Japan vs OECD (EI): Solar energy generation vs. capacity
Japan
110,787 terawatt-hours
in 2025
OECD (EI)
1.11 million terawatt-hours
in 2025
Japan rank
4th
OECD (EI) rank
1st
Solar energy generation vs. capacity over time
- Japan
- OECD (EI)
How they compare
OECD (EI) currently reports 1.11 million terawatt-hours against 110,787 terawatt-hours in Japan, a difference of 995,713 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 | — |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1980s | 0 terawatt-hours | 31.93 terawatt-hours | 31.93 terawatt-hours | OECD (EI) |
| 1990s | 61.56 terawatt-hours | 621.89 terawatt-hours | 560.33 terawatt-hours | OECD (EI) |
| 2000s | 1,534 terawatt-hours | 5,889 terawatt-hours | 4,355 terawatt-hours | OECD (EI) |
| 2010s | 31,312 terawatt-hours | 186,550 terawatt-hours | 155,238 terawatt-hours | OECD (EI) |
| 2020s | 92,473 terawatt-hours | 736,917 terawatt-hours | 644,445 terawatt-hours | OECD (EI) |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher solar energy generation vs. capacity, Japan or OECD (EI)?
- OECD (EI), at 1.11 million terawatt-hours against 110,787 terawatt-hours in Japan as of 2025.
- What is the difference in solar energy generation vs. capacity between Japan and OECD (EI)?
- 995,713 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 vs. capacity?
- 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) – with major processing by Our World in Data, published as Solar energy generation vs. capacity. 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.