Alternative Energy Nuclear Power

What percentage of our energy consumption comes from nuclear power or alternatives?
What percentage of our energy consumption comes from nuclear power or alternatives?
The U.S. Department of Energy has a variety of information related to energy usage in the U.S. and the world. If your question is specific to the U.S. or specific to electricity, the answers change significantly.
For example, approximately 20% of the electricity in the U.S. is produced by nuclear power, 49% by coal, 22% by natural gas, 6% by hydro and the remaining 3% by solar, wind, geothermal, oil, methane, biodiesel, etc. These numbers vary from year to year for a host of reasons.
Nuclear power for a serious competitor in the U.S. study finds high energy costs of building nuclear power plants can put the energy industry at a disadvantage to fossil fuels burn, producers, says a study by the MIT. But will the reprocessing of spent nuclear fuel, a controversial practice, not be necessary, he says.
