Primary energy from nuclear by country
Measured in terawatt-hours of total energy supply.
Countries reporting
36
Highest
2,503 terawatt-hours
United States
Lowest
0 terawatt-hours
Germany
Median
65.05 terawatt-hours
Years covered
61
1965–2025
Data points
10,754
What the numbers show
Primary energy from nuclear is currently reported for 36 countries. The highest value is 2,503 terawatt-hours in United States; the lowest is 0 terawatt-hours in Germany.
The median across all reporting countries is 65.05 terawatt-hours, and the mean is 251.37 terawatt-hours.
Over the past decade 15 countries rose and 16 fell. The largest increase was in Japan (up 1,979.0%), and the largest decrease in Germany (down 100.0%).
Primary energy from nuclear: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | United States | 2,503 terawatt-hours | 2025 | down 1.6% | volatile |
| 2 | China | 1,470 terawatt-hours | 2025 | up 183.1% | volatile |
| 3 | France | 1,182 terawatt-hours | 2025 | down 10.8% | volatile |
| 4 | Russia | 662.5 terawatt-hours | 2025 | up 11.8% | rising |
| 5 | South Korea | 559.67 terawatt-hours | 2025 | up 12.1% | volatile |
| 6 | USSR | 435.75 terawatt-hours | 1984 | up 570.1% | volatile |
| 7 | Japan | 285.05 terawatt-hours | 2025 | up 1,979.0% | volatile |
| 8 | Canada | 257.05 terawatt-hours | 2025 | down 16.1% | volatile |
| 9 | Spain | 164.3 terawatt-hours | 2025 | down 5.4% | volatile |
| 10 | Ukraine | 163.94 terawatt-hours | 2025 | down 38.3% | rising |
| 11 | India | 163.08 terawatt-hours | 2025 | up 40.5% | volatile |
| 12 | Sweden | 141.34 terawatt-hours | 2025 | down 17.2% | volatile |
| 13 | United Arab Emirates | 118.34 terawatt-hours | 2025 | — | volatile |
| 14 | United Kingdom | 108.64 terawatt-hours | 2025 | down 49.0% | rising |
| 15 | Finland | 99.4 terawatt-hours | 2025 | up 41.1% | volatile |
| 16 | Czechia | 97.17 terawatt-hours | 2025 | up 19.5% | volatile |
| 17 | Belgium | 71.89 terawatt-hours | 2025 | down 9.1% | volatile |
| 18 | Pakistan | 71.63 terawatt-hours | 2025 | up 449.1% | volatile |
| 19 | Slovakia | 58.47 terawatt-hours | 2025 | up 27.4% | volatile |
| 20 | Switzerland | 55.69 terawatt-hours | 2025 | down 21.0% | rising |
| 21 | Belarus | 51.52 terawatt-hours | 2025 | — | volatile |
| 22 | Hungary | 48.78 terawatt-hours | 2025 | up 1.7% | volatile |
| 23 | Brazil | 47.87 terawatt-hours | 2025 | up 7.2% | volatile |
| 24 | Bulgaria | 46.47 terawatt-hours | 2025 | down 0.3% | volatile |
| 25 | Romania | 33.37 terawatt-hours | 2025 | down 5.4% | volatile |
| 26 | Argentina | 32.61 terawatt-hours | 2025 | up 52.9% | volatile |
| 27 | South Africa | 32.52 terawatt-hours | 2025 | down 12.3% | volatile |
| 28 | Mexico | 30.62 terawatt-hours | 2025 | down 16.3% | volatile |
| 29 | Slovenia | 17.68 terawatt-hours | 2025 | up 3.3% | rising |
| 30 | Iran | 16.33 terawatt-hours | 2025 | up 54.2% | volatile |
| 31 | Netherlands | 12.17 terawatt-hours | 2025 | down 1.5% | rising |
| 32 | Taiwan | 9.81 terawatt-hours | 2025 | down 91.1% | volatile |
| 33 | Lithuania | 0 terawatt-hours | 2025 | — | volatile |
| 33 | Kazakhstan | 0 terawatt-hours | 2025 | — | volatile |
| 33 | Italy | 0 terawatt-hours | 2025 | — | volatile |
| 33 | Germany | 0 terawatt-hours | 2025 | down 100.0% | volatile |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
About this data
Measured in terawatt-hours of total energy supply.