Hydropower generation by region in Iran
Iran: Hydropower generation by region was 11.96 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
11.96 terawatt-hours
Change on year
down 36.6%
World rank
37th
of 80 countries
All-time high
33.87 terawatt-hours
in 2019
All-time low
1.72 terawatt-hours
in 1965
Years of data
61
1965–2025
Hydropower generation by region in Iran, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, hydropower generation by region in Iran stood at 11.96 terawatt-hours.
That represents a change of down 36.6% on the previous year and down 9.8% over ten years.
Over the whole period, hydropower generation by region in Iran peaked at 33.87 terawatt-hours in 2019 and was at its lowest, 1.72 terawatt-hours, in 1965.
Iran ranks 37th of 80 countries on this measure, 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 Iran, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 1.72 terawatt-hours | — |
| 1966 | 1.85 terawatt-hours | +7.5% |
| 1967 | 1.99 terawatt-hours | +7.7% |
| 1968 | 2.14 terawatt-hours | +7.6% |
| 1969 | 2.3 terawatt-hours | +7.6% |
| 1970 | 2.48 terawatt-hours | +7.7% |
| 1971 | 2.66 terawatt-hours | +7.5% |
| 1972 | 3.5 terawatt-hours | +31.3% |
| 1973 | 2.97 terawatt-hours | -15.3% |
| 1974 | 3.27 terawatt-hours | +10.1% |
| 1975 | 3.43 terawatt-hours | +5.0% |
| 1976 | 3.84 terawatt-hours | +11.9% |
| 1977 | 3.96 terawatt-hours | +3.3% |
| 1978 | 6.21 terawatt-hours | +56.6% |
| 1979 | 5.38 terawatt-hours | -13.3% |
| 1980 | 5.58 terawatt-hours | +3.7% |
| 1981 | 6.09 terawatt-hours | +9.2% |
| 1982 | 6.39 terawatt-hours | +4.9% |
| 1983 | 6.26 terawatt-hours | -2.1% |
| 1984 | 5.85 terawatt-hours | -6.5% |
| 1985 | 5.9 terawatt-hours | +0.8% |
| 1986 | 7.05 terawatt-hours | +19.5% |
| 1987 | 7.82 terawatt-hours | +10.9% |
| 1988 | 8.25 terawatt-hours | +5.5% |
| 1989 | 6.73 terawatt-hours | -18.4% |
| 1990 | 7.38 terawatt-hours | +9.6% |
| 1991 | 5.61 terawatt-hours | -24.0% |
| 1992 | 9.2 terawatt-hours | +64.2% |
| 1993 | 10.53 terawatt-hours | +14.4% |
| 1994 | 6.9 terawatt-hours | -34.5% |
| 1995 | 8.32 terawatt-hours | +20.7% |
| 1996 | 8.81 terawatt-hours | +5.9% |
| 1997 | 5.94 terawatt-hours | -32.6% |
| 1998 | 7.49 terawatt-hours | +26.0% |
| 1999 | 5.14 terawatt-hours | -31.3% |
| 2000 | 3.78 terawatt-hours | -26.5% |
| 2001 | 4.12 terawatt-hours | +9.0% |
| 2002 | 8.01 terawatt-hours | +94.4% |
| 2003 | 9.59 terawatt-hours | +19.7% |
| 2004 | 11.93 terawatt-hours | +24.5% |
| 2005 | 14.45 terawatt-hours | +21.1% |
| 2006 | 18.51 terawatt-hours | +28.1% |
| 2007 | 17.96 terawatt-hours | -3.0% |
| 2008 | 7.44 terawatt-hours | -58.6% |
| 2009 | 6.72 terawatt-hours | -9.6% |
| 2010 | 10.25 terawatt-hours | +52.5% |
| 2011 | 10.68 terawatt-hours | +4.2% |
| 2012 | 12.5 terawatt-hours | +17.0% |
| 2013 | 14.62 terawatt-hours | +17.0% |
| 2014 | 14.5 terawatt-hours | -0.8% |
| 2015 | 13.25 terawatt-hours | -8.6% |
| 2016 | 15.42 terawatt-hours | +16.4% |
| 2017 | 17.23 terawatt-hours | +11.7% |
| 2018 | 9.84 terawatt-hours | -42.9% |
| 2019 | 33.87 terawatt-hours | +244.2% |
| 2020 | 23.2 terawatt-hours | -31.5% |
| 2021 | 13.83 terawatt-hours | -40.4% |
| 2022 | 14 terawatt-hours | +1.3% |
| 2023 | 22.82 terawatt-hours | +62.9% |
| 2024 | 18.87 terawatt-hours | -17.3% |
| 2025 | 11.96 terawatt-hours | -36.6% |
Iran compared with similar countries
- Iran's 11.96 terawatt-hours is below the median for upper middle income countries, which is 12.78 terawatt-hours, 94% of the median. (24 countries reporting)
- Iran's 11.96 terawatt-hours is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.0237 terawatt-hours, 504.8× the median. (12 countries reporting)
Biggest year-on-year movements
Years where Hydropower generation by region in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2019 | +244.2% | 9.84 terawatt-hours | 33.87 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2 terawatt-hours | 1.72 terawatt-hours | 2.3 terawatt-hours | 5 |
| 1970s | 3.77 terawatt-hours | 2.48 terawatt-hours | 6.21 terawatt-hours | 10 |
| 1980s | 6.59 terawatt-hours | 5.58 terawatt-hours | 8.25 terawatt-hours | 10 |
| 1990s | 7.53 terawatt-hours | 5.14 terawatt-hours | 10.53 terawatt-hours | 10 |
| 2000s | 10.25 terawatt-hours | 3.78 terawatt-hours | 18.51 terawatt-hours | 10 |
| 2010s | 15.22 terawatt-hours | 9.84 terawatt-hours | 33.87 terawatt-hours | 10 |
| 2020s | 17.45 terawatt-hours | 11.96 terawatt-hours | 23.2 terawatt-hours | 6 |
Countries ranked near Iran
More economy & growth data for Iran
- Africa's Development Dynamics (AfDD) Table 04 - Annual real GDP 1.48 Percent per annum (2029)
- Africa's Development Dynamics (AfDD) Table 02 - Annual real GDP 2 Percent per annum (2029)
- Foreign direct investment, net outflows (BoP, current US$), gaps 89.42 million BoP, current US$ (2024)
- Foreign direct investment, net outflows (BoP, current US$), per unit 0.0002 BoP, current US$ per US$ of GDP (2024)
- Foreign direct investment, net outflows (BoP, current US$), per capita 0.9766 BoP, current US$ per person (2024)
- Foreign direct investment, net inflows (BoP, current US$), gaps filled 1.45 billion BoP, current US$ (2024)
- Foreign direct investment, net inflows (BoP, current US$), annual 1.88 % change on previous year (2024)
- Foreign direct investment, net inflows (BoP, current US$), per unit 0.003 BoP, current US$ per US$ of GDP (2024)
- Foreign direct investment, net inflows (BoP, current US$), per capita 15.83 BoP, current US$ per person (2024)
- Total reserves (includes gold, current US$), annual growth rate 130.68 % change on previous year (1982)
Frequently asked questions
- What is hydropower generation by region in Iran?
- Hydropower generation by region in Iran was 11.96 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 Iran?
- The highest recorded value was 33.87 terawatt-hours in 2019.
- What is the lowest hydropower generation by region recorded in Iran?
- The lowest recorded value was 1.72 terawatt-hours in 1965.
- How does Iran rank for hydropower generation by region?
- Iran ranks 37th out of 80 countries with data for 2025.
- Is hydropower generation by region rising or falling in Iran?
- Over the last ten years it is down 9.8%. The long-run trend across the full record is volatile.
- Where does this Iran 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.