Year-to-year change in primary energy use by source in Bulgaria
Bulgaria: Year-to-year change in primary energy use by source was 1.34 terawatt-hours in 2025. ◆ Volatile
Year-to-year change in primary energy use by source in Bulgaria, 1966–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for year-to-year change in primary energy use by source in Bulgaria is 1.34 terawatt-hours, measured in 2025.
That represents a change of down 32.0% on the previous year and up 971.1% over ten years.
Over the whole period, year-to-year change in primary energy use by source in Bulgaria peaked at 1.97 terawatt-hours in 2024 and was at its lowest, -0.1353 terawatt-hours, in 2014.
Bulgaria ranks 29th of 80 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Year-to-year change in primary energy use by source in Bulgaria, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1966 | 0 terawatt-hours | — |
| 1967 | 0 terawatt-hours | — |
| 1968 | 0 terawatt-hours | — |
| 1969 | 0 terawatt-hours | — |
| 1970 | 0 terawatt-hours | — |
| 1971 | 0 terawatt-hours | — |
| 1972 | 0 terawatt-hours | — |
| 1973 | 0 terawatt-hours | — |
| 1974 | 0 terawatt-hours | — |
| 1975 | 0 terawatt-hours | — |
| 1976 | 0 terawatt-hours | — |
| 1977 | 0 terawatt-hours | — |
| 1978 | 0 terawatt-hours | — |
| 1979 | 0 terawatt-hours | — |
| 1980 | 0 terawatt-hours | — |
| 1981 | 0 terawatt-hours | — |
| 1982 | 0 terawatt-hours | — |
| 1983 | 0 terawatt-hours | — |
| 1984 | 0 terawatt-hours | — |
| 1985 | 0 terawatt-hours | — |
| 1986 | 0 terawatt-hours | — |
| 1987 | 0 terawatt-hours | — |
| 1988 | 0 terawatt-hours | — |
| 1989 | 0 terawatt-hours | — |
| 1990 | 0 terawatt-hours | — |
| 1991 | 0 terawatt-hours | — |
| 1992 | 0 terawatt-hours | — |
| 1993 | 0 terawatt-hours | — |
| 1994 | 0 terawatt-hours | — |
| 1995 | 0 terawatt-hours | — |
| 1996 | 0 terawatt-hours | — |
| 1997 | 0 terawatt-hours | — |
| 1998 | 0 terawatt-hours | — |
| 1999 | 0 terawatt-hours | — |
| 2000 | 0 terawatt-hours | — |
| 2001 | 0 terawatt-hours | — |
| 2002 | 0 terawatt-hours | — |
| 2003 | 0 terawatt-hours | — |
| 2004 | 0 terawatt-hours | — |
| 2005 | 0 terawatt-hours | — |
| 2006 | 0 terawatt-hours | — |
| 2007 | 0.0001 terawatt-hours | — |
| 2008 | 0.0001 terawatt-hours | +78.3% |
| 2009 | 0.0031 terawatt-hours | +2797.2% |
| 2010 | 0.0116 terawatt-hours | +274.1% |
| 2011 | 0.086 terawatt-hours | +641.5% |
| 2012 | 0.6778 terawatt-hours | +688.2% |
| 2013 | 0.6133 terawatt-hours | -9.5% |
| 2014 | -0.1353 terawatt-hours | -122.1% |
| 2015 | 0.125 terawatt-hours | -192.4% |
| 2016 | 0.0063 terawatt-hours | -94.9% |
| 2017 | 0.015 terawatt-hours | +136.7% |
| 2018 | -0.0602 terawatt-hours | -501.7% |
| 2019 | 0.0745 terawatt-hours | -223.8% |
| 2020 | 0.0514 terawatt-hours | -31.0% |
| 2021 | -0.0021 terawatt-hours | -104.1% |
| 2022 | 0.6272 terawatt-hours | -29659.9% |
| 2023 | 1.43 terawatt-hours | +127.5% |
| 2024 | 1.97 terawatt-hours | +38.0% |
| 2025 | 1.34 terawatt-hours | -32.0% |
Bulgaria compared with similar countries
- Bulgaria's 1.34 terawatt-hours is above the median for high income countries, which is 1.11 terawatt-hours, 1.2× the median. (47 countries reporting)
- Bulgaria's 1.34 terawatt-hours is above the median for Europe & Central Asia, which is 0.5816 terawatt-hours, 2.3× the median. (39 countries reporting)
Biggest year-on-year movements
Years where Year-to-year change in primary energy use by source 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 |
|---|---|---|---|
| 2022 | +29659.9% | -0.0021 terawatt-hours | 0.6272 terawatt-hours |
| 2009 | +2797.2% | 0.0001 terawatt-hours | 0.0031 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 4 |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 1980s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 1990s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 2000s | 0.0003 terawatt-hours | 0 terawatt-hours | 0.0031 terawatt-hours | 10 |
| 2010s | 0.1414 terawatt-hours | -0.1353 terawatt-hours | 0.6778 terawatt-hours | 10 |
| 2020s | 0.9018 terawatt-hours | -0.0021 terawatt-hours | 1.97 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)
- Primary energy use, per capita 0 terawatt-hours per person (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)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 12.3% (2024)
Frequently asked questions
- What is year-to-year change in primary energy use by source in Bulgaria?
- Year-to-year change in primary energy use by source in Bulgaria was 1.34 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest year-to-year change in primary energy use by source recorded in Bulgaria?
- The highest recorded value was 1.97 terawatt-hours in 2024.
- What is the lowest year-to-year change in primary energy use by source recorded in Bulgaria?
- The lowest recorded value was -0.1353 terawatt-hours in 2014.
- How does Bulgaria rank for year-to-year change in primary energy use by source?
- Bulgaria ranks 29th out of 80 countries with data for 2025.
- Is year-to-year change in primary energy use by source rising or falling in Bulgaria?
- Over the last ten years it is up 971.1%. 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) – with major processing by Our World in Data, published as part of Year-to-year change in primary energy use by source. Statizoid updates them automatically from the source API.
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About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.