Europe · country explainer · estimated data
Switzerland's power sector in numbers
Ember monthly data 2017-01 → 2026-05 · generation-weighted · CC-BY-4.0
Carbon intensity · 2026-05
54gCO₂e/kWh
#5 cleanest of 80 tracked (2025)
Renewables share
75.8%
clean incl. nuclear: 95.8%
Records
Cleanest: 41 (2018-07)
Dirtiest: 89 (2017-02)
The trend, year by year
| Year | gCO₂e/kWh | Δ | Renewables % | Generation TWh |
|---|---|---|---|---|
| 2025 | 58 | +8 | 67.5 | 67.7 |
| 2024 | 50 | -2 | 67.2 | 81.1 |
| 2023 | 52 | -5 | 63.1 | 72.8 |
| 2022 | 57 | -2 | 58.4 | 64.6 |
| 2021 | 59 | +3 | 65.6 | 65 |
| 2020 | 56 | +3 | 61.8 | 70.4 |
| 2019 | 53 | -1 | 59.6 | 71.9 |
| 2018 | 54 | -3 | 58.5 | 67.6 |
| 2017 | 57 | — | 62.5 | 61.5 |
See Switzerland on the globe. The terminal paints every tracked country's carbon intensity and renewables share worldwide — and the carbon story animates the whole decade.
Open the globe →Source: "Monthly electricity data, Ember" (CC-BY-4.0). Yearly figures are generation-weighted (Σ emissions ÷ Σ generation, complete years only). Monthly statistical data — estimated, not live measurement. Cite as "Voltcast Research, voltcast.com/research/countries/ch".