Share of electricity generation from nuclear in South Korea
South Korea: Share of electricity generation from nuclear was 29.6% in 2025. ▼ Falling
Share of electricity generation from nuclear in South Korea, 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 South Korea is 29.6%, measured in 2025.
The figure is down 2.0% on the previous year and down 1.7% over ten years.
Over the whole period, share of electricity generation from nuclear in South Korea peaked at 49.0% in 1987 and was at its lowest, 22.5%, in 2018.
That places South Korea 12th out of 207 countries with data for 2025, putting it in the top 10%.
The long-run direction has been consistently falling across the 41 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 41.0% | 26.7% | 49.0% | 5 |
| 1990s | 36.8% | 31.3% | 44.6% | 10 |
| 2000s | 35.7% | 32.7% | 37.7% | 10 |
| 2010s | 27.5% | 22.5% | 30.1% | 10 |
| 2020s | 28.5% | 26.0% | 30.2% | 6 |
Countries ranked near South Korea
More energy & mining data for South Korea
- Fuel imports 25.7% (2024)
- Ores and metals imports 6.7% (2024)
- Ores and metals exports 2.4% (2024)
- Gas production 0 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 0 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 0 terawatt-hours (2024)
- Gas production per person 0 kilowatt-hours per person (2024)
- Fuel exports 7.7% (2024)
- Electric power transmission and distribution losses 3.3% (2024)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 53.9% (2023)
Frequently asked questions
- What is share of electricity generation from nuclear in South Korea?
- Share of electricity generation from nuclear in South Korea was 29.6% 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 South Korea?
- The highest recorded value was 49.0% in 1987.
- What is the lowest share of electricity generation from nuclear recorded in South Korea?
- The lowest recorded value was 22.5% in 2018.
- How does South Korea rank for share of electricity generation from nuclear?
- South Korea ranks 12th out of 207 countries with data for 2025.
- Is share of electricity generation from nuclear rising or falling in South Korea?
- Over the last ten years it is down 1.7%. The long-run trend across the full record is falling.
- Where does this South Korea 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.
Download this data
CSV · JSON — 41 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured as a percentage of total electricity produced in the country or region.