Hydropower generation by region in Japan
Japan: Hydropower generation by region was 74.25 terawatt-hours in 2025. ▬ Flat
Latest (2025)
74.25 terawatt-hours
Change on year
down 6.6%
World rank
10th
of 80 countries
All-time high
94.42 terawatt-hours
in 1991
All-time low
64.46 terawatt-hours
in 1994
Years of data
61
1965–2025
Hydropower generation by region in Japan, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for hydropower generation by region in Japan is 74.25 terawatt-hours, measured in 2025.
That represents a change of down 6.6% on the previous year and down 13.4% over ten years.
Over the whole period, hydropower generation by region in Japan peaked at 94.42 terawatt-hours in 1991 and was at its lowest, 64.46 terawatt-hours, in 1994.
Japan ranks 10th of 80 countries on this measure, in the top quarter.
Hydropower generation by region in Japan, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 76.07 terawatt-hours | — |
| 1966 | 79.35 terawatt-hours | +4.3% |
| 1967 | 68.55 terawatt-hours | -13.6% |
| 1968 | 73.45 terawatt-hours | +7.1% |
| 1969 | 75.35 terawatt-hours | +2.6% |
| 1970 | 75.4 terawatt-hours | +0.1% |
| 1971 | 84.2 terawatt-hours | +11.7% |
| 1972 | 85.1 terawatt-hours | +1.1% |
| 1973 | 66.78 terawatt-hours | -21.5% |
| 1974 | 82.68 terawatt-hours | +23.8% |
| 1975 | 83.41 terawatt-hours | +0.9% |
| 1976 | 83.59 terawatt-hours | +0.2% |
| 1977 | 72.97 terawatt-hours | -12.7% |
| 1978 | 70.05 terawatt-hours | -4.0% |
| 1979 | 80.74 terawatt-hours | +15.3% |
| 1980 | 88.29 terawatt-hours | +9.3% |
| 1981 | 87.59 terawatt-hours | -0.8% |
| 1982 | 81.61 terawatt-hours | -6.8% |
| 1983 | 84.27 terawatt-hours | +3.3% |
| 1984 | 71.62 terawatt-hours | -15.0% |
| 1985 | 82.87 terawatt-hours | +15.7% |
| 1986 | 80.82 terawatt-hours | -2.5% |
| 1987 | 74.79 terawatt-hours | -7.5% |
| 1988 | 90.29 terawatt-hours | +20.7% |
| 1989 | 91.74 terawatt-hours | +1.6% |
| 1990 | 86.89 terawatt-hours | -5.3% |
| 1991 | 94.42 terawatt-hours | +8.7% |
| 1992 | 80.05 terawatt-hours | -15.2% |
| 1993 | 92.58 terawatt-hours | +15.7% |
| 1994 | 64.46 terawatt-hours | -30.4% |
| 1995 | 78.79 terawatt-hours | +22.2% |
| 1996 | 77.17 terawatt-hours | -2.1% |
| 1997 | 86.44 terawatt-hours | +12.0% |
| 1998 | 89.08 terawatt-hours | +3.1% |
| 1999 | 83.79 terawatt-hours | -5.9% |
| 2000 | 84.47 terawatt-hours | +0.8% |
| 2001 | 81.54 terawatt-hours | -3.5% |
| 2002 | 80.6 terawatt-hours | -1.1% |
| 2003 | 92.47 terawatt-hours | +14.7% |
| 2004 | 91.67 terawatt-hours | -0.9% |
| 2005 | 77.56 terawatt-hours | -15.4% |
| 2006 | 88.81 terawatt-hours | +14.5% |
| 2007 | 74.51 terawatt-hours | -16.1% |
| 2008 | 75.16 terawatt-hours | +0.9% |
| 2009 | 70.47 terawatt-hours | -6.3% |
| 2010 | 88.5 terawatt-hours | +25.6% |
| 2011 | 82.49 terawatt-hours | -6.8% |
| 2012 | 77.1 terawatt-hours | -6.5% |
| 2013 | 79.33 terawatt-hours | +2.9% |
| 2014 | 81.71 terawatt-hours | +3.0% |
| 2015 | 85.77 terawatt-hours | +5.0% |
| 2016 | 79.43 terawatt-hours | -7.4% |
| 2017 | 79.24 terawatt-hours | -0.2% |
| 2018 | 81 terawatt-hours | +2.2% |
| 2019 | 73.92 terawatt-hours | -8.7% |
| 2020 | 78.33 terawatt-hours | +6.0% |
| 2021 | 79.63 terawatt-hours | +1.7% |
| 2022 | 74.87 terawatt-hours | -6.0% |
| 2023 | 74.53 terawatt-hours | -0.5% |
| 2024 | 79.48 terawatt-hours | +6.6% |
| 2025 | 74.25 terawatt-hours | -6.6% |
Japan compared with similar countries
- Japan's 74.25 terawatt-hours is above the median for high income countries, which is 3.45 terawatt-hours, 21.5× the median. (47 countries reporting)
- Japan's 74.25 terawatt-hours is above the median for East Asia & Pacific, which is 18.9 terawatt-hours, 3.9× the median. (12 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 74.55 terawatt-hours | 68.55 terawatt-hours | 79.35 terawatt-hours | 5 |
| 1970s | 78.49 terawatt-hours | 66.78 terawatt-hours | 85.1 terawatt-hours | 10 |
| 1980s | 83.39 terawatt-hours | 71.62 terawatt-hours | 91.74 terawatt-hours | 10 |
| 1990s | 83.37 terawatt-hours | 64.46 terawatt-hours | 94.42 terawatt-hours | 10 |
| 2000s | 81.73 terawatt-hours | 70.47 terawatt-hours | 92.47 terawatt-hours | 10 |
| 2010s | 80.85 terawatt-hours | 73.92 terawatt-hours | 88.5 terawatt-hours | 10 |
| 2020s | 76.85 terawatt-hours | 74.25 terawatt-hours | 79.63 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 hydropower generation by region in Japan?
- Hydropower generation by region in Japan was 74.25 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest hydropower generation by region recorded in Japan?
- The highest recorded value was 94.42 terawatt-hours in 1991.
- What is the lowest hydropower generation by region recorded in Japan?
- The lowest recorded value was 64.46 terawatt-hours in 1994.
- How does Japan rank for hydropower generation by region?
- Japan ranks 10th out of 80 countries with data for 2025.
- Is hydropower generation by region rising or falling in Japan?
- Over the last ten years it is down 13.4%. The long-run trend across the full record is flat.
- Where does this Japan data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as part of Hydropower generation by region. 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
Figures are based on gross primary hydroelectric generation and do not account for cross-border electricity supply.