Production

COLORADO ELECTRIC POWER INDUSTRY GENERATION BY PRIMARY ENERGY SOURCE 2001-2009 (In Millions of Megawatt Hours)
Year Coal % Natural Gas % Hydroelectric % Wind Percent Solar % Biomass % Petroleum % Otherb % Total
2001 36.0 76.3 9.4 19.9 1.5 3.2 0.0 0.1 0 0 0.064 0.14 0.176 0.37 0 0 47.2
2002 35.4 77.3 9.0 19.7 1.2 2.6 0.1 0.3 0 0 0.030 0.07 0.023 0.05 0.003 0.01 45.8
2003 36.1 77.1 9.2 19.7 1.3 2.8 0.1 0.3 0 0 0.031 0.07 0.034 0.07 0.004 0.01 46.8
2004 35.8 74.6 10.7 22.3 1.2 2.5 0.2 0.5 0 0 0.035 0.07 0.014 0.03 0.002 0.00 48.0
2005 35.6 71.6 11.9 23.9 1.4 2.8 0.8 1.6 0 0 0.034 0.07 0.017 0.03 0.002 0.00 49.7
2006 36.3 71.3 11.9 23.4 1.8 3.5 0.9 1.7 0 0 0.031 0.06 0.021 0.04 0.003 0.00 50.9
2007 35.9 66.5 15.0 27.8 1.7 3.1 1.3 2.4 0.002 0.00 0.031 0.06 0.028 0.05 0.043 0.08 54.0
2008 34.8 64.9 13.5 25.2 2.0 3.7 3.2 6.0 0.018 0.03 0.045 0.08 0.019 0.04 0.033 0.06 53.6
2009a 31.6 62.6 13.8 27.3 2.1 4.2 2.9 5.7 0.017 0.03 0.051 0.10 0.020 0.04 0.030 0.06 50.5
aPreliminary
b“Other” includes blast furnace gas, propane gas, other manufactured and waste gases derived from fossil fuels, non-biogenic municipal solid waste, batteries, chemicals, hydrogen, pitch, purchased steam, sulfur, tire-derived fuels, and miscellaneous technologies.