95 solar installations with 1.6 MWp of capacity are installed in Witterswil.
Go to the communityRoof potential
The suitable roofs of Witterswil could deliver around 12 GWh of solar power a year. An estimated ~13% of it is used today.
A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.
Witterswil, SO
Bättwil, SO
Hofstetten-Flüh, SO
Metzerlen-Mariastein, SO
Get solar power from your neighbourhood. Joining is free and you keep your electricity supplier.
Sources: Swiss Federal Office of Energy (SFOE), swisstopo, opendata.swiss. As of October 2026. Totals per municipality only, no individual installations.
| Build year | Installations | Capacity (kWp) |
|---|---|---|
| before 2012 | 3 | 209 |
| 2012 | 7 | 73 |
| 2013 | 4 | 47 |
| 2014 | 4 | 33 |
| 2015 | 3 | 87 |
| 2016 | 1 | 14 |
| 2017 | 1 | 10 |
| 2018 | 1 | 10 |
| 2019 | 0 | 0 |
| 2020 | 5 | 60 |
| 2021 | 10 | 99 |
| 2022 | 7 | 100 |
| 2023 | 13 | 188 |
| 2024 | 19 | 276 |
| 2025 | 16 | 416 |
| 2026 | 1 | 18 |
1.4 MWp have been added since 2012.
| Month | GWh |
|---|---|
| Jan | 0.4 |
| Feb | 0.6 |
| Mar | 1 |
| Apr | 1.3 |
| May | 1.6 |
| Jun | 1.7 |
| Jul | 1.7 |
| Aug | 1.5 |
| Sept | 1.1 |
| Oct | 0.8 |
| Nov | 0.4 |
| Dec | 0.3 |
