Annual percentage change in primary energy from fossil fuels in Bulgaria
Bulgaria: Annual percentage change in primary energy from fossil fuels was 3.0% in 2025. ◆ Volatile
Annual percentage change in primary energy from fossil fuels 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 %.
Analysis
The most recent figure for annual percentage change in primary energy from fossil fuels in Bulgaria is 3.0%, measured in 2025.
Compared with earlier readings it is up 236.5% on the previous year and down 58.5% over ten years.
Over the whole period, annual percentage change in primary energy from fossil fuels in Bulgaria peaked at 16.9% in 1967 and was at its lowest, -21.4%, in 1991.
Bulgaria ranks 12th of 76 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Annual percentage change in primary energy from fossil fuels in Bulgaria, year by year
| Year | % | Change |
|---|---|---|
| 1966 | 7.6% | — |
| 1967 | 16.9% | +124.0% |
| 1968 | 13.8% | -18.7% |
| 1969 | 10.8% | -21.7% |
| 1970 | 12.4% | +15.0% |
| 1971 | 4.2% | -65.8% |
| 1972 | 3.1% | -26.9% |
| 1973 | 3.4% | +9.0% |
| 1974 | 2.6% | -24.0% |
| 1975 | 8.5% | +230.5% |
| 1976 | 2.9% | -65.6% |
| 1977 | 4.2% | +44.9% |
| 1978 | 4.6% | +8.1% |
| 1979 | 3.4% | -24.5% |
| 1980 | 5.7% | +65.8% |
| 1981 | -4.2% | -174.5% |
| 1982 | 1.8% | -141.2% |
| 1983 | -1.0% | -158.2% |
| 1984 | -1.0% | -4.5% |
| 1985 | -0.2% | -76.6% |
| 1986 | 3.2% | -1524.3% |
| 1987 | 0.3% | -89.8% |
| 1988 | -0.8% | -329.6% |
| 1989 | 0.3% | -134.7% |
| 1990 | -8.0% | -3122.5% |
| 1991 | -21.4% | +169.1% |
| 1992 | -4.5% | -79.0% |
| 1993 | 4.8% | -206.7% |
| 1994 | -5.7% | -219.2% |
| 1995 | 5.4% | -194.0% |
| 1996 | -2.4% | -144.6% |
| 1997 | -6.3% | +163.1% |
| 1998 | -4.3% | -32.1% |
| 1999 | -13.6% | +219.3% |
| 2000 | -3.8% | -71.9% |
| 2001 | 4.2% | -208.8% |
| 2002 | -5.8% | -239.7% |
| 2003 | 8.7% | -250.3% |
| 2004 | -3.7% | -142.1% |
| 2005 | 6.2% | -269.7% |
| 2006 | 1.7% | -72.9% |
| 2007 | 5.3% | +214.8% |
| 2008 | -2.9% | -154.1% |
| 2009 | -15.9% | +452.9% |
| 2010 | 2.5% | -115.7% |
| 2011 | 10.2% | +308.1% |
| 2012 | -8.2% | -180.1% |
| 2013 | -10.0% | +22.0% |
| 2014 | 5.7% | -157.2% |
| 2015 | 7.1% | +24.9% |
| 2016 | -4.9% | -169.1% |
| 2017 | 5.5% | -212.0% |
| 2018 | -6.1% | -210.1% |
| 2019 | -2.3% | -62.3% |
| 2020 | -10.9% | +373.8% |
| 2021 | 14.6% | -234.5% |
| 2022 | 6.4% | -56.4% |
| 2023 | -20.0% | -414.9% |
| 2024 | -2.2% | -89.2% |
| 2025 | 3.0% | -236.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 12.2% | 7.6% | 16.9% | 4 |
| 1970s | 4.9% | 2.6% | 12.4% | 10 |
| 1980s | 0.4% | -4.2% | 5.7% | 10 |
| 1990s | -5.6% | -21.4% | 5.4% | 10 |
| 2000s | -0.6% | -15.9% | 8.7% | 10 |
| 2010s | -0.0% | -10.0% | 10.2% | 10 |
| 2020s | -1.5% | -20.0% | 14.6% | 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)
- Fossil fuel production by fuel, per capita 0 terawatt-hours per person (2024)
- Fossil fuel production by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Gas production, per capita 0 terawatt-hours per person (2024)
Frequently asked questions
- What is annual percentage change in primary energy from fossil fuels in Bulgaria?
- Annual percentage change in primary energy from fossil fuels in Bulgaria was 3.0% 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 percentage change in primary energy from fossil fuels recorded in Bulgaria?
- The highest recorded value was 16.9% in 1967.
- What is the lowest annual percentage change in primary energy from fossil fuels recorded in Bulgaria?
- The lowest recorded value was -21.4% in 1991.
- How does Bulgaria rank for annual percentage change in primary energy from fossil fuels?
- Bulgaria ranks 12th out of 76 countries with data for 2025.
- Is annual percentage change in primary energy from fossil fuels rising or falling in Bulgaria?
- Over the last ten years it is down 58.5%. 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 percentage change in primary energy from fossil fuels. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 60 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Percentage change in total energy supply relative to the previous year.