Year-to-year percentage change in primary energy use by source in Bulgaria
Bulgaria: Year-to-year percentage change in primary energy use by source was 24.4% in 2025. ◆ Volatile
Year-to-year percentage change in primary energy use by source in Bulgaria, 2008–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in %.
Analysis
In 2025, year-to-year percentage change in primary energy use by source in Bulgaria stood at 24.4%.
That represents a change of down 56.4% on the previous year and up 145.2% over ten years.
Over the whole period, year-to-year percentage change in primary energy use by source in Bulgaria peaked at 1,856.3% in 2009 and was at its lowest, -9.7%, in 2014.
That places Bulgaria 38th out of 76 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1,017.3% | 178.3% | 1,856.3% | 2 |
| 2010s | 168.7% | -9.7% | 672.0% | 10 |
| 2020s | 32.5% | -0.1% | 68.1% | 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 year-to-year percentage change in primary energy use by source in Bulgaria?
- Year-to-year percentage change in primary energy use by source in Bulgaria was 24.4% 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 year-to-year percentage change in primary energy use by source recorded in Bulgaria?
- The highest recorded value was 1,856.3% in 2009.
- What is the lowest year-to-year percentage change in primary energy use by source recorded in Bulgaria?
- The lowest recorded value was -9.7% in 2014.
- How does Bulgaria rank for year-to-year percentage change in primary energy use by source?
- Bulgaria ranks 38th out of 76 countries with data for 2025.
- Is year-to-year percentage change in primary energy use by source rising or falling in Bulgaria?
- Over the last ten years it is up 145.2%. 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 Year-to-year percentage change in primary energy use by source. Statizoid updates them automatically from the source API.
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About this data
Percentage change in total energy supply relative to the previous year.