Iceland generated 13.0 TWh of electricity from hydro in 2025, 70.2% of its total, according to Ember. That made it the 39th largest hydro power producer in 2025 of the 153 countries with Ember data, comparing each country's latest year. Hydro supplied 14.0% of the world's electricity in 2025. These are annual statistics for 2025, with monthly figures through August 2026; they are
compiled from national sources and are not real time.
Key Facts
Iceland generated 13.0 TWh of electricity from hydro in 2025.
Hydro supplied 70.2% of Iceland's electricity in 2025.
Iceland was the 39th largest hydro power producer in 2025 among the 153 countries with Ember data, comparing each country's latest year.
Iceland's hydro generation in 2025 was 1% higher than in 2020, when it was 12.9 TWh.
Iceland's hydro generation in 2025 was 4% lower than in 2015, when it was 13.5 TWh.
Iceland's hydro generation peaked at 14.1 TWh in 2023.
Iceland's hydro share in 2025 was above the world share of 14.0%.
Iceland had 2.13 GW of hydro generating capacity in 2024.
Key Figures, 2025
Measure
Value
As of / source
Hydro generation
13.0 TWh
2025 · Ember
Share of Iceland's electricity
70.2%
2025 · Ember
World share of hydro
14.0%
2025 · Ember
Rank by hydro generation (each country's latest year)
39 of 153
2025 · Ember
Hydro Generation Year by Year
Ember annual statistics, 2000 to 2025
Hydro
Iceland's electricity generation from hydro each year from 2000 to 2025, in TWh. It was 13.0 TWh in 2025.
Annual statistics through 2025, TWh
Iceland hydro electricity generation, 2000 to 2025
Year
Hydro
2000
6.29 TWh
2001
6.51 TWh
2002
6.91 TWh
2003
7.02 TWh
2004
7.06 TWh
2005
6.95 TWh
2006
7.22 TWh
2007
8.31 TWh
2008
12.3 TWh
2009
12.2 TWh
2010
12.5 TWh
2011
12.4 TWh
2012
12.2 TWh
2013
12.8 TWh
2014
12.6 TWh
2015
13.5 TWh
2016
13.1 TWh
2017
13.9 TWh
2018
13.7 TWh
2019
13.3 TWh
2020
12.9 TWh
2021
13.6 TWh
2022
13.9 TWh
2023
14.1 TWh
2024
13.5 TWh
2025
13.0 TWh
IcelandWorld
The share of Iceland's electricity generated from hydro, 2000 to 2025, compared with the world share. In 2025 it was 70.2%, against 14.0% worldwide.
Annual statistics through 2025, % of generation
Share of Iceland's electricity from hydro and the world share, 2000 to 2025
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025. World shares are Ember's World totals; ranks compare each country's latest year, which can differ between countries.
Hydro Generation Month by Month
Ember monthly statistics through August 2026
Hydro
Iceland generated 1.03 TWh of electricity from hydro in August 2026, against 1.10 TWh in August 2025.
Monthly statistics through August 2026, TWh
Iceland monthly hydro electricity generation, September 2024 to August 2026
Month
Hydro
2024-09
1.16 TWh
2024-10
1.19 TWh
2024-11
1.16 TWh
2024-12
1.17 TWh
2025-01
1.13 TWh
2025-02
1.03 TWh
2025-03
1.14 TWh
2025-04
1.09 TWh
2025-05
1.12 TWh
2025-06
1.10 TWh
2025-07
1.12 TWh
2025-08
1.10 TWh
2025-09
1.12 TWh
2025-10
1.12 TWh
2025-11
1.05 TWh
2025-12
1.03 TWh
2026-01
1.02 TWh
2026-02
950 GWh
2026-03
1.02 TWh
2026-04
980 GWh
2026-05
1.07 TWh
2026-06
1.07 TWh
2026-07
1.11 TWh
2026-08
1.03 TWh
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of August 2026. Monthly figures for Iceland can differ slightly from the annual totals.