Bulgaria vs Spain: Annual percentage change in primary energy from nuclear
Bulgaria
-2.8%
in 2025
Spain
-0.5%
in 2025
Bulgaria rank
25th
Spain rank
22nd
Annual percentage change in primary energy from nuclear over time
- Bulgaria
- Spain
How they compare
Spain currently reports -0.5% against -2.8% in Bulgaria, a difference of 2.3%.
The two have swapped places 29 times across 51 shared years of data; in 1975 it was Bulgaria ahead.
Bulgaria ranks 25th and Spain ranks 22nd of 36 countries.
Across the 6 decades both report, Bulgaria averaged higher in 3 and Spain in 3.
Head to head by decade
| Decade | Bulgaria | Spain | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 58.7% | -0.8% | 59.5% | Bulgaria |
| 1980s | 10.1% | 29.0% | 18.9% | Spain |
| 1990s | 1.3% | 0.5% | 0.8% | Bulgaria |
| 2000s | 0.4% | -0.9% | 1.3% | Bulgaria |
| 2010s | 1.0% | 1.2% | 0.2% | Spain |
| 2020s | -1.3% | -1.2% | 0.1% | Spain |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from nuclear, Bulgaria or Spain?
- Spain, at -0.5% against -2.8% in Bulgaria as of 2025.
- What is the difference in annual percentage change in primary energy from nuclear between Bulgaria and Spain?
- 2.3%, with Spain ahead.
- How many years of comparable data are there for Bulgaria and Spain?
- 51 years are reported by both, from 1975 to 2025.
- How do Bulgaria and Spain rank globally for annual percentage change in primary energy from nuclear?
- Bulgaria ranks 25th and Spain ranks 22nd of 36 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) β with major processing by Our World in Data, published as Annual percentage change in primary energy from nuclear. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Percentage change in total energy supply relative to the previous year.