Bulgaria vs Singapore: Year-to-year change in primary energy from fossil fuels vs.
Bulgaria
0.1847 terawatt-hours
in 2025
Singapore
0.1644 terawatt-hours
in 2025
Bulgaria rank
48th
Singapore rank
50th
Year-to-year change in primary energy from fossil fuels vs. over time
- Bulgaria
- Singapore
How they compare
Bulgaria currently reports 0.1847 terawatt-hours against 0.1644 terawatt-hours in Singapore, a difference of 0.0203 terawatt-hours.
That makes Bulgaria's figure about 1.1 times Singapore's.
The two have swapped places 26 times across 60 shared years of data; in 1966 it was Bulgaria ahead.
Bulgaria ranks 48th and Singapore ranks 50th of 80 countries.
Across the 7 decades both report, Bulgaria averaged higher in 4 and Singapore in 3.
Head to head by decade
| Decade | Bulgaria | Singapore | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.0402 terawatt-hours | 0 terawatt-hours | 0.0402 terawatt-hours | Singapore |
| 1970s | 2.02 terawatt-hours | 0 terawatt-hours | 2.02 terawatt-hours | Bulgaria |
| 1980s | 2.48 terawatt-hours | 0.0258 terawatt-hours | 2.45 terawatt-hours | Bulgaria |
| 1990s | 0.3823 terawatt-hours | 0.0485 terawatt-hours | 0.3338 terawatt-hours | Bulgaria |
| 2000s | -0.0667 terawatt-hours | 0.0856 terawatt-hours | 0.1523 terawatt-hours | Singapore |
| 2010s | 1.34 terawatt-hours | 0.09 terawatt-hours | 1.25 terawatt-hours | Bulgaria |
| 2020s | 0.2428 terawatt-hours | 0.2795 terawatt-hours | 0.0367 terawatt-hours | Singapore |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher year-to-year change in primary energy from fossil fuels vs. low-carbon energy, Bulgaria or Singapore?
- Bulgaria, at 0.1847 terawatt-hours against 0.1644 terawatt-hours in Singapore as of 2025.
- What is the difference in year-to-year change in primary energy from fossil fuels vs. low-carbon energy between Bulgaria and Singapore?
- 0.0203 terawatt-hours, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Singapore?
- 60 years are reported by both, from 1966 to 2025.
- How do Bulgaria and Singapore rank globally for year-to-year change in primary energy from fossil fuels vs. low-carbon energy?
- Bulgaria ranks 48th and Singapore ranks 50th of 80 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Year-to-year change in primary energy from fossil fuels vs. low-carbon energy. 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.