Annual change in primary energy use in Bulgaria
Bulgaria: Annual change in primary energy use was 3.88 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
3.88 terawatt-hours
Change on year
up 231.2%
World rank
49th
of 219 countries
All-time high
24.87 terawatt-hours
in 1975
All-time low
-63.34 terawatt-hours
in 1991
Years of data
60
1966–2025
Annual change in primary energy use in Bulgaria, 1966–2025
Source: Energy Institute – Statistical Review of World Energy (2026); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
Bulgaria recorded 3.88 terawatt-hours for annual change in primary energy use in 2025.
The figure is up 231.2% on the previous year and down 65.0% over ten years.
Over the whole period, annual change in primary energy use in Bulgaria peaked at 24.87 terawatt-hours in 1975 and was at its lowest, -63.34 terawatt-hours, in 1991.
That places Bulgaria 49th out of 219 countries with data for 2025, putting it in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Annual change in primary energy use in Bulgaria, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1966 | 8.62 terawatt-hours | — |
| 1967 | 20.75 terawatt-hours | +140.7% |
| 1968 | 19 terawatt-hours | -8.4% |
| 1969 | 18.09 terawatt-hours | -4.8% |
| 1970 | 22.68 terawatt-hours | +25.4% |
| 1971 | 8.6 terawatt-hours | -62.1% |
| 1972 | 6.47 terawatt-hours | -24.8% |
| 1973 | 7.83 terawatt-hours | +21.0% |
| 1974 | 8.09 terawatt-hours | +3.4% |
| 1975 | 24.87 terawatt-hours | +207.2% |
| 1976 | 15.18 terawatt-hours | -39.0% |
| 1977 | 14.17 terawatt-hours | -6.7% |
| 1978 | 11.71 terawatt-hours | -17.3% |
| 1979 | 10.9 terawatt-hours | -7.0% |
| 1980 | 16.95 terawatt-hours | +55.5% |
| 1981 | -4.2 terawatt-hours | -124.8% |
| 1982 | 9.52 terawatt-hours | -326.5% |
| 1983 | 2.01 terawatt-hours | -78.9% |
| 1984 | -1.72 terawatt-hours | -185.3% |
| 1985 | -0.4917 terawatt-hours | -71.4% |
| 1986 | 6.38 terawatt-hours | -1396.9% |
| 1987 | 2.32 terawatt-hours | -63.7% |
| 1988 | 8.65 terawatt-hours | +273.2% |
| 1989 | -3.55 terawatt-hours | -141.0% |
| 1990 | -24.78 terawatt-hours | +598.4% |
| 1991 | -63.34 terawatt-hours | +155.6% |
| 1992 | -15.11 terawatt-hours | -76.2% |
| 1993 | 17.2 terawatt-hours | -213.9% |
| 1994 | -8.84 terawatt-hours | -151.4% |
| 1995 | 17.77 terawatt-hours | -301.1% |
| 1996 | -1.99 terawatt-hours | -111.2% |
| 1997 | -14.5 terawatt-hours | +628.1% |
| 1998 | -10.72 terawatt-hours | -26.1% |
| 1999 | -29.56 terawatt-hours | +175.7% |
| 2000 | 0.7741 terawatt-hours | -102.6% |
| 2001 | 9.77 terawatt-hours | +1161.5% |
| 2002 | -7.08 terawatt-hours | -172.5% |
| 2003 | 5.52 terawatt-hours | -177.9% |
| 2004 | -7.47 terawatt-hours | -235.4% |
| 2005 | 16.88 terawatt-hours | -325.9% |
| 2006 | 5.39 terawatt-hours | -68.0% |
| 2007 | -6.71 terawatt-hours | -224.4% |
| 2008 | -1.82 terawatt-hours | -73.0% |
| 2009 | -29.34 terawatt-hours | +1516.2% |
| 2010 | 6.02 terawatt-hours | -120.5% |
| 2011 | 17.22 terawatt-hours | +185.9% |
| 2012 | -13.41 terawatt-hours | -177.9% |
| 2013 | -18.46 terawatt-hours | +37.7% |
| 2014 | 13.83 terawatt-hours | -174.9% |
| 2015 | 11.07 terawatt-hours | -20.0% |
| 2016 | -8.01 terawatt-hours | -172.4% |
| 2017 | 6.88 terawatt-hours | -185.8% |
| 2018 | -2.36 terawatt-hours | -134.3% |
| 2019 | -3.35 terawatt-hours | +42.4% |
| 2020 | -16.08 terawatt-hours | +379.4% |
| 2021 | 23.34 terawatt-hours | -245.2% |
| 2022 | 8.29 terawatt-hours | -64.5% |
| 2023 | -33.36 terawatt-hours | -502.2% |
| 2024 | -2.96 terawatt-hours | -91.1% |
| 2025 | 3.88 terawatt-hours | -231.2% |
Bulgaria compared with similar countries
- Bulgaria's 3.88 terawatt-hours is above the median for high income countries, which is 0.031 terawatt-hours, 124.8× the median. (75 countries reporting)
- Bulgaria's 3.88 terawatt-hours is above the median for Europe & Central Asia, which is 0.5721 terawatt-hours, 6.8× the median. (50 countries reporting)
Biggest year-on-year movements
Years where Annual change in primary energy use in Bulgaria changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2009 | -1516.2% | -1.82 terawatt-hours | -29.34 terawatt-hours |
| 1986 | +1396.9% | -0.4917 terawatt-hours | 6.38 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 16.61 terawatt-hours | 8.62 terawatt-hours | 20.75 terawatt-hours | 4 |
| 1970s | 13.05 terawatt-hours | 6.47 terawatt-hours | 24.87 terawatt-hours | 10 |
| 1980s | 3.59 terawatt-hours | -4.2 terawatt-hours | 16.95 terawatt-hours | 10 |
| 1990s | -13.39 terawatt-hours | -63.34 terawatt-hours | 17.77 terawatt-hours | 10 |
| 2000s | -1.41 terawatt-hours | -29.34 terawatt-hours | 16.88 terawatt-hours | 10 |
| 2010s | 0.9414 terawatt-hours | -18.46 terawatt-hours | 17.22 terawatt-hours | 10 |
| 2020s | -2.81 terawatt-hours | -33.36 terawatt-hours | 23.34 terawatt-hours | 6 |
Countries ranked near Bulgaria
More energy & mining data for Bulgaria
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate 2.05 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Coal production, per capita 0 terawatt-hours per person (2025)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0 terawatt-hours per person (2025)
- Fuel imports 12.3% (2024)
- Ores and metals imports 9.8% (2024)
Frequently asked questions
- What is annual change in primary energy use in Bulgaria?
- Annual change in primary energy use in Bulgaria was 3.88 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026); U.S. Energy Information Administration (2026) – with major processing by Our World in Data.
- What is the highest annual change in primary energy use recorded in Bulgaria?
- The highest recorded value was 24.87 terawatt-hours in 1975.
- What is the lowest annual change in primary energy use recorded in Bulgaria?
- The lowest recorded value was -63.34 terawatt-hours in 1991.
- How does Bulgaria rank for annual change in primary energy use?
- Bulgaria ranks 49th out of 219 countries with data for 2025.
- Is annual change in primary energy use rising or falling in Bulgaria?
- Over the last ten years it is down 65.0%. 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); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as part of Annual change in primary energy use. 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
Change in total energy supply relative to the previous year, measured in terawatt-hours.