6.2 : Electricity Generation, Transmission, and Distribution




6.2.3 Electric Capacity Factors, by Year and Fuel Type (1)
Conventional
Coal Petroleum Natural Gas Nuclear Hydroelectric Solar/PV Wind Total
1990 59% 17% 23% 66% 45% 13% 18% 46%
1991 59% 18% 22% 70% 43% 17% 18% 46%
1992 59% 14% 22% 71% 38% 13% 18% 45%
1993 61% 16% 21% 70% 41% 16% 19% 46%
1994 61% 15% 22% 74% 38% 17% 23% 46%
1995 62% 11% 22% 77% 45% 17% 21% 47%
1996 65% 11% 19% 76% 52% 18% 22% 48%
1997 66% 13% 20% 72% 51% 17% 23% 48%
1998 67% 20% 23% 79% 47% 17% 20% 50%
1999 67% 20% 22% 85% 46% 15% 23% 51%
2000 70% 18% 22% 88% 40% 15% 27% 51%
2001 68% 20% 21% 89% 31% 16% 20% 48%
2002 69% 16% 18% 90% 38% 16% 27% 46%
2003 71% 21% 14% 88% 40% 15% 21% 44%
2004 71% 22% 16% 90% 39% 17% 25% 44%
2005 72% 22% 17% 89% 40% 15% 23% 45%
2006 71% 11% 19% 90% 42% 14% 27% 45%
2007 72% 12% 21% 92% 36% 14% 24% 45%
2008 71% 8% 20% 91% 37% 18% 26% 44%
2009 63% 7% 21% 90% 40% 16% 25% 42%
2010 (2) 65% 6% 23% 91% 37% 17% 29% 43%
Note(s): 1) EIA defines capacity factor to be "the ratio of the electrical energy produced by a generating unit for the period of time considered to the electrical energy that could have been produced at continuous full power operation during the same period. 2) Preliminary.









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