oil or coal
Around 23% of the electricity generated in the US comes from burning coal.
As of 2013, the amount of the US's electricity that comes from coal is approximately 42% This makes up the mass majority of electricity service in the country. Natural gas is the second most popular source.
Electricity 32%Transport 28%Industry 20%Commercial and Residential 10%Agriculture 10%Most comes from burning coal, and then natural gas.
In 2006, about 20 percent from natural gas
Over half but not all of it
5%
About 6.1%.
The US had an abundance of coal and natural gas. It is estimated that 50% of the electricity generated in the US was from coal through burning fossil fuels.
As of 2011, about 42 percent of electricity in the US was derived from coal. There is a push in the 21st century to use other methods of electricity since coal is harmful to the environment.
85%
That depends a lot on what you mean by "this source".
George W. Bush