In mid-2008, the Department of Energy (DOE) invited applications for loan guarantees to support the construction of advanced nuclear power plants (up to $18.5 billion total) and uranium enrichment plants (up to $2 billion initially, but then $4 billion).
http://www.world-nuclear.org/information-library/country-profiles/countries-t-z/usa-nuclear-power-policy.aspx
General U.S. Nuclear Info. U.S. electricity from nuclear energy in 2016: 19.7 percent, with 805.3 billion kilowatt-hours generated. Number of states with operating reactors: 30. Nuclear plants made up the largest percentage of the electricity generated in 2016 in six states. Nuclear industry capacity factor (2016): 92.1 percent.
http://www.nei.org/Knowledge-Center/Nuclear-Statistics/US-Nuclear-Power-Plants
Q. How much of our electricity supply can be provided by wind power? A. The U.S. Department of Energy estimates that 20% of the electricity in the United States could be provided from wind energy with the existing transmission infrastructure. That’s more than nuclear energy and about the equivalent of natural gas.
http://windenergyfoundation.org/about-wind-energy/faqs/
Nuclear energy currently provides 20% of total electricity generation in the United States. According to the U.S. Energy Information Administration’s 2015 estimates, output from nuclear power plants is expected to remain flat through 2040.
http://needtoknow.nas.edu/energy/energy-sources/nuclear/
A. The Global Wind Energy Council (GWEC) reported that the wind industry installed 35,289 megawatts (MW) of new clean, reliable wind power in 2013, bringing total installed global wind capacity to more than 318,000 MW. A. About 4% of the electricity generated in the United States is produced from wind energy. In 2013, Iowa and South Dakota produced more than 25% of their generation from wind energy.
http://windenergyfoundation.org/about-wind-energy/faqs/
And nuclear plants occupy a fraction of the land required for wind or solar. For example, 20 percent of U.S. electricity comes from 104 nuclear reactors on about 100 square miles.
https://www.usnews.com/opinion/articles/2010/07/19/lamar-alexander-nuclear-energy-is-cheap-and-reliable
In 2015, U.S. commercial nuclear power reactors bought 56.5 million pounds of uranium from both domestic and foreign suppliers; domestic production accounted for only 3% of that total. According to the International Atomic Energy Agency, worldwide identified resources totaled about 7.6 million metric tons in 2014.
http://needtoknow.nas.edu/energy/energy-sources/nuclear/
And nuclear power provides just that. The National Academy of Sciences in a 2009 report said that the cost of nuclear power is equal to or lower than natural gas, wind, solar, or coal with carbon capture. Reactors can operate for 80 years, while wind and solar last about 25 years.
https://www.usnews.com/opinion/articles/2010/07/19/lamar-alexander-nuclear-energy-is-cheap-and-reliable
The first nuclear reactor to produce electricity did so at the National Reactor Testing Station (NRTS) in Idaho in December 1951, as the US government reoriented significant resources to the development of civilian use of nuclear power.
http://www.world-nuclear.org/information-library/country-profiles/countries-t-z/usa-nuclear-power-policy.aspx
Americans can’t afford to ignore nuclear power. By Lamar Alexander, Contributor | July 19, 2010, at 11:17 a.m. Lamar Alexander: Nuclear Energy Is Cheap and Reliable. Lamar Alexander is a GOP senator from Tennessee and chairman of the Senate Republican Conference.
https://www.usnews.com/opinion/articles/2010/07/19/lamar-alexander-nuclear-energy-is-cheap-and-reliable
how much of u.s. electricity comes from nuclear power
805.3 billion kilowatt-hours of United States electricity comes from nuclear power.