Japan vs South Korea: Electricity generation
Japan
1,030 terawatt-hours
in 2025
South Korea
624.66 terawatt-hours
in 2025
Japan rank
5th
South Korea rank
8th
Electricity generation over time
- Japan
- South Korea
How they compare
Japan currently reports 1,030 terawatt-hours against 624.66 terawatt-hours in South Korea, a difference of 405.34 terawatt-hours.
That makes Japan's figure about 1.6 times South Korea's.
Across all 41 years both countries report, Japan has been ahead every year.
Japan ranks 5th and South Korea ranks 8th of 214 countries.
Japan has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Japan | South Korea | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 724.18 terawatt-hours | 81.87 terawatt-hours | 642.31 terawatt-hours | Japan |
| 1990s | 985.46 terawatt-hours | 191.71 terawatt-hours | 793.75 terawatt-hours | Japan |
| 2000s | 1,129 terawatt-hours | 376.11 terawatt-hours | 753.38 terawatt-hours | Japan |
| 2010s | 1,082 terawatt-hours | 548.68 terawatt-hours | 533.18 terawatt-hours | Japan |
| 2020s | 1,023 terawatt-hours | 612.5 terawatt-hours | 410.71 terawatt-hours | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher electricity generation, Japan or South Korea?
- Japan, at 1,030 terawatt-hours against 624.66 terawatt-hours in South Korea as of 2025.
- What is the difference in electricity generation between Japan and South Korea?
- 405.34 terawatt-hours, with Japan ahead.
- How many years of comparable data are there for Japan and South Korea?
- 41 years are reported by both, from 1985 to 2025.
- How do Japan and South Korea rank globally for electricity generation?
- Japan ranks 5th and South Korea ranks 8th of 214 countries.
- Where does this data come from?
- Ember (2026) and other sources – with major processing by Our World in Data, published as Electricity generation. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Total electricity generated in each country or region, measured in terawatt-hours.