Nuclear power around the world

In 2025, nuclear power made 8.9% of the world's electricity, 2,810 TWh, down from 9.9% in 2020. That was 6.0% more electricity than in 2020. In 2000 its share was 17%.

Nuclear power stations use the heat from splitting uranium atoms to make steam that drives turbines. They run steadily day and night and give off almost no carbon dioxide while they run.

The countries that made the most electricity from nuclear power were the United States (786 TWh), China (488 TWh) and France (392 TWh). France relied on it most: 69% of its electricity. In 3 countries generating at least 1 TWh a year, it made more than half of all electricity.

Over the five years to each country's latest figures, the share of electricity from nuclear power rose most in Belarus (from 1% to 37%), the United Arab Emirates (from under 1% to 23%) and Slovakia (from 54% to 66%).

See the same figures for any region, with a chart you can read year by year, on the dashboard's World tab.

The world's share over time

By region in 2025

Biggest rises in five years

Each country's share of electricity from nuclear power five years before its latest figures, in its latest full year (2025 unless shown), and the rise in percentage points: from 3% to 21% is a rise of 18 points.

Other energy sources

• Solar power
• Wind power
• Hydropower
• Gas power
• Coal power
• Oil and other fossil fuels
• Bioenergy
• Geothermal and other renewables

Every energy source compared · Every country

Source: Ember yearly electricity data (CC BY 4.0), figures up to 2025; Ember's latest-year figures are first estimates and may be revised. Countries are compared on their latest full year. Amounts for countries are worked out from each country's total and its share, rounded to three significant figures; changes over five years use whole percentages. TWh: terawatt hours (one billion kWh).