Solar (photovoltaic) panels cumulative capacity in Tonga
Tonga: Solar (photovoltaic) panels cumulative capacity was 0.0149 gigawatts in 2024. ◆ Volatile
Solar (photovoltaic) panels cumulative capacity in Tonga, 2008–2024
Source: IRENA (2025) – processed by Our World in Data. Measured in gigawatts.
Analysis
The most recent figure for solar (photovoltaic) panels cumulative capacity in Tonga is 0.0149 gigawatts, measured in 2024. That is the highest value across all 17 years on record.
The figure is up 1.7% on the previous year and up 501.3% over ten years.
Over the whole period, solar (photovoltaic) panels cumulative capacity in Tonga peaked at 0.0149 gigawatts in 2024 and was at its lowest, 0 gigawatts, in 2008.
Tonga ranks 146th of 194 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0 gigawatts | 0 gigawatts | 0 gigawatts | 2 |
| 2010s | 0.0034 gigawatts | 0 gigawatts | 0.0066 gigawatts | 10 |
| 2020s | 0.0113 gigawatts | 0.0066 gigawatts | 0.0149 gigawatts | 5 |
Countries ranked near Tonga
More energy & mining data for Tonga
- Fuel imports 16.4% (2023)
- Ores and metals imports 0.6% (2023)
- Ores and metals exports 1.0% (2023)
- 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)
- Fuel exports 0.0% (2023)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 46.6% (2023)
- Share of dietary energy derived from protein vs. GDP per capita 16.9% (2023)
Frequently asked questions
- What is solar (photovoltaic) panels cumulative capacity in Tonga?
- Solar (photovoltaic) panels cumulative capacity in Tonga was 0.0149 gigawatts in 2024, according to IRENA (2025) – processed by Our World in Data.
- What is the highest solar (photovoltaic) panels cumulative capacity recorded in Tonga?
- The highest recorded value was 0.0149 gigawatts in 2024.
- What is the lowest solar (photovoltaic) panels cumulative capacity recorded in Tonga?
- The lowest recorded value was 0 gigawatts in 2008.
- How does Tonga rank for solar (photovoltaic) panels cumulative capacity?
- Tonga ranks 146th out of 194 countries with data for 2024.
- Is solar (photovoltaic) panels cumulative capacity rising or falling in Tonga?
- Over the last ten years it is up 501.3%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from IRENA (2025) – processed by Our World in Data, published as part of Solar (photovoltaic) panels cumulative capacity. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 17 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Solar photovoltaic (on-grid) electricity installed capacity, measured in gigawatts.