Nuclear power

Nuclear Power is the use of nuclear reactions that release nuclear energy to generate heat, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium.

History

The discovery of nuclear fission in 1938 led to the development of nuclear power. The first nuclear reactor to produce electricity was the Experimental Breeder Reactor I in 1951. The first commercial nuclear power stations started operation in the 1950s.

Nuclear Fission

Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with a few neutrons and a large amount of energy. The energy released in nuclear fission can be used to produce electricity.

Nuclear Fusion

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles. The difference in mass between the reactants and products is manifested as energy. Nuclear fusion reactions power the Sun and other stars.

Nuclear Power Plants

A nuclear power plant is a thermal power station in which the heat source is a nuclear reactor. The heat is used to generate steam, which drives a steam turbine connected to an electric generator.

Safety and Accidents

Safety is a key concern in the design, construction and operation of nuclear power plants. Accidents can release harmful radiation. Notable nuclear accidents include the Three Mile Island accident, the Chernobyl disaster, and the Fukushima Daiichi nuclear disaster.

Future of Nuclear Power

The future of nuclear power is subject to significant debate. Some believe that nuclear power is a necessary part of the solution to climate change. Others believe that the risks of nuclear power, including accidents and the difficulty of waste disposal, make it an unacceptable solution.

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  Center of Pripyat with Chernobyl reactor 4

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