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Electric Power Monthly

Data for January 2020  |  Release date: March 24, 2020  |  Next release: April 24, 2020  |
full report  |  Re-release date: April 2, 2020  Revision

Previous Issues

SAS Output
Table 6.07.B. Capacity Factors for Utility Scale Generators Primarily Using Non-Fossil Fuels

  Geothermal Hydroelectric Nuclear Other Biomass Other Gas Solar Wind Wood
Year/Month   Photovoltaic Thermal  
  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 Time Adjusted Capacity Capacity Factor
Annual Data
2010 2,392.1 71.6% 78,810.3 37.5% 101,167.4 91.1% 4,298.7 64.2% 1,929.0 50.5% 206.8 20.2% 473.0 24.5% 35,702.6 29.7% 6,991.5 61.5%
2011 2,407.9 71.5% 78,564.7 45.8% 101,265.1 89.1% 4,469.8 64.2% 1,902.7 54.1% 537.0 19.0% 485.3 23.9% 42,019.2 32.1% 7,000.3 59.6%
2012 2,531.8 68.3% 78,296.6 39.6% 101,166.0 86.6% 4,639.7 63.3% 1,802.8 59.6% 1,527.1 20.4% 476.0 23.6% 49,458.0 31.8% 7,089.1 61.3%
2013 2,509.5 71.8% 78,873.5 38.8% 99,006.8 90.8% 4,949.7 62.3% 2,171.6 55.9% 3,525.2 24.5% 552.1 17.4% 59,175.6 32.4% 7,887.9 59.0%
2014 2,513.3 72.0% 79,582.8 37.2% 98,569.3 91.7% 5,114.6 62.7% 1,994.0 54.0% 6,555.6 25.6% 1,445.3 18.3% 60,587.8 34.0% 8,319.7 60.0%
2015 2,523.0 71.9% 79,650.8 35.7% 98,614.6 92.3% 5,104.5 62.6% 2,527.7 60.8% 9,521.6 25.5% 1,697.3 21.7% 67,106.2 32.2% 9,024.5 59.3%
2016 2,516.6 71.6% 79,806.0 38.2% 99,364.8 92.3% 5,099.5 62.7% 2,458.8 64.8% 14,161.4 25.0% 1,757.9 22.1% 74,162.7 34.5% 8,979.8 58.3%
2017 2,460.4 73.2% 79,698.8 43.0% 99,619.5 92.3% 5,125.6 61.8% 2,375.8 62.8% 21,940.9 25.6% 1,757.9 21.8% 83,355.6 34.6% 8,807.5 60.2%
2018 2,391.5 76.0% 79,771.9 41.9% 99,605.2 92.5% 5,059.0 61.8% 2,543.9 65.4% 27,143.3 25.1% 1,757.9 23.6% 89,228.5 34.6% 8,760.2 60.6%
2019 2,457.2 74.4% 79,824.2 39.1% 98,787.9 93.5% 4,983.1 59.2% 2,547.7 67.0% 31,832.9 24.5% 1,757.9 21.2% 97,649.0 34.8% 8,501.4 60.9%
Year 2018
January 2,387.5 75.3% 79,771.8 42.2% 99,730.6 100.6% 5,108.5 62.2% 2,543.9 66.2% 25,311.1 16.3% 1,757.9 10.0% 87,552.6 38.7% 8,813.0 65.3%
February 2,403.5 78.9% 79,771.8 46.4% 99,730.6 96.7% 5,083.1 64.6% 2,543.9 66.6% 25,968.4 20.9% 1,757.9 16.1% 88,563.2 38.8% 8,813.0 62.5%
March 2,382.2 76.8% 79,785.3 43.6% 99,730.6 90.3% 5,086.1 62.0% 2,543.9 63.3% 26,067.6 24.3% 1,757.9 19.2% 88,787.7 40.1% 8,780.5 61.7%
April 2,392.2 69.0% 79,792.3 48.9% 99,730.6 82.4% 5,086.1 60.9% 2,543.9 61.6% 26,591.3 29.7% 1,757.9 24.4% 88,789.2 41.3% 8,780.5 55.6%
May 2,392.2 77.7% 79,753.3 51.3% 99,730.6 90.7% 5,083.5 59.4% 2,543.9 63.2% 26,859.7 31.8% 1,757.9 32.9% 89,086.2 36.0% 8,761.5 58.0%
June 2,392.2 75.5% 79,753.8 48.1% 99,730.6 97.1% 5,006.9 63.0% 2,543.9 64.1% 27,291.3 34.9% 1,757.9 41.7% 89,078.2 38.4% 8,775.5 61.7%
July 2,392.2 77.0% 79,751.6 42.3% 99,730.6 97.7% 5,050.2 62.3% 2,543.9 65.8% 27,451.7 31.1% 1,757.9 30.1% 89,227.2 24.7% 8,767.2 63.7%
August 2,392.2 76.8% 79,751.6 37.1% 99,730.6 97.4% 5,042.5 62.6% 2,543.9 68.7% 27,590.1 30.5% 1,757.9 32.5% 89,387.5 29.8% 8,748.7 62.2%
Sept 2,392.2 77.1% 79,751.6 33.4% 99,277.9 90.3% 5,042.5 58.3% 2,543.9 67.2% 27,674.0 27.7% 1,757.9 34.8% 89,469.5 28.6% 8,748.7 58.5%
October 2,392.2 71.5% 79,753.6 32.9% 99,277.9 80.4% 5,041.4 61.0% 2,543.9 64.3% 27,989.5 22.4% 1,757.9 20.7% 89,941.8 31.5% 8,748.7 56.5%
November 2,392.2 77.3% 79,753.6 38.1% 99,432.9 89.3% 5,039.0 62.3% 2,543.9 67.4% 28,158.3 17.3% 1,757.9 13.3% 90,282.8 33.8% 8,694.6 60.4%
December 2,387.9 79.4% 79,870.8 38.4% 99,432.9 96.9% 5,038.6 63.2% 2,543.9 67.0% 28,690.2 13.7% 1,757.9 7.0% 90,534.1 34.8% 8,694.6 61.4%
Year 2019
January 2,451.2 77.8% 79,868.4 40.7% 99,391.6 99.7% 5,030.5 59.8% 2,543.9 67.4% 30,261.1 15.5% 1,757.9 8.4% 94,391.7 35.5% 8,641.1 62.9%
February 2,451.2 79.4% 79,879.1 40.7% 99,391.6 96.9% 5,030.5 59.3% 2,543.9 68.9% 30,924.8 17.7% 1,757.9 10.9% 95,314.5 35.8% 8,641.1 62.6%
March 2,451.2 78.8% 79,895.1 43.0% 99,391.6 88.0% 4,996.6 58.1% 2,543.9 64.8% 31,132.5 24.2% 1,757.9 19.8% 95,806.3 36.4% 8,490.4 58.6%
April 2,459.1 70.0% 79,895.1 44.3% 99,546.6 84.5% 4,996.6 56.4% 2,548.9 63.2% 31,355.3 28.8% 1,757.9 25.5% 96,636.3 42.6% 8,567.3 56.4%
May 2,459.1 73.6% 79,875.2 50.6% 98,873.0 90.9% 4,991.0 58.7% 2,548.9 65.6% 31,444.8 29.3% 1,757.9 25.7% 96,638.1 36.0% 8,552.3 59.2%
June 2,459.1 76.9% 79,879.1 46.0% 98,873.0 96.7% 4,971.5 61.0% 2,548.9 66.1% 31,508.0 33.1% 1,757.9 35.5% 96,867.6 32.6% 8,482.8 61.8%
July 2,459.1 77.2% 79,880.6 39.9% 98,873.0 98.1% 4,973.1 60.3% 2,548.9 70.2% 31,818.6 32.6% 1,757.9 31.4% 98,111.7 30.0% 8,512.2 63.7%
August 2,459.1 77.0% 79,741.2 35.4% 98,873.0 97.8% 4,969.2 60.8% 2,548.9 67.1% 32,054.4 31.2% 1,757.9 32.0% 98,387.3 26.9% 8,512.2 66.3%
Sept 2,459.1 78.2% 79,741.0 28.4% 98,070.2 93.1% 4,959.3 59.4% 2,548.9 69.0% 32,276.1 27.4% 1,757.9 24.3% 98,936.2 33.9% 8,422.9 60.9%
October 2,459.1 69.8% 79,746.4 27.5% 98,070.2 85.0% 4,961.0 59.0% 2,548.9 61.5% 32,511.0 23.5% 1,757.9 23.0% 99,786.0 37.8% 8,415.9 57.2%
November 2,459.1 62.8% 79,746.4 35.7% 98,070.2 90.8% 4,962.4 58.4% 2,548.9 72.6% 32,999.2 17.5% 1,757.9 11.3% 99,952.8 35.4% 8,415.9 59.5%
December 2,459.1 71.1% 79,746.4 37.4% 98,070.2 100.1% 4,958.6 59.7% 2,548.9 68.3% 33,647.2 13.1% 1,757.9 5.4% 100,791.5 35.6% 8,372.9 62.2%
Year 2020
January 2,471.7 68.3% 79,851.9 40.9% 98,042.4 101.7% 4,909.5 61.0% 2,548.9 70.2% 35,466.7 16.3% 1,758.1 8.1% 103,575.3 36.7% 8,422.4 62.3%

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.'