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
Annual change in primary energy from hydropower in Iran, 1966–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – 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 70th out of 77 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.
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
- Spring temperature anomalies 0.0713 °C (2026)
- Summer temperature anomalies 1.08 °C (2026)
- Temperature anomalies by month 0.2419 °C (2026)
- Universal right to vote in practice 0 (2025)
- Autumn temperature anomalies 1.27 °C (2025)
- Winter temperature anomalies 1.14 °C (2025)
- Consumer price index 4,030 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
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); Smil (2017) – 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 70th out of 77 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); Smil (2017) – 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.
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About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.