Primary energy from nuclear in South Korea
South Korea: Primary energy from nuclear was 559.67 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
559.67 terawatt-hours
Change on year
down 2.2%
World rank
5th
of 219 countries
All-time high
571.98 terawatt-hours
in 2024
All-time low
0 terawatt-hours
in 1965
Years of data
61
1965–2025
Primary energy from nuclear in South Korea, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, primary energy from nuclear in South Korea stood at 559.67 terawatt-hours.
The figure is down 2.2% on the previous year and up 12.1% over ten years.
Over the whole period, primary energy from nuclear in South Korea peaked at 571.98 terawatt-hours in 2024 and was at its lowest, 0 terawatt-hours, in 1965.
South Korea ranks 5th of 219 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Primary energy from nuclear in South Korea, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0 terawatt-hours | — |
| 1966 | 0 terawatt-hours | — |
| 1967 | 0 terawatt-hours | — |
| 1968 | 0 terawatt-hours | — |
| 1969 | 0 terawatt-hours | — |
| 1970 | 0 terawatt-hours | — |
| 1971 | 0 terawatt-hours | — |
| 1972 | 0 terawatt-hours | — |
| 1973 | 0 terawatt-hours | — |
| 1974 | 0 terawatt-hours | — |
| 1975 | 0 terawatt-hours | — |
| 1976 | 0 terawatt-hours | — |
| 1977 | 0.2166 terawatt-hours | — |
| 1978 | 7.04 terawatt-hours | +3152.4% |
| 1979 | 9.55 terawatt-hours | +35.6% |
| 1980 | 10.54 terawatt-hours | +10.3% |
| 1981 | 8.78 terawatt-hours | -16.7% |
| 1982 | 11.45 terawatt-hours | +30.4% |
| 1983 | 27.17 terawatt-hours | +137.3% |
| 1984 | 35.73 terawatt-hours | +31.5% |
| 1985 | 50.74 terawatt-hours | +42.0% |
| 1986 | 85.79 terawatt-hours | +69.1% |
| 1987 | 119.13 terawatt-hours | +38.9% |
| 1988 | 121.52 terawatt-hours | +2.0% |
| 1989 | 143.53 terawatt-hours | +18.1% |
| 1990 | 160.26 terawatt-hours | +11.7% |
| 1991 | 170.64 terawatt-hours | +6.5% |
| 1992 | 171.3 terawatt-hours | +0.4% |
| 1993 | 176.18 terawatt-hours | +2.8% |
| 1994 | 177.73 terawatt-hours | +0.9% |
| 1995 | 203.12 terawatt-hours | +14.3% |
| 1996 | 224.01 terawatt-hours | +10.3% |
| 1997 | 233.59 terawatt-hours | +4.3% |
| 1998 | 271.79 terawatt-hours | +16.3% |
| 1999 | 312.31 terawatt-hours | +14.9% |
| 2000 | 330.19 terawatt-hours | +5.7% |
| 2001 | 339.8 terawatt-hours | +2.9% |
| 2002 | 360.92 terawatt-hours | +6.2% |
| 2003 | 392.94 terawatt-hours | +8.9% |
| 2004 | 396.11 terawatt-hours | +0.8% |
| 2005 | 444.79 terawatt-hours | +12.3% |
| 2006 | 450.75 terawatt-hours | +1.3% |
| 2007 | 433.14 terawatt-hours | -3.9% |
| 2008 | 457.45 terawatt-hours | +5.6% |
| 2009 | 447.79 terawatt-hours | -2.1% |
| 2010 | 450.29 terawatt-hours | +0.6% |
| 2011 | 468.86 terawatt-hours | +4.1% |
| 2012 | 455.54 terawatt-hours | -2.8% |
| 2013 | 420.56 terawatt-hours | -7.7% |
| 2014 | 473.96 terawatt-hours | +12.7% |
| 2015 | 499.28 terawatt-hours | +5.3% |
| 2016 | 490.89 terawatt-hours | -1.7% |
| 2017 | 449.78 terawatt-hours | -8.4% |
| 2018 | 404.56 terawatt-hours | -10.1% |
| 2019 | 442.15 terawatt-hours | +9.3% |
| 2020 | 485.4 terawatt-hours | +9.8% |
| 2021 | 478.83 terawatt-hours | -1.4% |
| 2022 | 533.5 terawatt-hours | +11.4% |
| 2023 | 546.95 terawatt-hours | +2.5% |
| 2024 | 571.98 terawatt-hours | +4.6% |
| 2025 | 559.67 terawatt-hours | -2.2% |
Biggest year-on-year movements
Years where Primary energy from nuclear in South Korea 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 |
|---|---|---|---|
| 1978 | +3152.4% | 0.2166 terawatt-hours | 7.04 terawatt-hours |
| 1983 | +137.3% | 11.45 terawatt-hours | 27.17 terawatt-hours |
| 1986 | +69.1% | 50.74 terawatt-hours | 85.79 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 5 |
| 1970s | 1.68 terawatt-hours | 0 terawatt-hours | 9.55 terawatt-hours | 10 |
| 1980s | 61.44 terawatt-hours | 8.78 terawatt-hours | 143.53 terawatt-hours | 10 |
| 1990s | 210.09 terawatt-hours | 160.26 terawatt-hours | 312.31 terawatt-hours | 10 |
| 2000s | 405.39 terawatt-hours | 330.19 terawatt-hours | 457.45 terawatt-hours | 10 |
| 2010s | 455.59 terawatt-hours | 404.56 terawatt-hours | 499.28 terawatt-hours | 10 |
| 2020s | 529.39 terawatt-hours | 478.83 terawatt-hours | 571.98 terawatt-hours | 6 |
Countries ranked near South Korea
More energy & mining data for South Korea
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate -1.55 % 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 0.0001 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 25.7% (2024)
Frequently asked questions
- What is primary energy from nuclear in South Korea?
- Primary energy from nuclear in South Korea was 559.67 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest primary energy from nuclear recorded in South Korea?
- The highest recorded value was 571.98 terawatt-hours in 2024.
- What is the lowest primary energy from nuclear recorded in South Korea?
- The lowest recorded value was 0 terawatt-hours in 1965.
- How does South Korea rank for primary energy from nuclear?
- South Korea ranks 5th out of 219 countries with data for 2025.
- Is primary energy from nuclear rising or falling in South Korea?
- Over the last ten years it is up 12.1%. The long-run trend across the full record is volatile.
- Where does this South Korea data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as part of Primary energy from nuclear. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours of total energy supply.