South Korea vs Slovakia: Primary energy from hydropower
South Korea
3.81 terawatt-hours
in 2025
Slovakia
2.96 terawatt-hours
in 2025
South Korea rank
46th
Slovakia rank
49th
Primary energy from hydropower over time
- South Korea
- Slovakia
How they compare
South Korea currently reports 3.81 terawatt-hours against 2.96 terawatt-hours in Slovakia, a difference of 0.85 terawatt-hours.
That makes South Korea's figure about 1.3 times Slovakia's.
The two have swapped places 15 times across 61 shared years of data; in 1965 it was Slovakia ahead.
South Korea ranks 46th and Slovakia ranks 49th of 77 countries.
Across the 7 decades both report, South Korea averaged higher in 1 and Slovakia in 6.
Head to head by decade
| Decade | South Korea | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1 terawatt-hours | 1.83 terawatt-hours | 0.83 terawatt-hours | Slovakia |
| 1970s | 1.61 terawatt-hours | 1.91 terawatt-hours | 0.3039 terawatt-hours | Slovakia |
| 1980s | 2.57 terawatt-hours | 1.88 terawatt-hours | 0.696 terawatt-hours | South Korea |
| 1990s | 3.43 terawatt-hours | 3.5 terawatt-hours | 0.0681 terawatt-hours | Slovakia |
| 2000s | 3.54 terawatt-hours | 4.43 terawatt-hours | 0.886 terawatt-hours | Slovakia |
| 2010s | 3.32 terawatt-hours | 4.27 terawatt-hours | 0.945 terawatt-hours | Slovakia |
| 2020s | 3.72 terawatt-hours | 4.15 terawatt-hours | 0.4378 terawatt-hours | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy from hydropower, South Korea or Slovakia?
- South Korea, at 3.81 terawatt-hours against 2.96 terawatt-hours in Slovakia as of 2025.
- What is the difference in primary energy from hydropower between South Korea and Slovakia?
- 0.85 terawatt-hours, with South Korea ahead.
- How many years of comparable data are there for South Korea and Slovakia?
- 61 years are reported by both, from 1965 to 2025.
- How do South Korea and Slovakia rank globally for primary energy from hydropower?
- South Korea ranks 46th and Slovakia ranks 49th of 77 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 Primary energy from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours of total energy supply.