1.4% | 5,401.4 | 2.2% |
| February | 202,013.8 | 52.2% | 284,236.2 | 52.4% | 129,967.8 | 9.6% | 78,088.0 | 11.7% | 5,454.3 | 14.8% | 9,839.0 | 15.3% | 15,279.8 | 0.9% | 5,402.0 | 1.8% |
| March | 200,821.8 | 41.0% | 284,247.2 | 46.6% | 130,009.3 | 8.2% | 77,514.0 | 8.5% | 5,484.9 | 13.6% | 9,839.0 | 9.8% | 15,245.8 | 1.0% | 5,392.6 | 1.7% |
| April | 200,376.8 | 38.5% | 284,450.3 | 44.2% | 130,070.8 | 9.6% | 77,514.0 | 9.6% | 5,486.4 | 13.5% | 9,839.0 | 10.1% | 15,119.1 | 0.9% | 5,395.3 | 1.7% |
| May | 198,851.8 | 42.1% | 283,899.1 | 49.6% | 130,070.8 | 12.5% | 77,514.0 | 14.6% | 5,544.4 | 14.7% | 9,839.0 | 12.0% | 15,119.1 | 1.4% | 5,399.7 | 1.8% |
| June | 195,863.8 | 52.5% | 286,389.0 | 61.2% | 130,127.6 | 16.9% | 77,510.0 | 20.2% | 5,546.0 | 18.8% | 9,839.0 | 12.2% | 14,947.1 | 1.8% | 5,407.0 | 1.9% |
| July | 195,881.8 | 59.6% | 287,485.0 | 70.5% | 130,274.1 | 20.1% | 77,510.0 | 28.1% | 5,549.7 | 23.0% | 9,839.0 | 10.3% | 14,947.1 | 2.5% | 5,410.4 | 1.7% |
| August | 194,856.8 | 59.2% | 288,566.5 | 72.4% | 130,035.1 | 18.5% | 77,379.0 | 22.4% | 5,563.9 | 25.1% | 9,839.0 | 11.8% | 14,947.1 | 2.2% | 5,410.7 | 1.7% |
| September | 192,425.8 | 47.3% | 288,493.5 | 63.9% | 130,259.8 | 13.8% | 77,374.0 | 16.3% | 5,559.0 | 21.7% | 9,839.0 | 13.1% | 14,858.1 | 1.7% | 5,409.2 | 1.8% |
| October | 192,425.8 | 38.7% | 288,458.5 | 53.0% | 130,348.7 | 10.2% | 77,374.0 | 13.3% | 5,558.0 | 17.9% | 9,839.0 | 12.3% | 14,817.2 | 1.4% | 5,413.1 | 1.8% |
| November | 192,271.3 | 40.9% | 288,485.6 | 52.0% | 130,380.6 | 11.2% | 77,379.8 | 13.7% | 5,555.9 | 17.9% | 9,839.0 | 13.6% | 14,789.6 | 1.0% | 5,420.9 | 1.6% |
| December | 189,316.3 | 51.4% | 288,504.6 | 56.8% | 130,606.5 | 12.5% | 77,026.8 | 14.1% | 5,560.7 | 19.3% | 9,839.0 | 18.2% | 14,735.6 | 2.8% | 5,421.2 | 2.2% |
| Year 2023 | ||||||||||||||||
| January | 186,822.6 | 44.6% | 287,456.6 | 57.4% | 130,416.1 | 9.3% | 78,868.8 | 9.6% | 5,738.6 | 18.7% | 8,743.2 | 9.1% | 14,494.8 | 1.0% | 5,428.8 | 1.9% |
| February | 186,812.0 | 37.3% | 287,688.6 | 57.1% | 130,416.1 | 9.2% | 78,868.8 | 10.3% | 5,742.7 | 18.0% | 8,743.2 | 11.7% | 14,494.8 | 1.4% | 5,426.8 | 1.8% |
| March | 186,007.1 | 36.2% | 288,941.6 | 53.6% | 130,356.1 | 10.5% | 78,303.3 | 11.5% | 5,744.2 | 19.5% | 8,743.2 | 8.9% | 14,494.8 | 1.1% | 5,422.2 | 1.8% |
| April | 186,007.1 | 30.6% | 289,463.1 | 47.9% | 130,356.1 | 11.2% | 77,868.3 | 13.4% | 5,746.9 | 16.2% | 8,743.2 | 8.4% | 14,494.8 | 1.2% | 5,422.2 | 2.0% |
| May | 184,515.1 | 32.6% | 291,190.1 | 53.0% | 130,248.2 | 12.4% | 77,038.3 | 15.4% | 5,745.0 | 16.0% | 8,743.2 | 7.9% | 14,463.5 | 1.2% | 5,413.4 | 1.8% |
| June | 182,361.9 | 44.5% | 291,270.1 | 63.7% | 130,403.5 | 15.0% | 76,724.3 | 22.1% | 5,752.6 | 21.4% | 8,743.2 | 10.2% | 14,315.1 | 1.3% | 5,399.1 | 1.8% |
| July | 181,713.0 | 58.3% | 292,441.8 | 74.0% | 130,558.5 | 19.4% | 76,724.3 | 31.7% | 5,752.6 | 26.0% | 8,743.2 | 14.3% | 14,315.1 | 1.6% | 5,414.9 | 1.6% |
| August | 181,099.7 | 58.0% | 292,441.8 | 74.1% | 131,221.5 | 19.0% | 76,724.3 | 31.0% | 5,884.2 | 26.7% | 8,743.2 | 13.3% | 14,315.1 | 1.9% | 5,416.6 | 1.6% |
| September | 180,234.7 | 46.4% | 292,441.8 | 66.2% | 131,221.5 | 13.6% | 75,688.3 | 22.4% | 5,878.3 | 22.0% | 8,743.2 | 14.5% | 14,315.1 | 1.3% | 5,425.7 | 1.5% |
| October | 179,749.7 | 38.6% | 293,100.7 | 53.7% | 131,221.5 | 12.6% | 75,687.9 | 16.3% | 5,879.5 | 18.9% | 8,743.2 | 8.7% | 14,315.1 | 1.3% | 5,429.6 | 1.7% |
| November | 179,749.7 | 39.7% | 293,100.7 | 54.8% | 131,217.5 | 11.5% | 75,681.6 | 14.1% | 5,880.7 | 18.8% | 8,743.2 | 6.8% | 14,315.1 | 1.0% | 5,414.6 | 2.1% |
| December | 178,441.7 | 42.3% | 293,802.5 | 60.0% | 131,178.5 | 10.1% | 74,854.6 | 10.8% | 5,885.5 | 18.6% | 8,743.2 | 7.7% | 14,315.1 | 1.2% | 5,413.5 | 1.8% |
| Values are final. 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.' |