Solar energy generation by region in Japan
Japan: Solar energy generation by region was 110.79 terawatt-hours in 2025. ◆ Volatile
Solar energy 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
Japan recorded 110.79 terawatt-hours for solar energy generation by region in 2025. That is the highest value across all 61 years on record.
Compared with earlier readings it is up 14.5% on the previous year and up 220.7% over ten years.
Over the whole period, solar energy generation by region in Japan peaked at 110.79 terawatt-hours in 2025 and was at its lowest, 0 terawatt-hours, in 1965.
Japan ranks 4th of 79 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Solar energy generation by region in Japan, 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 terawatt-hours | — |
| 1978 | 0 terawatt-hours | — |
| 1979 | 0 terawatt-hours | — |
| 1980 | 0 terawatt-hours | — |
| 1981 | 0 terawatt-hours | — |
| 1982 | 0 terawatt-hours | — |
| 1983 | 0 terawatt-hours | — |
| 1984 | 0 terawatt-hours | — |
| 1985 | 0 terawatt-hours | — |
| 1986 | 0 terawatt-hours | — |
| 1987 | 0 terawatt-hours | — |
| 1988 | 0 terawatt-hours | — |
| 1989 | 0 terawatt-hours | — |
| 1990 | 0.001 terawatt-hours | — |
| 1991 | 0.001 terawatt-hours | +0.0% |
| 1992 | 0.0105 terawatt-hours | +950.0% |
| 1993 | 0.0225 terawatt-hours | +114.3% |
| 1994 | 0.029 terawatt-hours | +28.9% |
| 1995 | 0.0395 terawatt-hours | +36.2% |
| 1996 | 0.0545 terawatt-hours | +38.0% |
| 1997 | 0.0963 terawatt-hours | +76.7% |
| 1998 | 0.1432 terawatt-hours | +48.7% |
| 1999 | 0.218 terawatt-hours | +52.2% |
| 2000 | 0.3441 terawatt-hours | +57.8% |
| 2001 | 0.4997 terawatt-hours | +45.2% |
| 2002 | 0.6946 terawatt-hours | +39.0% |
| 2003 | 0.954 terawatt-hours | +37.3% |
| 2004 | 1.27 terawatt-hours | +33.3% |
| 2005 | 1.63 terawatt-hours | +28.2% |
| 2006 | 2 terawatt-hours | +22.4% |
| 2007 | 2.31 terawatt-hours | +15.9% |
| 2008 | 2.59 terawatt-hours | +12.2% |
| 2009 | 3.05 terawatt-hours | +17.4% |
| 2010 | 3.98 terawatt-hours | +30.7% |
| 2011 | 5.44 terawatt-hours | +36.6% |
| 2012 | 7.37 terawatt-hours | +35.5% |
| 2013 | 12.91 terawatt-hours | +75.1% |
| 2014 | 23.55 terawatt-hours | +82.4% |
| 2015 | 34.54 terawatt-hours | +46.7% |
| 2016 | 43.33 terawatt-hours | +25.4% |
| 2017 | 53.48 terawatt-hours | +23.4% |
| 2018 | 61.18 terawatt-hours | +14.4% |
| 2019 | 67.35 terawatt-hours | +10.1% |
| 2020 | 75.66 terawatt-hours | +12.3% |
| 2021 | 84.18 terawatt-hours | +11.3% |
| 2022 | 91.06 terawatt-hours | +8.2% |
| 2023 | 96.36 terawatt-hours | +5.8% |
| 2024 | 96.79 terawatt-hours | +0.4% |
| 2025 | 110.79 terawatt-hours | +14.5% |
Japan compared with similar countries
- Japan's 110.79 terawatt-hours is above the median for high income countries, which is 4.94 terawatt-hours, 22.4× the median. (47 countries reporting)
- Japan's 110.79 terawatt-hours is above the median for East Asia & Pacific, which is 8.31 terawatt-hours, 13.3× the median. (12 countries reporting)
Biggest year-on-year movements
Years where Solar energy generation by region 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 |
|---|---|---|---|
| 1992 | +950.0% | 0.001 terawatt-hours | 0.0105 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 5 |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 1980s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 1990s | 0.0616 terawatt-hours | 0.001 terawatt-hours | 0.218 terawatt-hours | 10 |
| 2000s | 1.53 terawatt-hours | 0.3441 terawatt-hours | 3.05 terawatt-hours | 10 |
| 2010s | 31.31 terawatt-hours | 3.98 terawatt-hours | 67.35 terawatt-hours | 10 |
| 2020s | 92.47 terawatt-hours | 75.66 terawatt-hours | 110.79 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 solar energy generation by region in Japan?
- Solar energy generation by region in Japan was 110.79 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 solar energy generation by region recorded in Japan?
- The highest recorded value was 110.79 terawatt-hours in 2025.
- What is the lowest solar energy generation by region recorded in Japan?
- The lowest recorded value was 0 terawatt-hours in 1965.
- How does Japan rank for solar energy generation by region?
- Japan ranks 4th out of 79 countries with data for 2025.
- Is solar energy generation by region rising or falling in Japan?
- Over the last ten years it is up 220.7%. 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) – with major processing by Our World in Data, published as part of Solar energy 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 generation and do not account for cross-border electricity supply.