Which municipality in canton Geneva has the greatest solar potential?

Geneva, whose roofs could generate about 420 GWh of electricity a year (2025) — the greatest modelled roof potential of any municipality in canton Geneva.

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.

← Canton Geneva overview

Ranking · Data 2025 · Source: BFS

The greatest solar potential in canton Geneva

Name: Solar potential in canton Geneva (GE): full ranking (2025)
Creator: Bundesamt für Energie (BFE)

National ranking →

Geneva has the greatest solar-energy potential in canton Geneva: its roofs could generate about 420 GWh of electricity a year. Next come Meyrin (149 GWh) and Vernier (146 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	Geneva	420 GWh	206'635
2	Meyrin	149 GWh	26'882
3	Vernier	146 GWh	37'460
4	Lancy	106 GWh	36'229
5	Satigny	100 GWh	4'577
6	Plan-les-Ouates	93 GWh	12'221
7	Bernex	85 GWh	10'864
8	Carouge	79 GWh	22'311
9	Le Grand-Saconnex	73 GWh	12'806
10	Veyrier	66 GWh	11'917
11	Thônex	62 GWh	16'690
12	Collonge-Bellerive	61 GWh	8'630
13	Chêne-Bougeries	48 GWh	13'876
14	Versoix	45 GWh	13'846
15	Onex	38 GWh	18'886
16	Cologny	37 GWh	6'024
17	Troinex	35 GWh	2'858
18	Perly-Certoux	31 GWh	3'194
19	Pregny-Chambésy	28 GWh	4'035
20	Chêne-Bourg	27 GWh	9'450
21	Confignon	24 GWh	4'552
22	Vandœuvres	24 GWh	2'958
23	Jussy	20 GWh	1'173
24	Bellevue	20 GWh	4'104
25	Bardonnex	19 GWh	2'548
26	Anières	18 GWh	2'521
27	Genthod	18 GWh	2'896
28	Meinier	18 GWh	2'079
29	Corsier	16 GWh	2'282
30	Puplinge	15 GWh	2'558
31	Dardagny	15 GWh	1'853
32	Collex-Bossy	12 GWh	1'685
33	Avusy	11 GWh	1'408
34	Aire-la-Ville	11 GWh	1'160
35	Avully	11 GWh	1'757
36	Choulex	11 GWh	1'247
37	Cartigny	9 GWh	1'046
38	Chancy	9 GWh	1'651
39	Russin	7 GWh	524
40	Céligny	7 GWh	874
41	Hermance	6 GWh	1'236
42	Presinge	6 GWh	726
43	Soral	6 GWh	961
44	Laconnex	6 GWh	670
45	Gy	5 GWh	550

Bundesamt für Energie (BFE), retrieved 10.08.2026

How we measure this

BFE

Modelled 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 Geneva has the greatest solar potential?: Geneva, whose roofs could generate about 420 GWh of electricity a year (2025) — the greatest modelled roof potential of any municipality in canton Geneva.
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.