Getting electricity: Reliability of supply and transparency of tariff in Tonga
Tonga: Getting electricity: Reliability of supply and transparency of tariff was 3 DB16-20 methodology in 2019. ▬ Flat
Getting electricity: Reliability of supply and transparency of tariff in Tonga, 2014–2019
Source: World Bank. Measured in DB16-20 methodology.
Analysis
Tonga recorded 3 DB16-20 methodology for getting electricity: reliability of supply and transparency of tariff in 2019. That is the highest value across all 6 years on record.
Compared with earlier readings it is unchanged over ten years.
That places Tonga 125th out of 187 countries with data for 2019, putting it in the middle of the range.
Getting electricity: Reliability of supply and transparency of tariff in Tonga, year by year
| Year | DB16-20 methodology | Change |
|---|---|---|
| 2014 | 3 DB16-20 methodology | — |
| 2015 | 3 DB16-20 methodology | +0.0% |
| 2016 | 3 DB16-20 methodology | +0.0% |
| 2017 | 3 DB16-20 methodology | +0.0% |
| 2018 | 3 DB16-20 methodology | +0.0% |
| 2019 | 3 DB16-20 methodology | +0.0% |
Countries ranked near Tonga
- 125 Cambodia 3 DB16-20 methodology compare
- 125 Gabon 3 DB16-20 methodology compare
- 125 Grenada 3 DB16-20 methodology compare
- 125 Lao People's Democratic Republic 3 DB16-20 methodology compare
- 125 Mongolia 3 DB16-20 methodology compare
- 125 Paraguay 3 DB16-20 methodology compare
- 125 Puerto Rico 3 DB16-20 methodology compare
- 125 Seychelles 3 DB16-20 methodology compare
- 125 Togo 3 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: reliability of supply and transparency of tariff in Tonga?
- Getting electricity: reliability of supply and transparency of tariff in Tonga was 3 DB16-20 methodology in 2019, according to the World Bank.
- What is the highest getting electricity: reliability of supply and transparency of tariff recorded in Tonga?
- The highest recorded value was 3 DB16-20 methodology in 2014.
- What is the lowest getting electricity: reliability of supply and transparency of tariff recorded in Tonga?
- The lowest recorded value was 3 DB16-20 methodology in 2014.
- How does Tonga rank for getting electricity: reliability of supply and transparency of tariff?
- Tonga ranks 125th out of 187 countries with data for 2019.
- Is getting electricity: reliability of supply and transparency of tariff rising or falling in Tonga?
- Over the last ten years it is unchanged. The long-run trend across the full record is flat.
- Where does this Tonga data come from?
- The figures come from the World Bank, published as part of Getting electricity: Reliability of supply and transparency of tariff index (0-8) (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 reliability of supply and transparency of tariff index is calculated on the basis of the following six components: (i) duration and frequency of power outages, (ii) tools to monitor power outages, (iii) tools to restore power supply, (iv) regulatory monitoring of utilities’ performance, (v) financial deterrents aimed at limiting outages, and (vi) transparency and accessibility of tariffs. An economy is eligible to obtain a score on the reliability of supply and transparency of tariffs index only if (i) the utility collects data on all types of outages (average total duration of outages per customer and the average number of outages per customer), including planned and unplanned outages, as well as load shedding, with the minimum outage time of not more than 5 minutes; and (ii) the SAIDI value is below a threshold of 100 hours and the SAIFI value is under 100 outages. The component indicator is computed based on the methodology in the DB16-20 studies.