Bulgaria vs Samoa: Carbon intensity of energy

Bulgaria
166.84 grams of CO₂ per kilowatt-hour
in 2024
Samoa
168.83 grams of CO₂ per kilowatt-hour
in 2024
Bulgaria rank
161st
Samoa rank
160th

Carbon intensity of energy over time

  • Bulgaria
  • Samoa
100200300400196519942024

How they compare

Samoa currently reports 168.83 grams of CO₂ per kilowatt-hour against 166.84 grams of CO₂ per kilowatt-hour in Bulgaria, a difference of 1.99 grams of CO₂ per kilowatt-hour.

The two have swapped places 5 times across 45 shared years of data; in 1980 it was Bulgaria ahead.

Bulgaria ranks 161st and Samoa ranks 160th of 204 countries.

Bulgaria has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade Bulgaria Samoa Difference Ahead
1980s 256.8 grams of CO₂ per kilowatt-hour 160.25 grams of CO₂ per kilowatt-hour 96.55 grams of CO₂ per kilowatt-hour Bulgaria
1990s 223.17 grams of CO₂ per kilowatt-hour 201.92 grams of CO₂ per kilowatt-hour 21.25 grams of CO₂ per kilowatt-hour Bulgaria
2000s 223.02 grams of CO₂ per kilowatt-hour 165.56 grams of CO₂ per kilowatt-hour 57.47 grams of CO₂ per kilowatt-hour Bulgaria
2010s 220.04 grams of CO₂ per kilowatt-hour 166.71 grams of CO₂ per kilowatt-hour 53.34 grams of CO₂ per kilowatt-hour Bulgaria
2020s 187.39 grams of CO₂ per kilowatt-hour 178.64 grams of CO₂ per kilowatt-hour 8.74 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 Samoa?
Samoa, at 168.83 grams of CO₂ per kilowatt-hour against 166.84 grams of CO₂ per kilowatt-hour in Bulgaria as of 2024.
What is the difference in carbon intensity of energy between Bulgaria and Samoa?
1.99 grams of CO₂ per kilowatt-hour, with Samoa ahead.
How many years of comparable data are there for Bulgaria and Samoa?
45 years are reported by both, from 1980 to 2024.
How do Bulgaria and Samoa rank globally for carbon intensity of energy?
Bulgaria ranks 161st and Samoa ranks 160th 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.

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Bulgaria vs Samoa: Carbon intensity of energy. Statizoid, drawing on Global Carbon Budget (2025) and other sources – with major processing by Our World in Data. Retrieved 23 September 2026, from https://climate.statizoid.com/compare/co2-per-unit-energy/bulgaria/samoa/

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About this data

Indicator
Carbon intensity of energy
Unit
grams of CO₂ per kilowatt-hour
Source
Global Carbon Budget (2025) and other sources – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
204 places, 9,804 data points, 1965–2024
Last refreshed

Fossil carbon dioxide (CO₂) emissions per unit of total energy supply, measured in grams of CO₂ per kilowatt-hour.