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Primary Energy Consumption by Major Source (1949 to 2007)
U.S. energy supply is dominated by fossil fuels. Petroleum, the top source of energy shown above, is primarily used for transportation (70 percent of oil use). Natural gas is used in roughly equal parts to generate electricity, power industrial processes, and heat water and buildings. Coal is primarily used to generate electricity (91 percent of coal use). Nuclear power is used entirely for electricity generation. Image Reference: EIA1
References
- 1. [203] Administration, Energy Information U. S.. Annual Energy Review 2007. Washington, D.C.: U.S. Department of Energy, 2008.
Summary
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