108 solar installations with 3.4 MWp of capacity are installed in Wittnau.
Go to the communityRoof potential
The suitable roofs of Wittnau could deliver around 14 GWh of solar power a year. An estimated ~24% of it is used today.
A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.
Wittnau, AG

Wölflinswil, AG
Wegenstetten, AG
Gipf-Oberfrick, AG
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 | 4 | 50 |
| 2012 | 7 | 140 |
| 2013 | 5 | 1’063 |
| 2014 | 5 | 59 |
| 2015 | 11 | 181 |
| 2016 | 6 | 55 |
| 2017 | 3 | 50 |
| 2018 | 6 | 407 |
| 2019 | 6 | 109 |
| 2020 | 8 | 73 |
| 2021 | 6 | 109 |
| 2022 | 10 | 189 |
| 2023 | 14 | 327 |
| 2024 | 12 | 264 |
| 2025 | 4 | 325 |
| 2026 | 1 | 20 |
3.4 MWp have been added since 2012.
| Month | GWh |
|---|---|
| Jan | 0.3 |
| Feb | 0.6 |
| Mar | 1.2 |
| Apr | 1.6 |
| May | 1.8 |
| Jun | 1.9 |
| Jul | 2.1 |
| Aug | 1.8 |
| Sept | 1.3 |
| Oct | 0.8 |
| Nov | 0.4 |
| Dec | 0.3 |