Annual percentage change in primary energy from hydropower in Iran
Iran: Annual percentage change in primary energy from hydropower was -36.6% in 2025. ◆ Volatile
Annual percentage 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 %.
Analysis
Iran recorded -36.6% for annual percentage change in primary energy from hydropower in 2025.
Compared with earlier readings it is down 112.1% on the previous year and down 324.5% over ten years.
Over the whole period, annual percentage change in primary energy from hydropower in Iran peaked at 244.2% in 2019 and was at its lowest, -100.0%, in 2021.
That places Iran 65th out of 68 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 | 7.6% | 7.5% | 7.7% | 4 |
| 1970s | 10.5% | -15.3% | 56.6% | 10 |
| 1980s | 2.8% | -18.4% | 19.5% | 10 |
| 1990s | 1.8% | -34.5% | 64.2% | 10 |
| 2000s | 9.9% | -58.6% | 94.4% | 10 |
| 2010s | 31.1% | -42.9% | 244.2% | 10 |
| 2020s | -24.5% | -100.0% | 62.9% | 5 |
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 percentage change in primary energy from hydropower in Iran?
- Annual percentage change in primary energy from hydropower in Iran was -36.6% 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 percentage change in primary energy from hydropower recorded in Iran?
- The highest recorded value was 244.2% in 2019.
- What is the lowest annual percentage change in primary energy from hydropower recorded in Iran?
- The lowest recorded value was -100.0% in 2021.
- How does Iran rank for annual percentage change in primary energy from hydropower?
- Iran ranks 65th out of 68 countries with data for 2025.
- Is annual percentage change in primary energy from hydropower rising or falling in Iran?
- Over the last ten years it is down 324.5%. 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 percentage change in primary energy from hydropower. Statizoid updates them automatically from the source API.
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About this data
Percentage change in total energy supply relative to the previous year.