Share of electricity generation from nuclear in Czechia
Czechia: Share of electricity generation from nuclear was 42.3% in 2025. ▲ Rising
Share of electricity generation from nuclear in Czechia, 1985–2025
Source: Ember (2026) and other sources – with major processing by Our World in Data. Measured in %.
Analysis
The most recent figure for share of electricity generation from nuclear in Czechia is 42.3%, measured in 2025. That is the highest value across all 41 years on record.
The figure is up 3.7% on the previous year and up 30.0% over ten years.
Over the whole period, share of electricity generation from nuclear in Czechia peaked at 42.3% in 2025 and was at its lowest, 4.1%, in 1985.
Czechia ranks 4th of 207 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 41 years of available data.
Share of electricity generation from nuclear in Czechia, year by year
| Year | % | Change |
|---|---|---|
| 1985 | 4.1% | — |
| 1986 | 10.1% | +146.0% |
| 1987 | 17.2% | +69.6% |
| 1988 | 18.4% | +6.7% |
| 1989 | 19.1% | +3.8% |
| 1990 | 20.2% | +6.0% |
| 1991 | 20.1% | -0.5% |
| 1992 | 20.7% | +3.1% |
| 1993 | 21.5% | +3.8% |
| 1994 | 22.2% | +3.2% |
| 1995 | 20.2% | -9.2% |
| 1996 | 20.1% | -0.3% |
| 1997 | 19.5% | -3.4% |
| 1998 | 20.4% | +4.9% |
| 1999 | 20.8% | +2.1% |
| 2000 | 18.6% | -10.5% |
| 2001 | 19.9% | +6.6% |
| 2002 | 24.7% | +24.1% |
| 2003 | 31.2% | +26.7% |
| 2004 | 31.4% | +0.6% |
| 2005 | 30.2% | -3.9% |
| 2006 | 31.1% | +3.2% |
| 2007 | 29.8% | -4.2% |
| 2008 | 31.9% | +6.9% |
| 2009 | 33.3% | +4.5% |
| 2010 | 32.9% | -1.4% |
| 2011 | 32.6% | -0.7% |
| 2012 | 35.0% | +7.3% |
| 2013 | 35.8% | +2.2% |
| 2014 | 35.7% | -0.3% |
| 2015 | 32.5% | -8.8% |
| 2016 | 29.4% | -9.7% |
| 2017 | 33.0% | +12.4% |
| 2018 | 34.5% | +4.3% |
| 2019 | 35.3% | +2.4% |
| 2020 | 37.5% | +6.3% |
| 2021 | 36.7% | -2.1% |
| 2022 | 37.0% | +0.9% |
| 2023 | 40.1% | +8.3% |
| 2024 | 40.8% | +1.7% |
| 2025 | 42.3% | +3.7% |
Biggest year-on-year movements
Years where Share of electricity generation from nuclear in Czechia changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1986 | +146.0% | 4.1% | 10.1% |
| 1987 | +69.6% | 10.1% | 17.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 13.8% | 4.1% | 19.1% | 5 |
| 1990s | 20.6% | 19.5% | 22.2% | 10 |
| 2000s | 28.2% | 18.6% | 33.3% | 10 |
| 2010s | 33.7% | 29.4% | 35.8% | 10 |
| 2020s | 39.1% | 36.7% | 42.3% | 6 |
Countries ranked near Czechia
More energy & mining data for Czechia
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate 2.85 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2025)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 5.5% (2024)
Frequently asked questions
- What is share of electricity generation from nuclear in Czechia?
- Share of electricity generation from nuclear in Czechia was 42.3% in 2025, according to Ember (2026) and other sources – with major processing by Our World in Data.
- What is the highest share of electricity generation from nuclear recorded in Czechia?
- The highest recorded value was 42.3% in 2025.
- What is the lowest share of electricity generation from nuclear recorded in Czechia?
- The lowest recorded value was 4.1% in 1985.
- How does Czechia rank for share of electricity generation from nuclear?
- Czechia ranks 4th out of 207 countries with data for 2025.
- Is share of electricity generation from nuclear rising or falling in Czechia?
- Over the last ten years it is up 30.0%. The long-run trend across the full record is rising.
- Where does this Czechia data come from?
- The figures come from Ember (2026) and other sources – with major processing by Our World in Data, published as part of Share of electricity generation from nuclear. Statizoid updates them automatically from the source API.
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About this data
Measured as a percentage of total electricity produced in the country or region.