Iceland Electricity: Generation Mix, Demand and Emissions
Iceland generated 18.3 TWh of electricity in 2025, according to Ember. Hydro was the largest source at 71.2%, followed by other renewables (28.7%) and solar (0.1%). Demand was 18.3 TWh and each kWh generated emitted 28 gCO2/kWh. These are annual statistics for 2025, with monthly figures through September 2026; they are compiled from national sources and are not real time.
Key Facts
- Iceland generated 18.3 TWh of electricity in 2025.
- Hydro supplied 71.2% of Iceland's electricity in 2025.
- Other renewables supplied 28.7% 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 6% higher than in 2000, when it was 26 gCO2/kWh.
- Iceland had the 74th highest electricity demand among the 96 countries with Ember data for 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 18.3 TWh | 2025 · Ember |
| Electricity demand | 18.3 TWh | 2025 · Ember |
| Net imports | 0 TWh | 2025 · Ember |
| Carbon intensity | 28 gCO2/kWh | 2025 · Ember |
| Power sector emissions | 0.51 MtCO2 | 2025 · Ember |
| Demand rank (countries with 2025 data) | 74 of 96 | 2025 · Ember |
Generation Mix, 2025
| Source | Generation | Share |
|---|---|---|
| Hydro | 13.0 TWh | 71.2% |
| Other renewables | 5.24 TWh | 28.7% |
| Solar | 10.0 GWh | 0.1% |
| Wind | 10.0 GWh | 0.0% |
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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 | 5.24 TWh | 10.0 GWh | 10.0 GWh |
| Year | Generation | Demand | Carbon intensity |
|---|---|---|---|
| 2025 | 18.3 TWh | 18.3 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 September 2026| Month | Demand | Generation |
|---|---|---|
| 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 | 1.55 TWh | 1.55 TWh |
| 2026-09 | 1.58 TWh | 1.58 TWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of September 2026.
Seasonal Patterns in Iceland
Ember monthly statistics, complete years only, through September 2026Electricity demand by month
Look for the brightest columns. Averaged over 2016 to 2025, demand is highest in January and lowest in July, and the busiest month uses 6% more electricity per day than the quietest.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 1.66 | 1.51 | 1.66 | 1.59 | 1.61 | 1.57 | 1.62 | 1.60 | 1.57 | 1.58 | 1.41 | 1.43 |
| 2024 | 1.68 | 1.57 | 1.66 | 1.58 | 1.62 | 1.58 | 1.62 | 1.64 | 1.62 | 1.69 | 1.65 | 1.69 |
| 2023 | 1.78 | 1.60 | 1.79 | 1.68 | 1.71 | 1.62 | 1.68 | 1.68 | 1.67 | 1.70 | 1.64 | 1.69 |
| 2022 | 1.75 | 1.54 | 1.66 | 1.64 | 1.72 | 1.61 | 1.67 | 1.69 | 1.65 | 1.74 | 1.69 | 1.76 |
| 2021 | 1.66 | 1.49 | 1.66 | 1.58 | 1.65 | 1.56 | 1.61 | 1.62 | 1.62 | 1.71 | 1.73 | 1.75 |
| 2020 | 1.70 | 1.59 | 1.70 | 1.59 | 1.59 | 1.50 | 1.54 | 1.55 | 1.54 | 1.60 | 1.58 | 1.66 |
| 2019 | 1.73 | 1.58 | 1.74 | 1.64 | 1.70 | 1.55 | 1.57 | 1.52 | 1.52 | 1.63 | 1.61 | 1.70 |
| 2018 | 1.71 | 1.55 | 1.70 | 1.62 | 1.67 | 1.58 | 1.63 | 1.64 | 1.61 | 1.70 | 1.69 | 1.74 |
| 2017 | 1.64 | 1.50 | 1.70 | 1.58 | 1.61 | 1.54 | 1.58 | 1.59 | 1.55 | 1.63 | 1.63 | 1.70 |
| 2016 | 1.64 | 1.53 | 1.61 | 1.54 | 1.57 | 1.48 | 1.47 | 1.49 | 1.48 | 1.55 | 1.56 | 1.63 |
- Lower demand per day
- Higher demand per day
- No data
- Each cell shows the month's total demand in TWh, and colour compares demand per day so short months are not shaded as quiet. Lowest cell 1.41 TWh, highest 1.79 TWh. Colours are relative to Iceland alone.
Low carbon share of generation by month
The low carbon share stays close to 100% all year: averaged over 2016 to 2025, the best month, January, is only 0.0 points above the lowest, January. Look down a column to see how the share has changed from year to year.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2024 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2023 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2022 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
- Little variation, so cells are not coloured.
- No data
- Each cell shows the low carbon share. Lowest cell 100%, highest 100%. Colours are relative to Iceland alone.
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of September 2026. Complete calendar years only.
Countries With a Similar Electricity Mix
Ember annual, 2025Iceland's closest match is Costa Rica, 83.2% the same.
- Costa Rica 83.2% the same Costa Rica generates 16.8 points less other renewables than Iceland
- New Zealand 76.3% the same New Zealand generates 17.2 points less hydro than Iceland
- Ethiopia 71.4% the same Ethiopia generates 28.6 points less other renewables than Iceland
- Norway 71.4% the same Norway generates 28.6 points less other renewables than Iceland
- Guinea 71.3% the same Guinea generates 28.7 points less other renewables than Iceland
How close: the share of generation that would have to change fuel for one mix to match the other (half the sum of the fuel share differences); 100% minus that is "the same". Grids under 1 TWh are skipped. Grid twins: the 25 closest pairs and every country's nearest match
Iceland Electricity FAQ
What is the main source of electricity in Iceland?
Hydro was the largest source of electricity in Iceland in 2025, supplying 71.2% of generation, followed by other renewables (28.7%) and solar (0.1%). Figures are Ember annual statistics.
How much electricity does Iceland use?
Iceland used 18.3 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 460 gCO2/kWh.
When does Iceland use the most electricity?
Averaged over 2016 to 2025, Iceland's electricity demand is highest in January and lowest in July. The busiest month uses 6% more electricity per day than the quietest (Ember monthly data).
Related
Cite this page
World Power Monitor. (2026). Iceland Electricity: Generation Mix, Demand and Emissions. https://worldpowermonitor.com/countries/iceland/
World Power Monitor. Iceland Electricity: Generation Mix, Demand and Emissions. Data as of 2026-09. Data from Ember. https://worldpowermonitor.com/countries/iceland/
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title = {{Iceland Electricity: Generation Mix, Demand and Emissions}},
author = {{World Power Monitor}},
year = {2026},
note = {Data as of 2026-09. Data from Ember.},
url = {https://worldpowermonitor.com/countries/iceland/}
} Permalink: https://worldpowermonitor.com/countries/iceland/
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