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Nuclear energy consumption in leading countries 2019

Global nuclear power consumption in 2019 was highest in the United States. At 7.6 exajoules, this was more than twice the consumption of both France and China.

Growing consumption

Whilst the United States is far away the biggest consumer of nuclear energy, its consumption fell 0.1 percent when compared to the previous year. In comparison, China experienced an increase in nuclear consumption of almost 18 percent in the same year. Global nuclear energy consumption increased by 3.2 percent in 2019 to approximately 24.92 exajoules and has been increasing annually since 2012.

Increased number of reactors

With 95 operable nuclear reactors, it is no surprise that the United States is the leading nation in the consumption of nuclear energy. France and China followed with 57 and 47 operable reactors respectively. As of May 2020, there were 11 nuclear reactors under construction in China.

Nuclear energy consumption in select countries worldwide in 2019 (in exajoules)*

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Release date

June 2020



Survey time period


Supplementary notes

*Based on gross generation and not accounting for cross-border electricity supply. ’Input-equivalent’ energy is the amount of fuel that would be required by thermal power stations to generate the reported electricity output.

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