Iceland Electricity: Generation Mix, Demand and Emissions
Iceland generated 18.5 TWh of electricity in 2025, according to Ember. Hydro was the largest source at 70.2%, followed by other renewables (29.7%) and solar (0.1%). Demand was 18.5 TWh and each kWh generated emitted 28 gCO2/kWh. 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 18.5 TWh of electricity in 2025.
- Hydro supplied 70.2% of Iceland's electricity in 2025.
- Other renewables supplied 29.7% of Iceland's electricity in 2025.
- Solar supplied 0.1% of Iceland's electricity in 2025.
- Low carbon sources (nuclear and renewables) supplied 100.0% of Iceland's generation in 2025.
- The carbon intensity of Iceland's electricity was 28 gCO2/kWh in 2025.
- Iceland's carbon intensity in 2025 was 7% higher than in 2000, when it was 26 gCO2/kWh.
- Iceland had the 70th highest electricity demand among the 93 countries with Ember data for 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 18.5 TWh | 2025 · Ember |
| Electricity demand | 18.5 TWh | 2025 · Ember |
| Net imports | 0 TWh | 2025 · Ember |
| Carbon intensity | 28 gCO2/kWh | 2025 · Ember |
| Power sector emissions | 0.52 MtCO2 | 2025 · Ember |
| Demand rank (countries with 2025 data) | 70 of 93 | 2025 · Ember |
Generation Mix, 2025
| Source | Generation | Share |
|---|---|---|
| Hydro | 13.0 TWh | 70.2% |
| Other renewables | 5.51 TWh | 29.7% |
| Solar | 10.0 GWh | 0.1% |
| Wind | 10.0 GWh | 0.1% |
Year by Year
Ember annual statistics, 2000 to 2025| Year | Hydro | Other renewables | Solar | Wind |
|---|---|---|---|---|
| 2000 | 6.29 TWh | 1.32 TWh | 0 TWh | 0 TWh |
| 2001 | 6.51 TWh | 1.45 TWh | 0 TWh | 0 TWh |
| 2002 | 6.91 TWh | 1.43 TWh | 0 TWh | 0 TWh |
| 2003 | 7.02 TWh | 1.41 TWh | 0 TWh | 0 TWh |
| 2004 | 7.06 TWh | 1.48 TWh | 0 TWh | 0 TWh |
| 2005 | 6.95 TWh | 1.66 TWh | 0 TWh | 0 TWh |
| 2006 | 7.22 TWh | 2.63 TWh | 0 TWh | 0 TWh |
| 2007 | 8.31 TWh | 3.58 TWh | 0 TWh | 0 TWh |
| 2008 | 12.3 TWh | 4.04 TWh | 0 TWh | 0 TWh |
| 2009 | 12.2 TWh | 4.55 TWh | 0 TWh | 0 TWh |
| 2010 | 12.5 TWh | 4.23 TWh | 0 TWh | 0 TWh |
| 2011 | 12.4 TWh | 4.47 TWh | 0 TWh | 0 TWh |
| 2012 | 12.2 TWh | 5.08 TWh | 0 TWh | 0 TWh |
| 2013 | 12.8 TWh | 5.24 TWh | 0 TWh | 0 TWh |
| 2014 | 12.6 TWh | 5.24 TWh | 0 TWh | 10.0 GWh |
| 2015 | 13.5 TWh | 5.00 TWh | 0 TWh | 10.0 GWh |
| 2016 | 13.1 TWh | 5.07 TWh | 0 TWh | 10.0 GWh |
| 2017 | 13.9 TWh | 5.17 TWh | 0 TWh | 10.0 GWh |
| 2018 | 13.7 TWh | 6.01 TWh | 0 TWh | 0 TWh |
| 2019 | 13.3 TWh | 6.02 TWh | 0 TWh | 10.0 GWh |
| 2020 | 12.9 TWh | 5.96 TWh | 0 TWh | 10.0 GWh |
| 2021 | 13.6 TWh | 5.80 TWh | 0 TWh | 10.0 GWh |
| 2022 | 13.9 TWh | 5.92 TWh | 0 TWh | 10.0 GWh |
| 2023 | 14.1 TWh | 5.70 TWh | 0 TWh | 10.0 GWh |
| 2024 | 13.5 TWh | 5.57 TWh | 10.0 GWh | 10.0 GWh |
| 2025 | 13.0 TWh | 5.51 TWh | 10.0 GWh | 10.0 GWh |
| Year | Generation | Demand | Carbon intensity |
|---|---|---|---|
| 2025 | 18.5 TWh | 18.5 TWh | 28 gCO2/kWh |
| 2024 | 19.1 TWh | 19.1 TWh | 28 gCO2/kWh |
| 2023 | 19.8 TWh | 19.8 TWh | 28 gCO2/kWh |
| 2022 | 19.9 TWh | 19.9 TWh | 28 gCO2/kWh |
| 2021 | 19.4 TWh | 19.4 TWh | 28 gCO2/kWh |
| 2020 | 18.9 TWh | 18.9 TWh | 28 gCO2/kWh |
| 2019 | 19.4 TWh | 19.4 TWh | 28 gCO2/kWh |
| 2018 | 19.7 TWh | 19.7 TWh | 28 gCO2/kWh |
| 2017 | 19.1 TWh | 19.1 TWh | 28 gCO2/kWh |
| 2016 | 18.2 TWh | 18.2 TWh | 28 gCO2/kWh |
Full year by year history for Iceland, 2000 to 2025
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.
Month by Month
Ember monthly statistics through August 2026| Month | Demand | Generation |
|---|---|---|
| 2024-09 | 1.62 TWh | 1.61 TWh |
| 2024-10 | 1.69 TWh | 1.69 TWh |
| 2024-11 | 1.65 TWh | 1.64 TWh |
| 2024-12 | 1.69 TWh | 1.69 TWh |
| 2025-01 | 1.66 TWh | 1.67 TWh |
| 2025-02 | 1.51 TWh | 1.51 TWh |
| 2025-03 | 1.66 TWh | 1.66 TWh |
| 2025-04 | 1.59 TWh | 1.59 TWh |
| 2025-05 | 1.61 TWh | 1.61 TWh |
| 2025-06 | 1.57 TWh | 1.57 TWh |
| 2025-07 | 1.62 TWh | 1.61 TWh |
| 2025-08 | 1.60 TWh | 1.60 TWh |
| 2025-09 | 1.57 TWh | 1.58 TWh |
| 2025-10 | 1.58 TWh | 1.57 TWh |
| 2025-11 | 1.41 TWh | 1.41 TWh |
| 2025-12 | 1.43 TWh | 1.42 TWh |
| 2026-01 | 1.44 TWh | 1.44 TWh |
| 2026-02 | 1.34 TWh | 1.34 TWh |
| 2026-03 | 1.46 TWh | 1.46 TWh |
| 2026-04 | 1.39 TWh | 1.40 TWh |
| 2026-05 | 1.48 TWh | 1.48 TWh |
| 2026-06 | 1.48 TWh | 1.49 TWh |
| 2026-07 | 1.54 TWh | 1.54 TWh |
| 2026-08 | 1.38 TWh | 1.38 TWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of August 2026.
Iceland Electricity FAQ
What is the main source of electricity in Iceland?
Hydro was the largest source of electricity in Iceland in 2025, supplying 70.2% of generation, followed by other renewables (29.7%) and solar (0.1%). Figures are Ember annual statistics.
How much electricity does Iceland use?
Iceland used 18.5 TWh of electricity in 2025.
How clean is Iceland's electricity?
Generating a kilowatt hour of electricity in Iceland emitted 28 gCO2/kWh in 2025, and low carbon sources supplied 100.0% of generation. That is 94% below the world average of 459 gCO2/kWh.