Energy · 2026

Rooftop solar electricity potential: ranking of municipalities

Rooftop solar electricity potential: Zürich comes top with 1,133 GWh/year and Rongellen comes last with 0.5 GWh/year. The median across 2,114 municipalities is 19.0 GWh/year.

Podium and top 100

1Zürich1,133 GWh/year 2Bern561.0 GWh/year 3Basel545.6 GWh/year

#	Municipality	Canton	Rooftop solar electricity potential
1	Zürich	Zürich	1,133 GWh/year
2	Bern	Bern	561.0 GWh/year
3	Basel	Basel-Stadt	545.6 GWh/year
4	Winterthur	Zürich	466.1 GWh/year
5	Lausanne	Vaud	434.1 GWh/year
6	Geneva	Geneva	420.2 GWh/year
7	Lugano	Ticino	364.0 GWh/year
8	Bellinzona	Ticino	358.2 GWh/year
9	St. Gallen	St. Gallen	323.1 GWh/year
10	Sion	Valais	263.0 GWh/year
11	Thun	Bern	260.0 GWh/year
12	Biel/Bienne	Bern	254.3 GWh/year
13	Lucerne	Lucerne	252.5 GWh/year
14	Schaffhausen	Schaffhausen	219.1 GWh/year
15	Köniz	Bern	212.2 GWh/year
16	La Chaux-de-Fonds	Neuchâtel	201.7 GWh/year
17	Chur	Grisons	191.1 GWh/year
18	Frauenfeld	Thurgau	191.0 GWh/year
19	Mendrisio	Ticino	186.3 GWh/year
20	Neuchâtel	Neuchâtel	185.9 GWh/year
21	Emmen	Lucerne	176.8 GWh/year
22	Bulle	Fribourg	167.3 GWh/year
23	Val de Bagnes	Valais	167.0 GWh/year
24	Yverdon-les-Bains	Vaud	165.7 GWh/year
25	Martigny	Valais	161.1 GWh/year
26	Wil (SG)	St. Gallen	157.1 GWh/year
27	Sierre	Valais	156.8 GWh/year
28	Uster	Zürich	154.9 GWh/year
29	Val-de-Ruz	Neuchâtel	153.5 GWh/year
30	Kloten	Zürich	150.2 GWh/year
31	Meyrin	Geneva	149.2 GWh/year
32	Gossau (SG)	St. Gallen	147.4 GWh/year
33	Glarus Nord	Glarus	147.2 GWh/year
34	Rapperswil-Jona	St. Gallen	146.4 GWh/year
35	Vernier	Geneva	145.5 GWh/year
36	Langenthal	Bern	143.6 GWh/year
37	Saanen	Bern	139.2 GWh/year
38	Fribourg	Fribourg	137.2 GWh/year
39	Crans-Montana	Valais	136.8 GWh/year
40	Davos	Grisons	134.0 GWh/year
41	Burgdorf	Bern	132.5 GWh/year
42	Baar	Zug	131.9 GWh/year
43	Val-de-Travers	Neuchâtel	127.7 GWh/year
44	Altstätten	St. Gallen	127.0 GWh/year
45	Einsiedeln	Schwyz	126.2 GWh/year
46	Wetzikon (ZH)	Zürich	124.6 GWh/year
47	Dübendorf	Zürich	124.5 GWh/year
48	Pratteln	Basel-Landschaft	123.9 GWh/year
49	Oberriet (SG)	St. Gallen	123.7 GWh/year
50	Aarau	Aargau	123.1 GWh/year
51	Lyss	Bern	120.9 GWh/year
52	Wädenswil	Zürich	120.7 GWh/year
53	Kreuzlingen	Thurgau	120.5 GWh/year
54	Zug	Zug	120.2 GWh/year
55	Baden	Aargau	117.5 GWh/year
56	Locarno	Ticino	117.2 GWh/year
57	Schwyz	Schwyz	116.3 GWh/year
58	Regensdorf	Zürich	116.3 GWh/year
59	Grenchen	Solothurn	115.0 GWh/year
60	Muttenz	Basel-Landschaft	114.7 GWh/year
61	Hinwil	Zürich	114.1 GWh/year
62	Weinfelden	Thurgau	113.7 GWh/year
63	Conthey	Valais	111.6 GWh/year
64	Dietikon	Zürich	110.7 GWh/year
65	Volketswil	Zürich	109.7 GWh/year
66	Monthey	Valais	108.5 GWh/year
67	Wohlen (AG)	Aargau	107.8 GWh/year
68	Kriens	Lucerne	107.7 GWh/year
69	Glarus Süd	Glarus	107.2 GWh/year
70	Amriswil	Thurgau	106.9 GWh/year
71	Delémont	Jura	106.6 GWh/year
72	Oftringen	Aargau	106.5 GWh/year
73	Lancy	Geneva	105.7 GWh/year
74	Willisau	Lucerne	104.8 GWh/year
75	Olten	Solothurn	104.5 GWh/year
76	Nendaz	Valais	102.6 GWh/year
77	Aigle	Vaud	102.3 GWh/year
78	Estavayer	Fribourg	101.8 GWh/year
79	Montreux	Vaud	101.2 GWh/year
80	Ecublens (VD)	Vaud	100.8 GWh/year
81	Ollon	Vaud	100.0 GWh/year
82	Steffisburg	Bern	100.0 GWh/year
83	Möhlin	Aargau	99.8 GWh/year
84	Satigny	Geneva	99.7 GWh/year
85	Brig-Glis	Valais	99.5 GWh/year
86	Payerne	Vaud	99.5 GWh/year
87	Eschenbach (SG)	St. Gallen	96.6 GWh/year
88	Stabio	Ticino	96.5 GWh/year
89	Solothurn	Solothurn	96.4 GWh/year
90	Arbon	Thurgau	95.2 GWh/year
91	Murten	Fribourg	95.1 GWh/year
92	Sarnen	Obwalden	95.0 GWh/year
93	Illnau-Effretikon	Zürich	94.8 GWh/year
94	Bülach	Zürich	94.5 GWh/year
95	Uzwil	St. Gallen	93.9 GWh/year
96	Tafers	Fribourg	92.9 GWh/year
97	Plan-les-Ouates	Geneva	92.8 GWh/year
98	Liestal	Basel-Landschaft	92.5 GWh/year
99	Reinach (BL)	Basel-Landschaft	92.2 GWh/year
100	Kirchberg (SG)	St. Gallen	91.8 GWh/year

Bottom of the ranking

#	Municipality	Canton	Rooftop solar electricity potential
2100	Cerentino	Ticino	1.6 GWh/year
2101	Berken	Bern	1.5 GWh/year
2102	Rossenges	Vaud	1.5 GWh/year
2103	Zwischbergen	Valais	1.4 GWh/year
2104	Rebévelier	Bern	1.4 GWh/year
2105	Burg im Leimental	Basel-Landschaft	1.4 GWh/year
2106	Riemenstalden	Schwyz	1.3 GWh/year
2107	Meienried	Bern	1.2 GWh/year
2107	Mauraz	Vaud	1.2 GWh/year
2109	Bister	Valais	1.1 GWh/year
2110	Villars-Epeney	Vaud	1.1 GWh/year
2111	Linescio	Ticino	0.8 GWh/year
2112	Schelten	Bern	0.8 GWh/year
2113	Kammersrohr	Solothurn	0.8 GWh/year
2114	Rongellen	Grisons	0.5 GWh/year

Regions compared

Total for each region.

Bern9,185 GWh/year
Zürich7,291 GWh/year
Vaud6,033 GWh/year
Aargau5,431 GWh/year
St. Gallen4,072 GWh/year
Valais3,880 GWh/year
Ticino3,370 GWh/year
Lucerne3,326 GWh/year
Fribourg3,325 GWh/year
Thurgau2,818 GWh/year
Grisons2,630 GWh/year
Solothurn2,373 GWh/year
Geneva2,053 GWh/year
Basel-Landschaft1,865 GWh/year
Neuchâtel1,237 GWh/year
Schwyz1,061 GWh/year
Jura1,000.0 GWh/year
Schaffhausen704.9 GWh/year
Zug689.7 GWh/year
Basel-Stadt633.9 GWh/year
Appenzell Ausserrhoden428.0 GWh/year
Obwalden342.1 GWh/year
Glarus329.8 GWh/year
Uri289.1 GWh/year
Nidwalden253.4 GWh/year
Appenzell Innerrhoden162.0 GWh/year

Other rankings on the same theme

Oil or gas heating systems Heat pumps as main heating Wood heating systems District heating Photovoltaic installations Installed photovoltaic capacity per 1,000 inhabitants Rooftop solar potential per inhabitant

Frequently asked questions

Which municipality ranks first for “Rooftop solar electricity potential”?

Zürich ranks first for “Rooftop solar electricity potential”, with 1,133 GWh/year.

What is the median for “Rooftop solar electricity potential”?

The median across the 2,114 ranked municipalities is 19.0 GWh/year.