Primary energy from nuclear in Japan
Japan: Primary energy from nuclear was 285.05 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
285.05 terawatt-hours
Change on year
up 10.8%
World rank
7th
of 219 countries
All-time high
987.8 terawatt-hours
in 1998
All-time low
0 terawatt-hours
in 2014
Years of data
61
1965–2025
Primary energy from nuclear in Japan, 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
The most recent figure for primary energy from nuclear in Japan is 285.05 terawatt-hours, measured in 2025.
That represents a change of up 10.8% on the previous year and up 1,979.0% over ten years.
Over the whole period, primary energy from nuclear in Japan peaked at 987.8 terawatt-hours in 1998 and was at its lowest, 0 terawatt-hours, in 2014.
That places Japan 7th out of 219 countries with data for 2025, putting it 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 Japan, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0.0758 terawatt-hours | — |
| 1966 | 1.77 terawatt-hours | +2236.0% |
| 1967 | 1.91 terawatt-hours | +7.7% |
| 1968 | 3.16 terawatt-hours | +66.0% |
| 1969 | 3.28 terawatt-hours | +3.6% |
| 1970 | 13.88 terawatt-hours | +323.4% |
| 1971 | 24.27 terawatt-hours | +74.9% |
| 1972 | 28.73 terawatt-hours | +18.4% |
| 1973 | 29.42 terawatt-hours | +2.4% |
| 1974 | 59.69 terawatt-hours | +102.9% |
| 1975 | 76.14 terawatt-hours | +27.5% |
| 1976 | 103.27 terawatt-hours | +35.6% |
| 1977 | 95.94 terawatt-hours | -7.1% |
| 1978 | 179.74 terawatt-hours | +87.3% |
| 1979 | 213.31 terawatt-hours | +18.7% |
| 1980 | 250.28 terawatt-hours | +17.3% |
| 1981 | 266.12 terawatt-hours | +6.3% |
| 1982 | 310.39 terawatt-hours | +16.6% |
| 1983 | 346.34 terawatt-hours | +11.6% |
| 1984 | 406.86 terawatt-hours | +17.5% |
| 1985 | 483.57 terawatt-hours | +18.9% |
| 1986 | 501.12 terawatt-hours | +3.6% |
| 1987 | 571.53 terawatt-hours | +14.1% |
| 1988 | 526.96 terawatt-hours | -7.8% |
| 1989 | 563.07 terawatt-hours | +6.9% |
| 1990 | 589.61 terawatt-hours | +4.7% |
| 1991 | 632.4 terawatt-hours | +7.3% |
| 1992 | 657.68 terawatt-hours | +4.0% |
| 1993 | 750.61 terawatt-hours | +14.1% |
| 1994 | 782.57 terawatt-hours | +4.3% |
| 1995 | 869.36 terawatt-hours | +11.1% |
| 1996 | 898.49 terawatt-hours | +3.4% |
| 1997 | 973.2 terawatt-hours | +8.3% |
| 1998 | 987.8 terawatt-hours | +1.5% |
| 1999 | 961.32 terawatt-hours | -2.7% |
| 2000 | 967.03 terawatt-hours | +0.6% |
| 2001 | 971.33 terawatt-hours | +0.4% |
| 2002 | 952.3 terawatt-hours | -2.0% |
| 2003 | 697.21 terawatt-hours | -26.8% |
| 2004 | 866.26 terawatt-hours | +24.2% |
| 2005 | 888 terawatt-hours | +2.5% |
| 2006 | 922.09 terawatt-hours | +3.8% |
| 2007 | 845.48 terawatt-hours | -8.3% |
| 2008 | 762.86 terawatt-hours | -9.8% |
| 2009 | 832.27 terawatt-hours | +9.1% |
| 2010 | 885.92 terawatt-hours | +6.4% |
| 2011 | 493.72 terawatt-hours | -44.3% |
| 2012 | 54.52 terawatt-hours | -89.0% |
| 2013 | 44.25 terawatt-hours | -18.8% |
| 2014 | 0 terawatt-hours | -100.0% |
| 2015 | 13.71 terawatt-hours | — |
| 2016 | 53.57 terawatt-hours | +290.7% |
| 2017 | 88.1 terawatt-hours | +64.5% |
| 2018 | 148.81 terawatt-hours | +68.9% |
| 2019 | 198.9 terawatt-hours | +33.7% |
| 2020 | 130.3 terawatt-hours | -34.5% |
| 2021 | 185.52 terawatt-hours | +42.4% |
| 2022 | 156.89 terawatt-hours | -15.4% |
| 2023 | 234.73 terawatt-hours | +49.6% |
| 2024 | 257.29 terawatt-hours | +9.6% |
| 2025 | 285.05 terawatt-hours | +10.8% |
Biggest year-on-year movements
Years where Primary energy from nuclear in Japan 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 |
|---|---|---|---|
| 1966 | +2236.0% | 0.0758 terawatt-hours | 1.77 terawatt-hours |
| 1970 | +323.4% | 3.28 terawatt-hours | 13.88 terawatt-hours |
| 2016 | +290.7% | 13.71 terawatt-hours | 53.57 terawatt-hours |
| 2014 | -100.0% | 44.25 terawatt-hours | 0 terawatt-hours |
| 2012 | -89.0% | 493.72 terawatt-hours | 54.52 terawatt-hours |
| 1974 | +102.9% | 29.42 terawatt-hours | 59.69 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.04 terawatt-hours | 0.0758 terawatt-hours | 3.28 terawatt-hours | 5 |
| 1970s | 82.44 terawatt-hours | 13.88 terawatt-hours | 213.31 terawatt-hours | 10 |
| 1980s | 422.62 terawatt-hours | 250.28 terawatt-hours | 571.53 terawatt-hours | 10 |
| 1990s | 810.3 terawatt-hours | 589.61 terawatt-hours | 987.8 terawatt-hours | 10 |
| 2000s | 870.48 terawatt-hours | 697.21 terawatt-hours | 971.33 terawatt-hours | 10 |
| 2010s | 198.15 terawatt-hours | 0 terawatt-hours | 885.92 terawatt-hours | 10 |
| 2020s | 208.3 terawatt-hours | 130.3 terawatt-hours | 285.05 terawatt-hours | 6 |
Countries ranked near Japan
More energy & mining data for Japan
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate -0.7535 % 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 19.6% (2025)
Frequently asked questions
- What is primary energy from nuclear in Japan?
- Primary energy from nuclear in Japan was 285.05 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 Japan?
- The highest recorded value was 987.8 terawatt-hours in 1998.
- What is the lowest primary energy from nuclear recorded in Japan?
- The lowest recorded value was 0 terawatt-hours in 2014.
- How does Japan rank for primary energy from nuclear?
- Japan ranks 7th out of 219 countries with data for 2025.
- Is primary energy from nuclear rising or falling in Japan?
- Over the last ten years it is up 1,979.0%. The long-run trend across the full record is volatile.
- Where does this Japan 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.