Carbon intensity of energy in Tonga
Tonga: Carbon intensity of energy was 165.46 grams of CO₂ per kilowatt-hour in 2024. ▼ Falling
Latest (2024)
165.46 grams of CO₂ per kilowatt-hour
Change on year
down 3.8%
World rank
163rd
of 204 countries
All-time high
415.35 grams of CO₂ per kilowatt-hour
in 1986
All-time low
129.49 grams of CO₂ per kilowatt-hour
in 2014
Years of data
45
1980–2024
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.
Carbon intensity of energy in Tonga, year by year
| Year | grams of CO₂ per kilowatt-hour | Change |
|---|---|---|
| 1980 | 326.56 grams of CO₂ per kilowatt-hour | — |
| 1981 | 257.99 grams of CO₂ per kilowatt-hour | -21.0% |
| 1982 | 238.15 grams of CO₂ per kilowatt-hour | -7.7% |
| 1983 | 257.99 grams of CO₂ per kilowatt-hour | +8.3% |
| 1984 | 257.29 grams of CO₂ per kilowatt-hour | -0.3% |
| 1985 | 257.99 grams of CO₂ per kilowatt-hour | +0.3% |
| 1986 | 415.35 grams of CO₂ per kilowatt-hour | +61.0% |
| 1987 | 216.12 grams of CO₂ per kilowatt-hour | -48.0% |
| 1988 | 218.92 grams of CO₂ per kilowatt-hour | +1.3% |
| 1989 | 177.21 grams of CO₂ per kilowatt-hour | -19.1% |
| 1990 | 205.2 grams of CO₂ per kilowatt-hour | +15.8% |
| 1991 | 220.38 grams of CO₂ per kilowatt-hour | +7.4% |
| 1992 | 193.15 grams of CO₂ per kilowatt-hour | -12.4% |
| 1993 | 222.61 grams of CO₂ per kilowatt-hour | +15.3% |
| 1994 | 170.92 grams of CO₂ per kilowatt-hour | -23.2% |
| 1995 | 204.86 grams of CO₂ per kilowatt-hour | +19.9% |
| 1996 | 145.6 grams of CO₂ per kilowatt-hour | -28.9% |
| 1997 | 172.26 grams of CO₂ per kilowatt-hour | +18.3% |
| 1998 | 162.91 grams of CO₂ per kilowatt-hour | -5.4% |
| 1999 | 195.48 grams of CO₂ per kilowatt-hour | +20.0% |
| 2000 | 225.78 grams of CO₂ per kilowatt-hour | +15.5% |
| 2001 | 232.1 grams of CO₂ per kilowatt-hour | +2.8% |
| 2002 | 222.62 grams of CO₂ per kilowatt-hour | -4.1% |
| 2003 | 222.38 grams of CO₂ per kilowatt-hour | -0.1% |
| 2004 | 232.61 grams of CO₂ per kilowatt-hour | +4.6% |
| 2005 | 218.44 grams of CO₂ per kilowatt-hour | -6.1% |
| 2006 | 219.25 grams of CO₂ per kilowatt-hour | +0.4% |
| 2007 | 226.83 grams of CO₂ per kilowatt-hour | +3.5% |
| 2008 | 196.5 grams of CO₂ per kilowatt-hour | -13.4% |
| 2009 | 206.01 grams of CO₂ per kilowatt-hour | +4.8% |
| 2010 | 209.97 grams of CO₂ per kilowatt-hour | +1.9% |
| 2011 | 204.02 grams of CO₂ per kilowatt-hour | -2.8% |
| 2012 | 156.96 grams of CO₂ per kilowatt-hour | -23.1% |
| 2013 | 135.74 grams of CO₂ per kilowatt-hour | -13.5% |
| 2014 | 129.49 grams of CO₂ per kilowatt-hour | -4.6% |
| 2015 | 129.84 grams of CO₂ per kilowatt-hour | +0.3% |
| 2016 | 146.22 grams of CO₂ per kilowatt-hour | +12.6% |
| 2017 | 134.62 grams of CO₂ per kilowatt-hour | -7.9% |
| 2018 | 144.2 grams of CO₂ per kilowatt-hour | +7.1% |
| 2019 | 181.88 grams of CO₂ per kilowatt-hour | +26.1% |
| 2020 | 174.74 grams of CO₂ per kilowatt-hour | -3.9% |
| 2021 | 174.12 grams of CO₂ per kilowatt-hour | -0.4% |
| 2022 | 193.94 grams of CO₂ per kilowatt-hour | +11.4% |
| 2023 | 172.05 grams of CO₂ per kilowatt-hour | -11.3% |
| 2024 | 165.46 grams of CO₂ per kilowatt-hour | -3.8% |
Tonga compared with similar countries
- Tonga's 165.46 grams of CO₂ per kilowatt-hour is below the median for upper middle income countries, which is 219.89 grams of CO₂ per kilowatt-hour, 75% of the median. (56 countries reporting)
- Tonga's 165.46 grams of CO₂ per kilowatt-hour is below the median for East Asia & Pacific, which is 214.52 grams of CO₂ per kilowatt-hour, 77% of the median. (31 countries reporting)
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
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 0 kg (2050)
- Emissions from livestock — Emissions (CO2eq) 138.67 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 28.3 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 110.37 kt (2050)
- Emissions from livestock — Emissions 0.1068 kt (2050)
- Emissions from livestock — Emissions 3.94 kt (2050)
- Emissions from crops — Emissions (CO2eq) 0 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 0 kt (2050)
- Emissions from crops — Emissions 0 kt (2050)
- Synthetic Fertilizers — Emissions (CO2eq) 0 kt (2050)
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.