Installed solar pv capacity in Tonga
Tonga: Installed solar pv capacity was 0.0158 in 2025. ◆ Volatile
Installed solar pv capacity in Tonga, 2000–2025
Source: Our World in Data.
Analysis
In 2025, installed solar pv capacity in Tonga stood at 0.0158. That is the highest value across all 26 years on record.
That represents a change of up 1.5% on the previous year and up 320.5% over ten years.
Over the whole period, installed solar pv capacity in Tonga peaked at 0.0158 in 2025 and was at its lowest, 0.0001, in 2000.
Tonga ranks 166th of 218 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Installed solar pv capacity in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 2000 | 0.0001 | — |
| 2001 | 0.0001 | +0.0% |
| 2002 | 0.0001 | +47.4% |
| 2003 | 0.0001 | +0.0% |
| 2004 | 0.0001 | +0.0% |
| 2005 | 0.0001 | +0.0% |
| 2006 | 0.0001 | +32.1% |
| 2007 | 0.0001 | +0.0% |
| 2008 | 0.0001 | +9.9% |
| 2009 | 0.0001 | +7.4% |
| 2010 | 0.0001 | +0.0% |
| 2011 | 0.0003 | +137.4% |
| 2012 | 0.002 | +543.7% |
| 2013 | 0.0027 | +35.3% |
| 2014 | 0.0027 | +0.2% |
| 2015 | 0.0037 | +38.2% |
| 2016 | 0.0045 | +21.0% |
| 2017 | 0.0067 | +47.8% |
| 2018 | 0.007 | +4.6% |
| 2019 | 0.007 | +0.0% |
| 2020 | 0.007 | +0.0% |
| 2021 | 0.007 | +0.0% |
| 2022 | 0.0143 | +104.0% |
| 2023 | 0.0151 | +5.6% |
| 2024 | 0.0155 | +2.9% |
| 2025 | 0.0158 | +1.5% |
Tonga compared with similar countries
- Tonga's 0.0158 is below the median for upper middle income countries, which is 0.3169, 5% of the median. (57 countries reporting)
- Tonga's 0.0158 is below the median for East Asia & Pacific, which is 0.1563, 10% of the median. (35 countries reporting)
Biggest year-on-year movements
Years where Installed solar pv capacity in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2012 | +543.7% | 0.0003 | 0.002 |
| 2011 | +137.4% | 0.0001 | 0.0003 |
| 2022 | +104.0% | 0.007 | 0.0143 |
| 2017 | +47.8% | 0.0045 | 0.0067 |
| 2002 | +47.4% | 0.0001 | 0.0001 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0.0001 | 0.0001 | 0.0001 | 10 |
| 2010s | 0.0037 | 0.0001 | 0.007 | 10 |
| 2020s | 0.0125 | 0.007 | 0.0158 | 6 |
Countries ranked near Tonga
- 163 Sierra Leone 0.0174 compare
- 164 Guinea 0.0173 compare
- 165 Saint Martin (French Part) 0.0171 compare
- 167 Samoa 0.0157 compare
- 168 Antigua and Barbuda 0.0156 compare
- 169 Rwanda 0.0154 compare
More energy & mining data for Tonga
- Fuel imports 18.7% (2025)
- Ores and metals imports 0.8% (2025)
- Fuel exports 0.0% (2025)
- Ores and metals exports 0.7% (2025)
- Gas production 0 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 0 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 0 terawatt-hours (2024)
- Gas production per person 0 kilowatt-hours per person (2024)
- Fossil fuel production by fuel, per capita 0 terawatt-hours per person (2024)
- Fossil fuel production by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
Frequently asked questions
- What is installed solar pv capacity in Tonga?
- Installed solar pv capacity in Tonga was 0.0158 in 2025, according to Our World in Data.
- What is the highest installed solar pv capacity recorded in Tonga?
- The highest recorded value was 0.0158 in 2025.
- What is the lowest installed solar pv capacity recorded in Tonga?
- The lowest recorded value was 0.0001 in 2000.
- How does Tonga rank for installed solar pv capacity?
- Tonga ranks 166th out of 218 countries with data for 2025.
- Is installed solar pv capacity rising or falling in Tonga?
- Over the last ten years it is up 320.5%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from Our World in Data, published as part of Installed solar pv capacity. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 26 observations, free to reuse under CC BY 4.0 (Our World in Data).