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) – 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 39th out of 78 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.
Year-to-year percentage change in primary energy use by source in Bulgaria, year by year
| Year | % | Change |
|---|---|---|
| 2008 | 178.3% | — |
| 2009 | 1,856.3% | +940.9% |
| 2010 | 355.0% | -80.9% |
| 2011 | 578.5% | +63.0% |
| 2012 | 672.0% | +16.2% |
| 2013 | 78.8% | -88.3% |
| 2014 | -9.7% | -112.3% |
| 2015 | 9.9% | -202.3% |
| 2016 | 0.5% | -95.4% |
| 2017 | 1.1% | +135.6% |
| 2018 | -4.3% | -497.5% |
| 2019 | 5.5% | -229.3% |
| 2020 | 3.6% | -34.6% |
| 2021 | -0.1% | -104.0% |
| 2022 | 42.8% | -29702.8% |
| 2023 | 68.1% | +59.3% |
| 2024 | 55.9% | -18.0% |
| 2025 | 24.4% | -56.4% |
Bulgaria compared with similar countries
- Bulgaria's 24.4% is above the median for high income countries, which is 23.8%, 1.0× the median. (46 countries reporting)
- Bulgaria's 24.4% is above the median for Europe & Central Asia, which is 21.0%, 1.2× the median. (38 countries reporting)
Biggest year-on-year movements
Years where Year-to-year percentage 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 | +29702.8% | -0.1% | 42.8% |
| 2009 | +940.9% | 178.3% | 1,856.3% |
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
- 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 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) – 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 39th out of 78 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) – 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.