138 solar installations with 3.1 MWp of capacity are installed in Lachen.
Go to the communityRoof potential
The suitable roofs of Lachen could deliver around 38 GWh of solar power a year. An estimated ~8.2% of it is used today.
A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.
Lachen, SZ
Wangen (SZ), SZ
Wangen, SZ
Altendorf, SZ
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) |
|---|---|---|
| 2012 | 2 | 22 |
| 2013 | 3 | 53 |
| 2014 | 1 | 498 |
| 2015 | 2 | 17 |
| 2016 | 6 | 63 |
| 2017 | 4 | 78 |
| 2018 | 4 | 69 |
| 2019 | 7 | 222 |
| 2020 | 7 | 127 |
| 2021 | 9 | 144 |
| 2022 | 16 | 316 |
| 2023 | 27 | 599 |
| 2024 | 33 | 589 |
| 2025 | 13 | 165 |
| 2026 | 4 | 135 |
3.1 MWp have been added since 2012.
| Month | GWh |
|---|---|
| Jan | 1 |
| Feb | 1.7 |
| Mar | 3.1 |
| Apr | 4.3 |
| May | 4.8 |
| Jun | 5.2 |
| Jul | 5.4 |
| Aug | 4.8 |
| Sept | 3.5 |
| Oct | 2.2 |
| Nov | 1.1 |
| Dec | 0.8 |
