Japan vs Slovakia: Electricity generation by source
Japan
0 terawatt-hours
in 2025
Slovakia
0.01 terawatt-hours
in 2025
Japan rank
28th
Slovakia rank
25th
Electricity generation by source over time
- Japan
- Slovakia
How they compare
Slovakia currently reports 0.01 terawatt-hours against 0 terawatt-hours in Japan, a difference of 0.01 terawatt-hours.
The two have swapped places 1 time across 55 shared years of data; in 1971 it was Japan ahead.
Japan ranks 28th and Slovakia ranks 25th of 214 countries.
Across the 6 decades both report, Japan averaged higher in 3 and Slovakia in 1.
Head to head by decade
| Decade | Japan | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 0.4726 terawatt-hours | 0 terawatt-hours | 0.4726 terawatt-hours | Japan |
| 1980s | 10.96 terawatt-hours | 0 terawatt-hours | 10.96 terawatt-hours | Japan |
| 1990s | 13.85 terawatt-hours | 0 terawatt-hours | 13.85 terawatt-hours | Japan |
| 2000s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 2010s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 2020s | 0 terawatt-hours | 0.0017 terawatt-hours | 0.0017 terawatt-hours | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher electricity generation by source, Japan or Slovakia?
- Slovakia, at 0.01 terawatt-hours against 0 terawatt-hours in Japan as of 2025.
- What is the difference in electricity generation by source between Japan and Slovakia?
- 0.01 terawatt-hours, with Slovakia ahead.
- How many years of comparable data are there for Japan and Slovakia?
- 55 years are reported by both, from 1971 to 2025.
- How do Japan and Slovakia rank globally for electricity generation by source?
- Japan ranks 28th and Slovakia ranks 25th of 214 countries.
- Where does this data come from?
- Ember (2026); Pinto et al. (2023); Energy Institute - Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Electricity generation by source. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours.