Sri Lanka vs Thailand: Hydropower generation by region
Sri Lanka
7.95 terawatt-hours
in 2025
Thailand
7.83 terawatt-hours
in 2025
Sri Lanka rank
39th
Thailand rank
40th
Hydropower generation by region over time
- Sri Lanka
- Thailand
How they compare
Sri Lanka currently reports 7.95 terawatt-hours against 7.83 terawatt-hours in Thailand, a difference of 0.12 terawatt-hours.
The two have swapped places 15 times across 61 shared years of data; in 1965 it was Thailand ahead.
Sri Lanka ranks 39th and Thailand ranks 40th of 79 countries.
Across the 7 decades both report, Sri Lanka averaged higher in 1 and Thailand in 6.
Head to head by decade
| Decade | Sri Lanka | Thailand | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.4394 terawatt-hours | 1.14 terawatt-hours | 0.7054 terawatt-hours | Thailand |
| 1970s | 1.03 terawatt-hours | 2.56 terawatt-hours | 1.52 terawatt-hours | Thailand |
| 1980s | 2.06 terawatt-hours | 3.83 terawatt-hours | 1.77 terawatt-hours | Thailand |
| 1990s | 3.64 terawatt-hours | 5.1 terawatt-hours | 1.46 terawatt-hours | Thailand |
| 2000s | 3.54 terawatt-hours | 6.8 terawatt-hours | 3.26 terawatt-hours | Thailand |
| 2010s | 5.05 terawatt-hours | 5.89 terawatt-hours | 0.8391 terawatt-hours | Thailand |
| 2020s | 6.58 terawatt-hours | 6.23 terawatt-hours | 0.3593 terawatt-hours | Sri Lanka |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher hydropower generation by region, Sri Lanka or Thailand?
- Sri Lanka, at 7.95 terawatt-hours against 7.83 terawatt-hours in Thailand as of 2025.
- What is the difference in hydropower generation by region between Sri Lanka and Thailand?
- 0.12 terawatt-hours, with Sri Lanka ahead.
- How many years of comparable data are there for Sri Lanka and Thailand?
- 61 years are reported by both, from 1965 to 2025.
- How do Sri Lanka and Thailand rank globally for hydropower generation by region?
- Sri Lanka ranks 39th and Thailand ranks 40th of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Hydropower generation by region. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Figures are based on gross primary hydroelectric generation and do not account for cross-border electricity supply.