Delémont has the greatest solar-energy potential in canton Jura: its roofs could generate about 107 GWh of electricity a year. Next come Haute-Sorne (80 GWh) and Porrentruy (63 GWh). This is modelled roof potential — largest where there is the most roof area, not current generation. Source: BFE.
Ranking
BFE · 2025| Rank | Municipality | Roof potential | Residents |
|---|---|---|---|
| 1 | Delémont | 107 GWh | 12'991 |
| 2 | Haute-Sorne | 80 GWh | 7'532 |
| 3 | Porrentruy | 63 GWh | 6'597 |
| 4 | Val Terbi | 41 GWh | 3'240 |
| 5 | Courgenay | 39 GWh | 2'463 |
| 6 | Saignelégier | 35 GWh | 2'528 |
| 7 | Courrendlin | 33 GWh | 3'737 |
| 8 | Courroux | 33 GWh | 3'439 |
| 9 | Haute-Ajoie | 32 GWh | 1'063 |
| 10 | Alle | 30 GWh | 1'965 |
| 11 | Boncourt | 28 GWh | 1'159 |
| 12 | La Baroche | 26 GWh | 1'124 |
| 13 | Clos du Doubs | 26 GWh | 1'289 |
| 14 | Courtételle | 25 GWh | 2'784 |
| 15 | Le Noirmont | 24 GWh | 1'936 |
| 16 | Basse-Allaine | 23 GWh | 1'182 |
| 17 | Les Breuleux | 23 GWh | 1'631 |
| 18 | Fontenais | 21 GWh | 1'645 |
| 19 | Develier | 20 GWh | 1'397 |
| 20 | Basse-Vendline | 20 GWh | 741 |
| 21 | Bure | 18 GWh | 660 |
| 22 | Les Bois | 18 GWh | 1'246 |
| 23 | Cornol | 14 GWh | 1'082 |
| 24 | Montfaucon | 14 GWh | 565 |
| 25 | Muriaux | 13 GWh | 513 |
| 26 | Lajoux | 13 GWh | 712 |
| 27 | Boécourt | 13 GWh | 953 |
| 28 | Coeuve | 12 GWh | 720 |
| 29 | Fahy | 11 GWh | 328 |
| 30 | Vendlincourt | 11 GWh | 554 |
| 31 | Les Genevez | 11 GWh | 518 |
| 32 | Courtedoux | 10 GWh | 749 |
| 33 | Grandfontaine | 10 GWh | 362 |
| 34 | Pleigne | 10 GWh | 368 |
| 35 | Damphreux-Lugnez | 10 GWh | 376 |
| 36 | Le Bémont | 9 GWh | 299 |
| 37 | Bourrignon | 9 GWh | 259 |
| 38 | Movelier | 8 GWh | 422 |
| 39 | Rossemaison | 7 GWh | 767 |
| 40 | Mervelier | 7 GWh | 523 |
| 41 | Saint-Brais | 6 GWh | 248 |
| 42 | Courchapoix | 6 GWh | 456 |
| 43 | Saulcy | 5 GWh | 274 |
| 44 | Courchavon | 5 GWh | 332 |
| 45 | Châtillon | 5 GWh | 500 |
| 46 | Soyhières | 4 GWh | 461 |
| 47 | Ederswiler | 4 GWh | 111 |
| 48 | Les Enfers | 4 GWh | 145 |
| 49 | Soubey | 4 GWh | 123 |
| 50 | Mettembert | 2 GWh | 109 |
How we measure this
BFEModelled annual electricity that rooftop photovoltaics could produce across the whole municipality, in gigawatt-hours per year, from the BFE «Solarenergiepotenziale der Schweizer Gemeinden» model (2025 snapshot). It is a potential, not installed capacity or actual generation, and it scales with roof area — so large towns lead simply because they have more roofs. It is a rolling model snapshot, not an annual survey. The companion roofs-plus-façades scenario adds vertical surfaces.
Frequently asked questions
- Which municipality in canton Jura has the greatest solar potential?
- Delémont, whose roofs could generate about 107 GWh of electricity a year (2025) — the greatest modelled roof potential of any municipality in canton Jura.
- Does this mean the municipality actually produces this much solar power?
- No. It is the modelled potential of the available roof surfaces — the electricity they could generate if fully used. Actual installed photovoltaics produce far less. The figure comes from the BFE solar model and scales with how much roof area a municipality has.