Hydropower generation by region in Sri Lanka
Sri Lanka: Hydropower generation by region was 7.95 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
7.95 terawatt-hours
Change on year
up 16.2%
World rank
40th
of 80 countries
All-time high
7.95 terawatt-hours
in 2025
All-time low
0.365 terawatt-hours
in 1965
Years of data
61
1965–2025
Hydropower generation by region in Sri Lanka, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
Sri Lanka recorded 7.95 terawatt-hours for hydropower generation by region in 2025. That is the highest value across all 61 years on record.
Compared with earlier readings it is up 16.2% on the previous year and up 32.9% over ten years.
Over the whole period, hydropower generation by region in Sri Lanka peaked at 7.95 terawatt-hours in 2025 and was at its lowest, 0.365 terawatt-hours, in 1965.
That places Sri Lanka 40th out of 80 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Hydropower generation by region in Sri Lanka, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0.365 terawatt-hours | — |
| 1966 | 0.399 terawatt-hours | +9.3% |
| 1967 | 0.41 terawatt-hours | +2.8% |
| 1968 | 0.474 terawatt-hours | +15.6% |
| 1969 | 0.549 terawatt-hours | +15.8% |
| 1970 | 0.7403 terawatt-hours | +34.8% |
| 1971 | 0.8255 terawatt-hours | +11.5% |
| 1972 | 0.8471 terawatt-hours | +2.6% |
| 1973 | 0.6957 terawatt-hours | -17.9% |
| 1974 | 0.9976 terawatt-hours | +43.4% |
| 1975 | 1.08 terawatt-hours | +7.9% |
| 1976 | 1.11 terawatt-hours | +3.1% |
| 1977 | 1.21 terawatt-hours | +9.4% |
| 1978 | 1.37 terawatt-hours | +12.6% |
| 1979 | 1.46 terawatt-hours | +7.0% |
| 1980 | 1.48 terawatt-hours | +1.3% |
| 1981 | 1.57 terawatt-hours | +6.2% |
| 1982 | 1.61 terawatt-hours | +2.3% |
| 1983 | 1.22 terawatt-hours | -24.3% |
| 1984 | 2.09 terawatt-hours | +71.9% |
| 1985 | 2.4 terawatt-hours | +14.5% |
| 1986 | 2.65 terawatt-hours | +10.4% |
| 1987 | 2.18 terawatt-hours | -17.7% |
| 1988 | 2.6 terawatt-hours | +19.3% |
| 1989 | 2.8 terawatt-hours | +7.9% |
| 1990 | 3.14 terawatt-hours | +12.3% |
| 1991 | 3.12 terawatt-hours | -0.9% |
| 1992 | 2.9 terawatt-hours | -7.0% |
| 1993 | 3.8 terawatt-hours | +30.9% |
| 1994 | 4.09 terawatt-hours | +7.7% |
| 1995 | 4.51 terawatt-hours | +10.4% |
| 1996 | 3.25 terawatt-hours | -28.0% |
| 1997 | 3.45 terawatt-hours | +6.0% |
| 1998 | 3.91 terawatt-hours | +13.6% |
| 1999 | 4.18 terawatt-hours | +6.7% |
| 2000 | 3.2 terawatt-hours | -23.3% |
| 2001 | 3.12 terawatt-hours | -2.7% |
| 2002 | 2.7 terawatt-hours | -13.4% |
| 2003 | 3.32 terawatt-hours | +22.9% |
| 2004 | 2.97 terawatt-hours | -10.5% |
| 2005 | 3.46 terawatt-hours | +16.5% |
| 2006 | 4.64 terawatt-hours | +34.2% |
| 2007 | 3.96 terawatt-hours | -14.8% |
| 2008 | 4.14 terawatt-hours | +4.6% |
| 2009 | 3.89 terawatt-hours | -6.0% |
| 2010 | 5.64 terawatt-hours | +45.1% |
| 2011 | 4.58 terawatt-hours | -18.8% |
| 2012 | 3.3 terawatt-hours | -28.0% |
| 2013 | 6.93 terawatt-hours | +109.8% |
| 2014 | 4.56 terawatt-hours | -34.2% |
| 2015 | 5.98 terawatt-hours | +31.1% |
| 2016 | 4.23 terawatt-hours | -29.2% |
| 2017 | 4.03 terawatt-hours | -4.7% |
| 2018 | 6.41 terawatt-hours | +59.0% |
| 2019 | 4.81 terawatt-hours | -24.9% |
| 2020 | 4.98 terawatt-hours | +3.4% |
| 2021 | 7.23 terawatt-hours | +45.2% |
| 2022 | 6.76 terawatt-hours | -6.5% |
| 2023 | 5.76 terawatt-hours | -14.7% |
| 2024 | 6.84 terawatt-hours | +18.7% |
| 2025 | 7.95 terawatt-hours | +16.2% |
Sri Lanka compared with similar countries
- Sri Lanka's 7.95 terawatt-hours is below the median for upper middle income countries, which is 12.78 terawatt-hours, 62% of the median. (24 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.4394 terawatt-hours | 0.365 terawatt-hours | 0.549 terawatt-hours | 5 |
| 1970s | 1.03 terawatt-hours | 0.6957 terawatt-hours | 1.46 terawatt-hours | 10 |
| 1980s | 2.06 terawatt-hours | 1.22 terawatt-hours | 2.8 terawatt-hours | 10 |
| 1990s | 3.64 terawatt-hours | 2.9 terawatt-hours | 4.51 terawatt-hours | 10 |
| 2000s | 3.54 terawatt-hours | 2.7 terawatt-hours | 4.64 terawatt-hours | 10 |
| 2010s | 5.05 terawatt-hours | 3.3 terawatt-hours | 6.93 terawatt-hours | 10 |
| 2020s | 6.58 terawatt-hours | 4.98 terawatt-hours | 7.95 terawatt-hours | 6 |
Countries ranked near Sri Lanka
More energy & mining data for Sri Lanka
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Primary energy use, annual growth rate 4.83 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2024)
- Fuel imports 21.5% (2024)
Frequently asked questions
- What is hydropower generation by region in Sri Lanka?
- Hydropower generation by region in Sri Lanka was 7.95 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest hydropower generation by region recorded in Sri Lanka?
- The highest recorded value was 7.95 terawatt-hours in 2025.
- What is the lowest hydropower generation by region recorded in Sri Lanka?
- The lowest recorded value was 0.365 terawatt-hours in 1965.
- How does Sri Lanka rank for hydropower generation by region?
- Sri Lanka ranks 40th out of 80 countries with data for 2025.
- Is hydropower generation by region rising or falling in Sri Lanka?
- Over the last ten years it is up 32.9%. The long-run trend across the full record is volatile.
- Where does this Sri Lanka data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as part of Hydropower generation by region. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Figures are based on gross primary hydroelectric generation and do not account for cross-border electricity supply.