Electric Power Monthly

Data for September 2014  |  Release Date: November 25, 2014  |  Next Release: December 23, 2014 
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SAS Output
Table 6.7.A. Capacity Factors for Utility Scale Generators Primarily Using Fossil Fuels, January 2008-September 2014

  Coal Natural Gas Petroleum
Period
Natural Gas Fired Combined Cycle Natural Gas Fired Combustion Turbine Steam Turbine Internal Combustion Engine Steam Turbine
Petroleum Liquids Fired Combustion Turbine
Internal Combustion Engine
Annual Factors
2008 73.4% 40.1% 5.2% 12.4% 4.8% 15.6% 1.5% 2.2%
2009 65.1% 39.8% 4.5% 11.2% 4.8% 14.5% 1.6% 2.3%
2010 67.9% 43.8% 5.2% 11.4% 4.8% 13.5% 1.9% 2.0%
2011 63.7% 43.6% 5.1% 12.4% 7.3% 12.0% 1.2% 2.2%
2012 56.7% 51.1% 6.0% 12.8% 5.5% 12.8% 1.2% 2.0%
2013 59.7% 46.5% 4.1% 10.7% 21.5% 11.7% 0.9% 6.7%
2012
January 56.9% 48.4% 3.3% 6.2% 5.3% 9.8% 0.6% 2.2%
February 53.8% 51.7% 3.4% 6.9% 5.3% 8.7% 0.5% 1.8%
March 46.5% 46.5% 4.4% 9.6% 5.5% 11.0% 0.8% 2.0%
April 44.1% 46.2% 6.3% 15.3% 6.0% 13.5% 1.0% 2.1%
May 51.5% 51.0% 7.4% 15.2% 5.3% 14.4% 1.5% 2.0%
June 60.1% 57.7% 8.0% 18.0% 6.2% 14.9% 1.5% 1.9%
July 70.6% 64.5% 14.3% 22.3% 6.8% 19.5% 3.0% 2.2%
August 67.2% 63.5% 8.4% 22.5% 6.2% 16.8% 1.9% 2.1%
Sept 57.3% 55.6% 5.8% 13.1% 5.4% 13.7% 1.2% 2.3%
October 53.8% 45.8% 3.5% 9.9% 4.6% 11.9% 0.8% 2.1%
November 58.8% 40.1% 4.0% 8.9% 4.7% 10.6% 0.6% 1.9%
December 58.9% 41.9% 2.9% 6.1% 4.9% 8.6% 0.7% 2.1%
2013
January 60.8% 44.8% 2.6% 7.2% 14.6% 10.0% 0.4% 5.7%
February 60.7% 45.0% 2.3% 6.6% 16.0% 9.6% 0.3% 4.6%
March 57.4% 42.3% 3.3% 6.7% 21.4% 9.7% 0.2% 5.3%
April 51.4% 38.4% 3.5% 7.6% 25.0% 10.7% 0.7% 8.3%
May 53.1% 39.7% 3.7% 9.7% 19.2% 12.4% 0.8% 5.6%
June 63.7% 49.3% 4.5% 15.1% 25.0% 14.5% 0.9% 5.0%
July 67.9% 56.8% 8.0% 18.6% 29.4% 17.7% 2.3% 8.7%
August 66.4% 58.3% 6.2% 18.0% 32.2% 13.9% 1.1% 9.6%
Sept 61.3% 51.0% 4.9% 14.2% 22.7% 13.3% 1.5% 6.7%
October 54.0% 43.2% 3.2% 8.7% 19.7% 11.6% 0.9% 7.3%
November 56.2% 43.2% 3.2% 7.3% 13.2% 6.8% 0.7% 6.7%
December 63.7% 46.1% 3.5% 8.5% 19.1% 9.8% 0.7% 6.6%
2014
January 70.6% 45.7% 6.2% 9.4% 16.7% 19.0% 3.6% 7.0%
February 71.2% 41.2% 4.0% 8.6% 22.2% 12.2% 0.8% 6.0%
March 61.2% 38.5% 4.2% 6.8% 16.3% 13.7% 1.1% 5.5%
April 50.6% 39.2% 3.2% 6.8% 21.7% 9.5% 0.5% 4.7%
May 53.9% 43.8% 4.5% 9.4% 20.4% 10.6% 0.6% 9.3%
June 64.3% 50.1% 4.8% 11.0% 16.9% 15.0% 0.9% 7.0%
July 67.9% 56.6% 5.4% 14.6% 23.7% 16.2% 1.1% 8.7%
August 67.5% 60.6% 6.1% 16.1% 29.2% 15.3% 1.5% 8.3%
Sept 59.5% 55.1% 5.3% 12.2% 22.8% 13.7% 0.8% 8.0%

Values for 2012 and prior years are final. Values for 2013 and 2014 are preliminary.
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.'