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By 2005, nuclear energy provided 2.1% of the world's energy demand and accounted for about 15% of world electricity production, while only the United States, France, and Japan alone. Nuclear accounts for 56.5% of the total electricity needs of these three countries. By 2007, according to a report by the International Atomic Energy Agency (IAEA), there are 439 nuclear reactors operating in the world, belonging to 31 countries.

In 2007, world nuclear power production fell to 14%. According to the IAEA, the main cause of this decline was due to an earthquake that occurred on July 16, 2007 in western Japan, which caused the country to stop all seven reactors of the Kashiwazaki nuclear power plant. -Kariwa. Several other causes such as "abnormal shutdown" due to lack of fuel have occurred in Korea and Germany. In addition, the increase in the load factor of the reactors to meet demand is only for a short time (peak).

The United States produces the most nuclear energy providing 19% of the electricity consumed, while France's share of nuclear power is the highest in its electricity output at 78% in 2006. In the entire Union In Europe, nuclear energy provides 30% of electricity needs. There are differences in the nuclear energy policy between the countries of the European Union, and a few other countries, such as Australia, Estonia, and Ireland, do not have active nuclear power stations. When compared to other countries, France has many nuclear power plants, a total of 16 complexes in use.

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