Which municipality in canton Ticino has the greatest solar potential?

Lugano, whose roofs could generate about 364 GWh of electricity a year (2025) — the greatest modelled roof potential of any municipality in canton Ticino.

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.

Ranking · Data 2025 · Source: BFS

The greatest solar potential in canton Ticino

National ranking →

Lugano has the greatest solar-energy potential in canton Ticino: its roofs could generate about 364 GWh of electricity a year. Next come Bellinzona (358 GWh) and Mendrisio (186 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	Lugano	364 GWh	63'691
2	Bellinzona	358 GWh	45'828
3	Mendrisio	186 GWh	15'076
4	Locarno	117 GWh	16'463
5	Stabio	97 GWh	4'518
6	Gambarogno	81 GWh	4'977
7	Ascona	61 GWh	5'290
8	Balerna	61 GWh	3'415
9	Losone	61 GWh	6'780
10	Tesserete	61 GWh	6'702
11	Biasca	55 GWh	6'213
12	Faido	53 GWh	2'706
13	Chiasso	53 GWh	7'677
14	Monteceneri	52 GWh	4'746
15	Minusio	50 GWh	7'273
16	Collina d'Oro	47 GWh	4'932
17	Bioggio	46 GWh	2'802
18	Gordola	45 GWh	4'877
19	Tresa	44 GWh	3'147
20	Sant'Antonino	44 GWh	2'655
21	Riviera	43 GWh	4'262
22	Arbedo-Castione	41 GWh	5'211
23	Novazzano	41 GWh	2'339
24	Cadenazzo	41 GWh	3'139
25	Blenio	37 GWh	1'752
26	Agno	36 GWh	4'582
27	Morbio Inferiore	35 GWh	4'437
28	Airolo	34 GWh	1'443
29	Caslano	34 GWh	4'393
30	Torricella-Taverne	33 GWh	3'128
31	Maggia	30 GWh	2'686
32	Acquarossa	30 GWh	1'781
33	Serravalle	29 GWh	2'052
34	Cugnasco-Gerra	29 GWh	2'838
35	Brissago	29 GWh	1'577
36	Castel San Pietro	29 GWh	2'241
37	Tenero-Contra	29 GWh	3'417
38	Quinto	28 GWh	1'289
39	Coldrerio	28 GWh	2'838
40	Riva San Vitale	27 GWh	2'740
41	Mezzovico-Vira	27 GWh	1'418
42	Manno	27 GWh	1'381
43	Terre di Pedemonte	26 GWh	2'646
44	Val Mara	26 GWh	3'048
45	Breggia	25 GWh	1'842
46	Vacallo	22 GWh	3'511
47	Bedano	21 GWh	1'501
48	Comano	21 GWh	2'194
49	Massagno	20 GWh	6'976
50	Avegno Gordevio	19 GWh	1'525
51	Lamone	19 GWh	1'748
52	Magliaso	18 GWh	1'609
53	Muzzano	18 GWh	775
54	Centovalli	18 GWh	1'049
55	Verzasca	17 GWh	749
56	Porza	17 GWh	1'696
57	Alto Malcantone	17 GWh	1'374
58	Onsernone	17 GWh	643
59	Canobbio	17 GWh	2'403
60	Muralto	16 GWh	2'513
61	Lavertezzo	16 GWh	1'235
62	Vezia	15 GWh	1'957
63	Savosa	15 GWh	2'315
64	Lumino	15 GWh	1'712
65	Pura	14 GWh	1'368
66	Cadempino	14 GWh	1'601
67	Sorengo	14 GWh	2'153
68	Giornico	14 GWh	1'761
69	Ronco sopra Ascona	14 GWh	516
70	Origlio	13 GWh	1'534
71	Ponte Capriasca	13 GWh	1'965
72	Lavizzara	13 GWh	504
73	Cevio	13 GWh	1'083
74	Orselina	12 GWh	682
75	Grancia	12 GWh	457
76	Paradiso	12 GWh	4'806
77	Gravesano	12 GWh	1'416
78	Arogno	12 GWh	931
79	Cureglia	11 GWh	1'484
80	Morcote	11 GWh	681
81	Brione sopra Minusio	10 GWh	432
82	Melide	10 GWh	1'812
83	Cademario	9 GWh	784
84	Isone	7 GWh	407
85	Pollegio	7 GWh	919
86	Vico Morcote	7 GWh	398
87	Vernate	6 GWh	618
88	Brusino Arsizio	6 GWh	467
89	Mergoscia	6 GWh	194
90	Bissone	6 GWh	945
91	Bedretto	5 GWh	116
92	Dalpe	4 GWh	188
93	Neggio	4 GWh	322
94	Campo (Vallemaggia)	4 GWh	47
95	Personico	4 GWh	320
96	Aranno	4 GWh	348
97	Bosco/Gurin	3 GWh	43
98	Cerentino	2 GWh	39
99	Linescio	1 GWh	42

Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026

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 Ticino has the greatest solar potential?: Lugano, whose roofs could generate about 364 GWh of electricity a year (2025) — the greatest modelled roof potential of any municipality in canton Ticino.
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.