Graph illustrating average nuclear reactor capacity factor by percent between 1989 and 2001. Graph starts at just under 90% in 1989 and drops to just over 50% that same year. From 1990 to 2001, the graph tends upward gradually starting at just over 50% and ending at approximately 90%.
Note: The average annual reactor capacity factor has increased from 62 percent in 1987 to 90 percent in 2001. Source: DOE/EIA Monthly Energy Review.