Nuclear Share of Electricity by Country 2024
Key Findings
About This Dataset
Nuclear Share of Electricity by Country 2024France leads with 67.7% of its electricity from nuclear power, the only large economy to have built its grid around the technology, followed by Slovakia on 61.8%. No other country exceeds 43%. The list is overwhelmingly European and strikingly post-communist: Slovakia, Hungary, Bulgaria, Czechia, Slovenia and Belarus all sit between 34% and 43%, reflecting reactor fleets built during the Soviet era and kept running ever since. Belgium's 41.1% is notable given its repeated political commitments to phase nuclear out. Notably absent are the countries with the most reactors in absolute terms, the United States and China, because their grids are so vast that nuclear supplies only a modest fraction of a much larger total.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- Our World in Data (Ember / Energy Institute)
- Coverage
- 10 entities · 2024 · 10 observations
- Measure
- Nuclear Share of Electricity Generation (%)
- Last updated
- 15 July 2026
- Compiled by
- The ANYSTAT team, from the source above
- Values use the measure and unit named on this page. Consult the dataset description and cited source for coverage, definitions and any unit conversions. Displayed values may be rounded for readability.
- Entities are ranked highest-first on their value in 2024.
Data Sources & References
All external sources cited in this dataset
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