Japan vs OECD (EI): Solar energy generation by region
Japan
110.79 terawatt-hours
in 2025
OECD (EI)
1,106 terawatt-hours
in 2025
Japan rank
4th
OECD (EI) rank
1st
Solar energy generation by region over time
- Japan
- OECD (EI)
How they compare
OECD (EI) currently reports 1,106 terawatt-hours against 110.79 terawatt-hours in Japan, a difference of 995.21 terawatt-hours.
That makes OECD (EI)'s figure about 10.0 times Japan's.
Across all 61 years both countries report, OECD (EI) has been ahead every year.
Japan ranks 4th and OECD (EI) ranks 1st of 79 countries.
OECD (EI) has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Japan | OECD (EI) | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | β |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | β |
| 1980s | 0 terawatt-hours | 0.0319 terawatt-hours | 0.0319 terawatt-hours | OECD (EI) |
| 1990s | 0.0616 terawatt-hours | 0.6219 terawatt-hours | 0.5603 terawatt-hours | OECD (EI) |
| 2000s | 1.53 terawatt-hours | 5.89 terawatt-hours | 4.35 terawatt-hours | OECD (EI) |
| 2010s | 31.31 terawatt-hours | 186.55 terawatt-hours | 155.24 terawatt-hours | OECD (EI) |
| 2020s | 92.47 terawatt-hours | 736.92 terawatt-hours | 644.44 terawatt-hours | OECD (EI) |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher solar energy generation by region, Japan or OECD (EI)?
- OECD (EI), at 1,106 terawatt-hours against 110.79 terawatt-hours in Japan as of 2025.
- What is the difference in solar energy generation by region between Japan and OECD (EI)?
- 995.21 terawatt-hours, with OECD (EI) ahead.
- How many years of comparable data are there for Japan and OECD (EI)?
- 61 years are reported by both, from 1965 to 2025.
- How do Japan and OECD (EI) rank globally for solar energy generation by region?
- Japan ranks 4th and OECD (EI) ranks 1st of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026) β with major processing by Our World in Data, published as Solar energy generation by region. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Figures are based on gross generation and do not account for cross-border electricity supply.