Annual change in primary energy from nuclear in Bulgaria
Bulgaria: Annual change in primary energy from nuclear was -1.34 terawatt-hours in 2025. ◆ Volatile
Annual change in primary energy from nuclear in Bulgaria, 1966–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, annual change in primary energy from nuclear in Bulgaria stood at -1.34 terawatt-hours.
Compared with earlier readings it is down 14.6% on the previous year and up 8.5% over ten years.
Over the whole period, annual change in primary energy from nuclear in Bulgaria peaked at 10.89 terawatt-hours in 1988 and was at its lowest, -14.7 terawatt-hours, in 2007.
Bulgaria ranks 209th of 218 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 4 |
| 1970s | 1.87 terawatt-hours | 0 terawatt-hours | 7.38 terawatt-hours | 10 |
| 1980s | 2.54 terawatt-hours | -4.44 terawatt-hours | 10.89 terawatt-hours | 10 |
| 1990s | 0.3782 terawatt-hours | -4.95 terawatt-hours | 7.34 terawatt-hours | 10 |
| 2000s | -0.1691 terawatt-hours | -14.7 terawatt-hours | 7.16 terawatt-hours | 10 |
| 2010s | 0.3937 terawatt-hours | -4.89 terawatt-hours | 5.14 terawatt-hours | 10 |
| 2020s | -0.6166 terawatt-hours | -1.34 terawatt-hours | 0.2136 terawatt-hours | 6 |
Countries ranked near Bulgaria
More energy & mining data for Bulgaria
- Fuel imports 12.3% (2024)
- Ores and metals imports 9.8% (2024)
- Ores and metals exports 15.6% (2024)
- Gas production 0.0968 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 14.32 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 0.0968 terawatt-hours (2024)
- Gas production per person 14.32 kilowatt-hours per person (2024)
- Fuel exports 7.8% (2024)
- Electric power transmission and distribution losses 5.9% (2023)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 46.6% (2023)
Frequently asked questions
- What is annual change in primary energy from nuclear in Bulgaria?
- Annual change in primary energy from nuclear in Bulgaria was -1.34 terawatt-hours in 2025, according to Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest annual change in primary energy from nuclear recorded in Bulgaria?
- The highest recorded value was 10.89 terawatt-hours in 1988.
- What is the lowest annual change in primary energy from nuclear recorded in Bulgaria?
- The lowest recorded value was -14.7 terawatt-hours in 2007.
- How does Bulgaria rank for annual change in primary energy from nuclear?
- Bulgaria ranks 209th out of 218 countries with data for 2025.
- Is annual change in primary energy from nuclear rising or falling in Bulgaria?
- Over the last ten years it is up 8.5%. The long-run trend across the full record is volatile.
- Where does this Bulgaria data come from?
- The figures come from Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as part of Annual change in primary energy from nuclear. Statizoid updates them automatically from the source API.
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CSV · JSON — 60 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.