Share of primary energy from low-carbon energy in Bulgaria
Bulgaria: Share of primary energy from low-carbon energy was 33.5% in 2025. ◆ Volatile
Share of primary energy from low-carbon energy in Bulgaria, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Measured in %.
Analysis
The most recent figure for share of primary energy from low-carbon energy in Bulgaria is 33.5%, measured in 2025.
Compared with earlier readings it is down 1.7% on the previous year and up 26.4% over ten years.
Over the whole period, share of primary energy from low-carbon energy in Bulgaria peaked at 34.1% in 2024 and was at its lowest, 0.8%, in 1968.
That places Bulgaria 12th out of 80 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.
Share of primary energy from low-carbon energy in Bulgaria, year by year
| Year | % | Change |
|---|---|---|
| 1965 | 1.7% | — |
| 1966 | 1.6% | -6.5% |
| 1967 | 1.4% | -13.8% |
| 1968 | 0.8% | -42.9% |
| 1969 | 1.0% | +27.0% |
| 1970 | 1.0% | +4.1% |
| 1971 | 1.0% | -3.2% |
| 1972 | 1.0% | -6.3% |
| 1973 | 1.1% | +18.5% |
| 1974 | 2.1% | +83.8% |
| 1975 | 3.9% | +88.5% |
| 1976 | 6.5% | +67.6% |
| 1977 | 7.4% | +12.4% |
| 1978 | 6.9% | -6.3% |
| 1979 | 7.0% | +2.2% |
| 1980 | 6.8% | -3.6% |
| 1981 | 9.6% | +41.3% |
| 1982 | 10.6% | +10.7% |
| 1983 | 12.1% | +13.5% |
| 1984 | 12.5% | +3.4% |
| 1985 | 12.5% | +0.6% |
| 1986 | 11.4% | -9.2% |
| 1987 | 11.7% | +2.7% |
| 1988 | 14.5% | +24.1% |
| 1989 | 13.4% | -7.6% |
| 1990 | 14.2% | +5.9% |
| 1991 | 16.2% | +13.9% |
| 1992 | 15.0% | -7.2% |
| 1993 | 16.8% | +11.7% |
| 1994 | 18.8% | +12.0% |
| 1995 | 20.0% | +6.6% |
| 1996 | 21.4% | +6.7% |
| 1997 | 22.1% | +3.5% |
| 1998 | 22.2% | +0.3% |
| 1999 | 23.6% | +6.2% |
| 2000 | 26.8% | +13.5% |
| 2001 | 27.0% | +1.0% |
| 2002 | 29.0% | +7.5% |
| 2003 | 24.7% | -14.8% |
| 2004 | 25.0% | +1.1% |
| 2005 | 26.1% | +4.3% |
| 2006 | 26.5% | +1.7% |
| 2007 | 20.4% | -23.2% |
| 2008 | 22.0% | +8.3% |
| 2009 | 24.9% | +12.9% |
| 2010 | 25.2% | +1.4% |
| 2011 | 23.9% | -5.2% |
| 2012 | 25.7% | +7.5% |
| 2013 | 26.7% | +3.9% |
| 2014 | 27.7% | +3.8% |
| 2015 | 26.5% | -4.4% |
| 2016 | 27.5% | +3.5% |
| 2017 | 25.9% | -5.7% |
| 2018 | 29.6% | +14.4% |
| 2019 | 30.1% | +1.7% |
| 2020 | 32.6% | +8.1% |
| 2021 | 31.0% | -4.8% |
| 2022 | 29.3% | -5.5% |
| 2023 | 33.7% | +14.9% |
| 2024 | 34.1% | +1.3% |
| 2025 | 33.5% | -1.7% |
Bulgaria compared with similar countries
- Bulgaria's 33.5% is above the median for high income countries, which is 18.3%, 1.8× the median. (47 countries reporting)
- Bulgaria's 33.5% is above the median for Europe & Central Asia, which is 19.0%, 1.8× the median. (39 countries reporting)
Biggest year-on-year movements
Years where Share of primary energy from low-carbon energy 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 |
|---|---|---|---|
| 1975 | +88.5% | 2.1% | 3.9% |
| 1974 | +83.8% | 1.1% | 2.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 1.3% | 0.8% | 1.7% | 5 |
| 1970s | 3.8% | 1.0% | 7.4% | 10 |
| 1980s | 11.5% | 6.8% | 14.5% | 10 |
| 1990s | 19.0% | 14.2% | 23.6% | 10 |
| 2000s | 25.2% | 20.4% | 29.0% | 10 |
| 2010s | 26.9% | 23.9% | 30.1% | 10 |
| 2020s | 32.4% | 29.3% | 34.1% | 6 |
Countries ranked near Bulgaria
More climate change data for Bulgaria
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 176.16 million kg (2050)
- Emissions from livestock — Emissions (CO2eq) 2,923 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 704.34 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 2,219 kt (2050)
- Emissions from livestock — Emissions 2.66 kt (2050)
- Emissions from livestock — Emissions 79.24 kt (2050)
- Emissions from crops — Emissions (CO2eq) 1,439 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 1,346 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 92.96 kt (2050)
- Emissions from crops — Emissions 5.08 kt (2050)
Frequently asked questions
- What is share of primary energy from low-carbon energy in Bulgaria?
- Share of primary energy from low-carbon energy in Bulgaria was 33.5% in 2025, according to Energy Institute – Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data.
- What is the highest share of primary energy from low-carbon energy recorded in Bulgaria?
- The highest recorded value was 34.1% in 2024.
- What is the lowest share of primary energy from low-carbon energy recorded in Bulgaria?
- The lowest recorded value was 0.8% in 1968.
- How does Bulgaria rank for share of primary energy from low-carbon energy?
- Bulgaria ranks 12th out of 80 countries with data for 2025.
- Is share of primary energy from low-carbon energy rising or falling in Bulgaria?
- Over the last ten years it is up 26.4%. 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); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as part of Share of primary energy from low-carbon energy. Statizoid updates them automatically from the source API.
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CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured as a percentage of total energy supply.