Getting electricity: System average interruption duration in Tonga
Tonga: Getting electricity: System average interruption duration index was 12.31 DB16-20 methodology in 2019. ▼ Falling
Getting electricity: System average interruption duration index in Tonga, 2014–2019
Source: World Bank. Measured in DB16-20 methodology.
Analysis
The most recent figure for getting electricity: system average interruption duration index in Tonga is 12.31 DB16-20 methodology, measured in 2019. That is the lowest value across all 6 years on record.
Compared with earlier readings it is down 52.7% on the previous year and down 35.1% over ten years.
Tonga ranks 21st of 127 countries on this measure, in the top quarter.
Getting electricity: System average interruption duration index in Tonga, year by year
| Year | DB16-20 methodology | Change |
|---|---|---|
| 2014 | 18.97 DB16-20 methodology | — |
| 2015 | 17.64 DB16-20 methodology | -7.0% |
| 2016 | 18.75 DB16-20 methodology | +6.3% |
| 2017 | 18.75 DB16-20 methodology | +0.0% |
| 2018 | 26 DB16-20 methodology | +38.7% |
| 2019 | 12.31 DB16-20 methodology | -52.7% |
Tonga compared with similar countries
- Tonga's 12.31 DB16-20 methodology is above the median for upper middle income countries, which is 4.37 DB16-20 methodology, 2.8× the median. (44 countries reporting)
- Tonga's 12.31 DB16-20 methodology is above the median for East Asia & Pacific, which is 2.96 DB16-20 methodology, 4.2× the median. (22 countries reporting)
Countries ranked near Tonga
- 18 Cote d'Ivoire 14.42 DB16-20 methodology compare
- 19 Puerto Rico 14.35 DB16-20 methodology compare
- 20 Belize 14.18 DB16-20 methodology compare
- 22 Kenya 12 DB16-20 methodology compare
- 23 Armenia 10.86 DB16-20 methodology compare
- 24 Kosovo 10.42 DB16-20 methodology compare
- 24 Kosovo (UNSCR 1244) 10.42 DB16-20 methodology compare
More private sector data for Tonga
- Merchandise trade 39.5% (2025)
- Food imports 27.5% (2023)
- Manufactures imports 53.8% (2023)
- Merchandise imports 255.00 million current US$ (2025)
- Food exports 30.9% (2023)
- Manufactures exports 67.5% (2023)
- Merchandise exports 13.00 million current US$ (2025)
- Merchandise exports (current US$), per capita 125.31 current US$ per person (2025)
- Merchandise exports (current US$), per unit of GDP 0.0191 current US$ per US$ of GDP (2025)
- Merchandise exports (current US$), annual growth rate 44.44 % change on previous year (2025)
Frequently asked questions
- What is getting electricity: system average interruption duration index in Tonga?
- Getting electricity: system average interruption duration index in Tonga was 12.31 DB16-20 methodology in 2019, according to the World Bank.
- What is the highest getting electricity: system average interruption duration index recorded in Tonga?
- The highest recorded value was 26 DB16-20 methodology in 2018.
- What is the lowest getting electricity: system average interruption duration index recorded in Tonga?
- The lowest recorded value was 12.31 DB16-20 methodology in 2019.
- How does Tonga rank for getting electricity: system average interruption duration index?
- Tonga ranks 21st out of 127 countries with data for 2019.
- Is getting electricity: system average interruption duration index rising or falling in Tonga?
- Over the last ten years it is down 35.1%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from the World Bank, published as part of Getting electricity: System average interruption duration index (SAIDI) (DB16-20 methodology). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 6 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
The system average interruption duration index is the average total duration of outages (in hours) experienced by a customer in a year. The index is computed based on the methodology in the DB16-20 studies.