Annual change in primary energy from hydropower in Iceland
Iceland: Annual change in primary energy from hydropower was -0.4471 terawatt-hours in 2025. ◆ Volatile
Annual change in primary energy from hydropower in Iceland, 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
In 2025, annual change in primary energy from hydropower in Iceland stood at -0.4471 terawatt-hours.
That represents a change of up 28.1% on the previous year and down 149.2% over ten years.
Over the whole period, annual change in primary energy from hydropower in Iceland peaked at 4.03 terawatt-hours in 2008 and was at its lowest, -0.6218 terawatt-hours, in 2024.
That places Iceland 50th out of 77 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.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.0548 terawatt-hours | -0.0168 terawatt-hours | 0.1732 terawatt-hours | 4 |
| 1970s | 0.1959 terawatt-hours | -0.0526 terawatt-hours | 0.5528 terawatt-hours | 10 |
| 1980s | 0.1394 terawatt-hours | -0.075 terawatt-hours | 0.3226 terawatt-hours | 10 |
| 1990s | 0.1829 terawatt-hours | -0.0595 terawatt-hours | 0.439 terawatt-hours | 10 |
| 2000s | 0.6238 terawatt-hours | -0.1481 terawatt-hours | 4.03 terawatt-hours | 10 |
| 2010s | 0.1182 terawatt-hours | -0.3513 terawatt-hours | 0.9078 terawatt-hours | 10 |
| 2020s | -0.0507 terawatt-hours | -0.6218 terawatt-hours | 0.647 terawatt-hours | 6 |
Countries ranked near Iceland
More reference data data for Iceland
- Spring temperature anomalies -0.5453 °C (2026)
- Summer temperature anomalies 0.1076 °C (2026)
- Temperature anomalies by month -0.09 °C (2026)
- Universal right to vote in practice 2 (2025)
- Autumn temperature anomalies 0.653 °C (2025)
- Winter temperature anomalies 3.5 °C (2025)
- Consumer price index 179.82 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is annual change in primary energy from hydropower in Iceland?
- Annual change in primary energy from hydropower in Iceland was -0.4471 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 Iceland?
- The highest recorded value was 4.03 terawatt-hours in 2008.
- What is the lowest annual change in primary energy from hydropower recorded in Iceland?
- The lowest recorded value was -0.6218 terawatt-hours in 2024.
- How does Iceland rank for annual change in primary energy from hydropower?
- Iceland ranks 50th out of 77 countries with data for 2025.
- Is annual change in primary energy from hydropower rising or falling in Iceland?
- Over the last ten years it is down 149.2%. The long-run trend across the full record is volatile.
- Where does this Iceland 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.