Bulgaria vs Portugal: Carbon intensity of energy
Bulgaria
166.84 grams of CO₂ per kilowatt-hour
in 2024
Portugal
165.7 grams of CO₂ per kilowatt-hour
in 2024
Bulgaria rank
161st
Portugal rank
162nd
Carbon intensity of energy over time
- Bulgaria
- Portugal
How they compare
Bulgaria currently reports 166.84 grams of CO₂ per kilowatt-hour against 165.7 grams of CO₂ per kilowatt-hour in Portugal, a difference of 1.14 grams of CO₂ per kilowatt-hour.
The two have swapped places 4 times across 60 shared years of data; in 1965 it was Bulgaria ahead.
Bulgaria ranks 161st and Portugal ranks 162nd of 204 countries.
Across the 7 decades both report, Bulgaria averaged higher in 5 and Portugal in 2.
Head to head by decade
| Decade | Bulgaria | Portugal | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 378.78 grams of CO₂ per kilowatt-hour | 269.75 grams of CO₂ per kilowatt-hour | 109.02 grams of CO₂ per kilowatt-hour | Bulgaria |
| 1970s | 282.7 grams of CO₂ per kilowatt-hour | 228 grams of CO₂ per kilowatt-hour | 54.7 grams of CO₂ per kilowatt-hour | Bulgaria |
| 1980s | 256.8 grams of CO₂ per kilowatt-hour | 223.05 grams of CO₂ per kilowatt-hour | 33.75 grams of CO₂ per kilowatt-hour | Bulgaria |
| 1990s | 223.17 grams of CO₂ per kilowatt-hour | 240.7 grams of CO₂ per kilowatt-hour | 17.53 grams of CO₂ per kilowatt-hour | Portugal |
| 2000s | 223.02 grams of CO₂ per kilowatt-hour | 236.2 grams of CO₂ per kilowatt-hour | 13.18 grams of CO₂ per kilowatt-hour | Portugal |
| 2010s | 220.04 grams of CO₂ per kilowatt-hour | 199.33 grams of CO₂ per kilowatt-hour | 20.72 grams of CO₂ per kilowatt-hour | Bulgaria |
| 2020s | 187.39 grams of CO₂ per kilowatt-hour | 177.09 grams of CO₂ per kilowatt-hour | 10.3 grams of CO₂ per kilowatt-hour | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher carbon intensity of energy, Bulgaria or Portugal?
- Bulgaria, at 166.84 grams of CO₂ per kilowatt-hour against 165.7 grams of CO₂ per kilowatt-hour in Portugal as of 2024.
- What is the difference in carbon intensity of energy between Bulgaria and Portugal?
- 1.14 grams of CO₂ per kilowatt-hour, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Portugal?
- 60 years are reported by both, from 1965 to 2024.
- How do Bulgaria and Portugal rank globally for carbon intensity of energy?
- Bulgaria ranks 161st and Portugal ranks 162nd of 204 countries.
- Where does this data come from?
- Global Carbon Budget (2025) and other sources – with major processing by Our World in Data, published as Carbon intensity of energy. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Fossil carbon dioxide (CO₂) emissions per unit of total energy supply, measured in grams of CO₂ per kilowatt-hour.