Nuclear energy provides efficient and reliable electricity around the world. Today, more than 400 commercial reactors operate in more than 30 countries.
The common definition for nuclear energy is the energy released by a chain reaction, especially by fission or fusion. Practically speaking, nuclear energy uses fuel made from mined and processed uranium to make steam and generate electricity.
Nuclear generation is the only source of electricity that can produce a constant supply of power – known as baseload power—reliably without emitting greenhouse gases.
Nuclear energy has one of the lowest environmental impacts on land and natural resources of any electricity source.