Hydropower generation by region in Iceland
Iceland: Hydropower generation by region was 13.16 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
13.16 terawatt-hours
Change on year
down 3.3%
World rank
33rd
of 80 countries
All-time high
14.23 terawatt-hours
in 2023
All-time low
0.6239 terawatt-hours
in 1966
Years of data
61
1965–2025
Hydropower generation by region in Iceland, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, hydropower generation by region in Iceland stood at 13.16 terawatt-hours.
That represents a change of down 3.3% on the previous year and down 4.5% over ten years.
Over the whole period, hydropower generation by region in Iceland peaked at 14.23 terawatt-hours in 2023 and was at its lowest, 0.6239 terawatt-hours, in 1966.
That places Iceland 33rd 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.
Hydropower generation by region in Iceland, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0.6407 terawatt-hours | — |
| 1966 | 0.6239 terawatt-hours | -2.6% |
| 1967 | 0.6645 terawatt-hours | +6.5% |
| 1968 | 0.6869 terawatt-hours | +3.4% |
| 1969 | 0.8601 terawatt-hours | +25.2% |
| 1970 | 1.41 terawatt-hours | +64.3% |
| 1971 | 1.54 terawatt-hours | +9.0% |
| 1972 | 1.7 terawatt-hours | +10.6% |
| 1973 | 2.18 terawatt-hours | +28.1% |
| 1974 | 2.26 terawatt-hours | +3.5% |
| 1975 | 2.21 terawatt-hours | -2.3% |
| 1976 | 2.35 terawatt-hours | +6.5% |
| 1977 | 2.52 terawatt-hours | +7.2% |
| 1978 | 2.6 terawatt-hours | +3.4% |
| 1979 | 2.82 terawatt-hours | +8.2% |
| 1980 | 3.05 terawatt-hours | +8.3% |
| 1981 | 3.08 terawatt-hours | +1.0% |
| 1982 | 3.41 terawatt-hours | +10.5% |
| 1983 | 3.59 terawatt-hours | +5.3% |
| 1984 | 3.74 terawatt-hours | +4.2% |
| 1985 | 3.66 terawatt-hours | -2.0% |
| 1986 | 3.84 terawatt-hours | +4.9% |
| 1987 | 3.91 terawatt-hours | +1.9% |
| 1988 | 4.16 terawatt-hours | +6.4% |
| 1989 | 4.21 terawatt-hours | +1.2% |
| 1990 | 4.15 terawatt-hours | -1.4% |
| 1991 | 4.15 terawatt-hours | +0.0% |
| 1992 | 4.3 terawatt-hours | +3.6% |
| 1993 | 4.46 terawatt-hours | +3.6% |
| 1994 | 4.51 terawatt-hours | +1.1% |
| 1995 | 4.68 terawatt-hours | +3.7% |
| 1996 | 4.76 terawatt-hours | +1.8% |
| 1997 | 5.2 terawatt-hours | +9.2% |
| 1998 | 5.62 terawatt-hours | +8.0% |
| 1999 | 6.04 terawatt-hours | +7.6% |
| 2000 | 6.35 terawatt-hours | +5.1% |
| 2001 | 6.57 terawatt-hours | +3.5% |
| 2002 | 6.97 terawatt-hours | +6.1% |
| 2003 | 7.08 terawatt-hours | +1.6% |
| 2004 | 7.13 terawatt-hours | +0.7% |
| 2005 | 7.02 terawatt-hours | -1.6% |
| 2006 | 7.29 terawatt-hours | +3.9% |
| 2007 | 8.39 terawatt-hours | +15.2% |
| 2008 | 12.43 terawatt-hours | +48.1% |
| 2009 | 12.28 terawatt-hours | -1.2% |
| 2010 | 12.59 terawatt-hours | +2.5% |
| 2011 | 12.51 terawatt-hours | -0.7% |
| 2012 | 12.34 terawatt-hours | -1.4% |
| 2013 | 12.86 terawatt-hours | +4.3% |
| 2014 | 12.87 terawatt-hours | +0.1% |
| 2015 | 13.78 terawatt-hours | +7.1% |
| 2016 | 13.47 terawatt-hours | -2.3% |
| 2017 | 14.06 terawatt-hours | +4.4% |
| 2018 | 13.81 terawatt-hours | -1.7% |
| 2019 | 13.46 terawatt-hours | -2.5% |
| 2020 | 13.16 terawatt-hours | -2.3% |
| 2021 | 13.8 terawatt-hours | +4.9% |
| 2022 | 14.2 terawatt-hours | +2.8% |
| 2023 | 14.23 terawatt-hours | +0.2% |
| 2024 | 13.6 terawatt-hours | -4.4% |
| 2025 | 13.16 terawatt-hours | -3.3% |
Iceland compared with similar countries
- Iceland's 13.16 terawatt-hours is above the median for high income countries, which is 3.45 terawatt-hours, 3.8× the median. (47 countries reporting)
- Iceland's 13.16 terawatt-hours is above the median for Europe & Central Asia, which is 3.99 terawatt-hours, 3.3× the median. (39 countries reporting)
Biggest year-on-year movements
Years where Hydropower generation by region 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 |
|---|---|---|---|
| 1970 | +64.3% | 0.8601 terawatt-hours | 1.41 terawatt-hours |
| 2008 | +48.1% | 8.39 terawatt-hours | 12.43 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.6952 terawatt-hours | 0.6239 terawatt-hours | 0.8601 terawatt-hours | 5 |
| 1970s | 2.16 terawatt-hours | 1.41 terawatt-hours | 2.82 terawatt-hours | 10 |
| 1980s | 3.67 terawatt-hours | 3.05 terawatt-hours | 4.21 terawatt-hours | 10 |
| 1990s | 4.79 terawatt-hours | 4.15 terawatt-hours | 6.04 terawatt-hours | 10 |
| 2000s | 8.15 terawatt-hours | 6.35 terawatt-hours | 12.43 terawatt-hours | 10 |
| 2010s | 13.18 terawatt-hours | 12.34 terawatt-hours | 14.06 terawatt-hours | 10 |
| 2020s | 13.69 terawatt-hours | 13.16 terawatt-hours | 14.23 terawatt-hours | 6 |
Countries ranked near Iceland
More energy & mining data for Iceland
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Primary energy use, annual growth rate -4.9 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0.0002 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2024)
- Fuel imports 9.0% (2025)
Frequently asked questions
- What is hydropower generation by region in Iceland?
- Hydropower generation by region in Iceland was 13.16 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 hydropower generation by region recorded in Iceland?
- The highest recorded value was 14.23 terawatt-hours in 2023.
- What is the lowest hydropower generation by region recorded in Iceland?
- The lowest recorded value was 0.6239 terawatt-hours in 1966.
- How does Iceland rank for hydropower generation by region?
- Iceland ranks 33rd out of 80 countries with data for 2025.
- Is hydropower generation by region rising or falling in Iceland?
- Over the last ten years it is down 4.5%. 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 Hydropower generation by region. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Figures are based on gross primary hydroelectric generation and do not account for cross-border electricity supply.