Tonga Electricity: Generation Mix, Demand and Emissions
Tonga generated 70.0 GWh of electricity in 2024, according to Ember. Other fossil was the largest source at 85.7%, followed by solar (14.3%). Demand was 70.0 GWh and each kWh generated emitted 571 gCO2/kWh. These are annual statistics for 2024; they are compiled from national sources and are not real time.
Key Facts
- Tonga generated 70.0 GWh of electricity in 2024.
- Other fossil supplied 85.7% of Tonga's electricity in 2024.
- Solar supplied 14.3% of Tonga's electricity in 2024.
- Low carbon sources (nuclear and renewables) supplied 14.3% of Tonga's generation in 2024.
- The carbon intensity of Tonga's electricity was 571 gCO2/kWh in 2024.
- Tonga's carbon intensity in 2024 was 12% lower than in 2000, when it was 650 gCO2/kWh.
- Tonga had the 193rd highest electricity demand among the 197 countries with Ember data for 2024.
Key Figures, 2024
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 70.0 GWh | 2024 · Ember |
| Electricity demand | 70.0 GWh | 2024 · Ember |
| Demand per person | 0.67 MWh | 2024 · Ember |
| Net imports | 0 TWh | 2024 · Ember |
| Carbon intensity | 571 gCO2/kWh | 2024 · Ember |
| Power sector emissions | 0.04 MtCO2 | 2024 · Ember |
| Demand rank (countries with 2024 data) | 193 of 197 | 2024 · Ember |
Generation Mix, 2024
| Source | Generation | Share |
|---|---|---|
| Other fossil | 60.0 GWh | 85.7% |
| Solar | 10.0 GWh | 14.3% |
Year by Year
Ember annual statistics, 2000 to 2024| Year | Other fossil | Solar |
|---|---|---|
| 2000 | 40.0 GWh | 0 TWh |
| 2001 | 40.0 GWh | 0 TWh |
| 2002 | 40.0 GWh | 0 TWh |
| 2003 | 40.0 GWh | 0 TWh |
| 2004 | 50.0 GWh | 0 TWh |
| 2005 | 50.0 GWh | 0 TWh |
| 2006 | 50.0 GWh | 0 TWh |
| 2007 | 50.0 GWh | 0 TWh |
| 2008 | 50.0 GWh | 0 TWh |
| 2009 | 50.0 GWh | 0 TWh |
| 2010 | 50.0 GWh | 0 TWh |
| 2011 | 50.0 GWh | 0 TWh |
| 2012 | 50.0 GWh | 0 TWh |
| 2013 | 50.0 GWh | 0 TWh |
| 2014 | 50.0 GWh | 0 TWh |
| 2015 | 50.0 GWh | 0 TWh |
| 2016 | 60.0 GWh | 0 TWh |
| 2017 | 60.0 GWh | 10.0 GWh |
| 2018 | 60.0 GWh | 10.0 GWh |
| 2019 | 60.0 GWh | 10.0 GWh |
| 2020 | 60.0 GWh | 10.0 GWh |
| 2021 | 60.0 GWh | 10.0 GWh |
| 2022 | 70.0 GWh | 10.0 GWh |
| 2023 | 60.0 GWh | 10.0 GWh |
| 2024 | 60.0 GWh | 10.0 GWh |
| Year | Generation | Demand | Carbon intensity |
|---|---|---|---|
| 2024 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2023 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2022 | 80.0 GWh | 80.0 GWh | 588 gCO2/kWh |
| 2021 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2020 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2019 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2018 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2017 | 70.0 GWh | 70.0 GWh | 571 gCO2/kWh |
| 2016 | 60.0 GWh | 60.0 GWh | 650 gCO2/kWh |
| 2015 | 50.0 GWh | 50.0 GWh | 660 gCO2/kWh |
Full year by year history for Tonga, 2000 to 2024
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2024.
Tonga Electricity FAQ
What is the main source of electricity in Tonga?
Other fossil was the largest source of electricity in Tonga in 2024, supplying 85.7% of generation, followed by solar (14.3%). Figures are Ember annual statistics.
How much electricity does Tonga use?
Tonga used 70.0 GWh of electricity in 2024, about 0.67 MWh per person.
How clean is Tonga's electricity?
Generating a kilowatt hour of electricity in Tonga emitted 571 gCO2/kWh in 2024, and low carbon sources supplied 14.3% of generation. That is 21% above the world average of 472 gCO2/kWh.