CIS (EI) vs Japan: Solar energy generation vs. capacity
CIS (EI)
15,220 terawatt-hours
in 2025
Japan
110,787 terawatt-hours
in 2025
CIS (EI) rank
2nd
Japan rank
4th
Solar energy generation vs. capacity over time
- CIS (EI)
- Japan
How they compare
Japan currently reports 110,787 terawatt-hours against 15,220 terawatt-hours in CIS (EI), a difference of 95,567 terawatt-hours.
That makes Japan's figure about 7.3 times CIS (EI)'s.
Across all 37 years both countries report, Japan has been ahead every year.
CIS (EI) ranks 2nd and Japan ranks 4th of 2 groups.
Japan has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | CIS (EI) | Japan | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1990s | 0 terawatt-hours | 61.56 terawatt-hours | 61.56 terawatt-hours | Japan |
| 2000s | 0.0007 terawatt-hours | 1,534 terawatt-hours | 1,534 terawatt-hours | Japan |
| 2010s | 467.96 terawatt-hours | 31,312 terawatt-hours | 30,844 terawatt-hours | Japan |
| 2020s | 7,594 terawatt-hours | 92,473 terawatt-hours | 84,879 terawatt-hours | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher solar energy generation vs. capacity, CIS (EI) or Japan?
- Japan, at 110,787 terawatt-hours against 15,220 terawatt-hours in CIS (EI) as of 2025.
- What is the difference in solar energy generation vs. capacity between CIS (EI) and Japan?
- 95,567 terawatt-hours, with Japan ahead.
- How many years of comparable data are there for CIS (EI) and Japan?
- 37 years are reported by both, from 1965 to 2025.
- How do CIS (EI) and Japan rank globally for solar energy generation vs. capacity?
- CIS (EI) ranks 2nd and Japan ranks 4th of 2 groups.
- 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.