Switzerland Electricity: Generation Mix, Demand and Emissions
Switzerland generated 65.0 TWh of electricity in 2025, according to Ember. Hydro was the largest source at 52.3%, followed by nuclear (29.9%) and solar (12.1%). Demand was 65.2 TWh and each kWh generated emitted 39 gCO2/kWh. These are annual statistics for 2025, with monthly figures through May 2026; they are compiled from national sources and are not real time.
Key Facts
- Switzerland generated 65.0 TWh of electricity in 2025.
- Hydro supplied 52.3% of Switzerland's electricity in 2025.
- Nuclear supplied 29.9% of Switzerland's electricity in 2025.
- Solar supplied 12.1% of Switzerland's electricity in 2025.
- Low carbon sources (nuclear and renewables) supplied 97.7% of Switzerland's generation in 2025.
- The carbon intensity of Switzerland's electricity was 39 gCO2/kWh in 2025.
- Switzerland's carbon intensity in 2025 was 17% higher than in 2000, when it was 34 gCO2/kWh.
- Switzerland had the 45th highest electricity demand among the 96 countries with Ember data for 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 65.0 TWh | 2025 · Ember |
| Electricity demand | 65.2 TWh | 2025 · Ember |
| Demand per person | 7.26 MWh | 2025 · Ember |
| Net imports | 150 GWh | 2025 · Ember |
| Carbon intensity | 39 gCO2/kWh | 2025 · Ember |
| Power sector emissions | 2.55 MtCO2 | 2025 · Ember |
| Demand rank (countries with 2025 data) | 45 of 96 | 2025 · Ember |
Generation Mix, 2025
| Source | Generation | Share |
|---|---|---|
| Hydro | 34.0 TWh | 52.3% |
| Nuclear | 19.4 TWh | 29.9% |
| Solar | 7.88 TWh | 12.1% |
| Other fossil | 1.23 TWh | 1.9% |
| Bioenergy | 1.11 TWh | 1.7% |
| Other renewables | 970 GWh | 1.5% |
| Gas | 270 GWh | 0.4% |
| Wind | 150 GWh | 0.2% |
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Year by Year
Ember annual statistics, 2000 to 2025| Year | Hydro | Nuclear | Solar | Other fossil | Bioenergy |
|---|---|---|---|---|---|
| 2000 | 36.8 TWh | 26.5 TWh | 10.0 GWh | 1.13 TWh | 210 GWh |
| 2001 | 41.3 TWh | 26.8 TWh | 10.0 GWh | 1.19 TWh | 200 GWh |
| 2002 | 35.2 TWh | 27.2 TWh | 10.0 GWh | 1.19 TWh | 210 GWh |
| 2003 | 34.8 TWh | 27.5 TWh | 20.0 GWh | 1.20 TWh | 220 GWh |
| 2004 | 33.8 TWh | 27.0 TWh | 20.0 GWh | 1.21 TWh | 220 GWh |
| 2005 | 31.2 TWh | 23.3 TWh | 20.0 GWh | 1.30 TWh | 220 GWh |
| 2006 | 31.0 TWh | 27.8 TWh | 20.0 GWh | 1.39 TWh | 230 GWh |
| 2007 | 35.3 TWh | 27.9 TWh | 30.0 GWh | 1.29 TWh | 290 GWh |
| 2008 | 36.0 TWh | 27.7 TWh | 40.0 GWh | 1.28 TWh | 320 GWh |
| 2009 | 35.7 TWh | 27.7 TWh | 50.0 GWh | 1.24 TWh | 360 GWh |
| 2010 | 36.1 TWh | 26.3 TWh | 90.0 GWh | 1.21 TWh | 360 GWh |
| 2011 | 32.4 TWh | 26.7 TWh | 170 GWh | 1.19 TWh | 440 GWh |
| 2012 | 38.6 TWh | 25.4 TWh | 300 GWh | 1.25 TWh | 530 GWh |
| 2013 | 38.5 TWh | 26.0 TWh | 500 GWh | 1.28 TWh | 580 GWh |
| 2014 | 38.0 TWh | 27.6 TWh | 840 GWh | 1.35 TWh | 590 GWh |
| 2015 | 38.3 TWh | 23.1 TWh | 1.12 TWh | 1.23 TWh | 520 GWh |
| 2016 | 34.6 TWh | 21.2 TWh | 1.33 TWh | 1.28 TWh | 580 GWh |
| 2017 | 34.1 TWh | 20.4 TWh | 1.68 TWh | 1.29 TWh | 690 GWh |
| 2018 | 35.0 TWh | 25.5 TWh | 1.95 TWh | 1.28 TWh | 670 GWh |
| 2019 | 38.0 TWh | 26.4 TWh | 2.18 TWh | 1.29 TWh | 710 GWh |
| 2020 | 37.9 TWh | 24.0 TWh | 2.60 TWh | 1.25 TWh | 810 GWh |
| 2021 | 37.0 TWh | 19.4 TWh | 2.84 TWh | 1.22 TWh | 960 GWh |
| 2022 | 29.9 TWh | 24.2 TWh | 3.86 TWh | 1.21 TWh | 990 GWh |
| 2023 | 37.4 TWh | 24.4 TWh | 4.62 TWh | 1.16 TWh | 1.04 TWh |
| 2024 | 44.9 TWh | 24.0 TWh | 5.66 TWh | 1.22 TWh | 1.04 TWh |
| 2025 | 34.0 TWh | 19.4 TWh | 7.88 TWh | 1.23 TWh | 1.11 TWh |
| Year | Generation | Demand | Carbon intensity |
|---|---|---|---|
| 2025 | 65.0 TWh | 65.2 TWh | 39 gCO2/kWh |
| 2024 | 78.4 TWh | 64.0 TWh | 35 gCO2/kWh |
| 2023 | 70.1 TWh | 63.7 TWh | 35 gCO2/kWh |
| 2022 | 61.7 TWh | 64.9 TWh | 37 gCO2/kWh |
| 2021 | 63.1 TWh | 65.5 TWh | 39 gCO2/kWh |
| 2020 | 68.5 TWh | 62.9 TWh | 37 gCO2/kWh |
| 2019 | 70.6 TWh | 64.3 TWh | 35 gCO2/kWh |
| 2018 | 66.3 TWh | 64.7 TWh | 36 gCO2/kWh |
| 2017 | 60.2 TWh | 65.7 TWh | 40 gCO2/kWh |
| 2016 | 61.1 TWh | 65.0 TWh | 40 gCO2/kWh |
Full year by year history for Switzerland, 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 May 2026| Month | Demand | Generation |
|---|---|---|
| 2024-06 | 5.47 TWh | 7.23 TWh |
| 2024-07 | 5.42 TWh | 9.32 TWh |
| 2024-08 | 5.34 TWh | 8.12 TWh |
| 2024-09 | 5.34 TWh | 6.43 TWh |
| 2024-10 | 5.59 TWh | 6.82 TWh |
| 2024-11 | 6.15 TWh | 6.03 TWh |
| 2024-12 | 6.54 TWh | 5.78 TWh |
| 2025-01 | 6.61 TWh | 5.99 TWh |
| 2025-02 | 5.91 TWh | 5.21 TWh |
| 2025-03 | 6.10 TWh | 5.00 TWh |
| 2025-04 | 5.24 TWh | 5.50 TWh |
| 2025-05 | 5.51 TWh | 6.01 TWh |
| 2025-06 | 5.63 TWh | 7.03 TWh |
| 2025-07 | 5.60 TWh | 6.38 TWh |
| 2025-08 | 5.52 TWh | 6.03 TWh |
| 2025-09 | 5.48 TWh | 5.72 TWh |
| 2025-10 | 5.81 TWh | 5.16 TWh |
| 2025-11 | 6.20 TWh | 4.96 TWh |
| 2025-12 | 6.61 TWh | 4.70 TWh |
| 2026-01 | 6.96 TWh | 4.91 TWh |
| 2026-02 | 6.00 TWh | 4.38 TWh |
| 2026-03 | 6.28 TWh | 5.08 TWh |
| 2026-04 | 5.60 TWh | 5.98 TWh |
| 2026-05 | 5.38 TWh | 5.70 TWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of May 2026.
Seasonal Patterns in Switzerland
Ember monthly statistics, complete years only, through May 2026Electricity demand by month
Look for the brightest columns. Averaged over 2017 to 2025, demand is highest in January and lowest in August, and the busiest month uses 26% more electricity per day than the quietest.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 6.61 | 5.91 | 6.10 | 5.24 | 5.51 | 5.63 | 5.60 | 5.52 | 5.48 | 5.81 | 6.20 | 6.61 |
| 2024 | 6.54 | 5.87 | 5.79 | 5.52 | 5.50 | 5.47 | 5.42 | 5.34 | 5.34 | 5.59 | 6.15 | 6.54 |
| 2023 | 6.44 | 5.65 | 5.88 | 5.40 | 5.40 | 5.38 | 5.32 | 5.21 | 5.16 | 5.55 | 5.93 | 6.38 |
| 2022 | 6.58 | 6.00 | 6.01 | 5.42 | 5.38 | 5.29 | 5.36 | 5.30 | 5.27 | 5.52 | 5.86 | 6.41 |
| 2021 | 6.47 | 5.73 | 5.99 | 5.32 | 5.48 | 5.19 | 5.40 | 5.20 | 5.20 | 5.75 | 6.21 | 6.62 |
| 2020 | 6.40 | 6.01 | 5.87 | 4.86 | 5.13 | 4.94 | 5.11 | 5.01 | 4.90 | 5.67 | 5.83 | 6.33 |
| 2019 | 6.48 | 5.77 | 6.03 | 5.21 | 5.56 | 5.37 | 5.06 | 5.02 | 5.45 | 6.04 | 6.20 | 6.25 |
| 2018 | 6.40 | 6.04 | 6.37 | 5.18 | 5.24 | 5.23 | 4.99 | 4.98 | 5.38 | 6.08 | 6.25 | 6.33 |
| 2017 | 6.79 | 5.77 | 5.88 | 5.09 | 5.28 | 5.12 | 5.07 | 5.18 | 5.20 | 5.61 | 6.17 | 6.64 |
- 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 4.86 TWh, highest 6.79 TWh. Colours are relative to Switzerland alone.
Low carbon share of generation by month
Look for the brightest columns. Averaged over 2017 to 2025, the low carbon share is highest in July (96%) and lowest in February (93%), a gap of 3.0 points.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 94% | 94% | 94% | 95% | 96% | 96% | 95% | 95% | 95% | 94% | 94% | 93% |
| 2024 | 95% | 95% | 95% | 95% | 95% | 96% | 97% | 97% | 96% | 95% | 95% | 94% |
| 2023 | 94% | 93% | 94% | 94% | 95% | 96% | 96% | 96% | 96% | 95% | 95% | 95% |
| 2022 | 93% | 93% | 93% | 94% | 95% | 95% | 95% | 96% | 95% | 94% | 93% | 94% |
| 2021 | 94% | 94% | 93% | 94% | 95% | 95% | 96% | 95% | 95% | 92% | 92% | 93% |
| 2020 | 93% | 93% | 94% | 95% | 96% | 96% | 95% | 95% | 95% | 95% | 93% | 93% |
| 2019 | 94% | 93% | 94% | 96% | 95% | 96% | 97% | 97% | 95% | 94% | 93% | 93% |
| 2018 | 93% | 93% | 95% | 96% | 96% | 96% | 97% | 96% | 94% | 92% | 93% | 93% |
| 2017 | 93% | 89% | 93% | 95% | 96% | 96% | 97% | 96% | 94% | 93% | 93% | 92% |
- Lower low carbon share
- Higher low carbon share
- No data
- Each cell shows the low carbon share. Lowest cell 89%, highest 97%. Colours are relative to Switzerland alone.
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of May 2026. Complete calendar years only.
Countries With a Similar Electricity Mix
Ember annual, 2025Switzerland's closest match is Sweden, 73.2% the same.
- Sweden 73.2% the same Sweden generates 22.6 points more wind than Switzerland
- Canada 69.8% the same Canada generates 19.3 points more gas than Switzerland
- Slovenia 69.7% the same Slovenia generates 24.8 points less hydro than Switzerland
- Brazil 69.3% the same Brazil generates 27.8 points less nuclear than Switzerland
- Austria 68.3% the same Austria generates 29.9 points less nuclear than Switzerland
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
Switzerland Electricity FAQ
What is the main source of electricity in Switzerland?
Hydro was the largest source of electricity in Switzerland in 2025, supplying 52.3% of generation, followed by nuclear (29.9%) and solar (12.1%). Figures are Ember annual statistics.
How much electricity does Switzerland use?
Switzerland used 65.2 TWh of electricity in 2025, about 7.26 MWh per person.
How clean is Switzerland's electricity?
Generating a kilowatt hour of electricity in Switzerland emitted 39 gCO2/kWh in 2025, and low carbon sources supplied 97.7% of generation. That is 91% below the world average of 460 gCO2/kWh.
Does Switzerland import electricity?
Yes. Switzerland imported 150 GWh more electricity than it exported in 2025.
When does Switzerland use the most electricity?
Averaged over 2017 to 2025, Switzerland's electricity demand is highest in January and lowest in August. The busiest month uses 26% more electricity per day than the quietest (Ember monthly data).
Related
Cite this page
World Power Monitor. (2026). Switzerland Electricity: Generation Mix, Demand and Emissions. https://worldpowermonitor.com/countries/switzerland/
World Power Monitor. Switzerland Electricity: Generation Mix, Demand and Emissions. Data as of 2026-05. Data from Ember. https://worldpowermonitor.com/countries/switzerland/
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title = {{Switzerland Electricity: Generation Mix, Demand and Emissions}},
author = {{World Power Monitor}},
year = {2026},
note = {Data as of 2026-05. Data from Ember.},
url = {https://worldpowermonitor.com/countries/switzerland/}
} Permalink: https://worldpowermonitor.com/countries/switzerland/
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