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
The most recent figure for solar energy generation by region in Japan is 110.79 terawatt-hours, measured in 2025. That is the highest value across all 61 years on record.
The figure 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.
That places Japan 4th out of 79 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.
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
- Fuel imports 19.6% (2025)
- Ores and metals imports 7.0% (2025)
- Ores and metals exports 3.6% (2025)
- Gas production 22.04 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 178.13 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 22.04 terawatt-hours (2024)
- Gas production per person 178.13 kilowatt-hours per person (2024)
- Fuel exports 1.2% (2025)
- Electric power transmission and distribution losses 4.9% (2024)
- Share of dietary energy supply from carbohydrates vs gdp per capita 55.06 (2022)
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.