Nuclear energy
This field describes nuclear energy used for production of electricity. The information covers all countries with operational nuclear reactors that are used to produce electricity; the information does not include research reactors. Subfields include the current number of operational nuclear reactors, the number of nuclear reactors under construction, the net capacity of operational nuclear reactors expressed in gigawatts (GW), the percent of total electricity production from nuclear energy, the percent of total energy produced from nuclear energy, and the number of nuclear reactors permanently shut down. Watts are a measure of power, describing the rate at which electricity is being used at a specific moment. A gigawatt is 1 billion watts.
Argentina
Number of operational nuclear reactors: 3 (2023)Number of nuclear reactors under construction: 1 (2023)
Net capacity of operational nuclear reactors: 1.64GW (2023 est.)
Percent of total electricity production: 6.3% (2023 est.)
Armenia
Number of operational nuclear reactors: 1 (2023)Net capacity of operational nuclear reactors: 0.42GW (2023 est.)
Percent of total electricity production: 31.1% (2023 est.)
Number of nuclear reactors permanently shut down: 1 (2023)
Bangladesh
Number of nuclear reactors under construction: 2 (2023)Belarus
Number of operational nuclear reactors: 2 (2023)Net capacity of operational nuclear reactors: 2.22GW (2023 est.)
Percent of total electricity production: 28.6% (2023 est.)
Belgium
Number of operational nuclear reactors: 5 (2023)Net capacity of operational nuclear reactors: 3.91GW (2023 est.)
Percent of total electricity production: 41.2% (2023 est.)
Number of nuclear reactors permanently shut down: 3 (2023)
Brazil
Number of operational nuclear reactors: 2 (2023)Number of nuclear reactors under construction: 1 (2023)
Net capacity of operational nuclear reactors: 1.88GW (2023 est.)
Percent of total electricity production: 2.2% (2023 est.)
Bulgaria
Number of operational nuclear reactors: 2 (2023)Net capacity of operational nuclear reactors: 2.01GW (2023 est.)
Percent of total electricity production: 40.3% (2023 est.)
Number of nuclear reactors permanently shut down: 4 (2023)
Canada
Number of operational nuclear reactors: 19 (2023)Net capacity of operational nuclear reactors: 13.7GW (2023 est.)
Percent of total electricity production: 13.7% (2023 est.)
Number of nuclear reactors permanently shut down: 6 (2023)
China
Number of operational nuclear reactors: 56 (2023)Number of nuclear reactors under construction: 25 (2023)
Net capacity of operational nuclear reactors: 54.15GW (2023 est.)
Percent of total electricity production: 4.9% (2023 est.)
Czechia
Number of operational nuclear reactors: 6 (2023)Net capacity of operational nuclear reactors: 3.93GW (2023 est.)
Percent of total electricity production: 40% (2023 est.)
Egypt
Number of nuclear reactors under construction: 4 (2023)Finland
Number of operational nuclear reactors: 5 (2023)Net capacity of operational nuclear reactors: 4.93GW (2023 est.)
Percent of total electricity production: 42% (2023 est.)
France
Number of operational nuclear reactors: 56 (2023)Number of nuclear reactors under construction: 1 (2023)
Net capacity of operational nuclear reactors: 61.37GW (2023 est.)
Percent of total electricity production: 64.8% (2023 est.)
Number of nuclear reactors permanently shut down: 14 (2023)
Germany
Percent of total electricity production: 1.4% (2023 est.)Number of nuclear reactors permanently shut down: 33 (2023)
Hungary
Number of operational nuclear reactors: 4 (2023)Net capacity of operational nuclear reactors: 1.92GW (2023 est.)
Percent of total electricity production: 48.8% (2023 est.)
India
Number of operational nuclear reactors: 20 (2023)Number of nuclear reactors under construction: 7 (2023)
Net capacity of operational nuclear reactors: 6.92GW (2023 est.)
Percent of total electricity production: 3.1% (2023 est.)
Iran
Number of operational nuclear reactors: 1 (2023)Number of nuclear reactors under construction: 1 (2023)
Net capacity of operational nuclear reactors: 0.92GW (2023 est.)
Percent of total electricity production: 1.7% (2023 est.)
Italy
Number of nuclear reactors permanently shut down: 4 (2023)Japan
Number of operational nuclear reactors: 12 (2023)Number of nuclear reactors under construction: 2 (2023)
Net capacity of operational nuclear reactors: 11.05GW (2023 est.)
Percent of total electricity production: 5.5% (2023 est.)
Number of nuclear reactors permanently shut down: 27 (2023)
Kazakhstan
Number of nuclear reactors permanently shut down: 1 (2023)Korea, South
Number of operational nuclear reactors: 26 (2023)Number of nuclear reactors under construction: 2 (2023)
Net capacity of operational nuclear reactors: 25.83GW (2023 est.)
Percent of total electricity production: 31.5% (2023 est.)
Number of nuclear reactors permanently shut down: 2 (2023)
Lithuania
Number of nuclear reactors permanently shut down: 2 (2023)Mexico
Number of operational nuclear reactors: 2 (2023)Net capacity of operational nuclear reactors: 1.55GW (2023 est.)
Percent of total electricity production: 4.9% (2023 est.)
Netherlands
Number of operational nuclear reactors: 1 (2023)Net capacity of operational nuclear reactors: 0.48GW (2023 est.)
Percent of total electricity production: 3.4% (2023 est.)
Number of nuclear reactors permanently shut down: 1 (2023)
Pakistan
Number of operational nuclear reactors: 6 (2023)Net capacity of operational nuclear reactors: 3.26GW (2023 est.)
Percent of total electricity production: 17.4% (2023 est.)
Number of nuclear reactors permanently shut down: 1 (2023)
Romania
Number of operational nuclear reactors: 2 (2023)Net capacity of operational nuclear reactors: 1.3GW (2023 est.)
Percent of total electricity production: 18.9% (2023 est.)
Russia
Number of operational nuclear reactors: 36 (2023)Number of nuclear reactors under construction: 4 (2023)
Net capacity of operational nuclear reactors: 26.8GW (2023 est.)
Percent of total electricity production: 18.4% (2023 est.)
Number of nuclear reactors permanently shut down: 11 (2023)
Slovakia
Number of operational nuclear reactors: 5 (2023)Number of nuclear reactors under construction: 1 (2023)
Net capacity of operational nuclear reactors: 2.31GW (2023 est.)
Percent of total electricity production: 61.3% (2023 est.)
Number of nuclear reactors permanently shut down: 3 (2023)
Slovenia
Number of operational nuclear reactors: 1 (2023)Net capacity of operational nuclear reactors: 0.69GW (2023 est.)
Percent of total electricity production: 36.8% (2023 est.)
South Africa
Number of operational nuclear reactors: 2 (2023)Net capacity of operational nuclear reactors: 1.85GW (2023 est.)
Percent of total electricity production: 4.4% (2023 est.)
Spain
Number of operational nuclear reactors: 7 (2023)Net capacity of operational nuclear reactors: 7.12GW (2023 est.)
Percent of total electricity production: 20.3% (2023 est.)
Number of nuclear reactors permanently shut down: 3 (2023)
Sweden
Number of operational nuclear reactors: 6 (2023)Net capacity of operational nuclear reactors: 6.94GW (2023 est.)
Percent of total electricity production: 28.6% (2023 est.)
Number of nuclear reactors permanently shut down: 7 (2023)
Switzerland
Number of operational nuclear reactors: 4 (2023)Net capacity of operational nuclear reactors: 2.97GW (2023 est.)
Percent of total electricity production: 32.4% (2023 est.)
Number of nuclear reactors permanently shut down: 2 (2023)
Taiwan
Number of operational nuclear reactors: 2 (2023)Number of nuclear reactors under construction: 0
Net capacity of operational nuclear reactors: 1.87GW (2023)
Percent of total electricity production: 11% (2021)
Number of nuclear reactors permanently shut down: 2
Turkey (Turkiye)
Number of nuclear reactors under construction: 4 (2023)Ukraine
Number of operational nuclear reactors: 15 (2023)Number of nuclear reactors under construction: 2 (2023)
Net capacity of operational nuclear reactors: 13.11GW (2023 est.)
Percent of total electricity production: 55% (2023 est.)
Number of nuclear reactors permanently shut down: 4 (2023)
United Arab Emirates
Number of operational nuclear reactors: 4 (2023)Net capacity of operational nuclear reactors: 5.32GW (2023 est.)
Percent of total electricity production: 19.7% (2023 est.)
United Kingdom
Number of operational nuclear reactors: 9 (2023)Number of nuclear reactors under construction: 2 (2023)
Net capacity of operational nuclear reactors: 5.88GW (2023 est.)
Percent of total electricity production: 12.5% (2023 est.)
Number of nuclear reactors permanently shut down: 36 (2023)
United States
Number of operational nuclear reactors: 94 (2023)Net capacity of operational nuclear reactors: 96.95GW (2023 est.)
Percent of total electricity production: 18.5% (2023 est.)
Number of nuclear reactors permanently shut down: 41 (2023)
World
Number of operational nuclear reactors: 416 (2023)Number of nuclear reactors under construction: 59
Net capacity of operational nuclear reactors: 374.67GW (2023)