Annual patents filed for renewable energy technologies in Bulgaria
Bulgaria: Annual patents filed for renewable energy technologies was 1 patents in 2024. ◆ Volatile
Annual patents filed for renewable energy technologies in Bulgaria, 2000–2024
Source: IRENA – INSPIRE Platform (2026) – with major processing by Our World in Data. Measured in patents.
Analysis
In 2024, annual patents filed for renewable energy technologies in Bulgaria stood at 1 patents. That is the lowest value across all 19 years on record.
The figure is down 50.0% on the previous year and down 75.0% over ten years.
Over the whole period, annual patents filed for renewable energy technologies in Bulgaria peaked at 6 patents in 2020 and was at its lowest, 1 patents, in 2002.
Bulgaria ranks 50th of 64 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Annual patents filed for renewable energy technologies in Bulgaria, year by year
| Year | patents | Change |
|---|---|---|
| 2000 | 2 patents | — |
| 2002 | 1 patents | -50.0% |
| 2003 | 3 patents | +200.0% |
| 2005 | 1 patents | -66.7% |
| 2007 | 2 patents | +100.0% |
| 2009 | 1 patents | -50.0% |
| 2010 | 1 patents | +0.0% |
| 2011 | 2 patents | +100.0% |
| 2012 | 4 patents | +100.0% |
| 2015 | 4 patents | +0.0% |
| 2016 | 3 patents | -25.0% |
| 2017 | 3 patents | +0.0% |
| 2018 | 5 patents | +66.7% |
| 2019 | 3 patents | -40.0% |
| 2020 | 6 patents | +100.0% |
| 2021 | 2 patents | -66.7% |
| 2022 | 1 patents | -50.0% |
| 2023 | 2 patents | +100.0% |
| 2024 | 1 patents | -50.0% |
Bulgaria compared with similar countries
- Bulgaria's 1 patents is below the median for high income countries, which is 3 patents, 33% of the median. (44 countries reporting)
- Bulgaria's 1 patents is below the median for Europe & Central Asia, which is 2 patents, 50% of the median. (35 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1.67 patents | 1 patents | 3 patents | 6 |
| 2010s | 3.12 patents | 1 patents | 5 patents | 8 |
| 2020s | 2.4 patents | 1 patents | 6 patents | 5 |
Countries ranked near Bulgaria
- 50 Colombia 1 patents compare
- 50 Costa Rica 1 patents compare
- 50 Croatia 1 patents compare
- 50 Cyprus 1 patents compare
- 50 Denmark 1 patents compare
- 50 Estonia 1 patents compare
- 50 Hungary 1 patents compare
- 50 India 1 patents compare
- 50 Ireland 1 patents compare
- 50 Serbia 1 patents compare
- 50 Singapore 1 patents compare
- 50 Sweden 1 patents compare
- 50 Tunisia 1 patents compare
- 50 Uruguay 1 patents compare
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 patents filed for renewable energy technologies in Bulgaria?
- Annual patents filed for renewable energy technologies in Bulgaria was 1 patents in 2024, according to IRENA – INSPIRE Platform (2026) – with major processing by Our World in Data.
- What is the highest annual patents filed for renewable energy technologies recorded in Bulgaria?
- The highest recorded value was 6 patents in 2020.
- What is the lowest annual patents filed for renewable energy technologies recorded in Bulgaria?
- The lowest recorded value was 1 patents in 2002.
- How does Bulgaria rank for annual patents filed for renewable energy technologies?
- Bulgaria ranks 50th out of 64 countries with data for 2024.
- Is annual patents filed for renewable energy technologies rising or falling in Bulgaria?
- Over the last ten years it is down 75.0%. The long-run trend across the full record is volatile.
- Where does this Bulgaria data come from?
- The figures come from IRENA – INSPIRE Platform (2026) – with major processing by Our World in Data, published as part of Annual patents filed for renewable energy technologies. Statizoid updates them automatically from the source API.
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CSV · JSON — 19 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Data only includes energy source technologies, and excludes technologies such as energy storage or transport. Figures in recent years are subject to a time lag; submitted patents may not yet be reflected in the data.