Japan vs Republic of Korea: Annual change in primary energy from fossil fuels
Japan
-81.85 terawatt-hours
in 2025
Republic of Korea
-43.99 terawatt-hours
in 2025
Japan rank
76th
Republic of Korea rank
74th
Annual change in primary energy from fossil fuels over time
- Japan
- Republic of Korea
How they compare
Republic of Korea currently reports -43.99 terawatt-hours against -81.85 terawatt-hours in Japan, a difference of 37.86 terawatt-hours.
The two have swapped places 13 times across 39 shared years of data; in 1987 it was Japan ahead.
Japan ranks 76th and Republic of Korea ranks 74th of 76 countries.
Across the 5 decades both report, Japan averaged higher in 1 and Republic of Korea in 4.
Head to head by decade
| Decade | Japan | Republic of Korea | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 171.43 terawatt-hours | 62.71 terawatt-hours | 108.73 terawatt-hours | Japan |
| 1990s | 72.3 terawatt-hours | 103.58 terawatt-hours | 31.28 terawatt-hours | Republic of Korea |
| 2000s | -33.23 terawatt-hours | 58.57 terawatt-hours | 91.8 terawatt-hours | Republic of Korea |
| 2010s | -5.24 terawatt-hours | 62.31 terawatt-hours | 67.54 terawatt-hours | Republic of Korea |
| 2020s | -108.85 terawatt-hours | -19.17 terawatt-hours | 89.68 terawatt-hours | Republic of Korea |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from fossil fuels, Japan or Republic of Korea?
- Republic of Korea, at -43.99 terawatt-hours against -81.85 terawatt-hours in Japan as of 2025.
- What is the difference in annual change in primary energy from fossil fuels between Japan and Republic of Korea?
- 37.86 terawatt-hours, with Republic of Korea ahead.
- How many years of comparable data are there for Japan and Republic of Korea?
- 39 years are reported by both, from 1987 to 2025.
- How do Japan and Republic of Korea rank globally for annual change in primary energy from fossil fuels?
- Japan ranks 76th and Republic of Korea ranks 74th of 76 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Annual change in primary energy from fossil fuels. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.