World rankings / DATA EXPLORER

THE GLOBAL INDEX #100

Nuclear electricity generation2021

Annual nuclear electricity generation in terawatt-hours.

Our World in Data · Energy
Comparable ranking year2024Latest published year: 2025
Economies with data200 / 217No observation: 17
First-ranked country or territoryUnited States779.65 TWh

Top 10

TWh · 2021
02China
407.5
03France
379.36
04Russia
222.39
05South Korea
158.01
06Canada
91.98
07Ukraine
86.21
08Germany
69.13
09Japan
61.22
10Spain
56.56

Complete ranking

Download CSV ↓
Nuclear electricity generation · 2021 · TWh
RankCountry / territoryValue (TWh)Year
01United States779.652021
02China407.52021
03France379.362021
04Russia222.392021
05South Korea158.012021
06Canada91.982021
07Ukraine86.212021
08Germany69.132021
09Japan61.222021
10Spain56.562021
11Sweden52.972021
12Belgium50.332021
13United Kingdom46.12021
14India43.922021
15Czechia30.732021
16Finland23.62021
17Switzerland19.362021
18Bulgaria16.492021
19Hungary15.992021
20Pakistan15.742021
21Slovakia15.732021
22Brazil14.72021
23South Africa12.352021
24Mexico11.922021
25Romania11.282021
26United Arab Emirates10.552021
27Argentina10.172021
28Belarus5.782021
29Slovenia5.712021
30Netherlands3.832021
31Iran3.542021
32Armenia1.852021
33Aruba02021
33Afghanistan02021
33Angola02021
33Albania02021
33American Samoa02021
33Antigua & Barbuda02021
33Australia02021
33Austria02021
33Azerbaijan02021
33Burundi02021
33Benin02021
33Burkina Faso02021
33Bangladesh02021
33Bahrain02021
33Bahamas02021
33Bosnia & Herzegovina02021
33Belize02021
33Bermuda02021
33Bolivia02021
33Barbados02021
33Brunei02021
33Bhutan02021
33Botswana02021
33Central African Republic02021
33Chile02021
33Côte d’Ivoire02021
33Cameroon02021
33Congo - Kinshasa02021
33Congo - Brazzaville02021
33Colombia02021
33Comoros02021
33Cape Verde02021
33Costa Rica02021
33Cuba02021
33Cayman Islands02021
33Cyprus02021
33Djibouti02021
33Dominica02021
33Denmark02021
33Dominican Republic02021
33Algeria02021
33Ecuador02021
33Egypt02021
33Eritrea02021
33Estonia02021
33Ethiopia02021
33Fiji02021
33Faroe Islands02021
33Gabon02021
33Georgia02021
33Ghana02021
33Gibraltar02021
33Guinea02021
33Gambia02021
33Guinea-Bissau02021
33Equatorial Guinea02021
33Greece02021
33Grenada02021
33Greenland02021
33Guatemala02021
33Guam02021
33Guyana02021
33Hong Kong SAR China02021
33Honduras02021
33Croatia02021
33Haiti02021
33Indonesia02021
33Ireland02021
33Iraq02021
33Iceland02021
33Israel02021
33Italy02021
33Jamaica02021
33Jordan02021
33Kazakhstan02021
33Kenya02021
33Kyrgyzstan02021
33Kiribati02021
33St. Kitts & Nevis02021
33Kuwait02021
33Laos02021
33Lebanon02021
33Liberia02021
33Libya02021
33St. Lucia02021
33Sri Lanka02021
33Lesotho02021
33Lithuania02021
33Luxembourg02021
33Latvia02021
33Macao SAR China02021
33Morocco02021
33Moldova02021
33Madagascar02021
33Maldives02021
33North Macedonia02021
33Mali02021
33Malta02021
33Myanmar (Burma)02021
33Montenegro02021
33Mongolia02021
33Mozambique02021
33Mauritania02021
33Mauritius02021
33Malawi02021
33Malaysia02021
33Namibia02021
33New Caledonia02021
33Niger02021
33Nigeria02021
33Nicaragua02021
33Norway02021
33Nepal02021
33Nauru02021
33New Zealand02021
33Oman02021
33Panama02021
33Peru02021
33Philippines02021
33Papua New Guinea02021
33Poland02021
33Puerto Rico02021
33North Korea02021
33Portugal02021
33Paraguay02021
33Palestinian Territories02021
33French Polynesia02021
33Qatar02021
33Rwanda02021
33Saudi Arabia02021
33Sudan02021
33Senegal02021
33Singapore02021
33Solomon Islands02021
33Sierra Leone02021
33Somalia02021
33Serbia02021
33South Sudan02021
33São Tomé & Príncipe02021
33Suriname02021
33Eswatini02021
33Seychelles02021
33Syria02021
33Turks & Caicos Islands02021
33Chad02021
33Togo02021
33Thailand02021
33Tajikistan02021
33Turkmenistan02021
33Timor-Leste02021
33Tonga02021
33Trinidad & Tobago02021
33Tunisia02021
33Türkiye02021
33Tanzania02021
33Uganda02021
33Uruguay02021
33Uzbekistan02021
33St. Vincent & Grenadines02021
33Venezuela02021
33British Virgin Islands02021
33U.S. Virgin Islands02021
33Vietnam02021
33Vanuatu02021
33Samoa02021
33Yemen02021
33Zambia02021
33Zimbabwe02021

How this ranking works

For annual statistics, the default is the newest year covering at least 70% of the maximum available country coverage, and at least 20 economies where possible. A ranking uses one year or report edition; missing observations are not replaced with another year. Newer years with lower coverage can be selected.

Intentional homicide rates and peace scores rank from lowest to highest; other indicators rank from highest to lowest. Ranks use original values and competition ranking for ties, for example 1, 2, 2, 4. Filtering or changing display order does not recalculate global ranks. Higher values are not necessarily better.

Statistics reflect the public source snapshot, not live measurements. Some series are modeled estimates or multi-year averages. See original metadata.

No observation (17)

Andorra · Cambodia · Channel Islands · Curaçao · El Salvador · Isle of Man · Kosovo · Liechtenstein · Marshall Islands · Micronesia · Monaco · Northern Mariana Islands · Palau · San Marino · Sint Maarten · St. Martin · Tuvalu

Source & definition

Indicator definition
Annual nuclear electricity generation in terawatt-hours.
Unit
TWh
Source & definition
Our World in Data · Energy · owid:nuclear_electricity
Open original source ↗
Original metadata
Measured in terawatt-hours.

{
  "column": "nuclear_electricity",
  "title": "Electricity generation from nuclear",
  "description": "Measured in terawatt-hours.",
  "unit": "terawatt-hours (TWh)",
  "source": "Ember - Yearly Electricity Data Europe (2026) [https://ember-energy.org/data/yearly-electricity-data/]; Ember - Yearly Electricity Data (2026) [https://ember-energy.org/data/yearly-electricity-data/]; Energy Institute - Statistical Review of World Energy (2025) [https://www.energyinst.org/statistical-review/]"
}