Bulgaria vs Slovakia: Primary energy from low-carbon energy
Bulgaria
64.86 terawatt-hours
in 2025
Slovakia
68.4 terawatt-hours
in 2025
Bulgaria rank
43rd
Slovakia rank
41st
Primary energy from low-carbon energy over time
- Bulgaria
- Slovakia
How they compare
Slovakia currently reports 68.4 terawatt-hours against 64.86 terawatt-hours in Bulgaria, a difference of 3.54 terawatt-hours.
That makes Slovakia's figure about 1.1 times Bulgaria's.
The two have swapped places 12 times across 61 shared years of data; in 1965 it was Slovakia ahead.
Bulgaria ranks 43rd and Slovakia ranks 41st of 80 countries.
Across the 7 decades both report, Bulgaria averaged higher in 6 and Slovakia in 1.
Head to head by decade
| Decade | Bulgaria | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1.84 terawatt-hours | 1.83 terawatt-hours | 0.0038 terawatt-hours | Bulgaria |
| 1970s | 10.64 terawatt-hours | 3.01 terawatt-hours | 7.63 terawatt-hours | Bulgaria |
| 1980s | 39.09 terawatt-hours | 27.67 terawatt-hours | 11.42 terawatt-hours | Bulgaria |
| 1990s | 49.07 terawatt-hours | 38.99 terawatt-hours | 10.08 terawatt-hours | Bulgaria |
| 2000s | 56.36 terawatt-hours | 56.5 terawatt-hours | 0.1444 terawatt-hours | Slovakia |
| 2010s | 56.62 terawatt-hours | 56.21 terawatt-hours | 0.4092 terawatt-hours | Bulgaria |
| 2020s | 65.23 terawatt-hours | 63.48 terawatt-hours | 1.75 terawatt-hours | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy from low-carbon energy, Bulgaria or Slovakia?
- Slovakia, at 68.4 terawatt-hours against 64.86 terawatt-hours in Bulgaria as of 2025.
- What is the difference in primary energy from low-carbon energy between Bulgaria and Slovakia?
- 3.54 terawatt-hours, with Slovakia ahead.
- How many years of comparable data are there for Bulgaria and Slovakia?
- 61 years are reported by both, from 1965 to 2025.
- How do Bulgaria and Slovakia rank globally for primary energy from low-carbon energy?
- Bulgaria ranks 43rd and Slovakia ranks 41st of 80 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 low-carbon energy. 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.