Carbon intensity of energy in Tonga
Tonga: Carbon intensity of energy was 165.46 grams of CO₂ per kilowatt-hour in 2024. ▼ Falling
Carbon intensity of energy in Tonga, 1980–2024
Source: Global Carbon Budget (2025) and other sources – with major processing by Our World in Data. Measured in grams of CO₂ per kilowatt-hour.
Analysis
Tonga recorded 165.46 grams of CO₂ per kilowatt-hour for carbon intensity of energy in 2024.
The figure is down 3.8% on the previous year and up 27.8% over ten years.
Over the whole period, carbon intensity of energy in Tonga peaked at 415.35 grams of CO₂ per kilowatt-hour in 1986 and was at its lowest, 129.49 grams of CO₂ per kilowatt-hour, in 2014.
That places Tonga 163rd out of 204 countries with data for 2024, putting it in the bottom quarter.
The long-run direction has been consistently falling across the 45 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 262.36 grams of CO₂ per kilowatt-hour | 177.21 grams of CO₂ per kilowatt-hour | 415.35 grams of CO₂ per kilowatt-hour | 10 |
| 1990s | 189.34 grams of CO₂ per kilowatt-hour | 145.6 grams of CO₂ per kilowatt-hour | 222.61 grams of CO₂ per kilowatt-hour | 10 |
| 2000s | 220.25 grams of CO₂ per kilowatt-hour | 196.5 grams of CO₂ per kilowatt-hour | 232.61 grams of CO₂ per kilowatt-hour | 10 |
| 2010s | 157.29 grams of CO₂ per kilowatt-hour | 129.49 grams of CO₂ per kilowatt-hour | 209.97 grams of CO₂ per kilowatt-hour | 10 |
| 2020s | 176.06 grams of CO₂ per kilowatt-hour | 165.46 grams of CO₂ per kilowatt-hour | 193.94 grams of CO₂ per kilowatt-hour | 5 |
Countries ranked near Tonga
- 160 Samoa 168.83 grams of CO₂ per kilowatt-hour compare
- 161 Bulgaria 166.84 grams of CO₂ per kilowatt-hour compare
- 162 Portugal 165.7 grams of CO₂ per kilowatt-hour compare
- 164 Georgia 164.64 grams of CO₂ per kilowatt-hour compare
- 165 Yemen 164.34 grams of CO₂ per kilowatt-hour compare
- 166 Slovakia 163.26 grams of CO₂ per kilowatt-hour compare
More climate change data for Tonga
- Share of global CO₂ emissions and population 0.0% (2100)
- Population growth -0.4% (2025)
- Population, total 103,742 (2025)
- Urban population growth -0.4% (2025)
- Urban population 21,948 (2025)
- Urban population 21.2% (2025)
- CO₂ emissions per capita vs. GDP per capita 1.46 tonnes per person (2024)
- Cumulative CO₂ emissions 4.92 million tonnes (2024)
- CO₂ emissions per capita 1.46 tonnes per person (2024)
- CO₂ emissions per capita vs. share of electricity generation from renewables 1.46 tonnes per person (2024)
Frequently asked questions
- What is carbon intensity of energy in Tonga?
- Carbon intensity of energy in Tonga was 165.46 grams of CO₂ per kilowatt-hour in 2024, according to Global Carbon Budget (2025) and other sources – with major processing by Our World in Data.
- What is the highest carbon intensity of energy recorded in Tonga?
- The highest recorded value was 415.35 grams of CO₂ per kilowatt-hour in 1986.
- What is the lowest carbon intensity of energy recorded in Tonga?
- The lowest recorded value was 129.49 grams of CO₂ per kilowatt-hour in 2014.
- How does Tonga rank for carbon intensity of energy?
- Tonga ranks 163rd out of 204 countries with data for 2024.
- Is carbon intensity of energy rising or falling in Tonga?
- Over the last ten years it is up 27.8%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from Global Carbon Budget (2025) and other sources – with major processing by Our World in Data, published as part of Carbon intensity of energy. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Fossil carbon dioxide (CO₂) emissions per unit of total energy supply, measured in grams of CO₂ per kilowatt-hour.