Statizoid

Bulgaria vs Tonga: Carbon intensity of energy

Bulgaria
166.84 grams of CO₂ per kilowatt-hour
in 2024
Tonga
165.46 grams of CO₂ per kilowatt-hour
in 2024
Bulgaria rank
161st
Tonga rank
163rd

Carbon intensity of energy over time

  • Bulgaria
  • Tonga
100200300400196519942024

How they compare

Bulgaria currently reports 166.84 grams of CO₂ per kilowatt-hour against 165.46 grams of CO₂ per kilowatt-hour in Tonga, a difference of 1.38 grams of CO₂ per kilowatt-hour.

The two have swapped places 9 times across 45 shared years of data; in 1980 it was Tonga ahead.

Bulgaria ranks 161st and Tonga ranks 163rd of 204 countries.

Individual pages

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.