846 solar installations with 27.5 MWp of capacity are installed in La Chaux-de-Fonds.
Go to the communityRoof potential
The suitable roofs of La Chaux-de-Fonds could deliver around 202 GWh of solar power a year. An estimated ~14% of it is used today.
A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.
La Chaux-de-Fonds, NE
Les Planchettes, NE
La Sagne, NE
Val-de-Ruz, NE
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 | 23 | 249 |
| 2012 | 2 | 12 |
| 2013 | 11 | 280 |
| 2014 | 21 | 916 |
| 2015 | 21 | 332 |
| 2016 | 36 | 880 |
| 2017 | 57 | 1’625 |
| 2018 | 48 | 949 |
| 2019 | 56 | 1’603 |
| 2020 | 42 | 1’524 |
| 2021 | 46 | 1’398 |
| 2022 | 100 | 3’100 |
| 2023 | 135 | 3’340 |
| 2024 | 151 | 8’194 |
| 2025 | 88 | 3’042 |
| 2026 | 9 | 105 |
27.3 MWp have been added since 2012.
| Month | GWh |
|---|---|
| Jan | 6.7 |
| Feb | 10.6 |
| Mar | 17.1 |
| Apr | 20.9 |
| May | 24 |
| Jun | 26.9 |
| Jul | 28.5 |
| Aug | 24.9 |
| Sept | 18 |
| Oct | 11.8 |
| Nov | 6.8 |
| Dec | 5.3 |
