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
Latest (2025)
-0.4471 terawatt-hours
Change on year
up 28.1%
World rank
53rd
of 80 countries
All-time high
4.03 terawatt-hours
in 2008
All-time low
-0.6218 terawatt-hours
in 2024
Years of data
60
1966–2025
Annual change in primary energy from hydropower in Iceland, 1966–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, 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 53rd out of 80 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.
Annual change in primary energy from hydropower in Iceland, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1966 | -0.0168 terawatt-hours | — |
| 1967 | 0.0406 terawatt-hours | -341.7% |
| 1968 | 0.0224 terawatt-hours | -44.8% |
| 1969 | 0.1732 terawatt-hours | +673.2% |
| 1970 | 0.5528 terawatt-hours | +219.2% |
| 1971 | 0.1267 terawatt-hours | -77.1% |
| 1972 | 0.163 terawatt-hours | +28.7% |
| 1973 | 0.4784 terawatt-hours | +193.5% |
| 1974 | 0.0772 terawatt-hours | -83.9% |
| 1975 | -0.0526 terawatt-hours | -168.1% |
| 1976 | 0.1439 terawatt-hours | -373.6% |
| 1977 | 0.1702 terawatt-hours | +18.3% |
| 1978 | 0.0853 terawatt-hours | -49.9% |
| 1979 | 0.2141 terawatt-hours | +151.0% |
| 1980 | 0.2341 terawatt-hours | +9.3% |
| 1981 | 0.0313 terawatt-hours | -86.6% |
| 1982 | 0.3226 terawatt-hours | +930.7% |
| 1983 | 0.1808 terawatt-hours | -44.0% |
| 1984 | 0.15 terawatt-hours | -17.0% |
| 1985 | -0.075 terawatt-hours | -150.0% |
| 1986 | 0.1789 terawatt-hours | -338.5% |
| 1987 | 0.0722 terawatt-hours | -59.6% |
| 1988 | 0.25 terawatt-hours | +246.3% |
| 1989 | 0.0492 terawatt-hours | -80.3% |
| 1990 | -0.0595 terawatt-hours | -220.9% |
| 1991 | 0 terawatt-hours | -100.0% |
| 1992 | 0.1506 terawatt-hours | — |
| 1993 | 0.1567 terawatt-hours | +4.1% |
| 1994 | 0.0483 terawatt-hours | -69.2% |
| 1995 | 0.1679 terawatt-hours | +247.6% |
| 1996 | 0.0851 terawatt-hours | -49.3% |
| 1997 | 0.439 terawatt-hours | +415.7% |
| 1998 | 0.4143 terawatt-hours | -5.6% |
| 1999 | 0.4263 terawatt-hours | +2.9% |
| 2000 | 0.3086 terawatt-hours | -27.6% |
| 2001 | 0.2221 terawatt-hours | -28.0% |
| 2002 | 0.3981 terawatt-hours | +79.2% |
| 2003 | 0.1116 terawatt-hours | -72.0% |
| 2004 | 0.0496 terawatt-hours | -55.6% |
| 2005 | -0.1166 terawatt-hours | -335.3% |
| 2006 | 0.2737 terawatt-hours | -334.7% |
| 2007 | 1.1 terawatt-hours | +303.6% |
| 2008 | 4.03 terawatt-hours | +265.1% |
| 2009 | -0.1481 terawatt-hours | -103.7% |
| 2010 | 0.3127 terawatt-hours | -311.2% |
| 2011 | -0.0852 terawatt-hours | -127.3% |
| 2012 | -0.1703 terawatt-hours | +99.8% |
| 2013 | 0.5263 terawatt-hours | -409.0% |
| 2014 | 0.0102 terawatt-hours | -98.1% |
| 2015 | 0.9078 terawatt-hours | +8825.0% |
| 2016 | -0.3112 terawatt-hours | -134.3% |
| 2017 | 0.5891 terawatt-hours | -289.3% |
| 2018 | -0.2459 terawatt-hours | -141.7% |
| 2019 | -0.3513 terawatt-hours | +42.9% |
| 2020 | -0.3045 terawatt-hours | -13.3% |
| 2021 | 0.647 terawatt-hours | -312.5% |
| 2022 | 0.3917 terawatt-hours | -39.5% |
| 2023 | 0.0303 terawatt-hours | -92.3% |
| 2024 | -0.6218 terawatt-hours | -2154.2% |
| 2025 | -0.4471 terawatt-hours | -28.1% |
Iceland compared with similar countries
- Iceland's -0.4471 terawatt-hours is below the median for high income countries, which is -0.1136 terawatt-hours, 3.9× the median. (47 countries reporting)
- Iceland's -0.4471 terawatt-hours is below the median for Europe & Central Asia, which is -0.2504 terawatt-hours, 1.8× the median. (39 countries reporting)
Biggest year-on-year movements
Years where Annual change in primary energy from hydropower in Iceland 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 |
|---|---|---|---|
| 2015 | +8825.0% | 0.0102 terawatt-hours | 0.9078 terawatt-hours |
| 2024 | -2154.2% | 0.0303 terawatt-hours | -0.6218 terawatt-hours |
| 1982 | +930.7% | 0.0313 terawatt-hours | 0.3226 terawatt-hours |
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
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0288 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0708 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.1854 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.0001 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.1854 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0964 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.062 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.2576 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.7664 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.0005 (2050)
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) – 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 53rd out of 80 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) – 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.