|Transportation consumption||Energy consumption (all sectors)||Transportation as percent of total energy consumption|
|Primary consumption||Electricity||Electrical system energy losses||Transportation consumption Total|
|Natural gas||Petroleum products||Total|
KEY: Btu = British thermal unit.
NOTES: Total transportation consumption is the sum of Primary consumption, Electricity, and Electrical system energy losses categories. Total primary consumption is the sum of Natural gas, Petroleum products, and biomass categories. Biomass is not reported separately in this table. Natural gas is consumed in the operation of pipelines, primarily in compressors, and small amounts consumed as vehicle fuel.
Petroleum products includes most nonutility use of fossil fuels to produce electricity and small amounts (about 0.1 quadrillion Btu per year since 1990) of renewable energy in the form of ethanol blended into motor gasoline.
Electrical system energy losses are incurred in the generation, transmission, and distribution of electricity plus plant use and unaccounted for electrical system energy losses.
SOURCE: U.S. Department of Energy, Energy Information Administration, Monthly Energy Review, tables 2.1 and 2.5, available at http://www.eia.doe.gov as of November 2010 as reported in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 4-4, available at http://www.bts.gov/publications/national_transportation_statistics/ as of January 2011.