oil or coal
Around 23% of the electricity generated in the US comes from burning coal.
Electricity 32%Transport 28%Industry 20%Commercial and Residential 10%Agriculture 10%Most comes from burning coal, and then natural gas.
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.
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