Annual change in primary energy from hydropower in Iran
Iran: Annual change in primary energy from hydropower was -6.92 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
-6.92 terawatt-hours
Change on year
down 75.4%
World rank
73rd
of 80 countries
All-time high
24.03 terawatt-hours
in 2019
All-time low
-23.2 terawatt-hours
in 2021
Years of data
60
1966–2025
Annual change in primary energy from hydropower in Iran, 1966–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for annual change in primary energy from hydropower in Iran is -6.92 terawatt-hours, measured in 2025.
Compared with earlier readings it is down 75.4% on the previous year and down 452.3% over ten years.
Over the whole period, annual change in primary energy from hydropower in Iran peaked at 24.03 terawatt-hours in 2019 and was at its lowest, -23.2 terawatt-hours, in 2021.
That places Iran 73rd out of 80 countries with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Annual change in primary energy from hydropower in Iran, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1966 | 0.1282 terawatt-hours | — |
| 1967 | 0.1414 terawatt-hours | +10.3% |
| 1968 | 0.1503 terawatt-hours | +6.3% |
| 1969 | 0.1635 terawatt-hours | +8.8% |
| 1970 | 0.1768 terawatt-hours | +8.1% |
| 1971 | 0.1856 terawatt-hours | +5.0% |
| 1972 | 0.8353 terawatt-hours | +350.0% |
| 1973 | -0.5347 terawatt-hours | -164.0% |
| 1974 | 0.3005 terawatt-hours | -156.2% |
| 1975 | 0.1635 terawatt-hours | -45.6% |
| 1976 | 0.4066 terawatt-hours | +148.6% |
| 1977 | 0.1282 terawatt-hours | -68.5% |
| 1978 | 2.25 terawatt-hours | +1651.7% |
| 1979 | -0.8264 terawatt-hours | -136.8% |
| 1980 | 0.1989 terawatt-hours | -124.1% |
| 1981 | 0.5127 terawatt-hours | +157.8% |
| 1982 | 0.3005 terawatt-hours | -41.4% |
| 1983 | -0.137 terawatt-hours | -145.6% |
| 1984 | -0.4066 terawatt-hours | +196.8% |
| 1985 | 0.0477 terawatt-hours | -111.7% |
| 1986 | 1.15 terawatt-hours | +2312.3% |
| 1987 | 0.766 terawatt-hours | -33.4% |
| 1988 | 0.43 terawatt-hours | -43.9% |
| 1989 | -1.51 terawatt-hours | -452.1% |
| 1990 | 0.649 terawatt-hours | -142.9% |
| 1991 | -1.77 terawatt-hours | -373.3% |
| 1992 | 3.6 terawatt-hours | -302.8% |
| 1993 | 1.33 terawatt-hours | -63.1% |
| 1994 | -3.64 terawatt-hours | -373.7% |
| 1995 | 1.43 terawatt-hours | -139.2% |
| 1996 | 0.491 terawatt-hours | -65.6% |
| 1997 | -2.87 terawatt-hours | -685.1% |
| 1998 | 1.55 terawatt-hours | -153.8% |
| 1999 | -2.35 terawatt-hours | -251.6% |
| 2000 | -1.36 terawatt-hours | -41.9% |
| 2001 | 0.341 terawatt-hours | -125.0% |
| 2002 | 3.89 terawatt-hours | +1040.8% |
| 2003 | 1.58 terawatt-hours | -59.5% |
| 2004 | 2.35 terawatt-hours | +48.8% |
| 2005 | 2.52 terawatt-hours | +7.2% |
| 2006 | 4.06 terawatt-hours | +61.5% |
| 2007 | -0.55 terawatt-hours | -113.5% |
| 2008 | -10.52 terawatt-hours | +1812.9% |
| 2009 | -0.715 terawatt-hours | -93.2% |
| 2010 | 3.53 terawatt-hours | -593.6% |
| 2011 | 0.432 terawatt-hours | -87.8% |
| 2012 | 1.82 terawatt-hours | +320.8% |
| 2013 | 2.12 terawatt-hours | +16.7% |
| 2014 | -0.12 terawatt-hours | -105.7% |
| 2015 | -1.25 terawatt-hours | +943.3% |
| 2016 | 2.17 terawatt-hours | -273.3% |
| 2017 | 1.81 terawatt-hours | -16.6% |
| 2018 | -7.39 terawatt-hours | -508.5% |
| 2019 | 24.03 terawatt-hours | -425.0% |
| 2020 | -10.66 terawatt-hours | -144.4% |
| 2021 | -23.2 terawatt-hours | +117.7% |
| 2022 | 14 terawatt-hours | -160.3% |
| 2023 | 8.81 terawatt-hours | -37.1% |
| 2024 | -3.94 terawatt-hours | -144.7% |
| 2025 | -6.92 terawatt-hours | +75.4% |
Iran compared with similar countries
- Iran's -6.92 terawatt-hours is below the median for upper middle income countries, which is 0.3957 terawatt-hours. (24 countries reporting)
Biggest year-on-year movements
Years where Annual change in primary energy from hydropower 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 |
|---|---|---|---|
| 1986 | +2312.3% | 0.0477 terawatt-hours | 1.15 terawatt-hours |
| 2008 | -1812.9% | -0.55 terawatt-hours | -10.52 terawatt-hours |
| 1978 | +1651.7% | 0.1282 terawatt-hours | 2.25 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.1458 terawatt-hours | 0.1282 terawatt-hours | 0.1635 terawatt-hours | 4 |
| 1970s | 0.308 terawatt-hours | -0.8264 terawatt-hours | 2.25 terawatt-hours | 10 |
| 1980s | 0.1349 terawatt-hours | -1.51 terawatt-hours | 1.15 terawatt-hours | 10 |
| 1990s | -0.1589 terawatt-hours | -3.64 terawatt-hours | 3.6 terawatt-hours | 10 |
| 2000s | 0.158 terawatt-hours | -10.52 terawatt-hours | 4.06 terawatt-hours | 10 |
| 2010s | 2.71 terawatt-hours | -7.39 terawatt-hours | 24.03 terawatt-hours | 10 |
| 2020s | -3.65 terawatt-hours | -23.2 terawatt-hours | 14 terawatt-hours | 6 |
Countries ranked near Iran
More reference data data for Iran
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.47 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 12.01 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 26.62 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 1.34 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 11.62 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 3.84 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 46.54 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 109.46 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 7.3 (2050)
Frequently asked questions
- What is annual change in primary energy from hydropower in Iran?
- Annual change in primary energy from hydropower in Iran was -6.92 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 annual change in primary energy from hydropower recorded in Iran?
- The highest recorded value was 24.03 terawatt-hours in 2019.
- What is the lowest annual change in primary energy from hydropower recorded in Iran?
- The lowest recorded value was -23.2 terawatt-hours in 2021.
- How does Iran rank for annual change in primary energy from hydropower?
- Iran ranks 73rd out of 80 countries with data for 2025.
- Is annual change in primary energy from hydropower rising or falling in Iran?
- Over the last ten years it is down 452.3%. 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 Annual change in primary energy from hydropower. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 60 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.