2004 US Energy Overview (quads)*
Production Import Export  Consumption 
Fossil Fuels 56.02 27.68 -1.25 85.65
Nuclear Electric Power 8.23 8.23
Renewable Energy 6.12 6.12
Adjustments   5.32 -2.38 -0.26
Total 70.37 33.00 -3.63 99.74
* above data obtained from the U.S. Department of Energy website:  
http://tonto.eia.doe.gov/FTPROOT/multifuel/038404.pdf page 43 of 435
Approximately 4 billion gallons of Ethanol were produced in 2004 = .304 quad
Energy derived from Ethanol, shown as a percentage of total Energy
    Consumption in quads  .304 quad-Ethanol
Fossil Fuels 85.65 0.355%
Nuclear Electric Power 8.23 3.694%
Renewable Energy 6.12 4.967%
Adjustments -0.26 n/a
99.74 0.305%
*quad = Quadrillion BTU's = 1E+15 BTU's = 1,000,000,000,000,000 BTU's
BTU = British Thermal Unit = Heat energy required to raise the temperature of one pound
of liquid water by 1 degree Fahrenheit
One gallon of Ethanol has energy value of approximately 76,000 BTU's