How much solar power does Thônex already produce?

512 solar installations with 8.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~13% of the municipality's roof potential.

Where do these numbers come from?

From federal open data: the register of electricity production plants and the solar potential of Swiss municipalities (Swiss Federal Office of Energy), plus swisstopo municipal boundaries. We only show totals per municipality, never individual installations.

Can I start a LEG in Thônex?

Yes. A local electricity community is possible in any municipality, as long as all participants are in the same grid area and close to each other. UpGrid handles registration, metering and billing.

All municipalities in the canton of Genève

Solar power · Canton of GenèveLEG forming

Solar power in Thônex

512 solar installations with 8.2 MWp of capacity are installed in Thônex.

Go to the community

Solar installations: 512
Installed capacity: 8.2 MWp
Roof potential in use: ~13%; Estimate
Rank in the canton of Genève: 5 of 45; by roof potential in use

Growth by build yearNew capacity installed per year in kWp

Roof potential

How much sun falls on the roofs of Thônex

The suitable roofs of Thônex could deliver around 62 GWh of solar power a year. An estimated ~13% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Thônex

A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.

Communities in Thônex

Services industriels de Genève - Thônex
Forming
Thônex, GE

Communities nearby

Services industriels de Genève - Chêne-Bourg
Forming
Chêne-Bourg, GE
Services industriels de Genève - Puplinge
Forming
Puplinge, GE
Services industriels de Genève - Chêne-Bougeries
Forming
Chêne-Bougeries, GE

Join the LEG in Thônex

Get solar power from your neighbourhood. Joining is free and you keep your electricity supplier.

Go to the community

Questions about solar power in Thônex

How much solar power does Thônex already produce?: 512 solar installations with 8.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~13% of the municipality's roof potential.
Where do these numbers come from?: From federal open data: the register of electricity production plants and the solar potential of Swiss municipalities (Swiss Federal Office of Energy), plus swisstopo municipal boundaries. We only show totals per municipality, never individual installations.
Can I start a LEG in Thônex?: Yes. A local electricity community is possible in any municipality, as long as all participants are in the same grid area and close to each other. UpGrid handles registration, metering and billing.

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	19	119
2012	6	99
2013	14	752
2014	4	27
2015	16	109
2016	12	233
2017	16	125
2018	15	195
2019	33	284
2020	45	537
2021	43	937
2022	66	1’504
2023	96	1’591
2024	84	871
2025	39	728
2026	4	42

Month	GWh
Jan	1.5
Feb	2.6
Mar	5
Apr	6.8
May	8.1
Jun	8.9
Jul	9.3
Aug	8.1
Sept	5.9
Oct	3.4
Nov	1.6
Dec	1.2

Solar power in Thônex

How much sun falls on the roofs of Thônex

A LEG is forming in Thônex

Communities in Thônex

Services industriels de Genève - Thônex

Communities nearby

Services industriels de Genève - Chêne-Bourg

Services industriels de Genève - Puplinge

Services industriels de Genève - Chêne-Bougeries

Join the LEG in Thônex

Questions about solar power in Thônex